Hard-Soft Seafloor Classification, 5m (Simrad) - Tutuila, American Samoa
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 Simrad em3002d backscatter, bathymetric variance, and bathymetric rugosity. The sonar frequencies was 300 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.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | public |
| contactPoint |
{
"fn": "Pacific Islands Benthic Habitat Mapping Center (PIBHMC)",
"@type": "vcard:Contact",
"hasEmail": "mailto:pibhmc@soest.hawaii.edu"
}
|
| describedByType | application/octet-steam |
| description | 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 Simrad em3002d backscatter, bathymetric variance, and bathymetric rugosity. The sonar frequencies was 300 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. |
| distribution |
[
{
"@type": "dcat:Distribution",
"title": "GeoServer",
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"description": "This URL provides access to this dataset via GeoServer, including multiple output formats and an OpenLayers viewer.",
"downloadURL": "https://geo.pacioos.hawaii.edu/geoserver/",
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{
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|
| identifier | as_pibhmc_tut_5m_hardsoft_simrad |
| isPartOf | Pacific Islands Ocean Observing System (PacIOOS) |
| issued | 2016-01-25T00:00:00.000+00:00 |
| keyword |
[
"Earth Science > Land Surface > Geomorphology > Coastal Landforms/Processes",
"Earth Science > Oceans > Bathymetry/Seafloor Topography > Hard Seafloor Substrate",
"Earth Science > Oceans > Bathymetry/Seafloor Topography > Soft Seafloor Substrate",
"Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Tutuila",
"PacIOOS > Pacific Islands Ocean Observing System",
"PacIOOS > Pacific Islands Ocean Observing System"
]
|
| landingPage | https://www.soest.hawaii.edu/pibhmc/ |
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2016-01-25T00:00:00.000+00:00 |
| publisher |
{
"name": "Pacific Islands Ocean Observing System (PacIOOS)",
"@type": "org:Organization"
}
|
| spatial | -170.549,-14.384,-170.928,-14.196 |
| title | Hard-Soft Seafloor Classification, 5m (Simrad) - Tutuila, American Samoa |
