Description
Bathymetric Position Index (BPI) Zones derived from derivatives of Simrad EM-3000 multibeam bathymetry (3 m resolution). BPI zones are surficial characteristics of the seafloor based on a bathymetric position index value range at a broad scale and slope values. High-resolution multibeam bathymetry, derivatives of bathymetry (bathymetric position index, slope and rugosity), backscatter imagery and in situ visual survey data have been combined in a geographic information system (GIS). These data are supplemented by three-dimensional (3D) visualization. Within this study, methods were developed for benthic mapping and applied to three sites around American Samoa, a new classification scheme was developed for bathymetric position index (BPI) zones (depressions, slopes, flats, crests) and structures (finer features within zones) around the study sites, and visual survey information was associated with the results.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource | |
| Web Resource | Unknown | Open resource |
Tags
- 1084
- american samoa
- amsam
- base layer
- bathymetric position index
- bathymetry
- benthic habitat mapping and characterization - american samoa and pria
- biosphere
- bpi
- broad scale
- coastal processes
- coral reef ecology
- coral reefs
- corals
- coris_metadata
- country/territory
- derivative
- earth science
- fagatele bay
- fagatele bay (14s170w0002)
- geographic information
- grid
- habitat mapping
- habitats
- mapping
- ocean basin
- oceans
- pacific ocean
- reef monitoring and assessment
- seafloor
- southwest pacific
- surficial
- tutuila island
- united states of america
- zones
- zoology