Vertical Land Motion - Tutuila and Aunuu, American Samoa
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.
Data and Resources
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OGC-WFS
WFS
Open Geospatial Consortium Web Feature Service (WFS). Supported WFS versions...
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OGC-WMS
WMS
Open Geospatial Consortium Web Map Service (WMS). Supported WMS versions...
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GeoServer
This URL provides access to this dataset via GeoServer, which offers multiple...
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GeoExplorer
This URL provides a viewer for this dataset.
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PacIOOS: American Samoa Sea Level Rise Viewer
This URL provides a viewer and/or data access for this dataset.
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OGC-WMS-C
WMS
Open Geospatial Consortium Web Map Service - Cached (WMS-C). Use of WMS-C is...
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ISO-19139 (Local) Metadata
The XML content as stored locally by CKAN
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ISO-19139 (IOOS Registry)
The XML content as published by the IOOS Registry
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Online Access |
OGC:WFS (OGC Web Feature Service) These data are available for access with an OGC WFS compatible client OGC:WMS (OGC Web Map Service) These data are available for access with an OGC WMS compatible client
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Distributor | NASA Goddard Space Flight Center (GSFC) |
Point of Contact |
Stacey A. Huang NASA Goddard Space Flight Center (GSFC) stacey.a.huang@nasa.gov Online Resource |
Originator |
Stacey A. Huang NASA Goddard Space Flight Center (GSFC) stacey.a.huang@nasa.gov Online Resource |
Originator |
Jeanne M. Sauber NASA Goddard Space Flight Center (GSFC) jeanne.m.sauber-rosenberg@nasa.gov Online Resource |
Originator |
Richard Ray NASA Goddard Space Flight Center (GSFC) richard.d.ray@nasa.gov Online Resource |
Publisher |
Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org Online Resource |
Dataset Point of Contact |
Pacific Islands Ocean Observing System (PacIOOS) info@pacioos.org |
General Documentation | |
Associated Documentation |
Pacific Islands Ocean Observing System (PacIOOS)
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Date(s) |
creation:
2022-11-23
issued: 2022-11-23 revision: 2022-11-23 creation: 2022-11-23 issued: 2022-11-23 revision: 2022-11-23 creation: 2022-11-23 issued: 2022-11-23 revision: 2022-11-23 creation: 2022-11-23 issued: 2022-11-23 revision: 2022-11-23 |
Purpose | 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. |
Use Limitations |
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.
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Spatial Bounding Box Coordinates | N: -14.23069444785° S: -14.37347222677° E: -170.55930555543° W: -170.84736111329° |
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GCMD Science Keywords
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GCMD Data Center Keywords
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GCMD Location Keywords
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GCMD Project Keywords
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Use Constraints |
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.
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Lineage Statement | 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. |
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CF related |