as_nasa_tutma_vlm eng UTF8 dataset service Stacey A. Huang NASA Goddard Space Flight Center (GSFC) stacey.a.huang@nasa.gov https://ael.gsfc.nasa.gov/sci/bio/stacey.a.huang 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 row area Vertical Land Motion - Tutuila and Aunuu, American Samoa 2022-11-23 creation 2022-11-23 issued 2022-11-23 revision org.pacioos as_nasa_tutma_vlm Stacey A. Huang NASA Goddard Space Flight Center (GSFC) stacey.a.huang@nasa.gov https://ael.gsfc.nasa.gov/sci/bio/stacey.a.huang http web browser information originator Jeanne M. Sauber NASA Goddard Space Flight Center (GSFC) jeanne.m.sauber-rosenberg@nasa.gov https://science.gsfc.nasa.gov/earth/hydrology/bio/jeanne.m.sauber-rosenberg http web browser information originator Richard Ray NASA Goddard Space Flight Center (GSFC) richard.d.ray@nasa.gov https://science.gsfc.nasa.gov/sci/bio/richard.d.ray http web browser information originator Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org http://pacioos.org http web browser information publisher Related publication: Huang, S.A., J.M. Sauber, and R. Ray. 2022. Mapping vertical land motion in challenging terrain: Six-year trends on Tutuila Island, American Samoa, with PS-InSAR, GPS, tide gauge, and satellite altimetry data. Geophysical Research Letters, 49, e2022GL101363. https://doi.org/10.1029/2022GL101363. Land subsidence rates across Tutuila and Aunuu are drawn from recent work by Huang et al. (2022) showing that the average rate of subsidence on these islands is spatially variable and ranges from 6 to 9 mm/yr. The study analyzed all available radar data from the European Space Agency (ESA) Sentinel-1 satellite, which covers Tutuila and Aunuu only, and derived an average subsidence rate for the 6-year period between September 2015 to December 2022. Data are available over areas where radar data was successfully used to retrieve unambiguous measurements. Vertical land motion (VLM) measurements are provided by this data layer in millimeters per year (mm/yr), with negative values indicating land subsidence. PacIOOS provides timely, reliable, and accurate ocean information to support a safe, clean, productive ocean and resilient coastal zone in the U.S. Pacific Islands region. The Pacific Islands Ocean Observing System (PacIOOS) is funded through the National Oceanic and Atmospheric Administration (NOAA) as a Regional Association within the U.S. Integrated Ocean Observing System (IOOS). PacIOOS is coordinated by the University of Hawaii School of Ocean and Earth Science and Technology (SOEST). Stacey A. Huang NASA Goddard Space Flight Center (GSFC) stacey.a.huang@nasa.gov https://ael.gsfc.nasa.gov/sci/bio/stacey.a.huang http web browser information pointOfContact http://pacioos.org/metadata/browse/as_nasa_tutma_vlm.png Sample image. Earth Science > Human Dimensions > Natural Hazards > Land Subsidence Earth Science > Land Surface > Geomorphic Landforms/Processes > Coastal Processes > Subsidence Earth Science > Solid Earth > Geomorphic Landforms/Processes > Coastal Processes > Subsidence theme GCMD Science Keywords Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Aunuu 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 elevation 1 -170.84736111329 -170.55930555543 -14.37347222677 -14.23069444785 Vertical Land Motion - Tutuila and Aunuu, American Samoa 2022-11-23 creation 2022-11-23 issued 2022-11-23 revision Stacey A. Huang NASA Goddard Space Flight Center (GSFC) stacey.a.huang@nasa.gov https://ael.gsfc.nasa.gov/sci/bio/stacey.a.huang http web browser information originator Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org http://pacioos.org http web browser information publisher Land subsidence rates across Tutuila and Aunuu are drawn from recent work by Huang et al. (2022) showing that the average rate of subsidence on these islands is spatially variable and ranges from 6 to 9 mm/yr. The study analyzed all available radar data from the European Space Agency (ESA) Sentinel-1 satellite, which covers Tutuila and Aunuu only, and derived an average subsidence rate for the 6-year period between September 2015 to December 2022. Data are available over areas where radar data was successfully used to retrieve unambiguous measurements. Vertical land motion (VLM) measurements are provided by this data layer in millimeters per year (mm/yr), with negative values indicating land subsidence. Open Geospatial Consortium Web Feature Service (WFS) 1 -170.84736111329 -170.55930555543 -14.37347222677 -14.23069444785 tight GetCapabilities https://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_nasa_tutma_vlm/ows?service=WFS&version=1.0.0&request=GetCapabilities OGC:WFS OGC-WFS Open Geospatial Consortium Web Feature Service (WFS). Supported WFS versions include 1.0.0, 1.1.0, and 2.0.0. Supported output formats include CSV, GeoJSON, GeoJSON-P, GML, KML, and Shapefile (Zipped). download Vertical Land Motion - Tutuila and Aunuu, American Samoa 2022-11-23 creation 2022-11-23 issued 2022-11-23 revision Stacey A. Huang NASA Goddard Space Flight Center (GSFC) stacey.a.huang@nasa.gov https://ael.gsfc.nasa.gov/sci/bio/stacey.a.huang http web browser information originator Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org http://pacioos.org http web browser information publisher Land subsidence rates across Tutuila and Aunuu are drawn from recent work by Huang et al. (2022) showing that the average rate of subsidence on these islands is spatially variable and ranges from 6 to 9 mm/yr. The study analyzed all available radar data from the European Space Agency (ESA) Sentinel-1 satellite, which covers Tutuila and Aunuu only, and derived an average subsidence rate for the 6-year period between September 2015 to December 2022. Data are available over areas where radar data was successfully used to retrieve unambiguous measurements. Vertical land motion (VLM) measurements are provided by this data layer in millimeters per year (mm/yr), with negative values indicating land subsidence. Open Geospatial Consortium Web Map Service (WMS) 1 -170.84736111329 -170.55930555543 -14.37347222677 -14.23069444785 tight GetCapabilities https://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_nasa_tutma_vlm/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 geom gml:MultiSurfacePropertyType vlm_mmyr double Vertical land motion (VLM) in millimeters per year (mm/yr). Negative values indicate land subsidence. 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, which offers multiple output formats and an OpenLayers viewer. download http://pacioos.org/shoreline/slr-amsam/ http PacIOOS: American Samoa Sea Level Rise Viewer This URL provides a viewer and/or data access for this dataset. download dataset 2022-11-23T00:00:00Z Data first published as part of Geophysical Research Letters publication https://doi.org/10.1029/2022GL101363. 2023-11-27T00:00:00Z Data published in PacIOOS GeoServer for use by the American Samoa Sea Level Rise Viewer. This record was translated and enhanced from GeoServer OGC Web Services (OWS) using PacIOOS software.