3 datasets found
  1. E

    Landsat Satellite Coordinates version 3, Narragansett Bay

    • pricaimcit.services.brown.edu
    Updated Jun 11, 2024
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    Rhode Island Data Discovery/United States Geological Survey (2024). Landsat Satellite Coordinates version 3, Narragansett Bay [Dataset]. https://pricaimcit.services.brown.edu/erddap/info/landsat_sst_narrbay_v3_grid/index.html
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    Dataset updated
    Jun 11, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Authors
    Rhode Island Data Discovery/United States Geological Survey
    Variables measured
    X, Y, Latitude, Longitude
    Description

    Translation from x,y coordinates to latitude and longitude for the "Landsat Satellite Surface Temperature v3" dataset. cdm_data_type=Grid comment=Attribute Accuracy Report: Satellite-derived orthorectified brightness temperature was measured within 0.1 degrees C for Landsat 8, 0.6 degrees C for Landsat 7, and 0.5 degrees C for Landsat 5. Satellite measurements were compared to in situ (buoy) surface temperatures from 2003 to 2019, and the bias between the RI DEM buoy temperatures and the satellite temperatures at the pixel of the buoys was removed from each satellite pixel. See https://www.usgs.gov/land-resources/nli/landsat/landsat-surface-reflectance?qt-science_support_page_related_con=0#qt-science_support_page_related_con for more information. Conventions=COARDS, CF-1.6, ACDD-1.3 defaultGraphQuery=Longitude[0:last][0:last][last]&.draw=surface&.vars=X|Y|Longitude history=Converted from Landsat 5, 7, and 8 Surface Reflectance geotiff products to netCDF. The units were changed from K to degrees C and the average bias determined through RI DEM buoy comparison in Narragansett Bay (2003-2019) to each satellite was removed from all scenes from the corresponding satellite. The errors were determined by using a K-fold cross-validation to minimize error at each satellite pixel. The scenes were also cloud masked, land masked, and stripes in Landsat 7 imagery (due to sensor failure) were masked as well. A buoy comparison was only conducted within Narragansett Bay for Landsat scenes with less than 50% cloud cover, and applied to available scenes back to 1984 for Landsat 5, 1999 for Landsat 7, and 2013 for Landsat 8. As a result, data uncertainties are unknown outside of the Narragansett Bay region, for scenes with greater cloud cover, and scenes before 2003. infoUrl=https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/ institution=Rhode Island Data Discovery/United States Geological Survey publication=https://doi.org/10.26300/ja0b-xa86 references=Rhode Island Data Discovery/United States Geological Survey source=https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/ sourceUrl=(local files) standard_name_vocabulary=CF Standard Name Table v55

  2. E

    Landsat Satellite Coordinates version 1

    • pricaimcit.services.brown.edu
    Updated Jun 5, 2021
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    Rhode Island Data Discovery (2021). Landsat Satellite Coordinates version 1 [Dataset]. https://pricaimcit.services.brown.edu/erddap/info/landsat_sst_fc65_afa3_6231/index.html
    Explore at:
    Dataset updated
    Jun 5, 2021
    Dataset provided by
    Rhode Island Data Discovery
    Variables measured
    X, Y, Latitude, Longitude
    Description

    Translation form x,y coordinates to latitude and longitude for the "Landsat Satellite Surface Temperature version 1" dataset. cdm_data_type=Grid comment=Attribute Accuracy Report: Satellite-derived orthorectified brightness temperature was measured within 0.1 degrees C for Landsat 8, 0.6 degrees C for Landsat 7, and 0.5 degrees C for Landsat 5. Satellite measurements were compared to in situ (buoy) surface temperatures from 2003 to 2015, and the mean bias between the RI DEM buoy temperatures and the satellite temperatures at the pixel of the buoys was added to all scenes by satellite. The standard deviation between the buoys and the satellie after adding the bias is 1.9 for Landsat 5, 1.9 for Landsat 7 and 1.3 for Landsat 8. The standard deviation is considered the uncertainty of the satellite measurements. See https://www.usgs.gov/land-resources/nli/landsat/landsat-surface-reflectance?qt-science_support_page_related_con=0#qt-science_support_page_related_con for more information. Conventions=COARDS, CF-1.6, ACDD-1.3 history=Converted from Landsat 5, 7, and 8 Surface Refelectance geotiff products to netCDF. The units were changed from K to degrees C and the average bias determined through RI DEM buoy comparison in Narragansett Bay (2003-2015) to each satellite was added to all scenes from the corresponding satellite. For Landsat 5, 3.36 degrees C was added to all scenes, 3.34 for Landsat 7, and 1.92 for Landsat 8. The errors were determined by calculating the standard deviation of the difference between Landsat and buoy temperature at buoy locations for each satellite. The scenes were also cloud masked, land masked, and stripes in Landsat 7 imagery (due to sensor failure) were masked as well. Data outside of the Narragansett Bay region and for all cloud cover is included, though a buoy comparison was only conducted within Narragansett Bay for Landsat scenes with less than 50% cloud cover. As a result, data uncertainties are unknown outside of the Narragansett Bay region and for scenes with greater cloud cover. infoUrl=https://earthexplorer.usgs.gov institution=United States Geological Survey references=United States Geolocical Survey source=https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/ sourceUrl=(local files) standard_name_vocabulary=CF Standard Name Table v55

  3. E

    Landsat Satellite Coordinates version 2, Narragansett Bay

    • pricaimcit.services.brown.edu
    Updated May 8, 2024
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    Rhode Island Data Discovery/United States Geological Survey (2024). Landsat Satellite Coordinates version 2, Narragansett Bay [Dataset]. https://pricaimcit.services.brown.edu/erddap/info/landsat_sst_narrbay_v2_grid/index.html
    Explore at:
    Dataset updated
    May 8, 2024
    Dataset provided by
    United States Geological Surveyhttp://www.usgs.gov/
    Authors
    Rhode Island Data Discovery/United States Geological Survey
    Area covered
    Narragansett Bay
    Variables measured
    X, Y, Latitude, Longitude
    Description

    Translation from x,y coordinates to latitude and longitude for the "Landsat Satellite Surface Temperature version 2, Narragansett Bay" dataset. cdm_data_type=Grid comment=Attribute Accuracy Report: Satellite-derived orthorectified brightness temperature was measured within 0.1 degrees C for Landsat 8, 0.6 degrees C for Landsat 7, and 0.5 degrees C for Landsat 5. Satellite measurements were compared to in situ (buoy) surface temperatures from 2003 to 2022, and the mean bias between the RI DEM buoy temperatures and the satellite temperatures at the pixel of the buoys was added to or subtrcted from all scenes by satellite. The standard deviation between the buoys and the satellite after adding the bias is 1.9 degrees C for Landsat 5, 1.9 degrees C for Landsat 7 and 1.3 degrees C for Landsat 8. The standard deviation is considered the uncertainty of the satellite measurements. See https://www.usgs.gov/land-resources/nli/landsat/landsat-surface-reflectance?qt-science_support_page_related_con=0#qt-science_support_page_related_con for more information. Conventions=COARDS, CF-1.6, ACDD-1.3 defaultGraphQuery=Longitude[0:last][0:last][last]&.draw=surface&.vars=X|Y|Longitude history=Converted from Landsat 5, 7, and 8 Surface Reflectance geotiff products to netCDF. The units were changed from K to degrees C and the average bias determined through RI DEM buoy comparison in Narragansett Bay (2003-2022) to each satellite was added to or subtracted from all scenes from the corresponding satellite. For Landsat 5, 0.45 degrees C was subtracted from all scenes; similarly 1.094 was subtracted for Landsat 7, and 0.178 was added for Landsat 8. The errors were determined by averaging the five closest temporal buoy readings for each satellite image capture and spatially averaging buoy locations within a 200-square-meter zone. The scenes were also cloud masked, land masked, and stripes in Landsat 7 imagery (due to sensor failure) were masked as well. A buoy comparison was only conducted within Narragansett Bay for Landsat scenes with less than 50% cloud cover, and applied to available scenes back to 1984 for Landsat 5, 1999 for Landsat 7, and 2013 for Landsat 8. As a result, data uncertainties are unknown outside of the Narragansett Bay region, for scenes with greater cloud cover, and scenes before 2003. infoUrl=https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/ institution=Rhode Island Data Discovery/United States Geological Survey publication=https://doi.org/10.26300/ja0b-xa86 references=Rhode Island Data Discovery/United States Geological Survey source=https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/ sourceUrl=(local files) standard_name_vocabulary=CF Standard Name Table v55

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Rhode Island Data Discovery/United States Geological Survey (2024). Landsat Satellite Coordinates version 3, Narragansett Bay [Dataset]. https://pricaimcit.services.brown.edu/erddap/info/landsat_sst_narrbay_v3_grid/index.html

Landsat Satellite Coordinates version 3, Narragansett Bay

Explore at:
Dataset updated
Jun 11, 2024
Dataset provided by
United States Geological Surveyhttp://www.usgs.gov/
Authors
Rhode Island Data Discovery/United States Geological Survey
Variables measured
X, Y, Latitude, Longitude
Description

Translation from x,y coordinates to latitude and longitude for the "Landsat Satellite Surface Temperature v3" dataset. cdm_data_type=Grid comment=Attribute Accuracy Report: Satellite-derived orthorectified brightness temperature was measured within 0.1 degrees C for Landsat 8, 0.6 degrees C for Landsat 7, and 0.5 degrees C for Landsat 5. Satellite measurements were compared to in situ (buoy) surface temperatures from 2003 to 2019, and the bias between the RI DEM buoy temperatures and the satellite temperatures at the pixel of the buoys was removed from each satellite pixel. See https://www.usgs.gov/land-resources/nli/landsat/landsat-surface-reflectance?qt-science_support_page_related_con=0#qt-science_support_page_related_con for more information. Conventions=COARDS, CF-1.6, ACDD-1.3 defaultGraphQuery=Longitude[0:last][0:last][last]&.draw=surface&.vars=X|Y|Longitude history=Converted from Landsat 5, 7, and 8 Surface Reflectance geotiff products to netCDF. The units were changed from K to degrees C and the average bias determined through RI DEM buoy comparison in Narragansett Bay (2003-2019) to each satellite was removed from all scenes from the corresponding satellite. The errors were determined by using a K-fold cross-validation to minimize error at each satellite pixel. The scenes were also cloud masked, land masked, and stripes in Landsat 7 imagery (due to sensor failure) were masked as well. A buoy comparison was only conducted within Narragansett Bay for Landsat scenes with less than 50% cloud cover, and applied to available scenes back to 1984 for Landsat 5, 1999 for Landsat 7, and 2013 for Landsat 8. As a result, data uncertainties are unknown outside of the Narragansett Bay region, for scenes with greater cloud cover, and scenes before 2003. infoUrl=https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/ institution=Rhode Island Data Discovery/United States Geological Survey publication=https://doi.org/10.26300/ja0b-xa86 references=Rhode Island Data Discovery/United States Geological Survey source=https://earthexplorer.usgs.gov/ accessed through https://code.earthengine.google.com/ sourceUrl=(local files) standard_name_vocabulary=CF Standard Name Table v55

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