{"@type": "dcat:Dataset", "accessLevel": "public", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "undefined", "hasEmail": "mailto:uso@asf.alaska.edu"}, "description": "The Advanced Land Observing Satellite-2 (ALOS-2), launched May 14, 2014, is a follow-on mission to ALOS. ALOS-2 features an imaging microwave radar, PALSAR-2 (Phased Array type L-band Synthetic Aperture Radar-2). With a wider range of observation modes PALSAR-2 improves on its predecessor PALSAR (which flew onboard ALOS). PALSAR-2 observes in the L-band, specifically 1257.5 MHz which is adjustable by \u00b1 21 MHz. ScanSAR mode provides a spatial resolution of 60 m and 100 m for a swath of 490 km and 350 km respectively. Stripmap mode provides a resolution of 10 m, 6 m, and 3 m for a swath of 70 km, 70 km, and 50 km respectively. Spotlight mode provides a resolution of 1 m x 3 m for a swath of 25 km x 25 km. ALOS-2 also decreased the revisit time of its predecessor from 46 days to 14 days. ALOS-2 also has the ability to look either to the right or the left.\n\nThis collection provides open access to ScanSAR mode data acquired by ALOS-2. Recently acquired data are not included but are added when released for open access by JAXA. Although the ScanSAR mode has been acquired globally, the collection currently contains only partial global coverage, but coverage is increasing as data become available. \n\nProducts have been processed by JAXA as Level 1.1, such that range and single look azimuth compressed data is represented by complex I and Q channels to preserve the magnitude and phase information. The range coordinate is in slant range. The image is focused onto zero Doppler direction, and an image file is generated per each scan for ScanSAR mode. In addition the full aperture processing method was used to generate the products. With the full aperture method, range compression and one look azimuth compression are performed for the data whose gaps between neighboring bursts in a sub swath are filled with zeroes, this processing is performed for each scan and each polarization. Granules in this collection are distributed as a zip and are quite large, with the majority being 28GB (single polarization) or 56GB (dual polarization).", "distribution": [{"@type": "dcat:Distribution", "description": "Access the data via HTTP.", "downloadURL": "https://oco2.gesdisc.eosdis.nasa.gov/data/OCO2_DATA/OCO2_L1aIn_Sample.11/", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through a directory map"}, {"@type": "dcat:Distribution", "description": "Access the data via the OPeNDAP protocol.", "downloadURL": "https://oco2.gesdisc.eosdis.nasa.gov/opendap/OCO2_L1aIn_Sample.11/contents.html", "format": "HTML", "mediaType": "text/html", "title": "Use OPeNDAP to access the dataset's data"}, {"@type": "dcat:Distribution", "description": "Access the dataset landing page from the GES DISC website.", "downloadURL": "https://disc.gsfc.nasa.gov/datacollection/OCO2_L1aIn_Sample_11.html", "format": "HTML", "mediaType": "text/html", "title": "This dataset's landing page"}, {"@type": "dcat:Distribution", "description": "Level 1A Software Interfase Specification.", "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/SDOS_SIS_L1aIn.V7.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View the primary investigator's documentation for this dataset"}, {"@type": "dcat:Distribution", "description": "OCO-2 Data Gaps", "downloadURL": "https://disc.gsfc.nasa.gov/information/documents?title=OCO+Known+Data+Issues", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "OCO-2 Documentation", "downloadURL": "https://disc.gsfc.nasa.gov/information/documents?title=OCO-2+Documents", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "OCO-2 Project Home Page", "downloadURL": "https://ocov2.jpl.nasa.gov/", "format": "HTML", "mediaType": "text/html", "title": "The dataset's project home page"}, {"@type": "dcat:Distribution", "description": "Publications from the Science Team", "downloadURL": "https://ocov2.jpl.nasa.gov/science/publications/", "format": "HTML", "mediaType": "text/html", "title": "View documentation related to this dataset"}, {"@type": "dcat:Distribution", "description": "README document.", "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/README.OCO2.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View this dataset's read me document"}, {"@type": "dcat:Distribution", "description": "Subset recipe using OPeNDAP", "downloadURL": "https://disc.gsfc.nasa.gov/information/howto?title=How+to+download+a+spatial+and+variable+subset+of+Level+1B+data+using+OPeNDAP", "format": "HTML", "mediaType": "text/html", "title": "View this dataset's how-to documentation"}, {"@type": "dcat:Distribution", "description": "This software (NASA NTR-49044) retrieves a set of atmospheric/surface/instrument parameters from a simultaneous fit to spectra from multiple absorption bands. The software uses an iterative, non-linear retrieval technique (optimal estimation). After the retrieval process has converged, the software performs an error analysis. The products of the software include all quantities needed to understand the information content of the measurement, its uncertainty, and its dependence on interfering atmospheric properties.\n\nJet Propulsion Laboratory, California Institute of Technology.\nCopyright 2016 California Institute of Technology.\nU.S. Government sponsorship acknowledged.", "downloadURL": "https://github.com/nasa/RtRetrievalFramework", "format": "HTML", "mediaType": "text/html", "title": "Downloadable software applications"}, {"@type": "dcat:Distribution", "description": "USER'S GUIDE", "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_OCO3_B10_DUG.pdf", "format": "PDF", "mediaType": "application/pdf", "title": "View this dataset's user's guide"}, {"@type": "dcat:Distribution", "description": "Use the Earthdata Search to find and retrieve data sets across multiple data centers.", "downloadURL": "https://search.earthdata.nasa.gov/search?q=OCO2_L1aIn_Sample", "format": "HTML", "mediaType": "text/html", "title": "Download this dataset through Earthdata Search"}, {"@type": "dcat:Distribution", "downloadURL": "https://docserver.gesdisc.eosdis.nasa.gov/public/project/OCO/OCO2_logo.jpg", "format": "JPEG", "mediaType": "image/jpeg", "title": "Get a related visualization"}], "identifier": "C3315903479-ASF", "issued": "2024-12-04", "keyword": ["biosphere", "cryosphere", "earth-science", "ecosystems", "geomorphic-landforms-processes", "land-surface", "sea-ice", "solid-earth", "tectonics"], "landingPage": "https://cmr.earthdata.nasa.gov:443/search/concepts/C3315903479-ASF.html", "language": ["en-US"], "modified": "2025-03-31", "programCode": ["026:001"], "publisher": {"@type": "org:Organization", "name": "ASF"}, "spatial": "-180.0 -90.0 180.0 90.0", "temporal": "2014-08-01T00:00:00Z/2025-02-24T00:00:00Z", "theme": ["geospatial"], "title": "ALOS-2 PALSAR-2 Level 1 ScanSAR Product"}