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  • 1
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    Applications of ISES for vegetation and land use (1990)
    In:  CASI
    Details
    Publication Date: 2013-08-31
    Description: Remote sensing relative to applications involving vegetation cover and land use is reviewed to consider the potential benefits to the Earth Observing System (Eos) of a proposed Information Sciences Experiment System (ISES). The ISES concept has been proposed as an onboard experiment and computational resource to support advanced experiments and demonstrations in the information and earth sciences. Embedded in the concept is potential for relieving the data glut problem, enhancing capabilities to meet real-time needs of data users and in-situ researchers, and introducing emerging technology to Eos as the technology matures. These potential benefits are examined in the context of state-of-the-art research activities in image/data processing and management.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Earth Sciences Requirements for the Information Sciences Experiment System; p 169-187
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Autonomous earth feature classification - Shuttle and aircraft flight test results (1983)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The Feature Identification and Location Experiment (FILE) flown on the Shuttle STS-2 mission November 12-14, 1981, tested a technique for autonomous real-time classification of selected earth features, i.e., water; bare land; vegetation; and clouds, snow, and ice. A second instrument, designed for aircraft flights, flew over regions of the west and east coasts of the United States and across the country. In each instrument, two bore-sighted CCD cameras image earth scenes in two spectral bands. Each camera includes a 100-element by 100-element detector array, and classification circuits. A simple algorithm and logic circuit provides classification decisions within a few microseconds. The experiment records the number of picture elements (pixels) representing each feature and the reflected solar radiation for each band. After flight, pixel-by-pixel classification images are constructed and compared with 70-mm color photographs taken simultaneously with the CCD-camera data.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: AIAA PAPER 83-0417
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Spherical harmonic representation of the main geomagnetic field for world charting and investigations of some fundamental problems of physics and geophysics (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Quiet-day data from MAGSAT were examined for effects which might test the validity of Maxwell's equations. Both external and toroidal fields which might represent a violation of the equations appear to exist, well within the associated errors. The external field might be associated with the ring current, and varies of a time-scale of one day or less. Its orientation is parallel to the geomagnetic dipole. The toriodal field can be confused with an orientation in error (in yaw). It the toroidal field really exists, its can be related to either ionospheric currents, or to toroidal fields in the Earth's core in accordance with Einstein's unified field theory, or to both.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E82-10075 , NASA-CR-165097 , NAS 1.26:165097
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Spherical harmonic representation of the main geomagnetic field for world charting and investigations of some fundamental problems of physics and geophysics (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The data processing of MAGSAT investigator B test tapes and data tapes, and tapes of selected data on 15 magnetically quiet days is reported. The 1980 World Chart spherical model was compared with the MAGSAT (3/80) and MAGSAT vector data were used in the models. An article on modelling the geomagnetic field using satellite data is included.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E82-10203 , NASA-CR-168630 , NAS 1.26:168630
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Adaptive remote sensing technology for feature recognition and tracking (1979)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A technology development plan designed to reduce the data load and data-management problems associated with global study and monitoring missions is described with a heavy emphasis placed on developing mission capabilities to eliminate the collection of unnecessary data. Improved data selectivity can be achieved through sensor automation correlated with the real-time needs of data users. The first phase of the plan includes the Feature Identification and Location Experiment (FILE) which is scheduled for the 1980 Shuttle flight. The FILE experiment is described with attention given to technology needs, development plan, feature recognition and classification, and cloud-snow detection/discrimination. Pointing, tracking and navigation received particular consideration, and it is concluded that this technology plan is viewed as an alternative to approaches to real-time acquisition that are based on extensive onboard format and inventory processing and reliance upon global-satellite-system navigation data.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Institute of Electrical and Electronics Engineers, Conference on Pattern Recognition and Image Processing; Aug 06, 1979 - Aug 08, 1979; Chicago, IL
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Spherical harmonic representation of the main geomagnetic field for world charting and investigations of some fundamental problems of physics and geophysics (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Progress in the harmonic analysis of MAGSAT data is reported. Single-day data sets were subdivided into information on the sunrise side of the Earth and information on the sunset side of the Earth. Data for the main and external fields each demonstrate a clear and consistent systematic difference between the sets of data which was determined to be, due to ionospheric currents which differ from the sunset to the sunrise terminator. A toroidal field was analyzed for and determined to be an apparent toroidal field resulting from electric currents concentrated in the two terminators. Progressive elimination of auroral zone data demonstrates that the information presented does not arise from complications due to Birkeland currents.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E82-10390 , NASA-CR-169179 , NAS 1.26:169179
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Earth feature identification and tracking technology development (1979)
    In:  Other Sources
    Details
    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.
    Format: text
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    NASA TECHNICAL REPORTS
  • 8
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    Earth Sciences Requirements for the Information Sciences Experiment System (1990)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The purpose of the workshop was to further explore and define the earth sciences requirements for the Information Sciences Experiment System (ISES), a proposed onboard data processor with real-time communications capability intended to support the Earth Observing System (Eos). A review of representative Eos instrument types is given and a preliminary set of real-time data needs has been established. An executive summary is included.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CP-3072 , L-16773 , NAS 1.55:3072 , May 01, 1989 - May 04, 1989; Williamsburg, VA; United States
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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