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
5m grid data

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

40m grid data files

PRIA: Howland Island

[ Bathymetry | Backscatter | Optical Validation | Geomorphology ]

Backscatter Gridded Data

Howland Composite Backscatter Imagery

Howland backscatter composite image.

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

Howland Color Composite Backscatter Imagery

Howland 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.

AHI Reson 8101 240 kHz Backscatter Imagery

Howland AHI Reson 8101 240 kHz Backscatter Imagery.

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

The data for the above map are available as one grid, numbered 8-01. Use the pulldown menus to download the data set of your choice.

Reson 1 meter grid: NetCDF grid metadata text | GeoTIFF metadata text

 
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Hi‘ialakai Simrad EM300 30 kHz Backscatter Imagery

Howland Hiialakai Simrad EM300 30 kHz Backscatter Imagery.

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

The data for the above map are available as one grid, numbered 25-01. Use the pulldown menus to download the data set of your choice.

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

 
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