Description
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.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| GeoExplorer | Unknown | This URL provides a viewer for this dataset. | Open resource |
| GeoServer | Unknown | This URL provides access to this dataset via GeoServer, which offers multiple output formats and an OpenLayers viewer. | Open resource |
| OGC-WFS | 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). | Open resource |
| OGC-WMS | 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. | Open resource |
| OGC-WMS-C | WMS | Open Geospatial Consortium Web Map Service - Cached (WMS-C). Use of WMS-C is similar to traditional WMS but with the addition of the "tiled=true" parameter, which triggers GeoServer to pull map tiles from GeoWebCache if they have been previously generated. This can dramatically improve performance, especially for larger datasets. Supported map formats include JPEG and PNG. Supported info formats include GeoJSON, GML, HTML, and plain text. | Open resource |
| Web Resource | Lotus Organizer | Open resource | |
| Web Resource | Lotus Organizer | Open resource | |
| Web Resource | Lotus Organizer | Open resource | |
| Web Resource | Lotus Organizer | Open resource | |
| Web Resource | Lotus Organizer | Open resource | |
| Web Resource | Lotus Organizer | Open resource | |
| Web Resource | Lotus Organizer | Open resource | |
| PacIOOS: American Samoa Sea Level Rise Viewer | Unknown | This URL provides a viewer and/or data access for this dataset. | Open resource |
| PacIOOS: American Samoa Sea Level Rise Viewer | Unknown | This URL provides a viewer and/or data access for this dataset. | Open resource |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| GeoServer | Unknown | This URL provides access to this dataset via GeoServer, which offers multiple output formats and an OpenLayers viewer. | Open resource |
| OGC-WFS | 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). | Open resource |
| OGC-WMS | 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. | Open resource |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | richard.d.ray | Open resource |
| Web Resource | Unknown | richard.d.ray | Open resource |
| Web Resource | Unknown | Open resource |