Description
Seafloor substrate (i.e., hard vs. soft bottom) maps from 0 to up to 50 m depths around select islands and atolls in American Samoa, the Mariana Archipelago, and the Pacific Remote Island Areas were produced by the NOAA Fisheries Ecosystem Sciences Division (ESD). The islands and atolls include Tutuila, Ofu and Olosega, Tau, and Rose in American Samoa; Anatahan, Maug, Aguijan, Pagan, Rota, Tinian, Saipan, and Guam in the Mariana Archipelago; and Howland, Jarvis, Kingman, Palmyra, and Johnston in the Pacific Remote Island Areas. This is a preliminary product, derived from integrating two existing map products: hard and soft seafloor substrate maps derived from an unsupervised classification of multibeam backscatter and bathymetry derivatives produced by ESD, and shallow-water benthic habitat maps generated by the NOAA Centers for Coastal Ocean Science. The resulting maps were then updated with ESD's groundtruth data, including biological survey data and benthic cover data derived from the analysis of seafloor images. The final maps were interpolated to fill in gaps and smoothed to remove isolated pixels, and the substrate data were constrained up to 50-m depths. For the Pacific Remote Island Areas where no benthic habitat maps were available, hard and soft substrate maps were newly generated from high spatial resolution satellite images.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| ofu_5m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Ofu/Olosega Islands, American Samoa. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 20m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| ros_5m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Rose Atoll, American Samoa. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 20m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| tau_5m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Tau Island, American Samoa. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 20m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| tut_5m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Tutuila Island, American Samoa. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 50m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| agu_4m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Aguijan Island, Mariana Archipelago. The zip file contains the integrated Hard and Soft Seafloor Substrate product in GeoTIFF format with the PDF map showing the extent of the product. | |
| ana_4m_hardsoft.zip | ZIP | Hard and Soft Bottom Seafloor Substrate Map of Anatahan Island, Mariana Archipelago. The zip file contains the product in GeoTIFF format with the PDF map showing the extent of the products. | |
| gua_5m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Guam Island, Mariana Archipelago. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 50m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| mau_4m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Maug Island, Mariana Archipelago. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 20m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. The file also contains the 20m depth contour shapefile of Supply Reef near by. | |
| pag_5m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Pagan Island, Mariana Archipelago. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 20m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| rot_4m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Rota Island, Mariana Archipelago. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 20m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| sai_5m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Saipan Island, Mariana Archipelago. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 50m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| tin_5m_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Tinian Island, Mariana Archipelago. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 20m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. | |
| how_2m_hardsoft.zip | ZIP | Newly developed Hard and Soft Bottom Seafloor Substrate Map of Howland Island, Pacific Remote Islands. The zip file contains the product in GeoTIFF format with the PDF map showing the extent of the product. Also included is the 10 m contour polygon file for Howland, which was not previously provided as there was a lack of sufficient data available at that time. Access to additional better quality WorldView imagery for Howland allowed for new estimated depths to be generated, and therefore sufficient depth information is now available to derive the 10-m isobath. Source WorldView satellite images: 2011 and 2016 | |
| jar_2m_hardsoft.zip | ZIP | Newly developed Hard and Soft Bottom Seafloor Substrate Map of Jarvis Island, Pacific Remote Islands. The zip file contains the product in GeoTIFF format with the PDF map showing the extent of the product. Also included is the 10 m contour polygon file for Jarvis, which was not previously provided as there was a lack of sufficient data available at that time. Access to additional better quality WorldView imagery for Jarvis allowed for new estimated depths to be generated, and therefore sufficient depth information is now available to derive the 10-m isobath. Source WorldView satellite image: 2016 | |
| joh_2m_hardsoft.zip | ZIP | Newly developed Hard and Soft Bottom Seafloor Substrate Map of Johnston Atoll, Pacific Remote Islands. The zip file contains the product in GeoTIFF format with the PDF map showing the extent of the product. Source WorldView satellite image: 2014 | |
| kin_2m_hardsoft.zip | ZIP | Newly developed Hard and Soft Bottom Seafloor Substrate Map of Kingman Reef, Pacific Remote Islands. The zip file contains the product in GeoTIFF format with the PDF map showing the extent of the product. Source WorldView satellite image: 2015 | |
| pal_hardsoft.zip | ZIP | Integrated Hard and Soft Bottom Seafloor Substrate Map of Palmyra Atoll, Pacific Remote Islands.. The zip file contains the interpolated and non-interpolated versions of the integrated products in GeoTIFF format and the 20m depth contour shapefile with the PDF map showing the extent of the products. The number of the file name indicates the pixel resolution of the products. The zip file also contains newly developed Hard and Soft Bottom Seafloor Substrate Map of Palmyra Atoll. It includes the non-interpolated version, and the interpolated version with the existing benthic habitat layers. The products are in GeoTIFF format with the PDF map showing the extent of the product. Source WorldView satellite image: 2014 | |
| Global Change Master Directory (GCMD) Keywords | Unknown | The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. | Open resource |
| Full Metadata Record | Unknown | View the complete metadata record on InPort for more information about this dataset. | Open resource |
| NOAA Data Management Plan (DMP) | NOAA Data Management Plan for this record on InPort. | Open resource | |
| NOAA Fisheries, Pacific Islands Region, Protected Marine Life website | Unknown | This web page describes the corals listed as threatened under the Endangered Species Act. | Open resource |
| Pacific Islands Fisheries Science Center Website | Unknown | Pacific Island Fisheries Science Center homepage | Open resource |
| Pacific Islands Benthic Habitat Mapping Center (PIBHMC) website | Unknown | NOAA ESD source data are accessible through this website. | Open resource |
Tags
- 467
- aguihan
- aguihan island (aguijan) (14n145e0006)
- aguihan island reefs
- american samoa
- anatahan
- anatahan island
- anatahan island (16n145e0001)
- aquatic habitat
- bathymetry/seafloor topography
- benthic
- benthic habitat
- biosphere
- central pacific ocean
- cnmi
- coastal processes
- commonwealth of the northern mariana islands
- coral reef conservation program
- coral reef ecology
- coral reef ecosystem division
- coral reef ecosystem program
- coral reefs
- coral reef studies
- corals
- country/territory
- cred
- crep
- doc/noaa/nmfs/pifsc
- earth science
- ecosystem sciences division
- equatorial pacific ocean
- esd
- geographic information
- geomorphology
- geomorphology mapping
- gis product
- guam
- guam (13n144e0000)
- habitat mapping
- habitats
- hard seafloor substrate
- howland island
- howland island (00s176w0001)
- jarvis island (00s160w0001)
- johnston atoll
- johnston atoll (16n169w0001)
- kingman reef (06n162w0001)
- line islands
- manu'a group
- mapping
- mapping and ecospatial information products to support coral reef ecosystem management in the pacifi
- mariana archipelago
- mariana islands
- marianas
- marianas trench marine national monument
- maug
- maug island
- maug island (20n145e0001)
- national marine fisheries service
- nmfs
- noaa
- northern mariana islands
- northern mariana islands ( cnmi ) (18n146e0000)
- nw pacific
- ocean basin
- oceans
- ofu (14s169w0002)
- ofu island
- ofu island (14s169w0013)
- olosega (14s169w0016)
- olosega island
- olosega island (14s169w0014)
- pacific islands fisheries science center
- pacific ocean
- pacific remote island areas
- pacific remote islands marine national monument
- pagan
- pagan island
- pagan island (18n145e0001)
- palmyra atoll (05n162w0001)
- pifsc
- pria
- primnm
- reef habitat
- reef monitoring and assessment
- rose atoll (14s168w0001)
- rose atoll marine national monument
- rota
- rota island
- rota island ( luta ) (14n145e0007)
- saipan
- saipan island
- saipan island (15n145e0002)
- seabed substrate
- sea floor
- seafloor substrate
- soft seafloor substrate
- south pacific ocean
- substrate description
- ta'u island (14s169w0012)
- tinian
- tinian island (14n145e0005)
- tinian island reefs
- tutuila island (14s170w0016)
- united states of america
- usa minor outlying islands
- u.s. department of commerce
- us doc
- western pacific ocean
- zoology