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  • Ground-Based Doppler Orbitography by Radiopositioning Integrated on Satellite (DORIS) IDS Satellite Orbit Product from NASA CDDIS

    https://cmr.earthdata.nasa.gov/search/concepts/C1602851234-CDDIS.xml
    Description:

    Doppler Orbitography by Radiopositioning Integrated on Satellite (DORIS) Satellite Orbit Product from the NASA Crustal Dynamics Data Information System (CDDIS). DORIS is a dual-frequency Doppler system consisting of a receiver flying aboard a satellite and a globally distributed network of ground beacons. The DORIS receiver on-board the orbiting satellite tracks the dual-frequency radio signals transmitted by the network of ground beacons and generates the DORIS data. A measurement is made of either the Doppler shift or absolute phase as the satellite’s orbit moves over the ground-based beacon. DORIS data records contain a time-tagged range-rate measurement with associated ancillary information. DORIS observations from a global network can be utilized for a variety of products. Analysis Centers (ACs) of the International DORIS Service (IDS) retrieve DORIS data on a regular basis to compute various DORIS products from data generated by the DORIS beacons supporting the IDS network. These products include orbits of satellites with DORIS receivers onboard. These orbit products are available in SP1 or SP3 orbit format.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    CDDIS Short Name: DORIS_IDS_orbit_prod Version ID: 1 Unique ID: C1602851234-CDDIS

  • Ground-Based Doppler Orbitography by Radiopositioning Integrated on Satellite (DORIS) IDS Weekly Station Position Product from NASA CDDIS

    https://cmr.earthdata.nasa.gov/search/concepts/C1544924806-CDDIS.xml
    Description:

    Doppler Orbitography by Radiopositioning Integrated on Satellite (DORIS) Weekly Station Position Product from the NASA Crustal Dynamics Data Information System (CDDIS). DORIS is a dual-frequency Doppler system consisting of a receiver flying aboard a satellite and a globally distributed network of ground beacons. The DORIS receiver on-board the orbiting satellite tracks the dual-frequency radio signals transmitted by the network of ground beacons and generates the DORIS data. A measurement is made of either the Doppler shift or absolute phase as the satellite’s orbit moves over the ground-based beacon. DORIS data records contain a time-tagged range-rate measurement with associated ancillary information. DORIS observations from a global network can be utilized for a variety of products. Analysis Centers (ACs) of the International DORIS Service (IDS) retrieve DORIS data on a regular basis to compute weekly station position solutions for the DORIS beacons supporting the IDS network. The IDS Analysis Center Coordinator combines these individual AC solutions in a standard least-squares adjustment to generate the official IDS weekly combined station position solution.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    CDDIS Short Name: DORIS_IDS_wkly_pos_prod Version ID: 1 Unique ID: C1544924806-CDDIS

  • Merged Sentinel-3A and Sentinel-3B OLCI Regional Binned Inland Waters (ILW) Data, version 5.0

    https://cmr.earthdata.nasa.gov/search/concepts/C3433948237-OB_CLOUD.xml
    Description:

    The ILW suite provides inland-water extractions for lakes and reservoirs across the contiguous U.S. (CONUS) and Alaska. ILW delivers Rayleigh-corrected surface reflectance (ρs, unitless) and the Cyanobacteria Index (CI_cyano, unitless). The data target for MERIS and OLCI are 15,450 CONUS waterbodies (≥1 full-resolution 300 m OLCI pixel), >2,300 larger resolvable lakes (≥3 pixels), and 5,874 resolvable lakes in Alaska—created in collaboration with the CyAN program to reduce user processing and provide a standardized resource for inland-water algorithm development, validation, and trend analysis. PACE OCI ILW targets 117 CONUS lakes (≥3 pixels) and lakes across Alaska. Geophysical variables in this suite include: ?~@? CI_cyano ?~@~S Cyanobacteria Index, cyanobacteria only (Wynne & Stumpf algorithm, 2013) (sr?~A?¹) ?~@? flags_habs ?~@~S Harmful Algal Bloom flags (unitless / bitmask) ?~@? rhos_λ ?~@~S Surface reflectance at wavelength λ (dimensionless)

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    OB_CLOUD Short Name: MERGED_S3_OLCI_L3b_ILW Version ID: 5.0 Unique ID: C3433948237-OB_CLOUD

  • Merged Sentinel-3A and Sentinel-3B OLCI Regional Mapped CyAN Project, True Color (TC) Data, version 6.0

    https://cmr.earthdata.nasa.gov/search/concepts/C3416412386-OB_CLOUD.xml
    Description:

    CYANTC is the true-color companion to the CyAN Cyanobacteria Index (CI) products. CYANTC is designed for visual context and QA/QC—helping users spot clouds, ice/snow, haze, sunglint, sediment plumes, and other scene features—so they can better interpret coincident CI_cyano maps. Typical use: water-quality managers and researchers overlay CYANTC with CI_cyano to verify scenes, communicate conditions, and create quick-look maps for freshwater HAB monitoring. Geophysical variables in this suite include: • band1 – True Color, Red channel (RGB composite) (dimensionless reflectance / DN-encoded) • band2 – True Color, Green channel (RGB composite) (dimensionless reflectance / DN-encoded) • band3 – True Color, Blue channel (RGB composite) (dimensionless reflectance / DN-encoded)

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    OB_CLOUD Short Name: MERGED_S3_OLCI_L3m_CYANTC Version ID: 6.0 Unique ID: C3416412386-OB_CLOUD

  • Merged Sentinel-3A and Sentinel-3B OLCI Regional Mapped Cyanobacteria Index (CI) Data, version 6.0

    https://cmr.earthdata.nasa.gov/search/concepts/C3416412382-OB_CLOUD.xml
    Description:

    CyAN CI delivers the Cyanobacteria Index for contiguous U.S. (CONUS) and Alaska. The standard product is CI_cyano, which is filtered for cyanobacteria dominated waters only. Products are designed for fast ingest by water-quality managers and researchers monitoring freshwater HABs. The algorithm and processing details are documented in the official release notes. Geophysical variables in this suite include: • band1 – Cyanobacteria Index (DN-encoded) (digital number, unitless)

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    OB_CLOUD Short Name: MERGED_S3_OLCI_L3m_CYAN Version ID: 6.0 Unique ID: C3416412382-OB_CLOUD

  • Merged Sentinel-3A and Sentinel-3B OLCI Regional Mapped Inland Waters (ILW) Data, version 5.0

    https://cmr.earthdata.nasa.gov/search/concepts/C3433948350-OB_CLOUD.xml
    Description:

    The ILW suite provides inland-water extractions for lakes and reservoirs across the contiguous U.S. (CONUS) and Alaska. ILW delivers Rayleigh-corrected surface reflectance (ρs, unitless) and the Cyanobacteria Index (CI_cyano, unitless). The data target for MERIS and OLCI are 15,450 CONUS waterbodies (≥1 full-resolution 300 m OLCI pixel), >2,300 larger resolvable lakes (≥3 pixels), and 5,874 resolvable lakes in Alaska—created in collaboration with the CyAN program to reduce user processing and provide a standardized resource for inland-water algorithm development, validation, and trend analysis. PACE OCI ILW targets 117 CONUS lakes (≥3 pixels) and lakes across Alaska. Geophysical variables in this suite include: ?~@? CI_cyano ?~@~S Cyanobacteria Index, cyanobacteria only (Wynne & Stumpf algorithm, 2013) (sr?~A?¹) ?~@? flags_habs ?~@~S Harmful Algal Bloom flags (unitless / bitmask) ?~@? rhos_λ ?~@~S Surface reflectance at wavelength λ (dimensionless)

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    OB_CLOUD Short Name: MERGED_S3_OLCI_L3m_ILW Version ID: 5.0 Unique ID: C3433948350-OB_CLOUD

  • OLCI+SLSTR/Sentinel-3A L2 Surface Reflectance and Aerosol parameters over Land

    https://cmr.earthdata.nasa.gov/search/concepts/C1685833594-LAADS.xml
    Description:

    The OLCI+SLSTR/Sentinel-3A L2 Surface Reflectance and Aerosol parameters over Land product with shortname S3A_SY_2_SYN, is generated by combining data acquired by the Ocean and Land Colour Instrument (OLCI) and the Sea and Land Surface Temperature Radiometer (SLSTR), on-board SENTINEL-3. The OLCI is a push-broom imaging spectrometer that measures solar radiation reflected by the Earth at a ground spatial resolution of around 300m, over all surfaces, in 21 spectral bands whereas the SLSTR is a dual scan temperature radiometer. The principal objective of SLSTR products is to provide global and regional Sea and Land Surface Temperature (SST, LST) to a very high level of accuracy (better than 0.3 K) for both climatological and meteorological applications. For more information about the instrument and the mission, visit "Sentinel Online" at https://sentinel.esa.int/web/sentinel/home. The S3A_SY_2_SYN is a Level 2 product which consist of surface reflectances for all SYN channels and aerosol parameters over Land. There are 29 Measurement Data Files and 9 Annotation Data Files included in this product. All measurement datasets are provided on the OLCI image grid, similar to the one included in the OLCI L1b product. For more information about the product, read the SENTINEL-3 Synergy User Guide at https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-synergy

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    LAADS Short Name: S3A_SY_2_SYN Version ID: 1 Unique ID: C1685833594-LAADS

  • OLCI/Sentinel-3A L1 Full Resolution Top of Atmosphere Reflectance

    https://cmr.earthdata.nasa.gov/search/concepts/C1286874966-LAADS.xml
    Description:

    The OLCI/Sentinel-3A L1 Full Resolution Top of Atmosphere Reflectance product, S3A_OL_1_EFR is generated from the data aquired by the Ocean and Land Colour Instrument (OLCI) on board European Earth Observation satellite mission, SENTINEL-3. The OLCI is a push-broom imaging spectrometer that measures solar radiation reflected by the Earth at a ground spatial resolution of around 300m, over all surfaces, in 21 spectral bands. OLCI is based on the imaging design of ENVISAT's Medium Resolution Imaging Spectrometer (MERIS). It has a 1270km wide swath. For more information about the instrument and the mission, visit "Sentinel Online" at https://sentinel.esa.int/web/sentinel/home. The S3A_OL_1_EFR is a Level-1B product. This is composed of an information package map, called a manifest, 22 measurement data files, and seven annotation data files. The 21 measurement data files (one for each band) consist of Top Of Atmosphere (TOA) radiances, calibrated to geophysical units (W.m-2. sr-1 Micro meter-1), georeferenced onto the Earth's surface, and spatially resampled onto an evenly spaced grid. Seven annotation files provide information on illumination and observation geometry, environment data (meteorological data) and quality and classification flags. Both measurement data files and annotation data files are written in netCDF 4 format. The manifest file is in XML format and contains metadata associated with the instrument and the processing. The S3A_OL_1_EFR is generated in Earth Observation (EO) processing mode and all parameters in this product are provided for each re-gridded pixel on the product image and for each removed pixel. The OL_1_EFR product package is described below: Element name Description Manifest.safe SENTINEL-SAFE product manifest Oa##_radiance.nc Radiance for OLCI acquisition bands 01 to 21 Removed_pixels.nc Removed pixels information needed for Level-1C generation Time_coordinates.nc Time stamp annotations Geo_coordinates.nc High resolution georeferencing data Quality_flags.nc Classification and quality flags Tie_geo_coordinates.nc Low resolution georeferencing data Tie_geometries.nc Sun and view angles Tie_meteo.nc ECMWF meteorology data Instrument_data.nc Instrument data note: Oa## represents all the OLCI channels (Oa1 to Oa21). For more information about the product, read the SENTINEL-3 OLCI User Guide at https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-olci.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    LAADS Short Name: S3A_OL_1_EFR Version ID: 1 Unique ID: C1286874966-LAADS

  • OLCI/Sentinel-3A L1 Reduced Resolution Top of Atmosphere Reflectance

    https://cmr.earthdata.nasa.gov/search/concepts/C1286876651-LAADS.xml
    Description:

    The OLCI/Sentinel-3A L1 Reduced Resolution Top of Atmosphere Reflectance, S3A_OL_1_ERR is generated from the data aquired by the Ocean and Land Colour Instrument (OLCI) on board European Earth Observation satellite mission, SENTINEL-3. The OLCI is a push-broom imaging spectrometer that measures solar radiation reflected by the Earth at a ground spatial resolution of around 300m, over all surfaces, in 21 spectral bands. OLCI is based on the imaging design of ENVISAT's Medium Resolution Imaging Spectrometer (MERIS). It has a 1270km wide swath. For more information about the instrument and the mission, visit "Sentinel Online" at https://sentinel.esa.int/web/sentinel/home. The S3A_OL_1_ERR is a Level-1B product. This is composed of an information package map, called a manifest, 22 measurement data files, and seven annotation data files. The 21 measurement data files (one for each band) consist of Top Of Atmosphere (TOA) radiances, calibrated to geophysical units (W.m-2. sr-1 Micro meter-1), georeferenced onto the Earth's surface, and spatially resampled onto an evenly spaced grid. Seven annotation files provide information on illumination and observation geometry, environment data (meteorological data) and quality and classification flags. Both measurement data files and annotation data files are written in netCDF 4 format. The manifest file is in XML format and contains metadata associated with the instrument and the processing. The S3A_OL_1_EFR is generated in Earth Observation (EO) processing mode and all parameters in this product are provided for each re-gridded pixel on the product image and for each removed pixel. The OL_1_EFR product package is described below: Element name Description Manifest.safe SENTINEL-SAFE product manifest Oa##_radiance.nc Radiance for OLCI acquisition bands 01 to 21 Time_coordinates.nc Time stamp annotations Geo_coordinates.nc High resolution georeferencing data Quality_flags.nc Classification and quality flags Tie_geo_coordinates.nc Low resolution georeferencing data Tie_geometries.nc Sun and view angles Tie_meteo.nc ECMWF meteorology data Instrument_data.nc Instrument data note: Oa## represents all the OLCI channels (Oa1 to Oa21). For more information about the product, read the SENTINEL-3 OLCI User Guide at https://sentinel.esa.int/web/sentinel/user-guides/sentinel-3-olci

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 90 180

    LAADS Short Name: S3A_OL_1_ERR Version ID: 1 Unique ID: C1286876651-LAADS

  • Sentinel-3 Level 2 Synergy 1 km VEGETATION-Like 10-daily synthesis TOC reflectance and NDVI - V1

    https://cmr.earthdata.nasa.gov/search/concepts/C2655128858-FEDEO.xml
    Description:

    The Sentinel-3, Level 2 Synergy V10 products (SY_2_V10) contain 1 km VEGETATION-like TOC reflectances and NDVI. The '1 km VEGETATION-like product' label means that measurements are provided on a regular latitude-longitude grid, with an equatorial sampling distance of approximately 1 km (1° / 112). The NDVI is provided, derived from surface reflectances in B2 and B3.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -56 -180 75 180

    FEDEO Short Name: urn:eop:VITO:TERRASCOPE_S3_SY_2_V10_V1 Version ID: V1 Unique ID: C2655128858-FEDEO

    This collection does not contain any granules