Mosaic of 5 m gridded multibeam bathymetry and bathymetry derived from multispectral IKONOS satellite imagery of Maug Island, Commonwealth of the Northern Marianas Islands, USA
Gridded multibeam bathymetry is integrated with bathymetry derived from multpectral IKONOS satellite data. Gridded (5m and 10 m cell size) multibeam bathymetry collected aboard NOAA Ship Hiialaka'i and R/V AHI. Bathymetry values shallower than 25 m were derived by gauging the relative attenuation of blue and green spectral radiance as a function of depth. A multiple linear regression analysis of linearized blue and green band spectral values against depth determined the variables of y-intercept, blue slope and green 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 4.5 software program while data editing and integration was performed using ArcGIS 9.3. This dataset is for the shelf environment of Maug Island, Commonwealth of the Northern Marianas Islands, USA
Complete Metadata
| @type | dcat:Dataset |
|---|---|
| accessLevel | non-public |
| contactPoint |
{
"fn": "NOAA PIFSC CRED PIBHMC and DJLab OSU",
"@type": "vcard:Contact",
"hasEmail": "mailto:hogrefek@geo.oregonstate.edu"
}
|
| describedByType | application/octet-steam |
| description | Gridded multibeam bathymetry is integrated with bathymetry derived from multpectral IKONOS satellite data. Gridded (5m and 10 m cell size) multibeam bathymetry collected aboard NOAA Ship Hiialaka'i and R/V AHI. Bathymetry values shallower than 25 m were derived by gauging the relative attenuation of blue and green spectral radiance as a function of depth. A multiple linear regression analysis of linearized blue and green band spectral values against depth determined the variables of y-intercept, blue slope and green 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 4.5 software program while data editing and integration was performed using ArcGIS 9.3. This dataset is for the shelf environment of Maug Island, Commonwealth of the Northern Marianas Islands, USA |
| distribution |
[
{
"@type": "dcat:Distribution",
"mediaType": "placeholder/value",
"downloadURL": "http://www.soest.hawaii.edu/pibhmc/pibhmc_cnmi_mau_bathy.htm",
"describedByType": "application/octet-steam"
}
]
|
| identifier | mau_dbmb_5m_metadata |
| issued | 2009-02-21T00:00:00.000+00:00 |
| keyword |
[
"CoRIS_Metadata",
"Benthic Habitat Mapping and Characterization - Commonwealth of the Northern Mariana Islands and Guam",
"1398",
"EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Bathymetry",
"EARTH SCIENCE > Oceans > Bathymetry/Seafloor Topography > Water Depth",
"EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Remote Sensing > Satellite (digital scans) > IKONOS",
"Geographic Information > Bathymetry",
"Slope",
"Bathymetry",
"Multibeam sonar",
"Maug Island",
"Commonwealth of the Northern Marianas Islands",
"United States of America",
"OCEAN BASIN > Pacific Ocean > Western Pacific Ocean > Maug Island > Maug Island (20N145E0001)",
"COUNTRY/TERRITORY > Northern Mariana Islands > Maug > Maug Island (20N145E0001)",
"CNMI"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2009-02-21T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA PIFSC CRED PIBHMC and DJLab OSU",
"@type": "org:Organization"
}
|
| rights | otherRestrictions, unclassified |
| spatial | 145.297305,19.968431,145.162286,20.071158 |
| temporal | 2003-09-12T00:00:00+00:00/2007-06-08T00:00:00+00:00 |
| title | Mosaic of 5 m gridded multibeam bathymetry and bathymetry derived from multispectral IKONOS satellite imagery of Maug Island, Commonwealth of the Northern Marianas Islands, USA |
