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Hard-Soft Seafloor Classification, 5m (Reson) - Tutuila, American Samoa

Metadata Updated: October 14, 2022

Preliminary hard and soft seafloor substrate map derived from an unsupervised classification of multibeam backscatter and bathymety derivatives at Tutuila Island, American Samoa, South Pacific. The dataset was derived using a combination of Reson 8101 backscatter, bathymetric variance, and bathymetric rugosity. The sonar frequency was 240 kHz and all data were resampled to 5 m grid cell size prior to the classification. Initial supervised classifications of the backscatter data into hard and soft seafloor substrates, using seafloor photographs for groundtruthing and to define regions of interest, were used to define unsupervised class types and to visually evaluate the accuracy of the unsupervised classification seafloor substrate map.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date March 30, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date October 14, 2022
Reference Date(s) January 25, 2016 (creation), January 25, 2016 (issued), January 25, 2016 (revision)
Frequency Of Update

Metadata Source

Harvested from ioos

Graphic Preview

Sample image.

Additional Metadata

Resource Type Dataset
Metadata Date March 30, 2021
Metadata Created Date November 12, 2020
Metadata Updated Date October 14, 2022
Reference Date(s) January 25, 2016 (creation), January 25, 2016 (issued), January 25, 2016 (revision)
Responsible Party Pacific Islands Benthic Habitat Mapping Center (PIBHMC) (Point of Contact)
Contact Email
Guid as_pibhmc_tut_5m_hardsoft_reson
Access Constraints
Bbox East Long -170.485
Bbox North Lat -14.195
Bbox South Lat -14.384
Bbox West Long -170.904
Coupled Resource [{"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}, {"title": [], "href": ["#DataIdentification"], "uuid": []}]
Frequency Of Update
Graphic Preview Description Sample image.
Graphic Preview File http://pacioos.org/metadata/browse/as_pibhmc_tut_5m_hardsoft_reson.png
Harvest Object Id 2cc653fe-46b6-412d-afaa-f93e8be70b6d
Harvest Source Id 54e15a6e-6dde-4c9c-a8f0-345cc0dfccfb
Harvest Source Title ioos
Licence
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-170.904, -14.384], [-170.485, -14.384], [-170.485, -14.195], [-170.904, -14.195], [-170.904, -14.384]]]}
Progress
Spatial Data Service Type Open Geospatial Consortium Web Coverage Service (WCS)
Spatial Reference System
Spatial Harvester True

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