OpenSearch

Using the NASA EOSDIS Common Metadata Repository

Collection Search

  • ABoVE: Ecosystem Map, Great Slave Lake Area, Northwest Territories, Canada, 1997-2011

    https://cmr.earthdata.nasa.gov/search/concepts/C2143402730-ORNL_CLOUD.xml
    Description:

    This dataset provides an ecosystem type map at 12.5 meter pixel spacing and 0.2 ha minimum mapping unit for the area surrounding Great Slave Lake, Northwest Territories, Canada for the time period 1997 to 2011. The map includes nine classes for peatland, wetland, and upland areas derived from a Random Forest classification trained on multi-date, multi-sensor remote sensing images across the study extent, and using field data and high-resolution Worldview-2 image interpretation for training and validation. The nine classes are: Water, Marsh, Swamp, Open Fen, Treed Fen, Bog, Upland Deciduous, Upland Conifer, and Sparsely Vegetated. A tenth map class identifies areas of historical fires (prior to 2011) that are currently undergoing post-fire successional revegetation. This dataset provides an ecosystem type map of the area before the large fire season of 2014 to better understand the effects of fires in the area.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 58.5141 -123.036 65.1494 -109.463

    ORNL_CLOUD Short Name: Great_Slave_Lake_Ecosystem_Map_1695 Version ID: 1 Unique ID: C2143402730-ORNL_CLOUD

  • ABoVE: SAR-based Methane Ebullition Flux from Lakes, Five Regions, Alaska, 2007-2010

    https://cmr.earthdata.nasa.gov/search/concepts/C2143401901-ORNL_CLOUD.xml
    Description:

    This dataset provides Synthetic Aperture Radar (SAR) estimates of lake-source methane ebullition flux in mg CH4/m2/d for thousands of lakes in five regions across Alaska. The study regions include the Atqasuk, Barrow Peninsula, Fairbanks, northern Seward Peninsula, and Toolik. L-band SAR backscatter values for early winter lake ice scenes were collected from 2007 to 2010 over 5,143 lakes using the Phased Array type L-band Synthetic Aperture Radar (PALSAR) instrument on the Advanced Land Observing Satellite (ALOS-1) satellite. The backscatter data were combined with field measurements of methane ebullition from 48 study lakes across the five regions to obtain a volumetric flux estimate for each lake. Mean methane gas-fractions from each region were applied to the SAR-based volumetric fluxes to obtain an estimate of methane ebullition mass flux per lake. The data files contain lake perimeters and the lake-specific attributes of lake area, SAR backscatter values and standard errors, volumetric flux with standard errors, mean percent of methane from gas samples, and methane ebullition mass flux.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 64.444 -165.169 71.3543 -147.365

    ORNL_CLOUD Short Name: SAR_Methane_Ebullition_AK_1790 Version ID: 1 Unique ID: C2143401901-ORNL_CLOUD

  • ABoVE: Wetland Type, Slave River and Peace-Athabasca Deltas, Canada, 2007 and 2017

    https://cmr.earthdata.nasa.gov/search/concepts/C2240727799-ORNL_CLOUD.xml
    Description:

    This dataset provides ecosystem-types for the Slave River Delta (SRD) and Peace-Athabasca Delta (PAD), Canada, for the time periods circa 2007 and circa 2017. The image resolution is 12.5 m with 0.2-hectare minimum mapping unit. Included are an 18-class modified Enhanced Wetland Classification (EWC) scheme for wetland, peatland, and upland areas. Classes were derived from a Random Forest classification trained on multi-seasonal moderate-resolution images and synthetic aperture radar (SAR) imagery sourced from aerial and satellite sensors, field data, and calculated indices. Indices included Height Above Nearest Drainage (HAND) and Topographic Position Index (TPI), both derived from a digital elevation model, to differentiate between land cover types. The c. 2007 remote sensing data were comprised of early and late growing season Landsat-5, ERS2, L-Band PALSAR from 2006 to 2010 and growing season Landsat thermal composites. The c. 2017 remote sensing data were comprised of early and late growing season Landsat-8 and L-Band PALSAR-2 from 2017 to 2019, Sentinel-1 June VV and VH mean and standard deviations, and growing season Landsat thermal composites. Elevation indices from multi-resolution TPI and HAND were created from the Japan Aerospace Exploration Agency Advanced Land Observing Satellite 30 m Global Spatial Data Model. Also included are the images used for classification and the classification error matrices for each map and time period. Data are provided in GeoTIFF and GeoPackage file formats.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: 57.7746 -115.291 61.7919 -109.643

    ORNL_CLOUD Short Name: Ecosystem_Map_SRD_PAD_1947 Version ID: 1 Unique ID: C2240727799-ORNL_CLOUD

  • ALOS AVNIR-2 L1C

    https://cmr.earthdata.nasa.gov/search/concepts/C2119689548-ESA.xml
    Description:

    This collection is providing access to the ALOS-1 AVNIR-2 (Advanced Visible and Near Infrared Radiometer type 2) L1C data acquired by ESA stations in the ADEN zone plus some worldwide data requested by European scientists. The ADEN zone (https://earth.esa.int/eogateway/documents/20142/37627/ALOS-ADEN-Zone.pdf) was the area belonging to the European Data node and covered both the European and the African continents, large part of the Greenland and the Middle East. The full mission is covered, obviously with gaps outside to the ADEN zone: • Time windows: from 2006-04-28 to 2011-04-20 • Orbits: from 1375 to 27898 • Path (corresponds to JAXA track number): from 1 to 670 • Row (corresponds to JAXA scene centre frame number): from 370 to 5230 One single Level 1C product types is offered for the OBS instrument mode: AV2_OBS_1C. The Level 1C product is a multispectral image (three bands in VIS and one in NIR) in GEOTIFF format with 10 m resolution.

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

    ESA Short Name: ALOS.AVNIR-2.L1C Version ID: 7.0 Unique ID: C2119689548-ESA

  • ALOS Images(ROSCOSMOS)

    https://cmr.earthdata.nasa.gov/search/concepts/C1965336815-ESA.xml
    Description:

    This collection provides access to images archived at ROSCOSMOS for ALOS mission.

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

    ESA Short Name: ALOS Version ID: NA Unique ID: C1965336815-ESA

  • ALOS PALSAR High Resolution Radiometric Terrain Corrected Product

    https://cmr.earthdata.nasa.gov/search/concepts/C1206487504-ASF.xml
    Description:

    PALSAR_Radiometric_Terrain_Corrected_high_res

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

    ASF Short Name: ALOS_PSR_RTC_HIGH Version ID: 1 Unique ID: C1206487504-ASF

  • ALOS PALSAR International Polar Year Antarctica

    https://cmr.earthdata.nasa.gov/search/concepts/C1965336817-ESA.xml
    Description:

    International Polar Year (IPY), focusing on the north and south polar regions, aimed to investigate the impact of how changes to the ice sheets affect ocean and climate change to the habitats in these regions. IPY was a collaborative project involving over sixty countries for two years from March 2007 to March 2009. To meet the project goal, world space agencies observed these regions intensively using their own Earth observation satellites. One of these satellites, ALOS - with the PALSAR (Phased Array type L-band Synthetic Aperture Radar) sensor - observed these regions independently from day-night conditions or weather conditions. Carrying on this initiative, ESA is providing the ALOS PALSAR IPY Antarctica dataset, which consists of full resolution ALOS PALSAR ScanSAR WB1 products (100m spatial resolution) over Antarctica from July 2008 (cycle 21) to December 2008 (Cycle 24) and from May 2009 (cycle 27) to March 2010 (cycle 31). Missing products between the two periods above is due to L0 data over Antarctica not being available in ADEN archives and not processed to L1. Spatial coverage: Check the spatial coverage of the collection on a _$$map$$ https://alos-ds.eo.esa.int/smcat/ALOSIPY/ available on the Third Party Missions Dissemination Service.

    Links: Temporal Extent: Spatial Extent:
    Minimum Bounding Rectangle: -90 -180 -50 180

    ESA Short Name: ALOSIPY Version ID: 9.0 Unique ID: C1965336817-ESA

  • ALOS PALSAR Level 1.0 Product

    https://cmr.earthdata.nasa.gov/search/concepts/C1206485320-ASF.xml
    Description:

    ALOS PALSAR Level 1.0

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

    ASF Short Name: ALOS_PSR_L1.0 Version ID: 1 Unique ID: C1206485320-ASF

  • ALOS PALSAR Level 1.1 Product

    https://cmr.earthdata.nasa.gov/search/concepts/C1206485527-ASF.xml
    Description:

    ALOS PALSAR Level 1.1

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

    ASF Short Name: ALOS_PSR_L1.1 Version ID: 1 Unique ID: C1206485527-ASF

  • ALOS PALSAR Level 1.5 Product

    https://cmr.earthdata.nasa.gov/search/concepts/C1206485940-ASF.xml
    Description:

    ALOS PALSAR Level 1.5

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

    ASF Short Name: ALOS_PSR_L1.5 Version ID: 1 Unique ID: C1206485940-ASF