CDDIS_VLBI_data
Very Long Baseline Interferometry (VLBI) is a geometric technique: it measures the time difference between the arrival at two Earth-based antennas of a radio wavefront emitted by a distant quasar. VLBI precisely locates points on Earth by comparing radio signals from a quasar radio source located in deep space received at different times at different Earth ground stations. This method gives relative positions of the Earth stations. VLBI data can be used to calculate information on Earth rotation, length of day, polar motion, baseline and velocities of stations. Products generated by VLBI contribute to research in many areas, including solid Earth, tides, studies of the vertical, fundamental astronomy, and VLBI technique improvement.
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Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| bureauCode |
[ "026:00" ] |
| contactPoint |
{ "fn": "undefined", "@type": "vcard:Contact", "hasEmail": "mailto:support-cddis@earthdata.nasa.gov" } |
| description | Very Long Baseline Interferometry (VLBI) is a geometric technique: it measures the time difference between the arrival at two Earth-based antennas of a radio wavefront emitted by a distant quasar. VLBI precisely locates points on Earth by comparing radio signals from a quasar radio source located in deep space received at different times at different Earth ground stations. This method gives relative positions of the Earth stations. VLBI data can be used to calculate information on Earth rotation, length of day, polar motion, baseline and velocities of stations. Products generated by VLBI contribute to research in many areas, including solid Earth, tides, studies of the vertical, fundamental astronomy, and VLBI technique improvement. |
| distribution |
[ { "@type": "dcat:Distribution", "title": "Download this dataset", "format": "HTML", "mediaType": "text/html", "description": "Data Access link for ITSD project", "downloadURL": "https://nsidc.org/data/data-access-tool/AA_L2A/versions/1/" }, { "@type": "dcat:Distribution", "title": "Download this dataset", "format": "HTML", "mediaType": "text/html", "description": "Direct download via HTTPS protocol.", "downloadURL": "https://n5eil01u.ecs.nsidc.org/AMSA/AA_L2A.001/" }, { "@type": "dcat:Distribution", "title": "View documentation related to this dataset", "format": "HTML", "mediaType": "text/html", "description": "Includes a user's guide, supplemental documents like ATBDs and academic papers, How Tos, FAQs, etc.", "downloadURL": "https://doi.org/10.5067/ADEOS-II/AMSR/AA_L2A.001" }, { "@type": "dcat:Distribution", "title": "This dataset's landing page", "format": "HTML", "mediaType": "text/html", "description": "Provides access to data, documentation, tools, citation information, support, and other resources.", "downloadURL": "https://doi.org/10.5067/ADEOS-II/AMSR/AA_L2A.001" }, { "@type": "dcat:Distribution", "title": "Google Scholar search results", "format": "HTML", "mediaType": "text/html", "description": "Search results for publications that cite this dataset by its DOI.", "downloadURL": "https://scholar.google.com/scholar?q=10.5067%2FADEOS-II%2FAMSR%2FAA_L2A.001" } ] |
| identifier | C1000000043-CDDIS |
| issued | 1982-01-01 |
| keyword |
[ "nasa" ] |
| landingPage | https://cmr.earthdata.nasa.gov:443/search/concepts/C1000000043-CDDIS.html |
| language |
[ "en-US" ] |
| modified | 2025-04-01 |
| programCode |
[ "026:001" ] |
| publisher |
{ "name": "NASA/GSFC/SED/ESD/GGL/CDDIS", "@type": "org:Organization" } |
| spatial | -180.0 -90.0 180.0 90.0 |
| temporal | 1979-08-03T00:00:00Z/2022-01-17T00:00:00Z |
| theme |
[ "IVS", "geospatial" ] |
| title | CDDIS_VLBI_data |
