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

Not yet available

Northwest Hawaiian Islands: Maro Reef

[ Bathymetry | Backscatter | Optical Validation | Geomorphology ]

Backscatter Gridded Data

Maro Reef Composite Backscatter Imagery

Maro backscatter composite image.

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

Maro Reef Color Composite Backscatter Imagery

Maro backscatter composite image.

Maro backscatter composite image legend.

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

Maro 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. The 30 meter NetCDF grid and GeoTIFF are available for download as a single grid, numbered 25-01.

Reson 30 m grid: NetCDF grid metadata text | GeoTIFF metadata text

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

 
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Hi‘ialakai Simrad EM3002d 300 kHz Backscatter Imagery

Maro 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 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. The 30 meter NetCDF grid and GeoTIFF are available for download as a single grid, numbered 65-01.

EM3002d 30 m grid: NetCDF grid metadata text | GeoTIFF metadata text

EM3002d 1 m grid: NetCDF grid metadata text | GeoTIFF metadata text

 
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Hi‘ialakai Simrad EM300 30 kHz Backscatter Imagery

Maro 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 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. The 30 meter NetCDF grid and GeoTIFF are available for download as a single grid, numbered 100-01.

EM300 30 m grid: NetCDF grid metadata text | GeoTIFF metadata text

EM300 1 m grid: NetCDF grid metadata text | GeoTIFF metadata text

 
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Kilo Moana Simrad EM120 12 kHz Backscatter Imagery

Maro Kilo Moana Simrad EM120 12 kHz Backscatter Imagery.

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

The data for the above map are available as a single grid. Use the pulldown menus to download the data set of your choice.

EM120 30 m grid: NetCDF grid metadata text | ASCII metadata text

 
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