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General Information
File Identifier:
gov.noaa.nmfs.inport:12618
Metadata Date Stamp:
2020-04
Organization:
Pacific Islands Fisheries Science Center
Organization Role:
resourceProvider
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Identification Information
Title:
Hard and Soft Bottom Seafloor Substrate Map Derived from an Unsupervised Classification of Gridded Bathymetry Derivatives for the NOAA Habitat Blueprint West Hawaii Focus Area
Dataset Language:
eng; US
Abstract:
Hard and soft bottom seafloor substrate data and maps for the NOAA Habitat Blueprint West Hawaii Focus Area (WHFA) in the Main Hawaiian Islands. Cell values in the raster datasets reflect whether the seafloor is hard bottom or soft bottom based on an unsupervised classification run using ArcGIS software with the Spatial Analyst extension. The classifications are based on bathymetry, acoustic derivatives and verified using seafloor optical data. The seafloor substrate map and associated data are accessible online via the Pacific Islands Benthic Habiat Mapping Center (PIBHMC) website at www.soest.hawaii.edu/pibhmc.
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Browse Graphic
Browse Graphic URL:
https://www.habitatblueprint.noaa.gov/storymap/hfa/hfa_pages/images/westHawaii/location_map.jpg
Browse Graphic Caption:
NOAA Habitat Blueprint West Hawaii Focus Area
Browse Graphic Type:
JPG
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Data Theme
Theme Topics:
Biology and Ecology, Oceans and Estuaries
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Spatial Domain
West Bounding Longitude:
-156.100504
South Bounding Latitude:
19.772429
East Bounding Longitude:
-155.822838
North Bounding Latitude:
20.061727
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Data Quality Information
Scope (quality information applies to):
Dataset
Data History:
The Iso Cluster Unsupervised Classification tool in ArcGIS was used to classify the three-band Principle Component Analysis image into two distinct hard vs soft substrate classes. Ground truth optical imagery as well as existing shallow water habitat maps provided by the USGS and NOAA Biogeography Branch were used to validate and correct the hard soft classification.
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Contact Information
Address:
1845 Wasp Blvd.
City:
Honolulu
State:
HI
Postal Code:
96818
Email:
annette.desrochers@noaa.gov
Telephone:
(808)725-5461
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Distribution Information
Format Name:
Zip
Distribution Link:
ftp://ftp.soest.hawaii.edu/pibhmc/website/data/mhi/benthichabitatlayers/WestHawaii_hardsoft.zip
Distribution Link Function:
Download
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Metadata Reference Information
Metadata Standard Name:
ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data
Metadata Standard Version:
ISO 19115-2:2009(E)
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