Benthic Habitat Maps for Rose Atoll Marine National Monument in American Samoa from 2004 to 2010

Metadata Updated: April 21, 2022

Benthic habitat maps for Rose Atoll, American Samoa were derived from high resolution, multispectral satellite imagery for 2004, 2006, and 2010. The benthic habitat maps for 2004 were previously generated by NOAA's NCCOS's BioGeography Branch before this project, and they were gathered from NOAA's 2005 publication (NCCOS, 2005). The benthic habitat maps for 2006 and 2010 were generated in this project. Bathymetry (water depth) from 0 to 30 meters was derived from satellite imagery for 2006 and 2010 and validated with multibeam and singlebeam depth data, respectively. Eight geomorphological features of the seafloor (Mean Depth, Standard Deviation of Depth, Slope, Slope of Slope, Rugosity, Curvature, Plan Curvature, and Profile Curvature) were derived from the bathymetry for 2006 and 2010. The geomorphological features were used to perform a Principal Component Analysis (PCA), and the first three Principal Components were used in combination with classified benthic imagery (underwater images of the seafloor) to classify the underwater habitat of the inner lagoon and sloping reef areas of Rose Atoll.

The final benthic habitat maps consist of two maps for each of the three years. The first map shows the four dominant cover types that make up the shallow water benthic habitat on Rose Atoll, which are coral, coralline algae, macroalgae, and turf algae. The area in square kilometers of each cover types is provided. The purpose of the first map is to show the most abundant biological cover types in the benthic habitat. The second map show the percentages of the four dominant cover types, which are divided into three bins: 10%-<50% coverage, 50%-<90% coverage, and 90%-100% coverage. The area in square kilometers of each of the cover types is also provided. The purpose of the second map is to examine the smaller changes in the benthic habitat over the three years.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date March 29, 2022
Metadata Created Date November 12, 2020
Metadata Updated Date April 21, 2022
Reference Date(s) 2017 (publication)
Frequency Of Update notPlanned

Additional Metadata

Resource Type Dataset
Metadata Date March 29, 2022
Metadata Created Date November 12, 2020
Metadata Updated Date April 21, 2022
Reference Date(s) 2017 (publication)
Responsible Party (Point of Contact, Custodian)
Contact Email
Guid gov.noaa.nmfs.inport:46886
Access Constraints Cite As: Pacific Islands Fisheries Science Center, [Date of Access]: Benthic Habitat Maps for Rose Atoll Marine National Monument in American Samoa from 2004 to 2010 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/46886., Access Constraints: None | Use Constraints: These data are not to be used for navigation purposes. Please cite NOAA Coral Reef Ecosystem Program (CREP) when using the data. Suggested citation: Roberson, Liana; Coral Reef Ecosystem Program; Pacific Islands Fisheries Science Center (2017). Benthic Habitat Maps for Rose Atoll Marine National Monument in American Samoa from 2004 to 2010. Pacific Islands Benthic Habitat Mapping Center, https://www.fisheries.noaa.gov/inport/item/46886. | 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.
Bbox East Long -168.13
Bbox North Lat -14.52
Bbox South Lat -14.57
Bbox West Long -168.18
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id 8a7b9f97-f958-4394-9038-1af54bffb2ed
Harvest Source Id c0beac72-5f43-4455-8c33-1b345fbc2dfe
Harvest Source Title NMFS PIFSC
Licence NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose.
Metadata Language eng
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-168.18, -14.57], [-168.13, -14.57], [-168.13, -14.52], [-168.18, -14.52], [-168.18, -14.57]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 2006-02-01
Temporal Extent End 2006-03-01

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