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  • EARTH RESOURCES AND REMOTE SENSING  (529)
  • Animals  (374)
  • 1995-1999
  • 1985-1989
  • 1975-1979  (903)
  • 1979  (903)
Collection
Keywords
Publisher
Years
  • 1995-1999
  • 1985-1989
  • 1975-1979  (903)
Year
  • 1
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    Earth resources: A continuing bibliography with indexes, issue 21 (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A bibliography list of 369 reports, articles, and other documents introduced into the NASA scientific and technical information system between January 1, 1979 and March 31, 1979 is presented. Emphasis is placed on the use of remote sensing and geophysical instrumentation in spacecraft and aircraft to survey and inventory natural resources and urban areas. Subject matter is grouped according to agriculture and forestry, environmental changes and cultural resources, geodesy and cartography, geology and mineral resources, hydrology and water management, data processing and distribution systems, instrumentation and sensors, and economic analysis.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-SP-7041(21)
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  • 2
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    Remote sensing (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Various imaging techniques are outlined for use in mapping, land use, and land management in Mexico. Among the techniques discussed are pattern recognition and photographic processing. The utilization of information from remote sensing devices on satellites are studied. Multispectral band scanners are examined and software, hardware, and other program requirements are surveyed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-75651
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  • 3
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    Earth Resources: A continuing bibliography with indexes, issue 20 (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: This bibliography lists 273 reports, articles, and other documents introduced into the NASA scientific and technical information system between October 1 and December 31, 1978. Emphasis is placed on the use of remote sensing and geophysical instrumentation in spacecraft and aircraft to survey and inventory natural resources and urban areas. Subject matter is grouped according to agriculture and forestry, environmental changes and cultural resources, geodesy and cartography, geology and mineral resources, hydrology and water management, data processing and distribution systems, instrumentation and sensors, and economic analysis.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-SP-7041(20)
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  • 4
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    NASA policy issues (1979)
    In:  Other Sources
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    Publication Date: 2019-08-28
    Description: U.S. remote sensing policy is discussed, with emphasis on problems associated with the development of operational systems. Certain economic and legislative aspects are examined.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 5
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    Earth resources. A continuing bibliography with indexes, issue 23 (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: This bibliography lists 226 reports, articles, and other documents introduced into the NASA scientific and technical information system between July 1, 1979 and September 30, 1979. Emphasis is placed on the use of remote sensing and geophysical instrumentation in spacecraft and aircraft to survey and inventory natural resources and urban areas. Subject matter is grouped according to agriculture and forestry, environmental changes and cultural resources, geodesy and cartography, geology and mineral resources, hydrology and water management, data processing and distribution systems, instrumentation and sensors, and economic analysis.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-SP-7041(23)
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  • 6
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    Study to determine private sector role in remote sensing (1979)
    In:  CASI
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    Publication Date: 2019-08-28
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-NEWS-RELEASE-79-16 , P79-10016
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  • 7
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    Earth resources: A continuing bibliography with indexes, issue 22, July 1979 (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: This bibliography lists 390 reports, articles, and other documents introduced into the NASA scientific and technical information system between 1 April 1979 and 30 June 1979. Emphasis is placed on the use of remote sensing and geophysical instrumentation in spacecraft and aircraft to survey and inventory natural resources and urban areas. Subject matter is grouped according to agriculture and forestry, environmental changes and cultural resources, geodesy and cartography, geology and mineral resources, hydrology and water management, data processing and distribution systems, instrumentation and sensors, and economic analysis.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-SP-7041(22)
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  • 8
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    Pilot interministerial operation for remote sensing (1979)
    In:  CASI
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    Publication Date: 2019-08-28
    Description: Advantages and disadvantages of traditional methods of obtaining required information for land and resources management and the possibilities of remote sensing are discussed. The services available, organization and objectives of the pilot operation are presented. Emphasis is placed on multidisciplinary dialog among designers, builders, operators, interpreters and users in all phases. The principles, operation and practical applications of remote sensing systems and processing systems under the pilot operation are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-75609
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  • 9
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    LANDSAT supports data needs for EPA 208 planning (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Excerpts from federal legislation and regulations mandating areawide waster treatment management as a means of restoring and maintaining the integrity of the nation's water are presented along with requirements for grants to the states for water quality planning, management, and implementation. Experiences using LANDSAT to identify nonpoint sources of water pollution as well as land/use/land cover features in South Dakota, Kentucky, Georgia, New Jersey, and Texas are described. Present activities suggest that this type of remote sensing is an efficient, effective tool for areawide water quality planning. Interaction with cognizant federal, state, and local government personnel involved in EPA section 208 planning activities can guide the development of new capabilities and enhance their utility and prospect for use.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E81-10148 , NASA-TM-82382
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  • 10
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    Value of crops: Quantity, quality and cost price (1979)
    In:  CASI
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    Publication Date: 2019-08-28
    Description: Possibilities of using algae as a nutritional supplement are examined. The nutritional value and protein content of spirulines of blue algae are discussed. A cost analysis of growing them artificially is presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-75925
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  • 11
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    Agreement protocol between the CNES (National French Space Study Center) and the Swedish Space Commission (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The detailed arrangements made between France and Sweden to develop a satellite (and the associated receiving stations) which will perform systematic, repetitive observations of land masses, with the purpose of terrestrial resource exploration are described.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-75600
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  • 12
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    LANDSAT's role in state coastal management programs (1979)
    In:  CASI
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    Publication Date: 2019-08-27
    Description: The framework for state programs found in the Coastal Zone Management Act and examples of state opportunities to use LANDSAT are presented. Present activities suggest that LANDSAT remote sensing can be an efficient, effective tool for land use planning and coastal zone management.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E81-10147 , NASA-TM-82381
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  • 13
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    Mathematic modeling of the Earth's surface and the process of remote sensing (1979)
    In:  CASI
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    Publication Date: 2019-08-27
    Description: It is shown that real data from remote sensing of the Earth from outer space are not best suited to the search for optimal procedures with which to process such data. To work out the procedures, it was proposed that data synthesized with the help of mathematical modeling be used. A criterion for simularity to reality was formulated. The basic principles for constructing methods for modeling the data from remote sensing are recommended. A concrete method is formulated for modeling a complete cycle of radiation transformations in remote sensing. A computer program is described which realizes the proposed method. Some results from calculations are presented which show that the method satisfies the requirements imposed on it.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-75622 , PR-354
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  • 14
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    SeaSat-A Satellite Scatterometer Mission Summary and Engineering Assessment Report (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: The SeaSat-A satellite was launched on June 26, 1978 and operated in orbit through October 9, 1978. The SeaSat-A satellite scatterometer ocean surface wind field sensor began taking data on July 10, 1978 with virtually continuous operation for 95-1/2 days. A review of mission events significant to the scatterometer and a report on the hardware and software engineering assessment are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-80122
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  • 15
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    LANDSAT-3 has multispectral scanner problem (1979)
    In:  CASI
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    Publication Date: 2019-08-13
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-NEWS-RELEASE-79-67 , P79-10053
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  • 16
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    Overview of the NASA tropospheric environmental quality remote sensing program (1979)
    In:  Other Sources
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    Publication Date: 2019-07-27
    Description: This paper will summarize the current NASA Tropospheric Environmental Quality Remote Sensing Program for studying the global and regional troposphere from space, airborne and ground-based platforms. As part of the program to develop remote sensors for utilization from space, NASA has developed a series of passive and active remote sensors which have undergone field test measurements from airborne and ground platforms. Recent measurements with active lidar and passive gas filter correlation and infrared heterodyne techniques will be summarized for measurements of atmospheric aerosols, CO, SO2, O3, and NH3. These measurements provide the data base required to assess the sensitivity of remote sensors for applications to urban and regional field measurement programs. Studies of Earth Observation Satellite Systems are currently being performed by the scientific community to assess the capability of satellite imagery to detect regions of elevated pollution in the troposphere. The status of NASA sponsored research efforts in interpreting satellite imagery for determining aerosol loadings over land and inland bodies of water will be presented, and comments on the potential of these measurements to supplement in situ and airborne remote sensors in detecting regional haze will be made.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Atmospheric effects on radiative transfer; August 29, 30, 1979; San Diego, CA
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  • 17
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    Calibration procedures for measurement of reflectance factor in remote sensing field research (1979)
    In:  Other Sources
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    Publication Date: 2019-07-27
    Description: A means by which measurements of the optical properties of crops and soils can be knowledgeably compared from site to site and instrument to instrument is presented in detail. The definition of bidirectional reflectance factor is reviewed and discussed. Procedures for field implementation are illustrated and discussed. Spectral and goniometric properties of laboratory and field reference surfaces and typical environmental subjects serve as a basis for analysis of uncertainties introduced by differing illumination conditions. Results of a comparison of the performance of three spectrometer systems are presented and discussed. It is concluded that intelligent use of the bidirectional reflectance factor technique is an accurate and practical means to obtain the spectral, optical properties of crops and soils needed for advancements in agricultural remote sensing.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Measurements of optical radiations; August 29, 30, 1979; San Diego, CA
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  • 18
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    Earth feature identification and tracking technology development (1979)
    In:  Other Sources
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    Publication Date: 2019-07-27
    Description: The paper discusses needs for smart sensing in terrestrial and atmospheric remote sensing as related to current technology and a scheduled Shuttle experiment. An approach is outlined involving Shuttle-borne experiments to develop earth feature identification and tracking technology including a Feature Identification and Location Experiment (FILE) scheduled for flight on the NASA Shuttle with an objective of classifying earth features into categories of bare land, water, vegetation, and clouds, snow, and ice. The plan for evolution of the FILE-related technology leads to capabilities for pointing instruments to predetermined sites, reacquiring earth features or landmarks, and tracking features such as coastlines and rivers. Technology concepts relative to an overall system transfer function is discussed, and the development status outlined.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Smart sensors; April 17, 18, 1979; Washington, D. C.
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  • 19
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    Advances in the development of remote sensing technology for agricultural applications (1979)
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    Publication Date: 2019-07-27
    Description: The application of remote sensing technology to crop forecasting is discussed. The importance of crop forecasts to the world economy and agricultural management is explained, and the development of aerial and spaceborne remote sensing for global crop forecasting by the United States is outlined. The structure, goals and technical aspects of the Large Area Crop Inventory Experiment (LACIE) are presented, and main findings on the accuracy, efficiency, applicability and areas for further study of the LACIE procedure are reviewed. The current status of NASA crop forecasting activities in the United States and worldwide is discussed, and the objectives and organization of the newly created Agriculture and Resources Inventory Surveys through Aerospace Remote Sensing (AgRISTARS) program are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: IAF PAPER 79-259 , International Astronautical Federation, International Astronautical Congress; Sept. 17-22, 1979; Munich
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  • 20
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    Improvement of selected satellite applications through the use of microwave data (1979)
    In:  Other Sources
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    Publication Date: 2019-07-27
    Description: This paper describes an analysis of a data set in which satellite acquired microwave data (Seasat Synthetic Aperture Radar) have been registered with Landsat Multispectral Scanner data and the combined data processed using conventional multichannel spectral pattern recognition programs. Results of this analysis indicate that the combined data set offers improvement in surface classification that is significant to certain applications. A brief description of the registration procedure is given. The improvement in results rendered to selected resource management applications is discussed. The presented results are preliminary due to the short time that the satellite microwave data have been available; however, a more comprehensive analysis is in progress and will be completed during the coming year.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: IAF PAPER 79-244 , International Astronautical Federation, International Astronautical Congress; Sept. 17-22, 1979; Munich
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  • 21
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    Satellite monitoring of sea surface pollution (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-20
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10287 , NASA-CR-162274 , PR-2-13/P5
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  • 22
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    Landsat-based multiphase estimation of California's irrigated lands (1979)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: Currently, inventory of California's irrigated lands is performed on a seven year cycle. Since 1975, the University of California in cooperation with NASA and the California Department of Water Resources has been developing and testing techniques to utilize a Landsat based remote sensing system to produce statewide estimates in a single year. The proposed system utilizes multiphase sampling, stratification and multitemporal Landsat imagery to produce the estimate. Early research concentrated on regional estimates to develop the techniques. This year, an inventory of the entire state of California is being performed. In addition, research on the utilization of digital analysis for estimating irrigated acreage and the determination of specific crop types (manual and digital analysis) is also underway.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Fall Technical Meeting; Sep 17, 1979 - Sep 21, 1979; Sioux Falls, SD
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  • 23
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    Machine processing of remotely sensed data; Proceedings of the Fifth Annual Symposium, Purdue University, West Lafayette, Ind., June 27-29, 1979 (1979)
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    Publication Date: 2019-07-13
    Description: Papers are presented on techniques and applications for the machine processing of remotely sensed data. Specific topics include the Landsat-D mission and thematic mapper, data preprocessing to account for atmospheric and solar illumination effects, sampling in crop area estimation, the LACIE program, the assessment of revegetation on surface mine land using color infrared aerial photography, the identification of surface-disturbed features through a nonparametric analysis of Landsat MSS data, the extraction of soil data in vegetated areas, and the transfer of remote sensing computer technology to developing nations. Attention is also given to the classification of multispectral remote sensing data using context, the use of guided clustering techniques for Landsat data analysis in forest land cover mapping, crop classification using an interactive color display, and future trends in image processing software and hardware.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 24
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    Experiments for improved positioning by means of integrated Doppler satellite observations and the NNSS broadcast ephemeris (1979)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: A study to improve position determination using broadcast ephemeris in Doppler data reduction is presented. The uncertainty of the broadcast ephemeris was assessed, and sample autocovariances were computed for acceleration, velocity, and position considering the state disturbance as a signal. An experiment was made in which three stations coobserved 12 passes, and the removal of the radial bias resulted in a chord distance which was in better agreement with the ground survey. In the second experiment, the station positions of the first test simulated the range observations, and the autocovariance function of the acceleration signal in the Cartesian coordinate system was used in an adaptive filtering procedure to improve the state of the satellite in one pass.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Geodetic Symposium on Satellite Doppler Positioning; Jan 22, 1979 - Jan 26, 1979; Austin, TX
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  • 25
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    Using guided clustering techniques to analyze Landsat data for mapping forest land cover in northern California (1979)
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    Publication Date: 2019-07-13
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 26
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    Pasture/wheat surface temperature differences - Indicator of relative soil moisture differences (1979)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 27
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    Landsat-D data acquisition and processing (1979)
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    Publication Date: 2019-07-13
    Description: The Landsat-D system, in which S-band and X-band data links will provide real-time direct transmission of sensor data, is described. System performance objectives include input data quantity of 200 MSS scenes/day and 100 TM scenes/day by the Domestic Communication Satellite, and processing capability, in a pipeline mode, of 2.6 x 10 to the 11th input bits of sensor data per 16-hour day. Data processing techniques, including automated cloudcover assessment, control point library build system, radiometric calibration, and geometric correction are discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 28
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    Machine processing of Landsat MSS data and DMA topographic data for forest cover type mapping (1979)
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    Publication Date: 2019-07-13
    Description: A study with the objective of developing and testing techniques which utilize both digital topographic data and Landsat MSS spectral data to map forest cover types is examined. Emphasis is given to the topographic distribution model (TDM), which combines point-by-point information about forest species, elevation, slope, and aspect to quantitatively describe topographic positions. Results show the stratified random sample approach to be very effective for developing the TDM, while the use of topographic data significantly improved the overall classification accuracy of forest cover types as compared to using spectral data alone.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 29
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    A system for processing Landsat and other georeferenced data for resource management applications (1979)
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    Publication Date: 2019-07-13
    Description: The NASA Earth Resources Laboratory has developed a transferrable system for processing Landsat and disparate data with capabilities for digital data classification, georeferencing, overlaying, and data base management. This system is known as the Earth Resources Data Analysis System. The versatility of the system has been demonstrated with applications in several disciplines. A description is given of a low-cost data system concept that is suitable for transfer to one's available in-house minicomputer or to a low-cost computer purchased for this purpose. Software packages are described that process Landsat data to produce surface cover classifications and that geographically reference the data to the UTM projection. Programs are also described that incorporate several sets of Landsat derived information, topographic information, soils information, rainfall information, etc., into a data base. Selected application algorithms are discussed and sample products are presented. The types of computers on which the low-cost data system concept has been implemented are identified, typical implementation costs are given, and the source where the software may be obtained is identified.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 30
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    The use of Landsat multispectral data to derive land cover information for the location and quantification of non-point source water pollutants (1979)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 31
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    A non-interactive approach to land use determination (1979)
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    Publication Date: 2019-07-13
    Description: An operational procedure for use by the Corps of Engineers to acquire land use information for hydrologic planning purposes is described. The operational constraints preclude the use of dedicated, interactive image processing facilities. The procedure combines manual interpretation techniques and the batch-mode computer analysis of Landsat digital data. An example of the application of the procedure to an urban watershed is described.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 32
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    California desert resource inventory using multispectral classification of digitally mosaicked Landsat frames (1979)
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    Publication Date: 2019-07-13
    Description: Procedures for adjustment of brightness values between frames and the digital mosaicking of Landsat frames to standard map projections are developed for providing a continuous data base for multispectral thematic classification. A combination of local terrain variations in the Californian deserts and a global sampling strategy based on transects provided the framework for accurate classification throughout the entire geographic region.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Machine processing of remotely sensed data; Jun 27, 1979 - Jun 29, 1979; West Lafayette, IN
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  • 33
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    An evaluation of Landsat 3 RBV imagery for an area of complex terrain in Southern Italy (1979)
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    Publication Date: 2019-07-13
    Description: Return Beam Videcon imagery from Landsat 3 was obtained in August, 1978 for part of Southern Italy in the regions of Basilicata and Apulia. The resolution of this imagery for medium contrast objects is approximately 40 meters and is shown to provide significant information concerning land cover and fluvial morphometry. Because of the wide spectral band width which is sensed (0.505-0.750 microns) by the RBV cameras, discrimination is only possible for spectrally distinct cover types, especially oak woodland. Fluvial morphometry can be readily described using the imagery. Because of the intense dissection of the area, the lowest order streams cannot be consistently mapped, but the rank order of the measured values of properties such as drainage density and link frequency for different lithologies corresponds closely to the actual ranking.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 34
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    Possible future directions in crop yield forecasting (1979)
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    Publication Date: 2019-07-13
    Description: This paper examines present and future possible applications of remote sensing to crop yield forecasting. It is concluded that there are ways in which Landsat data could be used to assist in crop yield forecasting using present technology. A framework for global crop yield forecasting which uses remote sensing, meteorological, field and ancillary data, as available, is proposed for the future.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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    Temporal resolution for crop discrimination estimated using J-M distance (1979)
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    Publication Date: 2019-07-13
    Description: A study is presented which examines techniques utilizing spectral/phenological data to classify and mensurate target crops at predetermined accuracies in order to estimate the temporal resolution requirements for a remote sensing system. An analysis is made of the physical target (crop) characteristics as they vary in time. A model is developed relating the frequency required to attain a particular probability of correct discrimination with N accumulated observations to that required with single observations. Finally, results for a multicrop spectral data set are shown to substantiate the theoretically-modeled results.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 36
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    Quadratic image destriping (1979)
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    Publication Date: 2019-07-13
    Description: An algorithm for removing second-order detector banding effects (striping) from digital imagery is described. This quadratic destriping method is basically an extension of a linear method to one higher degree. It provides a nonlinear alternative between the two-parameter linear correction and a multilinear histogram equalization approach. The application of the proposed technique to GOES visible imagery is discussed, and its effectiveness is compared to existing methods.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 37
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    Remote sensing analysis of water quality in the San Francisco Bay-delta (1979)
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    Publication Date: 2019-07-13
    Description: Water quality parameters in the San Francisco Bay-delta area using remotely sensed data combined with in situ data are investigated. The parameters included suspended solids, chlorophyll, turbidity, and electrical conductivity; the ocean color scanner (OCS) data were acquired from a NASA U-2 aircraft, and water quality samples were obtained from boats. It was concluded that areas with high biological activity were clearly discernible on enhanced imagery from OCS data, and it was impossible to locate such areas on aerial photography taken with conventional or infrared sensitive color films.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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    Autocorrelation in Landsat data (1979)
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    Publication Date: 2019-07-13
    Description: Many computer algorithms for the analysis of Landsat data have a statistical basis which requires that the observations comprise independent samples. Four distinct methods are employed to show that this assumption commonly is not fulfilled for these data. Each leads to a similar conclusion; the data must be sampled no closer than every 10th pixel in order to yield independent estimators. The implications of this are illustrated with a simple example.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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    Forest Classification and Inventory System using Landsat, digital terrain, and ground sample data (1979)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: Accurate timber inventory data for cost-effective forest management is the primary goal of a Forest Classification and Inventory System (FOCIS) designed to provide estimates of timber volume by species aggregated by compartments, townships, or other spatial management units. FOCIS uses Landsat spectral data, including a synthesized texture channel, and Forest Service ground sample data to produce timber volume-homogeneous classes through a two-step unsupervised clustering process. Registered digital terrain data, including derived slope angle and slope aspect channels, are used to predict species proportions through a trend surface model, again using ground sample data for model calibration. In the final stage of FOCIS, volume estimates and predicted species proportions are merged and aggregated to yield timber volumes by species within management areas.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 40
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    Classification results using spacially correlated Landsat data (1979)
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    Publication Date: 2019-07-13
    Description: Tubbs and Coberly (1978) demonstrated that Landsat multispectral scanner data are not independent random observations, but, are in fact highly correlated. They also demonstrated that the correlation structure for the data is similar to that of a stationary autoregressive process of order one. This paper investigates the effect that serially correlated training data have upon both the estimation of parameters and the classification problem. Results are included for both the Bayesian and maximum likelihood classification procedures.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 41
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    Use of Landsat and environmental satellite data in evapotranspiration estimation from a wildland area (1979)
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    Publication Date: 2019-07-13
    Description: A remote sensing-aided procedure was applied to the watershed-wide estimation of water loss to the atmosphere (evapotranspiration, ET). The approach involved a spatially referenced databank based on both remotely sensed and ground-acquired information. Physical models for both estimation of ET and quantification of input parameters are specified, and results of the investigation are outlined.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 42
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    Geometric correction of satellite data using curvilinear features and virtual control points (1979)
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    Publication Date: 2019-07-13
    Description: A simple, yet effective procedure for the geometric correction of partial Landsat scenes is described. The procedure is based on the acquisition of actual and virtual control points from the line printer output of enhanced curvilinear features. The accuracy of this method compares favorably with that of the conventional approach in which an interactive image display system is employed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 43
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    A regression technique for evaluation and quantification for water quality parameters from remote sensing data (1979)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: The paper attempts to define optical physics and/or environmental conditions under which the linear multiple-regression should be applicable. It is reported that investigation of the signal response shows that the exact solution for a number of optical physics conditions is of the same form as a linearized multiple-regression equation, even if nonlinear contributions from surface reflections, atmospheric constituents, or other water pollutants are included. Limitations on achieving this type of solution are defined. Laboratory data are used to demonstrate that the technique is applicable to water mixtures which contain constituents with both linear and nonlinear radiance gradients. Finally, it is concluded that instrument noise, ground-truth placement, and time lapse between remote sensor overpass and water sample operations are serious barriers to successful use of the technique.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 44
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    The correlation and quantification of airborne spectroradiometer data to turbidity measurements at Lake Powell, Utah (1979)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Description: A water sampling program was accomplished at Lake Powell, Utah, during June 1975 for correlation to multispectral data obtained with a 500-channel airborne spectroradiometer. Field measurements were taken of percentage of light transmittance, surface temperature, pH and Secchi disk depth. Percentage of light transmittance was also measured in the laboratory for the water samples. Analyses of electron micrographs and suspended sediment concentration data for four water samples located at Hite Bridge, Mile 168, Mile 150 and Bullfrog Bay indicated differences in the composition and concentration of the particulate matter. Airborne spectroradiometer multispectral data were analyzed for the four sampling locations. The results showed that: (1) as the percentage of light transmittance of the water samples decreased, the reflected radiance increased; and (2) as the suspended sediment concentration (mg/l) increased, the reflected radiance increased in the 1-80 mg/l range. In conclusion, valuable qualitative information was obtained on surface turbidity for the Lake Powell water spectra. Also, the reflected radiance measured at a wavelength of 0.58 micron was directly correlated to the suspended sediment concentration.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 45
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    An evaluation of several different classification schemes - Their parameters and performance (1979)
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    Publication Date: 2019-07-13
    Description: The overall objective of this study was to apply and evaluate several of the currently available classification schemes for crop identification. The approaches examined were: (1) a per point Gaussian maximum likelihood classifier, (2) a per point sum of normal densities classifier, (3) a per point linear classifier, (4) a per point Gaussian maximum likelihood decision tree classifier, and (5) a texture sensitive per field Gaussian maximum likelihood classifier. Three agricultural data sets were used in the study: areas from Fayette County, Illinois, and Pottawattamie and Shelby Counties in Iowa. The segments were located in two distinct regions of the Corn Belt to sample variability in soils, climate, and agricultural practices.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 46
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    Remote sensing as a source of land cover information utilized in the universal soil loss equation (1979)
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    Publication Date: 2019-07-13
    Description: In this study, methods for gathering the land use/land cover information required by the USLE were investigated with medium altitude, multi-date color and color infrared 70-mm positive transparencies using human and computer-based interpretation techniques. Successful results, which compare favorably with traditional field study methods, were obtained within the test site watershed with airphoto data sources and human airphoto interpretation techniques. Computer-based interpretation techniques were not capable of identifying soil conservation practices but were successful to varying degrees in gathering other types of desired land use/land cover information.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 47
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    Small forest cuttings mapped with Landsat digital data (1979)
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    Publication Date: 2019-07-13
    Description: The Cooperative Landsat Applications Research Group used computer classification of Landsat digital data to map forest cuttings (clearcuts) in northern New Hampshire. Cuttings as small as 3 hectares were identified. Several ages or conditions of clearcuts could be distinguished. Progress in two methods of duplicating classification categories from one Landsat pass to another are discussed. One method was used in making maps of areas in 1973, 1975, and 1978.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 48
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    Detection of hydrothermal alteration with 24-channel multispectral scanner data and quantitative analyses of linear features, Monroe geothermal area, Utah (1979)
    In:  Other Sources
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    Publication Date: 2019-07-13
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 49
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    The Landsat-D Assessment System (1979)
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    Publication Date: 2019-07-13
    Description: The overall Landsat-D system is discussed with emphasis on the objectives, configuration, and capabilities of the Landsat-D Assessment System. This system is being developed to support investigations which demonstrate, evaluate, and assess the utility of Landsat-D data for a wide variety of earth observations applications.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 50
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    Surface temperature variations as measured by the Heat Capacity Mapping Mission (1979)
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    Publication Date: 2019-07-13
    Description: The AEM-1 satellite, the Heat Capacity Mapping Mission, has acquired high-quality thermal infrared data at times of day especially suited for studying the earth's surface and the exchange of heat and moisture with the atmosphere. Selected imagery illustrates the considerable variability of surface temperature in and around cities, in the dry southwestern United States, in the Appalachian Mountains, and in agricultural areas. Through simplifying assumptions, an analytic experience is derived that relates day/night temperature differences to the near-surface layer (thermal inertia) and to meteorological factors. Analysis of the result suggests that, in arid regions, estimates of relative thermal inertia may be inferred, whereas, in agricultural areas, a hydrologic interpretation is possible.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 51
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    Determination of range biomass using Landsat (1979)
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    Publication Date: 2019-07-13
    Description: With the successful launch of Landsat-1 a series of rangeland investigations was begun by Texas A & M University. This series has been continuous and has evolved from the initial research phase of examining what Landsat could do into the present stage of evaluating the transfer of information and technology to the agri-business community. The discussion presented here consists of three parts: a brief history of rangeland Landsat work; present research efforts and results; and the present information transfer investigation.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 52
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    The use of spectral data in wheat yield estimation - An assessment of techniques explored in LACIE (1979)
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    Publication Date: 2019-07-13
    Description: The object of the paper is to assess the results of the Large Area Crop Inventory Experiment (LACIE) and closely related research on yield estimation techniques based on remote sensing variables. The exploratory research conducted during LACIE substantiated the hypothesis of yield related information contained in Landsat multispectral scanner data and indicated some of its empirical characteristics. It is noted that leaf area and possibly other foliage features can be derived from spectral data for yield estimation through agrometeorological models and that multiple vegetative and grain related features may be discernable by Landsat derived wheat spectra at different points in the crop development.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 53
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    Signature evaluation of natural targets using high spectral resolution techniques (1979)
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    Publication Date: 2019-07-13
    Description: The concept of 'spectral signature' identification has been applied to LANDSAT and other broad-band multi-spectral scanner data to classify various materials on the earth's surface. A large amount of the spectral information available is invisible, however, to the broad-band sensors. Although the natural targets of interest in remote sensing do not exhibit fine line features such as those associated with gaseous media, there is significant information to be extracted from smoothly varying spectral reflection functions of most natural targets. Subtle variations observed recently in the high resolution 'spectral signatures' of vegetation targets, in particular, promise to open new avenues of application using higher spectral and radiometric resolution techniques. This research was accomplished using a 500-band spectroradiometer system specially adapted to rapid airborne operations
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 54
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    Integration of Landsat, Seasat, and other geo-data sources (1979)
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    Publication Date: 2019-07-13
    Description: The paper discusses integration of Landsat, Seasat, and other geographic information sources. Mosaicking of radar data and registration of radar to Landsat digital imagery are described, and six types of geophysical data, including gravity and magnetic measurements, are integrated and analyzed using image processing techniques.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 55
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    The role of phenology in statistical crop acreage measurement (1979)
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    Publication Date: 2019-07-13
    Description: In order to achieve market acceptance, the accuracy of remote sensing systems needs to be increased from the historically achieved average level of approximately 80-85% to 96-98%, i.e., by a factor of at least three, preferably five. A theory of discrimination is developed based on the fine-grained spectral data from LACIE supersites. It is shown that significant improvements in discrimination accuracy are possible by exploiting the differentials of crop spectra occurring between different phenologic stages. The major effects of such techniques on data system design are examined with respect to recurrence frequency, data volume, and information extraction.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 56
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    Accuracy assessment in the Large Area Crop Inventory Experiment (1979)
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    Publication Date: 2019-07-13
    Description: The Accuracy Assessment System (AAS) of the Large Area Crop Inventory Experiment (LACIE) was responsible for determining the accuracy and reliability of LACIE estimates of wheat production, area, and yield, made at regular intervals throughout the crop season, and for investigating the various LACIE error sources, quantifying these errors, and relating them to their causes. Some results of using the AAS during the three years of LACIE are reviewed. As the program culminated, AAS was able not only to meet the goal of obtaining accurate statistical estimates of sampling and classification accuracy, but also the goal of evaluating component labeling errors. Furthermore, the ground-truth data processing matured from collecting data for one crop (small grains) to collecting, quality-checking, and archiving data for all crops in a LACIE small segment.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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    International Symposium on Remote Sensing of Environment, 13th, Ann Arbor, Mich., April 23-27, 1979, Proceedings. Volumes 1, 2 & 3 (1979)
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    Publication Date: 2019-07-13
    Description: The presentations document current activities in the field of remote sensing. Papers include those concerned with data collection, processing, and analysis hardware and methodology, as well as the application of this technology to monitoring and managing the earth's resources and man's global environment. Ground-based, airborne, and spaceborne sensor systems and both manual and machine-assisted data analysis and interpretation are considered.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: International Symposium on Remote Sensing of Environment; Apr 23, 1979 - Apr 27, 1979; Ann Arbor, MI
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  • 58
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    LANDSAT-2 and LANDSAT-3 flight evaluation report (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10291 , NASA-CR-159999 , DOC-76SDS4227
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    An investigation of vegetation and other earth resource/feature parameters using LANDSAT and other remote sensing data. A: LANDSAT. B: Remote sensing of volcanic emissions (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10158 , NASA-CR-163177
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    Processing techniques development, volume 2. Part 1: Crop inventory techniques (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10114 , NASA-CR-160548 , SR-P9-00411 , LARS-112979
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    The application of remote sensing technology to the solution of problems in the management of resources in Indiana (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10111 , NASA-CR-162853 , LARS-053079
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  • 62
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    Sampling for area estimation: A comparison of full-frame sampling with the sample segment approach (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. Full-frame classifications of wheat and non-wheat for eighty counties in Kansas were repetitively sampled to simulate alternative sampling plans. Evaluation of four sampling schemes involving different numbers of samples and different size sampling units shows that the precision of the wheat estimates increased as the segment size decreased and the number of segments was increased. Although the average bias associated with the various sampling schemes was not significantly different, the maximum absolute bias was directly related to sampling size unit.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10104 , NASA-CR-160479 , REPT-06277 , Machine Process. of Remotely Sensed Data Symp.; Jan 01, 1979
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    A method for classifying multispectral remote sensing data using context (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10089 , NASA-CR-160477 , REPT-062379 , Machine Process of Remotely Sensed Data Symp.; Jan 01, 1979
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  • 64
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    Survey of methods for soil moisture determination (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: Existing and proposed methods for soil moisture determination are discussed. These include: (1) in situ investigations including gravimetric, nuclear, and electromagnetic techniques; (2) remote sensing approaches that use the reflected solar, thermal infrared, and microwave portions of the electromagnetic spectrum; and (3) soil physics models that track the behavior of water in the soil in response to meteorological inputs (precipitation) and demands (evapotranspiration). The capacities of these approaches to satisfy various user needs for soil moisture information vary from application to application, but a conceptual scheme for merging these approaches into integrated systems to provide soil moisture information is proposed that has the potential for meeting various application requirements.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-80658 , Pecora Symp.; Jun 01, 1979; Sioux Falls, SD; United States
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    Heat Capacity Mapping Mission (HCMM) (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10066 , NASA-CR-162587
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    Remote sensing applications to resource problems in South Dakota (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10086 , NASA-CR-162784 , SDSU-RSI-80-02
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    HCMM energy budget data as a model input for assessing regions of high potential groundwater pollution (1979)
    In:  CASI
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    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. Evidence of a heat sink produced by perched water tables was detected with HCMM night thermal data. The region of shallow water was not visible on HCMM visible or day IR imagery. The results are consistant with previous aircraft investigations.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10075 , NASA-CR-162646 , SDSU-RSI-80-01
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    Dryland pasture and crop conditons as seen by HCMM (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10074 , NASA-CR-162645 , PR-3712-7
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  • 69
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    Applications of HCMM satellite data (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10071 , NASA-CR-162642 , QR-9
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  • 70
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    Plant cover, soil temperature, freeze, water stress, and evapotranspiration conditions (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. Procedures to edit cloud-contaminated pixels from those pixels representing Earth surface features were investigated. Because clouds are more reflective than Earth features and are colder than Earth surface features most of the year at 26 N latitude, either a raw digital count ratio or a ratio of reflectance percentage for the VIS band to the temperature works well. For this procedure, the two bands of data need to be registered to the ground scene.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10072 , NASA-CR-162643
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  • 71
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    Forest resource information system (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10065 , NASA-CR-160435 , LARS-093079
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  • 72
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    Correlation of spacecraft passive microwave system data with soil moisture indices (API) (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10063 , NASA-CR-162585 , RSC-3622-2
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  • 73
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    Development of mathematical techniques for the analysis of remote sensing data (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10056 , NASA-CR-160445
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  • 74
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    Satellite monitoring of sea surface pollution (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. Image processing techniques developed are well adapted to the exploration and isolation of local areas which exhibit small temperature differences between themselves and their surroundings. In the worst case of imagery of small areal extent of sea surface having no coastal boundary in the area, there is yet no method of distinguishing unambiguously an oil spill from fog, cloud, the effect produced by shallow sediments, or the effects of naturally occuring thermal fronts. In the case of uniform slicks of liquid North Sea oil in still air, laboratory simulation experiments show that, for oil thicknesses in excess of 1 or 2 mm, there is, under equilibrium conditions, little dependence of oil surface temperature on the thickness of the oil layer. The surface temperature of oil is consistently higher than that of water, the difference being about 1 K at low values of relative humidity, but tending to increase as the relative humidity increases.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10062 , NASA-CR-162584 , PR-2-14/P6 , PR-2
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  • 75
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    Development of Landsat-based Technology for Crop Inventories: Appendices (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10055 , NASA-CR-160422 , ERIM-132400-29-2F , SR-E9-00404
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  • 76
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    Development of LANDSAT-based technology for crop inventories (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10054 , NASA-CR-160421 , ERIM-132400-29-1F , SR-E9-00404
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  • 77
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    NCSL remote sensing project (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10053 , NASA-CR-162523
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  • 78
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    Geologic application of thermal-inertia mapping from satellite (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10050 , NASA-CR-162522
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  • 79
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    Digital processing of LANDSAT MSS and topographic data to improve capabilities for computerized mapping of forest cover types (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10041 , NASA-CR-160379 , LARS-TR-011579
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  • 80
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    Relationship of physiography and snow area to stream discharge (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. A comparison of snowmelt runoff models shows that the accuracy of the Tangborn model and regression models is greater if the test data falls within the range of calibration than if the test data lies outside the range of calibration data. The regression models are significantly more accurate for forecasts of 60 days or more than for shorter prediction periods. The Tangborn model is more accurate for forecasts of 90 days or more than for shorter prediction periods. The Martinec model is more accurate for forecasts of one or two days than for periods of 3,5,10, or 15 days. Accuracy of the long-term models seems to be independent of forecast data. The sufficiency of the calibration data base is a function not only of the number of years of record but also of the accuracy with which the calibration years represent the total population of data years. Twelve years appears to be a sufficient length of record for each of the models considered, as long as the twelve years are representative of the population.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10046 , NASA-CR-162506
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  • 81
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    Heat Capacity Mapping Mission (HCMM) (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10039 , NASA-CR-162450
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  • 82
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    Analysis of scanner data for crop inventories (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10040 , NASA-CR-160362 , ERIM-132400-28-P
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  • 83
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    Geologic application of thermal inertia imaging using HCMM data (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10035 , NASA-CR-162446
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  • 84
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    Geological and geothermal data use investigations for application explorer mission-A, heat capacity mapping mission (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10033 , NASA-CR-162444
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  • 85
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    Proceedings of Technical Sessions, Volumes 1 and 2: the LACIE Symposium (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The technical design of the Large Area Crop Inventory Experiment is examined and data acquired over 3 global crop years is analyzed with respect to (1) sampling and aggregation; (2) growth size estimation; (3) classification and mensuration; (4) yield estimation; and (5) accuracy assessment. Seventy-nine papers delivered at conference sessions cover system implementation and operation; data processing systems; experiment results and accuracy; supporting research and technology; and the USDA application test system.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E80-10030 , NASA-TM-80811 , JSC-16015-VOL-1 , JSC-16015-VOL-2 , JSC-CN-29379 , The LACIE Symposium; Oct 23, 1978 - Oct 26, 1978; Houston, TX; United States
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  • 86
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    CCEA second-generation wheat yield model for hard red wheat in North Dakota (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The problem of estimating wheat yields for years with unusual planting dates and/or unusual phenological development is investigated. A yield model developed for hard red spring wheat in North Dakota using historical yields for crop reporting districts in conjunction with meteorological predictor variables based on weekly data is assessed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Crop Modeling Workshop; Oct 03, 1977 - Oct 05, 1977; Columbia, MO; United States|NASA. Johnson Space Center Proc. of Tech. Sessions, Vol. 1 and 2; p 971-979
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  • 87
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    Plant cover, soil temperature, freeze, water stress, and evapotranspiration conditions (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10173 , NASA-CR-158170
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  • 88
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    Experimental and theoretical tests of a modified suits model (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-idenified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10169 , NASA-CR-158165
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  • 89
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    An investigation of volcanic gases and dust (aerosols) in the stratosphere (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10159 , NASA-CR-158152
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  • 90
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    Investigation of the application of HCMM thermal data to snow hydrology (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10213 , NASA-CR-158685 , QPR-7
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  • 91
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    Seventh year projects and activities of the Environmental Remote Sensing Applications Laboratory (ERSAL) (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10220 , NASA-CR-158687
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  • 92
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    HCMM Heat Capacity Mapping Mission (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10214 , NASA-CR-158686
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  • 93
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    Evaluation of SLAR and thematic mapper MSS data for forest cover mapping using computer-aided analysis techniques (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: A literature review on radar and spectral band information was conducted and a NC-130 mission was flown carrying the NS001 scanner system which basically corresponds to the channel configuration of the proposed thematic mapper. Aerial photography and other reference data were obtained for the study site, an area approximately 290 sq miles in north central South Carolina. A cover type map was prepared and methods were devised for reformatting and geometrically correcting MSS CRT data. Arrangements were made to obtain LANDSAT data for dates approximating the NC-130 mission. Because of the waveband employed to obtain SEASAT radar data, it was decided to determine if X-band (2.40 cm to 3.75 cm wavelength) imagery is available.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10144 , NASA-CR-167787 , NAS 1.26:167787 , LARS-CR-083179
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  • 94
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    Development of a tree classifier for discrimination of surface mine activity from Landsat digital data (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: In a cooperative project with the Geological Survey of Alabama, the Mississippi State Remote Sensing Applications Program has developed a single purpose, decision-tree classifier using band-ratioing techniques to discriminate various stages of surface mining activity. The tree classifier has four levels and employs only two channels in classification at each level. An accurate computation of the amount of disturbed land resulting from the mining activity can be made as a product of the classification output. The utilization of Landsat data provides a cost-efficient, rapid, and accurate means of monitoring surface mining activities.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: ASP 79-208 , American Society of Photogrammetry, Annual Meeting; Mar 18, 1979 - Mar 24, 1979; Washington, DC
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  • 95
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    A methodology for dam inventory and inspection with remotely sensed data (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A methodology is presented to increase the efficiency and accuracy of dam inspection by incorporating remote sensing techniques into field-based monitoring programs. The methodology focuses on New York State and places emphasis on readily available remotely sensed data aerial photographs and Landsat data. Aerial photographs are employed in establishing a state-wide data base, referenced on county highway and U.S. Geological Survey 1:24,000 scale, topographic maps. Data base updates are conducted by county or region, using aerial photographs or Landsat as a primary source of information. Field investigations are generally limited to high-hazard or special problem dams, or to dams which cannot be assessed adequately with aerial photographs. Although emphasis is placed on available data, parameters for acquiring new aircraft data for assessing dam condition are outlined. Large scale (1:10,000) vertical, stereoscopic, color-infrared photography, flown during the spring or fall, is recommended.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: ASP 79-106 , American Society of Photogrammetry, Annual Meeting; Mar 18, 1979 - Mar 24, 1979; Washington, DC
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  • 96
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    Evaluation of SLAR and thematic mapper MSS data for forest cover mapping using computer-aided analysis techniques (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The spatial characteristics of the data were evaluated. A program was developed to reduce the spatial distortions resulting from variable viewing distance, and geometrically adjusted data sets were generated. The potential need for some level of radiometric adjustment was evidenced by an along track band of high reflectance across different cover types in the Varian imagery. A multiple regression analysis was employed to explore the viewing angle effect on measured reflectance. Areas in the data set which appeared to have no across track stratification of cover type were identified. A program was developed which computed the average reflectance by column for each channel, over all of the scan lines in the designated areas. A regression analysis was then run using the first, second, and third degree polynomials, for each channel. An atmospheric effect as a component of the viewing angle source of variance is discussed. Cover type maps were completed and training and test field selection was initiated.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10145 , NASA-CR-167788 , NAS 1.26:167788 , LARS-CR-120379
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  • 97
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    Geologic application of thermal inertia imaging using HCMM data (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. The day infrared and visible HCMM satellite data for Death Valley taken on 31 May 1978 were compared with aircraft data of the same area taken in March of the same year. In the visible image, it is possible to note the drying of the valley floor during the two month period between acquisition of the two data sets. On the IR image however, the valley floor remains cool, probably indicating that while the standing water has disappeared, the floor is still moist.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10160 , NASA-CR-157446 , HCM-028
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  • 98
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    Large Area Crop Inventory Experiment (LACIE). Development of procedure M for multicrop inventory, with tests of a spring-wheat configuration (1979)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The author has identified the following significant results. An outgrowth of research and development activities in support of LACIE was a multicrop area estimation procedure, Procedure M. This procedure was a flexible, modular system that could be operated within the LACIE framework. Its distinctive features were refined preprocessing (including spatially varying correction for atmospheric haze), definition of field like spatial features for labeling, spectral stratification, and unbiased selection of samples to label and crop area estimation without conventional maximum likelihood classification.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E79-10197 , NASA-CR-160140 , ERIM-132400-16-F
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  • 99
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    Measure of Arctic Sea ice characteristics using microwave scatterometry (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Results from a radar scatterometer used in the NASA microwave remote sensing experiment off the Alaska north shore are presented. The experiment was performed to determine whether various radars could be used from aircraft to provide definitive measurement of ice parameters such as pressure ridge height and direction, ice age, and ice type. With the aircraft at 300 m altitude, the 13.9 GHz scatterometer measured the normalized radar cross section of the ice using a pencil beam horizontally polarized antenna which pointed at either nadir or 50 deg incidence angle. Simultaneous laser altimeter and stereo photography measurements are presented as the 'surface truth' for comparison with the radar measurements. The results demonstrate that the scatterometer backscattered power is modulated by ice features and that a correlation exists between the radar cross section and the 'surface truth' derived from these ancillary instruments.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: SOUTHEASTCON ''79; Region 3 Conference and Exhibit; Apr 01, 1979 - Apr 04, 1979; Roanoke, VA
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  • 100
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    Assessing urbanized area expansion through the integration of Landsat and conventional data /79052/ (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: An image base information system (IBIS) is utilized to integrate Landsat and census data for the purpose of mapping urban land and updating urbanized-area outer lines. IBIS is a subset of the video image communication and retrieval digital image processing system developed at JPL. IBIS is used to analyze three urban areas: Orlando, Florida; Seattle, Washington; and Boston, Massachusetts. In all three applications the primary objective is to map the expansion of urban land cover in the urban fringe. Pertinent tabular reports are produced.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: ASP 79-230 , American Society of Photogrammetry, Annual Meeting; Mar 18, 1979 - Mar 24, 1979; Washington, DC
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