CEOS Cal Val Test Site - Dome C, Antarctica - Instrumented Site

Description

On the background of these requirements for sensor calibration, intercalibration and product validation, the subgroup on Calibration and Validation of the Committee on Earth Observing System (CEOS) formulated the following recommendation during the plenary session held in China at the end of 2004, with the goal of setting-up and operating an internet based system to provide sensor data, protocols and guidelines for these purposes: Background: Reference Datasets are required to support the understanding of climate change and quality assure operational services by Earth Observing satellites. The data from different sensors and the resulting synergistic data products require a high level of accuracy that can only be obtained through continuous traceable calibration and validation activities. Requirement: Initiate an activity to document a reference methodology to predict Top of Atmosphere (TOA) radiance for which currently flying and planned wide swath sensors can be intercompared, i.e. define a standard for traceability. Also create and maintain a fully accessible web page containing, on an instrument basis, links to all instrument characteristics needed for intercomparisons as specified above, ideally in a common format. In addition, create and maintain a database (e.g. SADE) of instrument data for specific vicarious calibration sites, including site characteristics, in a common format. Each agency is responsible for providing data for their instruments in this common format. Recommendation : The required activities described above should be supported for an implementation period of two years and a maintenance period over two subsequent years. The CEOS should encourage a member agency to accept the lead role in supporting this activity. CEOS should request all member agencies to support this activity by providing appropriate information and data in a timely manner. Instrumented Sites: Dome C, Antarctica is one of eight instrumented sites that are CEOS Reference Test Sites. The CEOS instrumented sites are provisionally being called LANDNET. These instrumented sites are primarily used for field campaigns to obtain radiometric gain, and these sites can serve as a focus for international efforts, facilitating traceability and inter-comparison to evaluate biases of in-flight and future instruments in a harmonized manner.  In the longer-term it is anticipated that these sites will all be fully automated and provide surface and atmospheric measurements to the WWW in an autonomous manner reducing some of the cost of a manned campaign, at present three can operate in this manner.

Resources

Name Format Description Link
21 Committee on Earth Observation Satellites (CEOS) Working Group on Calibration and Validation (WGCV) Test Sites. http://calvalportal.ceos.org/web/guest/home
55 Collection-specific granule Open Search Descriptor Document https://cmr.earthdata.nasa.gov/opensearch/granules/descriptor_document.xml?collectionConceptId=C1220566821-USGS_LTA
21 Search results for publications that cite this dataset by its DOI. https://scholar.google.com/scholar?q=10.5067%2FNX1R09ORNOZN
21 NASA's newest search and order tool for subsetting, reprojecting, and reformatting data. https://search.earthdata.nasa.gov/search?q=AU_SI6+V001
21 Direct download via HTTPS protocol. https://cmr.earthdata.nasa.gov/virtual-directory/collections/C3243519075-NSIDC_CPRD
21 This application allows you to interactively browse global satellite imagery within hours of it being acquired. You can also save it, share it, and download the underlying data. https://worldview.earthdata.nasa.gov/?p=arctic&l=BlueMarble_NextGeneration%2CAMSRU2_Sea_Ice_Brightness_Temp_6km_89V%2CAMSRU2_Sea_Ice_Brightness_Temp_6km_89H%2CCoastlines
21 Provides access to data, documentation, tools, citation information, support, and other resources. https://doi.org/10.5067/NX1R09ORNOZN
21 Includes a user's guide, supplemental documents like ATBDs and academic papers, How Tos, FAQs, etc. https://doi.org/10.5067/NX1R09ORNOZN

Tags

  • land-use-land-cover
  • land-surface
  • national-geospatial-data-asset
  • sensor-characteristics
  • ngda
  • spectral-engineering
  • surface-radiative-properties
  • surface-thermal-properties
  • earth-science

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