Rota Island: Backscatter

[ Bathymetry | Backscatter | Optical Validation | Geomorphology ]

Rota IslandComposite Backscatter Imagery

Guam backscatter composite image.

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Rota Island Color Composite Backscatter Imagery

Rota Island backscatter composite image.

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Zipped data files contain 1) grid data file (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

Rota Island AHI Reson 8101 240 kHz Backscatter Imagery.

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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 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 1 m grid: Grid metadata text

Hi‘ialakai Simrad EM300 30 kHz Backscatter Imagery

Rota Island 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 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 5 m grid: Grid metadata text

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).
* Ikonos imagery & USGS Digital Ortho Quarter Quads NOT included with download.

60m grid data
5m grid data
5m WV-2 derived depths data files
5m WV-2 derived depths, and multibeam from NOAA Ship Hi'ialakai & R/V AHI data files

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
60m grid data