Mosaic of gridded multibeam bathymetry and bathymetry derived from multispectral IKONOS satellite imagery of Palmyra Atoll, Pacific Remote Island Area, USA
Gridded multibeam bathymetry is integrated with bathymetry derived from multispectral IKONOS satellite data. Gridded (5 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 Palmyra Atoll, Pacific Remote Island Area, 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 multispectral IKONOS satellite data. Gridded (5 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 Palmyra Atoll, Pacific Remote Island Area, USA |
| distribution |
[
{
"@type": "dcat:Distribution",
"mediaType": "placeholder/value",
"downloadURL": "https://www.soest.hawaii.edu/pibhmc/cms/data-by-location/pacific-remote-island-area/palymyra-atoll/palmyra-atoll-bathymetry/",
"describedByType": "application/octet-steam"
}
]
|
| identifier | pal_dbmb_metadata |
| issued | 2009-06-18T00:00:00.000+00:00 |
| keyword |
[
"CoRIS_Metadata",
"Benthic Habitat Mapping and Characterization - American Samoa and PRIA",
"1084",
"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",
"Palmyra Atoll",
"Pacific Remote Island Area",
"United States of America",
"OCEAN BASIN > Pacific Ocean > Central Pacific Ocean > Line Islands > Palmyra Atoll (05N162W0001)",
"COUNTRY/TERRITORY > United States of America > USA Minor Outlying Islands > Palmyra Atoll (05N162W0001)",
"PRIA"
]
|
| language |
[]
|
| license | https://creativecommons.org/publicdomain/zero/1.0/ |
| modified | 2009-06-18T00:00:00.000+00:00 |
| publisher |
{
"name": "NOAA PIFSC CRED PIBHMC and DJLab OSU",
"@type": "org:Organization"
}
|
| rights | otherRestrictions, unclassified |
| spatial | -161.995141,5.855663,-162.177002,5.903546 |
| temporal | 2001-12-15T00:00:00+00:00/2006-03-28T00:00:00+00:00 |
| title | Mosaic of gridded multibeam bathymetry and bathymetry derived from multispectral IKONOS satellite imagery of Palmyra Atoll, Pacific Remote Island Area, USA |
