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  • 1
    Publication Date: 2019-07-13
    Description: The Moderate Resolution Imaging Spectroradiometer (MODIS) radiometric calibration product is described for the thermal emissive and the reflective solar bands. Specific sensor design characteristics are identified to assist in understanding how the calibration algorithm software product is designed. The reflected solar band software products of radiance and reflectance factor both are described. The product file format is summarized and the MODIS Characterization Support Team (MCST) Homepage location for the current file format is provided.
    Keywords: Computer Programming and Software
    Type: Geoscience and Remote Sensing; 24-30 Jul. 2000; Honolulu, HI; United States
    Format: application/pdf
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  • 2
    Publication Date: 2019-07-13
    Description: As geospatial missions age, one of the challenges for the usability of data is the availability of relevant and updated metadata with sufficient documentation that can be used by future generations of users to gain knowledge from the original data. Given that remote sensing data undergo many intermediate processing steps, for example, an understanding of the exact algorithms employed and the quality of that data produced, could be key considerations for these users. As interest in global climate data is increasing, documentation about older data, their origins, and provenance are valuable to first time users attempting to perform historical climate research or comparative analysis of global change. Incomplete or missing documentation could be what stands in the way of a new researcher attempting to use the data. Therefore, preservation of documentation and related metadata is sometimes just as critical as the preservation of the original observational data. The Goddard Earth Sciences - Data and Information Service Center (GES DISC), a NASA Earth science Distributed Active Archive Center (DAAC), that falls under the management structure of the Earth Science Data and Information System (ESDIS), is actively pursuing the preservation of all necessary artifacts needed by future users. In this paper we will detail the data custodial planning and the data lifecycle process developed for content preservation, our implementation of a Preservation System to safeguard documents and associated artifacts from legacy (older) missions, as well as detail lessons learned regarding access rights and confidentiality of information issues. We also elaborate on key points that made our preservation effort successful; the primary points being: the drafting of a governing baseline for historical data preservation from satellite missions, and using the historical baseline as a guide to content filtering of what documents to preserve. The Preservation System currently archives documentation content for High Resolution Dynamics Limb Sounder (HIRDLS), Upper Atmosphere Research Satellite (UARS), Total Ozone Mapping Spectrometer (TOMS), and the 1960's era Nimbus mission. Documentation from other missions like the Tropical Rainfall Measuring Mission (TRMM), the Ozone Monitoring Instrument (OMI), and the Atmospheric Infra-Red Sounder (AIRS) are also slated to be added to this repository, as well as the other mission datasets to be preserved at the GES DISC.
    Keywords: Meteorology and Climatology; Documentation and Information Science; Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN24962 , Journal of Map & Geography Libraries: Advances in Geospatial Information, Collections and Archives (e-ISSN 1542-0361); 11; 3; 271-288
    Format: application/pdf
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  • 3
    Publication Date: 2019-07-13
    Description: Remote Sensing data generation by NASA to study Earth s geophysical processes was initiated in 1960 with the launch of the first Television Infrared Observation Satellite Program (TIROS), to develop a meteorological satellite information system. What would be deemed as a primitive data set by today s standards, early Earth science missions were the foundation upon which today s remote sensing instruments have built their scientific success, and tomorrow s instruments will yield science not yet imagined. NASA Scientific Data Stewardship requirements have been documented to ensure the long term preservation and usability of remote sensing science data. In recent years, the Federation of Earth Science Information Partners and NASA s Earth Science Data System Working Groups have organized committees that specifically examine standards, processes, and ontologies that can best be employed for the preservation of remote sensing data, supporting documentation, and data provenance information. This presentation describes the activities, issues, and implementations, guided by the NASA Earth Science Data Preservation Content Specification (423-SPEC-001), for preserving instrument characteristics, and data processing and science information generated for 20 Earth science instruments, spanning 40 years of geophysical measurements, at the NASA s Goddard Earth Sciences Data and Information Services Center (GES DISC). In addition, unanticipated preservation/implementation questions and issues in the implementation process are presented.
    Keywords: Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN6790 , American Geophysical Union Fall Meeting; 22-25 Jan. 2013; San Francisco, CA; United States
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  • 4
    Publication Date: 2019-08-30
    Description: Many NASA Earth Observing System (EOS) have either already reached the end of their active life or are nearing it. Preservmissionsation of data products is a fairly well defined task for the NASA EOS Data Centers or DAACs.The Goddard Earth Sciences Data and Information Services Center (GES-DISC) has implemented a repository system, which is capable of long-term archive of documentation artifacts and other associated digital content. The existing GES-DISC Repository System is based on Fedora Commons, an open-source repository management software, for cost savings and flexibility.The first mission to utilize the GES-DISC Repository System was the High Resolution Dynamics Limb Sounder (HIRDLS) on the Aura spacecraft. Since then, the GES DISC has gathered documentation from the UARS and TOMS into the Repository. The Microwave Limb Sounder (MLS) team has begun delivering some early pre-launch documents to the GES-DISC Repository System as well. Other missions in planning or progress include AIRS, OMI, SORCE, SNPP Sounder, and TRMM.
    Keywords: Earth Resources and Remote Sensing
    Type: GSFC-E-DAA-TN72739 , AURA Science Team Meeting; Aug 27, 2019 - Aug 29, 2019; Pasadena, CA; United States
    Format: application/pdf
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