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  • EARTH RESOURCES AND REMOTE SENSING  (745)
  • 2010-2014
  • 1980-1984  (745)
  • 1925-1929
  • 1982  (745)
Collection
Years
  • 2010-2014
  • 1980-1984  (745)
  • 1925-1929
Year
  • 1
    Publication Date: 2019-01-25
    Description: Hydrology moels are reviewed in order to provide information for evaluating the use of remote sensing capabilities. Strategies for using remotely sensed data in hydrology moels are also discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E84-10082 , NASA-CR-173232 , CP-G204249 , NAS 1.26:173232
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  • 2
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    In:  Other Sources
    Publication Date: 2019-01-25
    Description: The merits, shortcomings, and future outlook of thermal IR remote sensing are appraised from a philosophical and speculative point of view in the light of the HCMM experiments. Two key questions stemming from HCMM addressed are: thermal remote sensing from space platforms now on a solid foundation in terms of demonstrated applications of real utility as well as theory, and where should NASA's research be focused in thermal remote sensing and are the potential applications sufficient to justify inclusion of thermal sensors in later generations of Earth resources satellites.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: The Heat Capacity Mapping Mission (HCMM) Anthology; p 237-244
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  • 3
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    In:  Other Sources
    Publication Date: 2019-01-25
    Description: A gallery of what might be called the ""Best of HCMM'' imagery is presented. These 100 images, consisting mainly of Day-VIS, Day-IR, and Night-IR scenes plus a few thermal inertia images, were selected from the collection accrued in the Missions Utilization Office (Code 902) at the Goddard Space Flight Center. They were selected because of both their pictorial quality and their information or interest content. Nearly all the images are the computer processed and contrast stretched products routinely produced by the image processing facility at GSFC. Several LANDSAT images, special HCMM images made by HCMM investigators, and maps round out the input.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: The Heat Capacity Mapping Mission (HCMM) Anthology; p 63-168
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  • 4
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    In:  Other Sources
    Publication Date: 2019-01-25
    Description: The remote sensing of temperature is performed by sensing radiation emitted from solids, liquids, and gases in the thermal infrared region of the spectrum, in which thermal emission is dominant over reflected solar energy. For Earth resources applications, thermal sensing of solids and liquids is performed in two ""windows'' of the atmosphere where atmospheric absorption and emission are at a minimum. Temperature measurement, intrinsic thermal properties, factors in interpreting thermal data, the use of thermal inertia, and the measurements obtained by the heat capacity mapping radiometer are discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: The Heat Capacity Mapping Mission (HCMM) Anthology; p 7-14
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  • 5
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    In:  CASI
    Publication Date: 2013-08-31
    Description: The various systems of the Thematic Mapper are reviewed and a comparison of measured and specified performance is given. Test methodologies are described. The specific instrument systems discussed include the power supply assembly, scan mirror, electronics module, focal plane assembly, radiometer, and radiation cooler.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-174232 , NAS 1.26:174232 , E85-10060
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  • 6
    Publication Date: 2013-08-31
    Description: The interception of photosynthetically active radiation (PAR) was evaluated relative to greenness and normalized difference (MSS 7-5/7+5) for five planting dates of wheat for 1978-79 and 1979-80 in Phoenix. Intercepted PAR was calculated from a model driven by leaf area index and stage of growth. Linear relationships were found between greenness and normalized difference with a separate model representing growth and senescence of the crop. Normalized difference was a significantly better model and would be easier to apply than the empirically derived greenness parameter. For the leaf area growth portion of the season the model between PAR interception and normalized difference was the same over years, however, for the leaf senescence the models showed more variability due to the lack of data on measured interception in sparse canopies. Normalized difference could be used to estimate PAR interception directly for crop growth models.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-171758 , CONTRIB-82-559-J , SR-M2-04342 , NAS 1.26:171758 , E84-10109
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  • 7
    Publication Date: 2013-08-31
    Description: An initial analysis of LANDSAT 4 thematic mapper (TM) data for the delineation and classification of agricultural, forested wetland, and urban land covers was conducted. A study area in Poinsett County, Arkansas was used to evaluate a classification of agricultural lands derived from multitemporal LANDSAT multispectral scanner (MSS) data in comparison with a classification of TM data for the same area. Data over Reelfoot Lake in northwestern Tennessee were utilized to evaluate the TM for delineating forested wetland species. A classification of the study area was assessed for accuracy in discriminating five forested wetland categories. Finally, the TM data were used to identify urban features within a small city. A computer generated classification of Union City, Tennessee was analyzed for accuracy in delineating urban land covers. An evaluation of digitally enhanced TM data using principal components analysis to facilitate photointerpretation of urban features was also performed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-85499 , NAS 1.15:85499 , NSTL/ERL-215 , E84-10073
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  • 8
    Publication Date: 2013-08-31
    Description: An overview of the LANDSAT system is provided along with information to assist prospective users in establishing whether imagery for their areas of interest is available and how to obtain such imagery. Spectral bands, spatial resolution, and digital data are explained as well as worldwide reference system indexing and the identification number assigned to images. The sizes and scales of standard black and white imagery and of false color composite imagery are listed. The format is given for computer compatible tapes and standard enhanced imagery is described. Other information available to users include LANDSAT index maps, catalogs of available imagery, a schedule of overpass dates, and a list of product prices.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:172881 , E83-10354 , NASA-CR-172881
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  • 9
    Publication Date: 2013-08-31
    Description: The water use and solar energy conversion efficiencies of two cultivars of winter wheat (Triticum aestivum L., vars, Centurk and Newton) planted at three densities, were examined during a growing season. Water use, based on soil moisture depletion, was the lowest under the light, and the highest under the heavy planting densities of both cultivars. Water use efficiency of medium and heavy planting densities were greater than the light planting densities in both cultivars. The canopy radiation extinction coefficients of both cultivars increased with increases in planting density. Efficiency of operation interception of photosynthetically active radiation by both cultivars improved from the time of jointing until anthesis, and then decreased during senescence. The efficiency of the conversion of intercepted radiation to dry matter (biochemical efficiency) decreased throughout the growing season both cultivars. The interception, biochemical, and photosynthetic efficiencies improved as planting density increased.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10329 , NAS 1.26:171659 , SR-M2-04343 , CONTRIB-82-555-J , NASA-CR-171659
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  • 10
    Publication Date: 2013-08-31
    Description: Under AgRISTARS management, ground data were collected at 20 agricultural sites within Australia during the crop year 1981-82. The data collection activity is summarized. Specifically, the following information is provided: discussion of data procedures, methods, and products; crop production results; photographs of the Australia agriculture scene, map sheets of segments, LANDSAT full frames, and aerial photographs of data collection areas; and summarizations of district agronomist reports.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:171632 , IT-L2-04381-VOL-1 , E83-10317 , JSC-18584-VOL-1 , NASA-CR-171632 , LEMSCO-18650-VOL-1
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  • 11
    Publication Date: 2013-08-31
    Description: Tests to verify the as-designed performance of all circuits within the thematic mapper electronics module unit are described. Specifically, the tests involved the evaluation of the scan line corrector driver, shutter drivers function, cal lamp controller function, post amplifier function, command decoder verification unit, and the temperature and actuator controllers function.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10269 , NAS 1.26:170535 , HS-236-0019-1679-VOL-4-PT-E , NASA-CR-170535 , HAC-REF-D4596-VOL-4-PT-E
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  • 12
    Publication Date: 2013-08-31
    Description: Final performance test data for the thematic mapper flight model multiplexer are presented in tables. Aspects covered include A/D thresholds for bands 5, 6, and 7; cross talk; the thermistor; bilevel commands signal parameters; A/D threshold ambient, voltage margin low bus; serial data and bit clock parameters; and the wire check. Tests were conducted at ambient temperature.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: HS-236-0019-1679-VOL-4A-BK-2 , HAC-REF-D4596-VOL-4-PT-A-BK-2 , NAS 1.26:170531 , NASA-CR-170531 , E83-10265
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  • 13
    Publication Date: 2013-08-31
    Description: Functional and design data from various thematic mapper subsystems are presented. Coarse focus, modulation transfer function, and shim requirements are addressed along with spectral matching and spatial coverage tests.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-170537 , HS-236-0019-1679-VOL-4-PT-G , HAC-REF-D4596-VOL-4-PT-G , NAS 1.26:170537 , E83-10271
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  • 14
    Publication Date: 2013-08-31
    Description: Performance data for the thematic mapper radiative cooler are presented. Results from workmanship vibration tests and thermal vacuum test are described and an assembly history record is given.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10270 , HS-236-0019-1679-VOL-4-PT-F , NAS 1.26:170536 , NASA-CR-170536 , HAC-REF-D4596-VOL-4-PT-F
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  • 15
    Publication Date: 2013-08-31
    Description: The acceptance test data package for the thematic mapper flight model power supply was reviewed and the data compared to the relevant specification. The power supply was found to be within specification. Final test data for outut voltage regulation and ripple, efficiency, over and undervoltage protection, telemetry, impedances, turn-on requirements, and input current limits are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: HS-236-0019-1679-VOL-4-PT-C , NAS 1.26:170533 , NASA-CR-170533 , HAC-REF-D4596-VOL-4-PT-C , E83-10267
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  • 16
    Publication Date: 2013-08-31
    Description: Failure reports for flight model-1 of the thematic mapper are summarized showing the symptom and cause of failure as well as the corrective action taken. Each report is keyed to the major subsystem against which the failure occurred. Requests for deviation/waiver are listed by number, description, and current status. Copies of engineering proposals are included.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:170529 , HAC-REF-D4596-VOL-3-PT-C , HS-236-0019-1679-VOL-3-PT-C , NASA-CR-170529 , E83-10263
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  • 17
    Publication Date: 2013-08-31
    Description: The NASA GSFC LANDSAT-D Ground Segment (GS) is developing an Accelerated Payload Correction Subsystem (APCS) to provide Thematic Mapper (TM) image correction data to be used outside the GS. This correction data is computed from a subset of the TM Payload Correction Data (PCD), which is downlinked from the spacecraft in a 32 Kbps data stream, and mirror scan correction data (MSCD), which is extracted from the wideband video data. This correction data is generated in the GS Thematic Mapper Mission Management Facility (MMF-T), and is recorded on a 9-track 1600 bit per inch computer compatible tape (CCT). This CCT is known as a APCS Output CCT (AOT). The AOT follows standardized corrections with respect to data formats, record construction and record identification. Applicable documents are delineated; common conventions which are used in further defining the structure, format and content of the AOT are defined; and the structure and content of the AOT are described.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-170085 , PIR-U-1T80-LSD-MMF-124-REV-A , E83-10234 , NAS 1.26:170085
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  • 18
    Publication Date: 2013-08-31
    Description: Unlike previous LANDSAT computer compatible tape (CCT) formats, the standard format of CCT's now includes a comprehensive field location and data description information superstructure composed of four records. The volume descriptor record, the text record, and the file pointer record reside in a volume directory file, which generally describes the data configuration and provides pointers to each data file. The file descriptor record for each data file describes the data structure within the file and provides pointers to certain fields within the file. These superstructure records primarily supply information about the data on the CCT as opposed to carrying the data themselves. The EROS Data Center's LANDSAT CCT version 1.0 product is presented which conforms to the concepts of the standard format as much as is possible with existing EDC systems.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-170082 , E83-10227 , NAS 1.26:170082
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  • 19
    Publication Date: 2013-08-31
    Description: Tasks remaining to be completed are summarized for the following major project elements: (1) evaluation of crop yield models; (2) crop yield model research and development; (3) data acquisition processing, and storage; (4) related yield research: defining spectral and/or remote sensing data requirements; developing input for driving and testing crop growth/yield models; real time testing of wheat plant process models) and (5) project management and support.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: JSC-18564 , YM-U2-C0655 , E83-10219 , NASA-TM-85262 , NAS 1.15:85262
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  • 20
    Publication Date: 2013-08-31
    Description: One of the outputs of the data management system being developed to provide a variety of standard image products from the thematic mapper and the multispectral band scanners on LANDSAT 4, is the partially processed TM data (radiometric corrections applied and geometric correction matrices for two projections appended) which is recorded on a 28-track high density tape. Specifications are presented for the format of the recorded data as well as for the time code and the major and minor frames of the tape. Major frame types, formats, and field definitions are included.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:170087 , GES-10033-VOL-6-APP-A-REV-B , NASA-CR-170087 , E83-10236
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  • 21
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    In:  CASI
    Publication Date: 2013-08-31
    Description: Results of a limited comparison of HCMM sea surface temperature data with in situ data suggest that the HCMM data can provide a rather accurate representation of the sea surface temperature and temperature pattern. In the Nantucket Shoals region, the HCMM analysis provided data on the surface heating and on transport south of Nantucket Island and Nantucket Sound. The analyses also revealed the sea surface temperature structure of an anticyclonic warm ring.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10221 , NASA-CR-170079 , NAS 1.26:170079
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  • 22
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    In:  CASI
    Publication Date: 2013-08-31
    Description: LANDSAT-4 (formerly LANDSAT-D) was launched successfully at 1:59 p.m. EDT on July 16, 1982, from Vandenberg Air Force Base. The Delta 3920 launch vehicle performed flawlessly and placed the satellite into the planned three sigma low orbit of 694 km. The lower orbit was selected to eliminate a retrograde maneuver for the orbit adjust burns necessary to place the satellite into its planned operational 16-day repeat track at 705 km. Spacecraft separation and the initiation of solar array depolyment occurred, over the Indian Ocean tracking station. Spacecraft attitude rates at separation were low, allowing the Earth sensor to immediately acquire the Earth with the momentum wheels and without use of the propulsion system. All systems activated as of noon on July 18, 1982, are performing well with no significant discrepancies reported.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-85218 , NAS 1.15:85218 , E83-10185 , E-668-82-01
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  • 23
    Publication Date: 2013-08-31
    Description: The telecommunications availability that can realistically be provided by the tracking and data relay satellite system (TDRSS) for LANDSAT D type missions. Although the assessment focusses on the telecommunications requirements of the near Earth orbit missions of the 1985 - 1989 time frame, it emphasizes LANDSAT D and its competing demand for wideband, real-time RF link services from TDRSS. Limitations in availability of communications services are identified, including systematic TDRSS restrictions, conflicting telecommunication requirements and loading problems of all users (missions) which are to be supported by TDRSS. Several telecommunications alternatives for LANDSAT D utilization independent of TDRSS services are discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-169777 , E83-10167 , NAS 1.26:169777 , OAO/TR-82/0027
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  • 24
    Publication Date: 2013-08-31
    Description: Nimbus 7 Scanning Multichannel Microwave Radiometer (SMMR) brightness temperature measurements over the global oceans have been examined with the help of statistical and empirical techniques. Such analyses show that zonal averages of brightness temperature measured by SMMR, over the oceans, on a large scale are primarily influenced by the water vapor in the atmosphere. Liquid water in the clouds and rain, which has a much smaller spatial and temporal scale, contributes substantially to the variability of the SMMR measurements within the latitudinal zones. The surface wind not only increases the surface emissivity but through its interactions with the atmosphere produces correlations, in the SMMR brightness temperature data, that have significant meteorological implications. It is found that a simple meteorological model can explain the general characteristics of the SMMR data. With the help of this model methods to infer over the global oceans, the surface temperature, liquid water content in the atmosphere, and surface wind speed are developed. Monthly mean estimates of the sea surface temperature and surface winds are compared with the ship measurements. Estimates of liquid water content in the atmosphere are consistent with earlier satellite measurements.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.15:84927 , NASA-TM-84927
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  • 25
    Publication Date: 2013-08-31
    Description: Aspen, conifer and mixed aspen/conifer forests were mapped for a 15-quadrangle study area in the Utah-Idaho Bear River Range using LANDSAT multispectral scanner data. Digital classification and statistical analysis of LANDSAT data allowed the identification of six groups of signatures which reflect different types of aspen/conifer forest mixing. Photo interpretations of the print symbols suggest that such classes are indicative of mid to late seral aspen forests. Digital print map overlays and acreage calculations were prepared for the study area quadrangles. Further field verification is needed to acquire additional information about the nature of the forests. Single date LANDSAT analysis should be a cost effective means to index aspen forests which are at least in the mid seral phase of conifer invasion. Since aspen canopies tend to obscure understory conifers for early seral forests, a second date analysis, using data taken when aspens are leafless, could provide information about early seral aspen forests.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: CRSC-82-4 , E83-10106 , NAS 1.26:169680 , NASA-CR-169680
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  • 26
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    Publication Date: 2013-08-31
    Description: The first version of the MAGSAT selection and reduction software was completed as well as a major enhancement to support geomagnetic vector data selection and reduction. All MAGSAT data over an area between 90 E and 180 E and between 0 and 50 S were reduced. This area includes the Australasian region and surrounding oceans. Nearly 200 profiles across Australia satisfied the criteria for data. The reduced geomagnetic field inferred to be caused by sources within the lithosphere was interpreted. During reduction, magnetic effects caused by all other causes were eliminated. Some possible correlation with major tectonic structures and known continental scale heat flow anomalies were noted.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:169599 , E83-10089 , NASA-CR-169599
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  • 27
    Publication Date: 2013-08-31
    Description: The scanning multichannel microwave radiometer (SMMR) aboard the SEASAT satellite measured emitted radiation in both horizontal and vertical polarizations at microwave frequencies of 6.6, 10.69, 18.0, 21.0 and 37.0 GHz. Retrieval algorithms, for sea surface temperature (SST) determination, from subsets of one to three SMMR channels are obtained by a two step statistical technique. The technique first selects the best subsets of a given size defined by an R2 criterion (coefficient of determination), of a given size by the application of an efficient 'leaps and bounds' technique on a statistical data base. It then performs a regression analysis on the selected subsets. The statistical data base employed a large (600) set of seasonally and geographically diverse atmospheric and surface parameters for radiative transfer calculations. The results of the study of one to three channel subset retrieval algorithms indicate the possibility of using 6.6V, 6.6H and 18V channels for SST determination from SEASAT-SMMR data.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:169660 , NASA-CR-169660 , JPL-PUB-82-89
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  • 28
    Publication Date: 2013-08-31
    Description: Results are presented for (1) spring small grains; (2) summer crops/corn and soybeans; and (3) crop signature characterization. The development of an early season approach, profile and segment based change estimation, and future satellite and sensor system requirements are discussed. Documentation for the inventory technology development project is included.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: JSC-17830 , NAS 1.15:84878 , E83-10006 , IT-J2-04267 , NASA-TM-84878
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  • 29
    Publication Date: 2013-08-31
    Description: Research activities in support of AgRISTARS Inventory Technology Development Project in the use of aerospace remote sensing for agricultural inventory described include: (1) corn and soybean crop spectral temporal signature characterization; (2) efficient area estimation techniques development; and (3) advanced satellite and sensor system definition. Studies include a statistical evaluation of the impact of cultural and environmental factors on crop spectral profiles, the development and evaluation of an automatic crop area estimation procedure, and the joint use of SEASAT-SAR and LANDSAT MSS for crop inventory.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-167702 , E83-10017 , ERIM-160300-18-P , NAS 1.26:167702 , IT-E2-04311
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  • 30
    Publication Date: 2013-08-31
    Description: Microwave radiometric measurements over bare fields of different surface roughnesses were made at the frequencies of 1.4 GHz, 5 GHz, and 10.7 GHz to study the frequency dependence as well as the possible time variation of surface roughness. The presence of surface roughness was found to increase the brightness temperature of soils and reduce the slope of regression between brightness temperature and soil moisture content. The frequency dependence of the surface roughness effect was relatively weak when compared with that of the vegetation effect. Radiometric time series observation over a given field indicated that field surface roughness might gradually diminish with time, especially after a rainfall or irrigation. This time variation of surface roughness served to enhance the uncertainty in remote soil moisture estimate by microwave radiometry. Three years of radiometric measurements over a test site revealed a possible inconsistency in the soil bulk density determination, which turned out to be an important factor in the interpretation of radiometric data.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: SM-G2-04285 , NASA-TM-83937 , NAS 1.15:83937 , E84-10019
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  • 31
    Publication Date: 2013-08-31
    Description: End user concerns about the content and accessibility of libraries of remote sensing data in general are addressed. Recommendations pertaining to the United States' satellite remote sensing programs urge: (1) the continuation of the NASA/EROS Data Center program to convert pre-1979 scenes to computer readable tapes and create a historical archive of this valuable data; (2) improving the EROS archive by adding geologically interesting scenes, data from other agencies (including previously classified data), and by adopting a policy to retire data from the archive; (3) establishing a computer data base inquiry system that includes remote sensing data from all publically available sources; (4) capability for prepurchase review and evaluation; (5) a flexible price structure; and (6) adoption of standard digital data products format. Information about LANDSAT 4, the status of worldwide LANDSAT receiving stations, future non-U.S. remote sensing satellites, a list of sources for LANDSAT data, and the results of a survey of GEOSAT members' remote sensing data processing systems are also considered.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:173005 , E83-10411 , NASA-CR-173005
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  • 32
    Publication Date: 2013-08-31
    Description: The estimation of mixing proportions P sub 1, P sub 2,...P sub m in the mixture density f(x) = the sum of the series P sub i F sub i(X) with i = 1 to M is often encountered in agricultural remote sensing problems in which case the p sub i's usually represent crop proportions. In these remote sensing applications, component densities f sub i(x) have typically been assumed to be normally distributed, and parameter estimation has been accomplished using maximum likelihood (ML) techniques. Minimum distance (MD) estimation is examined as an alternative to ML where, in this investigation, both procedures are based upon normal components. Results indicate that ML techniques are superior to MD when component distributions actually are normal, while MD estimation provides better estimates than ML under symmetric departures from normality. When component distributions are not symmetric, however, it is seen that neither of these normal based techniques provides satisfactory results.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: SR-62-04376 , E83-10402 , NASA-CR-171678 , NAS 1.26:171678
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  • 33
    Publication Date: 2013-08-31
    Description: Construction of a model of the regional magnetic field and investigation of the local magnetic anomalies and their origin were approaches used in attempts to study the crustal structure near Japan and its Antarctic bases. Spatial properties of the regional magnetic field and comparison of the regional model with that derived from MAGSAT data are discussed. Possible causes of the magnetic anomalies, and results of aeromagnetic surveys incorporating gravity and seismic data are explored. Ionospheric and magnetospheric contributions to geomagnetic variations, field-aligned currents, magnetic geomagnetic pulsations, and hydromagnetic waves by analysis of MAGSAT data are also examined.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:172908 , NASA-CR-172908 , E83-10366
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  • 34
    Publication Date: 2013-08-31
    Description: Practical techniques were developed and evaluated for deriving geobotanical information from LANDSAT MSS data acquired for a test site in the Sam Houston National Forest near Cleveland, Texas where gravel deposits exist in sufficient quantity that economical extraction would be feasible. A correlation was shown between a single spectral class and the presence of ironstone gravel. Field data indicates that this class relates to upland pine which was probably under stress as the result of a prolonged drought which was in progress at the time of data acquisition. It is suggested that the subsurface gravel produces a soil which has less field capacity for water retention, causing early appearance of water stress in the surface vegetation over these soils. In all areas within the QMC formation where this class occurred, gravel was located when borings were made.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10361 , NASA-TM-85391 , NSTL/ERL-199 , NAS 1.15:85391
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  • 35
    Publication Date: 2013-08-31
    Description: Both LANDSAT imagery and the video information communications and retrieval software were used to develop a land cover classifiction of the Puget Sound of Washington. Planning agencies within the region were provided with a highly accurate land cover map registered to the 1980 census tracts which could subsequently be incorporated as one data layer in a multi-layer data base. Many historical activities related to previous land cover mapping studies conducted in the Puget Sound region are summarized. Valuable insight into conducting a project with a large community of users and in establishing user confidence in a multi-purpose land cover map derived from LANDSAT is provided.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:166492 , E83-10360 , NASA-CR-166492
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  • 36
    Publication Date: 2013-08-31
    Description: Appendices containing computerized field data, code and term definitions, and photographs are presented.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: JSC-18584-VOL-2 , NAS 1.26:171631 , E83-10316 , LEMSCO-18650-VOL-231 , IT-L2-04381-VOL-2 , NASA-CR-171631
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  • 37
    Publication Date: 2013-08-31
    Description: Telemetry calibration curves for the LANDSAT-4 subsystems are defined by nth order polynomial equations which convert telemetry counts to engineering units. The calibration curve coefficients for each telemetry point are controlled in the data base and are listed along with the unit section number where the sensor is located. Tables showing the coefficients may be obtained from the data base administrator. The tables show telemetry counts versus engineering units.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:170521 , SVS-10266/3A , E83-10287 , NASA-CR-170521
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  • 38
    Publication Date: 2013-08-31
    Description: Data from the thematic mapper scan mirror assembly (SMA) acceptance test are presented. Documentation includes: (1) a list of the acceptance test discrepancies; (2) flight 1 SMA test data book; (3) flight 1 SMA environmental report; (4) the configuration verification index; (5) the flight 1 SMA test failure reports; (6) the flight 1 data tapes log; and (7) the requests for deviation/waivers.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:170532 , HS-236-0019-1679-VOL-4-PT-B , HAC-REF-D4596-VOL-4-PT-B , NASA-CR-170532 , E83-10266
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  • 39
    Publication Date: 2013-08-31
    Description: Procedures and results are presented for performance and systems integration tests of flight model-1 thematic mapper. Aspects considered cover electronic module integration, radiometric calibration, spectral matching, spatial coverage, radiometric calibration of the calibrator, coherent noise, dynamic square wave response, band to band registration, geometric accuracy, and self induced vibration. Thermal vacuum tests, EMI/EMS, and mass properties are included. Liens are summarized.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10262 , HAC-REF-D4596-VOL-3-PT-B , NAS 1.26:170528 , HS-236-1679-VOL-3-PT-B , NASA-CR-170528
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  • 40
    Publication Date: 2013-08-31
    Description: Performance and acceptance data are presented for the multiplexer, scan mirror, power supply, mainframe/top mechanical and the aft optics, assemblies. Other major subsystems evaluated include the relay optics, the electronic module, the radiative cooler, and the cable harness. Reference lists of nonconforming materials reports, failure reports, and requests for deviation/waiver are also given.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10258 , NAS 1.26:170523 , HAC-REF-D4596-VOL-2-PT-A , HS-236-0019-1679-VOL-2-PT-A , NASA-CR-170523
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  • 41
    Publication Date: 2013-08-31
    Description: The indirect effects on the geoid computation due to the second method of Helmert's condensation were studied. when Helmert's anomalies are used in Stokes's equation, there are three types of corrections to the free air geoid. The first correction, the indirect effect on geoid undulation due to the potential change in Helmert's reduction, had a maximum value of 0.51 meters in the test area covering the United States. The second correction, the attraction change effect on geoid undulation, had a maximum value of 9.50 meters when the 10 deg cap was used in Stokes' equation. The last correction, the secondary indirect effect on geoid undulatin, was found negligible in the test area. The corrections were applied to uncorrected free air geoid undulations at 65 Doppler stations in the test area and compared with the Doppler undulations. Based on the assumption that the Doppler coordinate system has a z shift of 4 meters with respect to the geocenter, these comparisons showed that the corrections presented in this study yielded improved values of gravimetric undulations.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: REPT-336 , NAS 1.26:170347 , NASA-CR-170347
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  • 42
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    In:  CASI
    Publication Date: 2013-08-31
    Description: The radiometric requirements, internal calibration, sensor output format, geometric characteristics, and data processing constants for the LANDSAT 4 multispectral scanner and thematic mapper are described. In addition, telemetry format, onboard computer reports, and LANDSAT 4 communications are discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-85269 , NAS 1.15:85269 , E83-10213
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  • 43
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    In:  CASI
    Publication Date: 2013-08-31
    Description: The major accomplishments of the Center for Remote Sensing and Cartography are outlined. The analysis and inventory of the Parker Mountain rangeland and the use of multitemporal data to study aspen succession stages are discussed. New and continuing projects are also described including a Salt Lake County land use study, Wasatch-Cache riparian study, and Humboldt River riparian habitat study. Finally, progress in digital processing techniques is reported.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10223 , NAS 1.26:170081 , NASA-CR-170081
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  • 44
    Publication Date: 2013-08-31
    Description: Eight subsets using two to five frequencies of the SEASAT scanning multichannel microwave radiometer are examined to determine their potential in the retrieval of atmospheric water vapor content. Analysis indicates that the information concerning the 18 and 21 GHz channels are optimum for water vapor retrieval. A comparison with radiosonde observations gave an rms accuracy of approximately 0.40 g sq cm. The rms accuracy of precipitable water using different subsets was within 10 percent. Global maps of precipitable water over oceans using two and five channel retrieval (average of two and five channel retrieval) are given. Study of these maps reveals the possibility of global moisture distribution associated with oceanic currents and large scale general circulation in the atmosphere. A stable feature of the large scale circulation is noticed. The precipitable water is maximum over the Bay of Bengal and in the North Pacific over the Kuroshio current and shows a general latitudinal pattern.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-169786 , JPL-PUB-82-96 , NAS 1.26:169786 , E83-10182
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  • 45
    Publication Date: 2013-08-31
    Description: To support the evolution of increasingly sound user requirements definition processes that would meet the broad range of NASA's terrestrial applications planning and management needs during the 1980's, the user requirements processes as they function in the real world at the senior and middle management levels were evaluated. Special attention was given to geologic mapping and domestic crop reporting to provide insight into problems associated with the development and management of user established conventional practices and data sources. An attempt was made to identify alternative NASA user interfaces that sustain strengths, alleviate weaknesses, maximize application to multiple problems, and simplify management cognizance. Some of the alternatives are outlined and evaluated. It is recommended that NASA have an identified organizational point of focus for consolidation and oversight of the user processes.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-169835 , NAS 1.26:169835 , E83-10180
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  • 46
    Publication Date: 2013-08-31
    Description: The software design for the conical scanner evaluation system is presented. The purpose of this system is to support the performance analysis of the LANDSAT-D conical scanners, which are infrared horizon detection attitude sensors designed for improved accuracy. The system consists of six functionally independent subsystems and five interface data bases. The system structure and interfaces of each of the subsystems is described and the content, format, and file structure of each of the data bases is specified. For each subsystem, the functional logic, the control parameters, the baseline structure, and each of the subroutines are described. The subroutine descriptions include a procedure definition and the input and output parameters.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-170439 , E83-10175 , GSC-TR8206 , NAS 1.26:170439
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  • 47
    Publication Date: 2013-08-31
    Description: The geographical variability of short wavelength geoid power spectra (geoid roughness), was mapped for the world's oceans between latitudes 72 deg N and 72 deg S. A spectral analysis of SEASAT altimeter data, reduced to sea surface heights, was performed at 2 minute intervals for 15 consecutive days of the 3-day repeat orbit. The geoid roughness represented by these spectra for wavelengths shorter than about 220 km is separated from the total sea height variance and is displayed in the form of a global contour map. The global average geoid roughness is 32 cm RMS, varying from a high in excess of 2 m RMS near deep ocean trenches to a low of 2 cm RMS in the southeast Pacific near the East Pacific Rise. This average value agrees well with previous estimates based on gravimetry and GEOS-3 altimetry. In general, the smoothest areas in the marine geoid overlie relatively young seafloor adjacent mid-ocean spreading centers, where even short-wavelength topographic variations tend to be isostatically compensated.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:166819 , NASA-CR-166819 , E83-10105
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  • 48
    Publication Date: 2013-08-31
    Description: Recent research indicates that the use of remote sensing techniques for the measurement of near surface soil moisture could be practical in the not too distant future. Other research shows that infiltration rates, especially for average or frequent rainfall events, are extremely sensitive to the proper definition and consideration of the role of the soil moisture at the beginning of the rainfall. Thus, it is important that an easy to use, but theoretically sound, rainfall infiltration model be available if the anticipated remotely sensed soil moisture data is to be optimally utilized for hydrologic simulation. A series of numerical experiments with the Richards' equation for an array of conditions anticipated in watershed hydrology were used to develop functional relationships that describe temporal infiltration rates as a function of soil type and initial moisture conditions.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10142 , NASA-CR-169776 , CP-52-04372 , NAS 1.26:169776
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  • 49
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    In:  CASI
    Publication Date: 2013-08-31
    Description: A filter, fabricated to match the spectral response of the LANDSAT band 6 sensors, was received and the combined system response function computed. The half power points for the aircraft system are 10.5 micrometer and 11.55 micrometer compared to the 10.4 and 11.6 micrometer values for the satellite. These discrepancies are considered acceptable; their effect on the apparent temperature observed at the satellite is being evaluated. The filter was installed in the infrared line scanner and the line scanner was installed in the aircraft and field checked. A daytime underflight of the satellite is scheduled for the next clear overpass and the feasibility of a nightime overpass is being discussed with NASA. The LOWTRAN 5 computer code was obtained from the Air Force Geophysical Laboratory and is being implemented for use on this effort.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-169758 , E83-10130 , NAS 1.26:169758 , QR-1
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  • 50
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    In:  CASI
    Publication Date: 2013-08-31
    Description: Progress on the Heat Capacity Mapping Mission (HCMM) follow-on study is reported. Numerous image products for geologic interpretation of both HCMM and aircraft thermal data were produced. These include, among others, various combinations of the thermal data with LANDSAT and SEASAT data. The combined data sets were displayed using simple color composites, principal component color composites and black and white images, and hue, saturation intensity color composites. Algorithms for incorporating both atmospheric and elevation data simultaneously into the digital processing for creation of quantitatively correct thermal inertia images, are in the final development stage. A field trip to Death Valley was undertaken to field check the aircraft and HCMM data.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10036 , NAS 1.26:169508 , NASA-CR-169508
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  • 51
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    Publication Date: 2013-08-31
    Description: A quarterly listing of those documents and related publications that have been issued and placed in the AgRISTARS tracking system is presented. The Tracking List Report provides a catalog, by project, of technical publications arranged by type of document and gives the reference AgRISTARS document numbers, title and date of publication, the issuing organization, and the National Technical Information Service reference number.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: AP-L2-04116 , E83-10019 , NASA-CR-167728 , NAS 1.26:167728
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  • 52
    Publication Date: 2013-08-31
    Description: Spectral responses of two glaciated soils, Chalmers silty clay loam and Fincastle silt loam, formed under prairie grass and forest vegetation, respectively, were measured in the laboratory under controlled moisture equilibria using an Exotech Model 20C spectroradiometer to obtain spectral data in the laboratory under artificial illumination. The same spectroradiometer was used outdoors under solar illumination to obtain spectral response from dry and moistened field plots with and without corn residue cover, representing the two different soils. Results indicate that laboratory-measured spectra of moist soil are directly proportional to the spectral response of that same field-measured moist bare soil over the 0.52 micrometer to 1.75 micrometer wavelength range. The magnitudes of difference in spectral response between identically treated Chalmers and Fincastle soils are greatest in the 0.6 micrometers to 0.8 micrometer transition region between the visible and near infrared, regardless of field condition or laboratory preparation studied.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: LARS-052680 , NAS 1.26:167722 , SR-P2-04326 , NASA-CR-167722 , E83-10021
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  • 53
    Publication Date: 2013-08-31
    Description: A simple, second order parameterization of the water fluxes at a land surface for use as the appropriate boundary condition in general circulation models of the global atmosphere was developed. The derived parameterization incorporates the high nonlinearities in the relationship between the near surface soil moisture and the evaporation, runoff and percolation fluxes. Based on the one dimensional statistical dynamic derivation of the annual water balance, it makes the transition to short term prediction of the moisture fluxes, through a Taylor expansion around the average annual soil moisture. A comparison of the suggested parameterization is made with other existing techniques and available measurements. A thermodynamic coupling is applied in order to obtain estimations of the surface ground temperature.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: R82-36 , REPT-280 , NAS 1.26:169432 , NASA-CR-169432
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  • 54
    Publication Date: 2013-08-31
    Description: The data base software system, LARSPEC, is discussed and the data base format for agronomic, meteorological, spectroradiometer, and multiband radiometer data is described. In addition, the contents and formats of each record of data and the wavelength tables are listed and the codes used for some of the parameters are described.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: LARS-050182 , NASA-CR-167647 , NAS 1.26:167647 , SR-P2-04277 , E82-10381
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  • 55
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    In:  CASI
    Publication Date: 2013-08-31
    Description: Data reduction and preliminary comparisons and correlations of Heat Capacity Mapping Mission data to ground truth measurements were made. The data covered Utah Lake and the surrounding area. Output modes include a digital hard copy record of the intensity value for each pixel and color graphics. Analyses of non-diatom net plankton (algae), turbidity, nitrogen, phosphorus, and temperatures were made. In addition, infrared data for the agricultural area around Utah lake were also preliminarily examined and compared to depth to groundwater data.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-169168 , E82-10373 , QPR-1 , NAS 1.26:169168
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  • 56
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    Publication Date: 2013-08-31
    Description: The topographic complexity of various sections of the Ozark, Appalachian, and Interior Low Plateaus, as well as of the New England, Piedmont, Blue Ridge, Ouachita, and Valley and Ridge Provinces of the Eastern United States were characterized. The variability of autocorrelation within a small area (7 1/2-ft quadrangle) to the variability at widely separated and diverse areas within the same physiographic region was compared to measure the degree of uniformity of the processes which can be expected to be encountered within a given physiographic province. The variability of autocorrelation across the eight geomorphic regions was compared and contrasted. The total study area was partitioned into subareas homogeneous in terrain complexity. The relation between the complexity measured, the geomorphic process mix implied, and the way in which geobotanical information is modified into a more or less recognizable entity is demonstrated. Sampling strategy is described.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-169140 , NAS 1.26:169140
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  • 57
    Publication Date: 2013-08-31
    Description: A bilateral synthetic aperture radar (SAR) satellite program is defined. The studies include addressing the requirements supporting a SAR mission posed by a number of disciplines including science and operations in sea ice covered waters. Sea ice research problems such as ice information and total mission requirements, the mission components, the radar engineering parameters, and an approach to the transition of spacecraft SAR from a research to an operational tool were investigated.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:168984 , NASA-CR-168984
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  • 58
    Publication Date: 2013-08-31
    Description: The details of the algorithms and data sets required for satellite radar altimeter data processing are documented in a form suitable for (1) development of the benchmark software and (2) coding the operational software. The algorithms reported in detail are those established for altimeter processing. The algorithms which required some additional development before documenting for production were only scoped. The algorithms are divided into two levels of processing. The first level converts the data to engineering units and applies corrections for instrument variations. The second level provides geophysical measurements derived from altimeter parameters for oceanographic users.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.15:73293 , NASA-TM-73293
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  • 59
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    Publication Date: 2013-08-31
    Description: Temperature calibration and groundwater depth location studies were finalized. Distinctions among algae species and among suspended materials (turbidity) using HCMM data were investigated. Field evaluations of algae's effect on evaporation pan readings were completed and related to the lake and HCMM data. Additional correlations among infrared and reflectivity data were made using the color graphics capabilities developed during this project.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: QPR-3 , E82-10328 , NASA-CR-168907 , NAS 1.26:168907
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  • 60
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    In:  CASI
    Publication Date: 2013-08-31
    Description: The LANDSAT satellite is an effective tool in meeting the natural resources data requirements of state and federal legislation. The availability of data from the satellite is beginning to have an impact on state legislature activities. An overview of the history, operation, and data analysis techniques, is presented as well as a discussion of the advantages and limitations of this method of remote sensing. Applications are discussed in the areas of (1) land resource planning and management; (2) coastal zone management; (3) agriculture; (4) forestry; (5) routing and siting; (6) environmental monitoring; and (7) geological exploration. National and state sources from which information about LANDSAT technology is available are listed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-168859 , NAS 1.26:168859 , E82-10290
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  • 61
    Publication Date: 2013-08-31
    Description: The scanner collected data on October 15, 20, and 22, 1980. Single-channel gray-scale data products generated 5 minutes after the scanner were collected and showed details of the Chesapeake plume structure, suggesting that this quick-look capability could have potential use for experiments in real time. The Chesapeake Bay plume extended offshore about 5 nautical miles on October 15, and 7 nautical miles on October 20. Using the October 15 1980, data, a correlation coefficient of r = 0.889 was obtained between chlorophyll 'A' and the ratio of band 7 (664-684 nanometers) to band 9 (746-766 nanometers). This ratio was then used to calculate the average surface chlorophyll 'A' concentration of the water flowing out of the Chesapeak Bay. A ratio from the Ocean Color Scanner bands was created to simulate the ratio that the Multichannel Ocean Color Sensor uses to calculate chlorophyll A concentrations. Using the October 15, 1980, data set, this ratio has a correlation coefficient of r = -0.739 with the log of the chlorophyll 'A' and the ratio of band 2 minus band 4 to band 2 plus band 4 of the Ocean Color Scanner. No correlation is found between the Ocean Color Scanner data and total suspended solid measurements made on October 15, 1980.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.15:83290 , NASA-TM-83290
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  • 62
    Publication Date: 2013-08-31
    Description: A handbook was developed to provide information and support to the spaceborne remote sensing and frequency management communities: to guide sensor developers in the choice of frequencies; to advise regulators on sensor technology needs and sharing potential; to present sharing analysis models and, through example, methods for determining sensor sharing feasibility; to introduce developers to the regulatory process; to create awareness of proper assignment procedures; to present sensor allocations; and to provide guidelines on the use and limitations of allocated bands. Controlling physical factors and user requirements and the regulatory environment are discussed. Sensor frequency allocation achievable performance and usefulness are reviewed. Procedures for national and international registration, the use of non-allocated bands and steps for obtaining new frequency allocations, and procedures for reporting interference are also discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-RP-1086
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  • 63
    Publication Date: 2013-08-31
    Description: A design, fabrication, and implementation of a horizon control of a longwall shearer was performed. This equipment was tested and demonstrated aboveground. This hardware was also installed on a longwall face. The feasibility of providing horizon control for a shearer was demonstrated aboveground. The feasibility of retrofitting the necessary sensors in a survivable manner was demonstrated underground. Subsequent field tests of a specific component, the natural background sensor, at a western location demonstrated the particular usefulness of this device on a wider application basis.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS7946-VOL-1 , NASA-CR-161969
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  • 64
    Publication Date: 2013-08-31
    Description: The possibility of improving the accuracy of geodetic results by use of simultaneously observed ranges to Lageos, in a differencing mode, from pairs of stations was studied. Simulation tests show that model errors can be effectively minimized by simultaneous range differencing (SRD) for a rather broad class of network satellite pass configurations. The methods of least squares approximation are compared with monomials and Chebyshev polynomials and the cubic spline interpolation. Analysis of three types of orbital biases (radial, along- and across track) shows that radial biases are the ones most efficiently minimized in the SRC mode. The degree to which the other two can be minimized depends on the type of parameters under estimation and the geometry of the problem. Sensitivity analyses of the SRD observation show that for baseline length estimations the most useful data are those collected in a direction parallel to the baseline and at a low elevation. Estimating individual baseline lengths with respect to an assumed but fixed orbit not only decreases the cost, but it further reduces the effects of model biases on the results as opposed to a network solution. Analogous results and conclusions are obtained for the estimates of the coordinates of the pole.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:170566 , NASA-CR-170566 , REPT-338
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  • 65
    Publication Date: 2013-08-31
    Description: Hourly weather data for several clear sky days during summer at Phoenix and Baltimore which covered a wide range of variables were used with a plant atmosphere model to simulate soybean (Glycine max L.) leaf water potential, stomatal resistance and canopy temperature at various soil water potentials. The air and dew point temperatures were found to be the significant weather variables affecting the canopy temperatures. Under identical weather conditions, the model gives a lower canopy temperature for a soybean crop with a higher rooting density. A knowledge of crop rooting density, in addition to air and dew point temperatures is needed in interpreting infrared radiometric observations for soil water status. The observed dependence of stomatal resistance on the vapor pressure deficit and soil water potential is fairly well represented. Analysis of the simulated leaf water potentials indicates overestimation, possibly due to differences in the cultivars.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.15:84009 , E83-10319 , NASA-TM-84009
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  • 66
    Publication Date: 2013-08-31
    Description: The format of high density tapes which contain partially processed LANDSAT 4 and LANDSAT D prime MSS image data is defined. This format is based on and is compatible with the existing format for partially processed LANDSAT 3 MSS image data HDTs.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: GES-10077-REV-D , NAS 1.26:170544 , E83-10274 , NASA-CR-170544
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  • 67
    Publication Date: 2013-08-31
    Description: Results of vibration, acoustical noise, and thermal vacuum are described as well as tests studies of EMI/EMC and mass properties conducted for thematic mapper systems integration. Liens are summarized and the engineering change proposal status is presented. Requests for deviation/waiver are included along with failure and nonforming material reports.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-170527 , HS-236-0019-1679-VOL-3-PT-A , HAC-REF-D4596-VOL-3-PT-A , NAS 1.26:170527 , E83-10261
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  • 68
    Publication Date: 2013-08-31
    Description: Tests, test plans, test results are described and results are compared to requirements for the thematic mapper. Summary charts of failure reports and requests for deviation/waiver are included.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: HS-236-0019-1679-VOL-1 , NAS 1.26:170526 , NASA-CR-170526 , E83-10257 , HAC-REF-D4596-VOL-1
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  • 69
    Publication Date: 2013-08-31
    Description: The data obtained for the Band 1 thematic mapper flight full band assembly (P/N 50797) are summarized. The data were collected from half band, post amplifier, and full band acceptance test data records.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:170534 , NASA-CR-170534 , HS-236-0019-1679-VOL-4-PT-D , E83-10268 , HAC-REF-D4596-VOL-4-PT-D
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  • 70
    Publication Date: 2013-08-31
    Description: Data from the final performance tests of the thematic mapper flight model multiplexer at ambient temperature are presented. Results cover the power supply, the input buffer, and the A/D threshold for bands 1 through 4.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10264 , NASA-CR-170530 , HS-236-0019-1679-VOL-4A-BK-1 , NAS 1.26:170530 , HAC-REF-D4596-VOL-4-PT-A-BK-1
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  • 71
    Publication Date: 2013-08-31
    Description: Summarized performance data are presented for the following major subsystems of the thematic mapper: the focal plane assembly, the radiative cooler, the radiative cooler door assembly, the top optical assembly, and the telescope assembly. Reference lists of the configurations status and of nonconforming material reports, failure reports, and requests for deviation/waiver are included.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: HAC-REF-D4596-VOL-2-PT-B , HS-236-0019-1679-VOL-2-PT-B , NASA-CR-170524 , NAS 1.26:170524 , E83-10259
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  • 72
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    In:  CASI
    Publication Date: 2013-08-31
    Description: A functional description of the new LANDSAT-4 World Reference System (WRS) with an overview of the main orbital parameters and instrument coverages is presented to provide the data user with the primary information required to understand LANDSAT-4 orbital characteristics, to effectively use the WRS indexing scheme, and to request specific geographic coverage on the desired observation dates.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.15:85284 , NASA-TM-85284 , E83-10238 , NAS 1.15:85284
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  • 73
    Publication Date: 2013-08-31
    Description: The format for computer compatible tapes containing thematic mapper archival data and product data generated by the LANDSAT-D Assessment System (LAS). These data tapes are engineering products developed primarily for LAS internal use to assist in the early evaluation of thematic mapper data quality and ground data processing algorithms during the limited period of one year following the launch of LANDSAT-D.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-85267 , E83-10229 , NAS 1.15:85267
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  • 74
    Publication Date: 2013-08-31
    Description: The 241 mm photographic product produced by the Goddard Space Flight Center Data Management System for LANDSAT-D is described. Film type and format, image dimensions, frame ID, gray scale, resolution patterns, registration marks, etc. are addressed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10239 , NAS 1.15:85272 , LSD-ICD-801 , NASA-TM-85272
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  • 75
    Publication Date: 2013-08-31
    Description: The format of the HDT-AM product which contains partially processed LANDSAT D and D Prime multispectral scanner image data is defined. Recorded-data formats, tape format, and major frame types are described.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-TM-85273 , NAS 1.15:85273 , LSD-ICD-201 , E83-10240
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  • 76
    Publication Date: 2013-08-31
    Description: Cost effective, safe, and technologically sound applications of automation technology to underground coal mining were identified. The longwall analysis commenced with a general search for government and industry experience of mining automation technology. A brief industry survey was conducted to identify longwall operational, safety, and design problems. The prime automation candidates resulting from the industry experience and survey were: (1) the shearer operation, (2) shield and conveyor pan line advance, (3) a management information system to allow improved mine logistics support, and (4) component fault isolation and diagnostics to reduce untimely maintenance delays. A system network analysis indicated that a 40% improvement in productivity was feasible if system delays associated with all of the above four areas were removed. A technology assessment and conceptual system design of each of the four automation candidate areas showed that state of the art digital computer, servomechanism, and actuator technologies could be applied to automate the longwall system.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:169933 , JPL-PUB-82-99 , DOE/JPL-12548/16 , NASA-CR-169933
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  • 77
    Publication Date: 2013-08-31
    Description: The processing of MAGSAT scalar data to construct a crustal magnetic anomaly map over the continental U.S. involves removal of the reference field model, a path-by-path subtraction of a low order polynomial through a least-squares fit to reduce orbital offset errors, and a two dimensional spectral filtering to mitigate the spectral bias induced by the path-by-path orbital correction scheme. The resultant anomaly map shows reasonably good correlations with an aeromagnetic map derived from the project MAGNET. Prominent satellite magnetic anomalies are identified in terms of geological provinces and age boundaries. An inversion method was applied to MAGSAT data which produces both the Curie depth topography and laterally varying magnetic susceptibility of the crust. A contoured Curie depth map thus derived shows general agreements with a crustal thickness map based on seismic data.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:169837 , NASA-CR-169837 , E83-10183
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  • 78
    facet.materialart.
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    In:  CASI
    Publication Date: 2013-08-31
    Description: Wind speeds derived from versions of the least-squares and regression algorithms developed after the JASIN Workshop were evaluated. The accuracy of scanning multichannel microwave radiometer (SMMR) wind retrievals was determined in terms of the intrinsic accuracy of a baseline surface truth data set in favorable conditions. Effects which degrade the wind retrievals or introduce biases were identified and assessed. The performance of the SMMR in storms was ascertained with particular emphasis on the effects of rain.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10172 , JPL-9950-666 , NAS 1.26:169782 , NASA-CR-169782
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  • 79
    Publication Date: 2013-08-31
    Description: The feasibility of using LANDSAT digital data in conjunction with topographic data to delineate commercial forests by stand size and crown closure in the Tanana River basin of Alaska was tested. A modified clustering approach using two LANDSAT dates to generate an initial forest type classification was then refined with topographic data. To further demonstrate the ability of remotely sensed data in a fire protection planning framework, the timber type data were subsequently integrated with terrain information to generate a fire hazard map of the study area. This map provides valuable assistance in initial attack planning, determining equipment accessibility, and fire growth modeling. The resulting data sets were incorporated into the Alaska Department of Natural Resources geographic information system for subsequent utilization.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NAS 1.26:166391 , E83-10162 , NASA-CR-166391
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