as_noaa_all_turb_std eng UTF8 dataset service NOAA Pacific Islands Fisheries Science Center (PIFSC) pifsc.info@noaa.gov https://www.fisheries.noaa.gov/about/pacific-islands-fisheries-science-center http web browser information pointOfContact 2024-11-14 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 2 column 770 0.004557078915836901 row 867 0.004557078915836901 area Turbidity (Kd490) Standard Deviation of Long-term Mean, 1998-2018 - American Samoa 2021-09-07 creation 2021-09-07 issued 2021-09-07 revision org.pacioos as_noaa_all_turb_std NOAA Pacific Islands Fisheries Science Center (PIFSC) pifsc.info@noaa.gov https://www.fisheries.noaa.gov/about/pacific-islands-fisheries-science-center http web browser information originator NOAA Coral Reef Conservation Program (CRCP) coralreef@noaa.gov https://coralreef.noaa.gov http web browser information originator European Space Agency (ESA) Climate Change Initiative (CCI) climate.office@esa.int https://climate.esa.int http web browser information resourceProvider Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org http://pacioos.org http web browser information publisher Related publication: Gove JM, Williams GJ, McManus MA, Heron SF, Sandin SA, et al. (2013) Quantifying climatological ranges and anomalies for Pacific coral reef ecosystems. PLOS ONE 8(4): e61974. https://doi.org/10.1371/journal.pone.0061974. Spectrally resolved water-leaving radiances (ocean color) and inferred chlorophyll concentration are key to studying phytoplankton dynamics at seasonal and inter-annual scales, for a better understanding of the role of phytoplankton in marine biogeochemistry; the global carbon cycle; and the response of marine ecosystems to climate variability, change, and feedback processes. Ocean color data also have a critical role in operational observation systems monitoring coastal eutrophication, harmful algal blooms, and sediment plumes. The contiguous ocean color record reached 21 years in 2018. However, it is comprised of a number of one-off missions such that creating a consistent time series of ocean color data requires merging of the individual sensors without introducing artifacts. The diffuse attenuation coefficient at 490 nm (Kd490) indicates the turbidity of the water column: i.e., how well visible light in the blue to green region of the spectrum penetrates the water column. The value of Kd490 represents the rate at which light at 490 nm is attenuated with depth. For example, a Kd490 of 0.1 per meter means that light intensity is reduced by one natural log within 10 meters of water. Thus, for a Kd490 of 0.1, one attenuation length is 10 meters. Higher Kd490 values mean shallower attenuation depths and thus higher turbidity, or lower clarity, of ocean water. This layer represents the standard deviation of the 8-day time series of Kd490 (m-1) from 1998-2018. Data products generated by the Ocean Colour component of the European Space Agency (ESA) Climate Change Initiative (CCI) project. These files are 8-day 4-km composites of merged sensor products: Global Area Coverage (GAC), Local Area Coverage (LAC), MEdium Resolution Imaging Spectrometer (MERIS), Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua, Ocean and Land Colour Instrument (OLCI), Sea-viewing Wide Field-of-view Sensor (SeaWiFS), and Visible Infrared Imaging Radiometer Suite (VIIRS). The standard deviation was calculated over all 8-day Kd490 data from 1998-2018 for each pixel. A quality control mask was applied to remove spurious data associated with shallow water, following Gove et al., 2013. Nearshore map pixels with no data were filled with values from the nearest neighboring valid offshore pixel by using a grid of points and the Near Analysis tool in ArcGIS then converting points to raster. Data source: https://oceanwatch.pifsc.noaa.gov/erddap/griddap/esa-cci-kd-8d-v5-0.graph These layers were developed as part of a geospatial database of key anthropogenic and environmental pressures to coastal waters of American Samoa. Please acknowledge the Ecosystem Sciences Division of the NOAA Pacific Islands Fisheries Science Center, Honolulu, Hawaii. NOAA Pacific Islands Fisheries Science Center (PIFSC) pifsc.info@noaa.gov https://www.fisheries.noaa.gov/about/pacific-islands-fisheries-science-center http web browser information pointOfContact http://pacioos.org/metadata/browse/as_noaa_all_turb_std.png Sample image. Earth Science > Biosphere > Aquatic Ecosystems > Reef Habitat Earth Science > Biosphere > Ecosystems > Marine Ecosystems > Reef > Coral Reef Earth Science > Human Dimensions > Human Settlements > Coastal Areas Earth Science > Oceans > Coastal Processes > Coral Reefs Earth Science > Oceans > Ocean Optics > Turbidity > > > Kd490 Earth Science > Oceans > Water Quality theme GCMD Science Keywords Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Manua Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Ofu Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Olosega Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Rose Atoll Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Swains Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Tau Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Tutuila place GCMD Location Keywords PacIOOS > Pacific Islands Ocean Observing System project GCMD Project Keywords PacIOOS > Pacific Islands Ocean Observing System dataCenter GCMD Data Center Keywords The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information. Pacific Islands Ocean Observing System (PacIOOS) largerWorkCitation project eng environment oceans 1 -171.33852794082935 -167.8250200967191 -14.732036252835169 -10.776491753888738 Turbidity (Kd490) Standard Deviation of Long-term Mean, 1998-2018 - American Samoa 2021-09-07 creation 2021-09-07 issued 2021-09-07 revision NOAA Pacific Islands Fisheries Science Center (PIFSC) pifsc.info@noaa.gov https://www.fisheries.noaa.gov/about/pacific-islands-fisheries-science-center http web browser information originator Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org http://pacioos.org http web browser information publisher Spectrally resolved water-leaving radiances (ocean color) and inferred chlorophyll concentration are key to studying phytoplankton dynamics at seasonal and inter-annual scales, for a better understanding of the role of phytoplankton in marine biogeochemistry; the global carbon cycle; and the response of marine ecosystems to climate variability, change, and feedback processes. Ocean color data also have a critical role in operational observation systems monitoring coastal eutrophication, harmful algal blooms, and sediment plumes. The contiguous ocean color record reached 21 years in 2018. However, it is comprised of a number of one-off missions such that creating a consistent time series of ocean color data requires merging of the individual sensors without introducing artifacts. The diffuse attenuation coefficient at 490 nm (Kd490) indicates the turbidity of the water column: i.e., how well visible light in the blue to green region of the spectrum penetrates the water column. The value of Kd490 represents the rate at which light at 490 nm is attenuated with depth. For example, a Kd490 of 0.1 per meter means that light intensity is reduced by one natural log within 10 meters of water. Thus, for a Kd490 of 0.1, one attenuation length is 10 meters. Higher Kd490 values mean shallower attenuation depths and thus higher turbidity, or lower clarity, of ocean water. This layer represents the standard deviation of the 8-day time series of Kd490 (m-1) from 1998-2018. Data products generated by the Ocean Colour component of the European Space Agency (ESA) Climate Change Initiative (CCI) project. These files are 8-day 4-km composites of merged sensor products: Global Area Coverage (GAC), Local Area Coverage (LAC), MEdium Resolution Imaging Spectrometer (MERIS), Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua, Ocean and Land Colour Instrument (OLCI), Sea-viewing Wide Field-of-view Sensor (SeaWiFS), and Visible Infrared Imaging Radiometer Suite (VIIRS). The standard deviation was calculated over all 8-day Kd490 data from 1998-2018 for each pixel. A quality control mask was applied to remove spurious data associated with shallow water, following Gove et al., 2013. Nearshore map pixels with no data were filled with values from the nearest neighboring valid offshore pixel by using a grid of points and the Near Analysis tool in ArcGIS then converting points to raster. Data source: https://oceanwatch.pifsc.noaa.gov/erddap/griddap/esa-cci-kd-8d-v5-0.graph Open Geospatial Consortium Web Coverage Service (WCS) 1 -171.33852794082935 -167.8250200967191 -14.732036252835169 -10.776491753888738 tight GetCapabilities https://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_noaa_all_turb_std/ows?service=WCS&version=1.0.0&request=GetCapabilities OGC:WCS OGC-WCS Open Geospatial Consortium Web Coverage Service (WCS). Supported WCS versions include 1.0.0, 1.1.0, and 1.1.1. Supported output formats include GeoTIFF, GIF, JPEG, PNG, or TIFF. download Turbidity (Kd490) Standard Deviation of Long-term Mean, 1998-2018 - American Samoa 2021-09-07 creation 2021-09-07 issued 2021-09-07 revision NOAA Pacific Islands Fisheries Science Center (PIFSC) pifsc.info@noaa.gov https://www.fisheries.noaa.gov/about/pacific-islands-fisheries-science-center http web browser information originator Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org http://pacioos.org http web browser information publisher Spectrally resolved water-leaving radiances (ocean color) and inferred chlorophyll concentration are key to studying phytoplankton dynamics at seasonal and inter-annual scales, for a better understanding of the role of phytoplankton in marine biogeochemistry; the global carbon cycle; and the response of marine ecosystems to climate variability, change, and feedback processes. Ocean color data also have a critical role in operational observation systems monitoring coastal eutrophication, harmful algal blooms, and sediment plumes. The contiguous ocean color record reached 21 years in 2018. However, it is comprised of a number of one-off missions such that creating a consistent time series of ocean color data requires merging of the individual sensors without introducing artifacts. The diffuse attenuation coefficient at 490 nm (Kd490) indicates the turbidity of the water column: i.e., how well visible light in the blue to green region of the spectrum penetrates the water column. The value of Kd490 represents the rate at which light at 490 nm is attenuated with depth. For example, a Kd490 of 0.1 per meter means that light intensity is reduced by one natural log within 10 meters of water. Thus, for a Kd490 of 0.1, one attenuation length is 10 meters. Higher Kd490 values mean shallower attenuation depths and thus higher turbidity, or lower clarity, of ocean water. This layer represents the standard deviation of the 8-day time series of Kd490 (m-1) from 1998-2018. Data products generated by the Ocean Colour component of the European Space Agency (ESA) Climate Change Initiative (CCI) project. These files are 8-day 4-km composites of merged sensor products: Global Area Coverage (GAC), Local Area Coverage (LAC), MEdium Resolution Imaging Spectrometer (MERIS), Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua, Ocean and Land Colour Instrument (OLCI), Sea-viewing Wide Field-of-view Sensor (SeaWiFS), and Visible Infrared Imaging Radiometer Suite (VIIRS). The standard deviation was calculated over all 8-day Kd490 data from 1998-2018 for each pixel. A quality control mask was applied to remove spurious data associated with shallow water, following Gove et al., 2013. Nearshore map pixels with no data were filled with values from the nearest neighboring valid offshore pixel by using a grid of points and the Near Analysis tool in ArcGIS then converting points to raster. Data source: https://oceanwatch.pifsc.noaa.gov/erddap/griddap/esa-cci-kd-8d-v5-0.graph Open Geospatial Consortium Web Map Service (WMS) 1 -171.33852794082935 -167.8250200967191 -14.732036252835169 -10.776491753888738 tight GetCapabilities https://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_noaa_all_turb_std/ows?service=WMS&version=1.3.0&request=GetCapabilities OGC:WMS OGC-WMS Open Geospatial Consortium Web Map Service (WMS). Supported WMS versions include 1.1.1 and 1.3.0. Supported map formats include AtomPub, GeoRSS, GeoTIFF, GIF, JPEG, KML/KMZ, PDF, PNG, SVG, and TIFF. Supported info formats include GeoJSON, GeoJSON-P, GML, HTML, and plain text. download Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org http://pacioos.org http web browser information publisher https://geo.pacioos.hawaii.edu/geoserver/ http GeoServer This URL provides access to this dataset via GeoServer, including multiple output formats and an OpenLayers viewer. download http://pacioos.org/projects/coral-drivers-amsam/ http PacIOOS: American Samoa Coral Reef Drivers This URL provides a viewer and/or data access for this dataset. download dataset 2021-09-07T00:00:00Z OGC web services (WMS and WFS) enabled by PacIOOS via GeoServer. Original data from source provider may have been reformatted, reprojected, or adjusted in other ways to optimize these capabilities. This record was translated and enhanced from GeoServer OGC Web Services (OWS) using PacIOOS software.