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).

20m 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).

5m grid data files

Northwest Hawaiian Islands:                                Pearl and Hermes Atoll

[ Bathymetry | Backscatter | Optical Validation | Geomorphology ]

Backscatter Gridded Data

Pearl and Hermes Atoll Composite Backscatter Imagery

Pearl and Hermes backscatter composite image.

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

Pearl and Hermes Atoll Color Composite Backscatter Imagery

Pearl and Hermes 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, GeoTIFF, or ASCII), 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

Pearl and Hermes AHI Reson 8101 240 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 1 meter NetCDF grids and GeoTIFFs that are 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.

Reson 30 m grid: Grid metadata text

Reson 1 m grid: Grid metadata text

 
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Hi‘ialakai Simrad EM3002d 300 kHz Backscatter Imagery

Pearl and Hermes Hiialakai Simrad EM3002d 300 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 5 meter NetCDF grids and GeoTIFFs that are 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.

EM3002d 30 m grid: Grid metadata text

EM3002d 1 m grid: Grid metadata text

 
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Hi‘ialakai Simrad EM300 30 kHz Backscatter Imagery

Pearl and Hermes 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 5 meter NetCDF grids and GeoTIFFs that are 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 30 m grid: Grid metadata text

EM300 5 m grid: Grid metadata text

 
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