Rugosity Grid Derived from Gridded Bathymetry for Select U.S. Locations in the Pacific

Rugosity is derived for islands and banks across the U.S. Pacific Islands Region primarily from gridded multibeam bathymetry collected aboard NOAA Ships Hi'ialakai and Oscar Elton Sette, and aboard R/V AHI (Acoustic Habitat Investigator) from 2003 to 2012 by the NOAA Coral Reef Ecosystem Program (CREP). Other sources of available data used to derive rugosity for a few locations include estimated depths derived from IKONOS satellite imagery from 2000 to 2002, LIDAR data from 2001 and 2007, and multibeam bathymetry collected in 2001 and 2002.

Rugosity is derived using the Benthic Terrain Modeler with rugosity methods by Jeff Jenness (2004). Cell values reflect the (surface area) / (planimetric area) ratio for the area contained within that cell's boundaries. They provide indices of topographic roughness & convolutedness.

The rugosity grids generated for each location are available via the Pacific Islands Benthic Habitat Mapping Center (PIBHMC) wesite at www.soest.hawaii.edu/pibhmc. The data, associated map products, layer files, and detailed documentation (more specific than this pacific-wide record) about the data sources are included in a zip file for each location.

Data and Resources

Additional Info

Field Value
Last Updated September 18, 2017, 17:01
Created June 10, 2017, 17:56
access_constraints ["Access Constraints: None | Use Constraints: These data are not to be used for navigation purposes. \n\nPlease cite NOAA Coral Reef Ecosystem Program (CREP) when using the data. \n\nSuggested citation:\n\nCoral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2017). Rugosity Grid Derived from Gridded Bathymetry for Select U.S. Locations in the Pacific. Pacific Islands Benthic Habitat Mapping Center, https://inport.nmfs.noaa.gov/inport/item/12615. [access date]\n | Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty."]
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contact-email annette.desrochers@noaa.gov
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