Mosaic of bathymetry derived from multispectral WV-2 satellite imagery of Agrihan Island, Territory of Mariana, USA (NODC Accession 0126914)
Bathymetric data derived from a multispectral World View-2 satellite image mosaiced to provide near complete coverage of nearshore terrain around the islands. Bathymetry values shallower than ~20 m were derived by gauging the relative attenuation of coastal, blue, green and yellow spectral radiance as a function of depth. A multiple linear regression analysis of coastal, blue, green and yellow band spectral values against depth determined the variables of y-intercept, coastal,blue, green and yellow slope values. Variables then used in multivariate slope intercept formula to derive depth. Variables were adjusted to improve the statistical accuracy and spatial coverage of the final derived bathymetry product. Digital image processing to derive depths conducted with the ENVI 4.8 software program while data editing and integration was performed using ArcGIS 10. This data set is for the shelf environment of Agrihan Island, Mariana.
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)",
"@type": "vcard:Contact",
"hasEmail": "mailto:nmfs.pic.credinfo@noaa.gov"
}
|
| describedByType | application/octet-steam |
| description | Bathymetric data derived from a multispectral World View-2 satellite image mosaiced to provide near complete coverage of nearshore terrain around the islands. Bathymetry values shallower than ~20 m were derived by gauging the relative attenuation of coastal, blue, green and yellow spectral radiance as a function of depth. A multiple linear regression analysis of coastal, blue, green and yellow band spectral values against depth determined the variables of y-intercept, coastal,blue, green and yellow slope values. Variables then used in multivariate slope intercept formula to derive depth. Variables were adjusted to improve the statistical accuracy and spatial coverage of the final derived bathymetry product. Digital image processing to derive depths conducted with the ENVI 4.8 software program while data editing and integration was performed using ArcGIS 10. This data set is for the shelf environment of Agrihan Island, Mariana. |
| distribution |
[
{
"@type": "dcat:Distribution",
"mediaType": "placeholder/value",
"downloadURL": "ftp://ftp.soest.hawaii.edu/pibhmc/website/data/cnmi-guam/bathymetry/agr_dball_2m.zip",
"describedByType": "application/octet-steam"
}
]
|
| identifier | AGR_Metadata_DBALL_2m |
| issued | 2014-10-09T00:00:00.000+00:00 |
| keyword |
[
"CoRIS_Metadata",
"Geographic Information > Bathymetry",
"EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry",
"EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Satellite (digital scans) > WorldView-2",
"EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth",
"Slope",
"Bathymetry",
"Benthic Habitat Mapping and Characterization in the Pacific Islands Region",
"467",
"Agrihan Island",
"Commonwealth of the Northern Mariana Islands",
"United States of America",
"COUNTRY/TERRITORY > Northern Mariana Islands > Agrihan Island > Agrihan Island (18N145E0002)",
"OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Agrihan Island > Agrihan Island (18N145E0002)"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2014-10-09T00:00:00.000+00:00 |
| publisher |
{
"name": "Pacific Islands Benthic Habitat Mapping Center (PIBHMC), Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA)",
"@type": "org:Organization"
}
|
| rights | otherRestrictions, unclassified |
| spatial | 145.725,18.705,145.597,18.842 |
| temporal | 2003-08-26T00:00:00+00:00/2012-05-03T00:00:00+00:00 |
| title | Mosaic of bathymetry derived from multispectral WV-2 satellite imagery of Agrihan Island, Territory of Mariana, USA (NODC Accession 0126914) |
