Benthic Habitat Data

Bathymetry

Zipped data files contain 1) grid data file (GMT or ASCII), 2) high-res JPG of image, and 3) explanatory metadata text file (identical to linked file listed below).

40m grid data
10m grid data
2m WV-2 derived depths data files
5m WV-2 derived depths, and multibeam from NOAA Ship Hi'ialakai & R/V AHI data files

Not yet available

Zipped data files contain 1) Arc ASCII file, 2) layer (.lyr) file for symbology, 3) high-res JPG/PDF of image, and 4) explanatory metadata text file (identical to linked file listed below).

40m grid data

American Samoa: Swains Island

[ Bathymetry | Backscatter | Optical Validation | Geomorphology ]

Backscatter Gridded Data

Swains Backscatter Imagery

Swains backscatter composite image.

Download above image as a high-res JPG or high-res PDF

Zipped data files contain 1) grid data file (NetCDF/GMT or GeoTIFF), 2) high-res JPG of image, and 3) explanatory metadata text file (identical to linked file listed below). Study area grids are named for the island location, the type of sensor used for data acquisition, the chart box number, and the grid resolution in meters.

Hi‘ialakai Simrad EM300 30 kHz Backscatter Imagery

Swains Hiialakai Simrad EM300 30 kHz Backscatter Imagery.

Download above image with boxes as a high-res JPG or high-res PDF
Download above image without boxes as a high-res JPG or high-res PDF

The boxes on the map represent charts used to grid subsets of the backscatter data into manageable file sizes. The box labels correspond to the charts available for download in the pull down menus. To create a map of the entire backscatter dataset, all charts must be downloaded and the data must be mosaicked.

EM300 5 meter grid: NetCDF grid metadata text | GeoTIFF metadata text

 
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