Hard-Soft Seafloor Classification, 40m - Swains, American Samoa

Description

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymetry derivatives at Swains Island, American Samoa. The dataset was created from gridded (40 m cell size) multibeam bathymetry derivatives collected aboard R/V AHI, and NOAA ship Hi'ialakai; two scales of bathymetric variance and bathymetric rugosity. Backscatter data were from a 300 kHz Simrad EM300 and a 240 kHz Reson 8101 sonar, gridded at 5 m. Very limited seafloor photographs for groundtruthing are available for Swains Island and therefore no supervised classification was performed and we are unable to visually or empirically evaluate the accuracy of the unsupervised classification seafloor substrate map. However, in locations such French Frigate Shoals, NWHI, and Tutuila, American Samoa, where ground truth data are available, the unsupervised classification method is a robust predictor of substrate type in similar depth ranges and seafloor environments. Since groundtruthing was not used to validate the unsupervised classification at Swains Island extreme caution should be used when examining these data to locate habitat of biological significance. The map should be used in conjunction with bathymetric derivatives such as rugosity, slope, and Bathymetric Position Index (BPI).

Resources

Name Format Description Link
0 http://pacioos.org
0 https://www.soest.hawaii.edu/pibhmc/
0 https://www.soest.hawaii.edu/pibhmc/
0 http://pacioos.org
0 https://www.soest.hawaii.edu/pibhmc/
0 http://pacioos.org
0 http://pacioos.org
52 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. http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/gwc/service/wms?service=WMS&version=1.1.1&request=GetCapabilities&tiled=true
0 https://www.soest.hawaii.edu/pibhmc/
0 http://www.soest.hawaii.edu/pibhmc/
52 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. http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_pibhmc_swa_40m_hardsoft/ows?service=WMS&version=1.3.0&request=GetCapabilities
50 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. http://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_pibhmc_swa_40m_hardsoft/ows?service=WCS&version=1.0.0&request=GetCapabilities
0 This URL provides access to this dataset via GeoServer, including multiple output formats and an OpenLayers viewer. https://geo.pacioos.hawaii.edu/geoserver/
55 This URL provides additional metadata for this dataset from the source provider. http://geo.pacioos.hawaii.edu/geoserver/www/metadata/as_pibhmc_swa_40m_hardsoft.xml
0 https://www.soest.hawaii.edu/pibhmc/
27 http://pacioos.org
0 https://www.soest.hawaii.edu/pibhmc/
0 https://www.soest.hawaii.edu/pibhmc/
27 http://pacioos.org
0 https://www.soest.hawaii.edu/pibhmc/
27 http://pacioos.org
52 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. https://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_pibhmc_swa_40m_hardsoft/ows?service=WMS&version=1.3.0&request=GetCapabilities
50 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. https://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_pibhmc_swa_40m_hardsoft/ows?service=WCS&version=1.0.0&request=GetCapabilities
0 https://www.soest.hawaii.edu/pibhmc/
27 http://pacioos.org
0 This URL provides access to this dataset via GeoServer, including multiple output formats and an OpenLayers viewer. https://geo.pacioos.hawaii.edu/geoserver/
55 This URL provides additional metadata for this dataset from the source provider. http://geo.pacioos.hawaii.edu/geoserver/www/metadata/as_pibhmc_swa_40m_hardsoft.xml
0 https://www.soest.hawaii.edu/pibhmc/
27 http://pacioos.org
0 https://www.soest.hawaii.edu/pibhmc/
0 https://www.soest.hawaii.edu/pibhmc/
27 http://pacioos.org
50 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. https://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_pibhmc_swa_40m_hardsoft/ows?service=WCS&version=1.0.0&request=GetCapabilities
52 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. https://geo.pacioos.hawaii.edu/geoserver/PACIOOS/as_pibhmc_swa_40m_hardsoft/ows?service=WMS&version=1.3.0&request=GetCapabilities

Tags

  • swains
  • land surface
  • geomorphology
  • oceans
  • pacioos
  • american samoa
  • pacific islands ocean observing system
  • earth science
  • bathymetry/seafloor topography
  • ocean
  • coastal landforms/processes
  • polynesia
  • hard seafloor substrate
  • pacific ocean
  • soft seafloor substrate
  • south pacific ocean

Topics

Categories