This is an integrated benthic habitat map system which consists of a number of separate map layers including multibeam bathymetry, digital NOAA nautical charts, acoustic backscatter imagery, hyperlinked underwater still photographs and/or video framegrabs of the benthos, seafloor classification results of living cover and substrate from optical imagery and towboard diver observations, derived depth contours, layers of geomorphic information (slope, rugosity, Bathymetric Position Index Structures, and Bathymetric Position Index Zones), Ikonos satellite imagery where available, and terrestria

Multibeam backscatter imagery extracted from gridded bathymetry of Tutuila, American Samoa, South Pacific These data provide coverage between 20 and 5000 meters. The backscatter dataset includes data collected using Simrad EM3002d and Reson 8101 multibeam sonars. The sonars frequencies are 300 kHz and 240 kHz respectively and the backscatter data from each sonar are processed and gridded separately. These metadata are for the 16 m grid cell size Reson 8101 multibeam backscatter data only.

Multibeam backscatter imagery extracted from gridded bathymetry of Tutuila, American Samoa, South Pacific These data provide coverage between 20 and 5000 meters. The backscatter dataset includes data collected using Simrad EM3002d and Reson 8101 multibeam sonars. The sonars frequencies are 300 kHz and 240 kHz respectively and the backscatter data from each sonar are processed and gridded separately. These metadata are for the 1 m grid cell size Reson 8101 multibeam backscatter data only.

Multibeam backscatter imagery extracted from gridded bathymetry of Tutuila, American Samoa, South Pacific These data provide coverage between 20 and 5000 meters. The backscatter dataset includes data collected using Simrad EM3002d and Reson 8101 multibeam sonars. The sonars frequencies are 300 kHz and 240 kHz respectively and the backscatter data from each sonar are processed and gridded separately. These metadata are for the 1 m grid cell size Reson 8101 multibeam backscatter data only.

Multibeam backscatter imagery extracted from gridded bathymetry of Vailulu'u, American Samoa, an active volcano that lies between Ta'u Island and Rose Atoll, American Samoa. These data provide coverage between 500 and 3000 meters. The backscatter dataset includes data collected using the Simrad EM300 multibeam sonar. The sonars frequency is 30 kHz. These metadata are for the 5 m grid cell size Simrad em300 multibeam backscatter data only.

Multibeam backscatter imagery extracted from gridded bathymetry of Vailulu'u, American Samoa, an active volcano that lies between Ta'u Island and Rose Atoll, American Samoa. These data provide coverage between 500 and 3000 meters. The backscatter dataset includes data collected using the Simrad EM300 multibeam sonar. The sonars frequency is 30 kHz. These metadata are for the 5 m grid cell size Simrad em300 multibeam backscatter data only.

Personnel from the Coral Reef Ecosystem Division (CRED), Pacific Islands Fisheries Science Center (PIFSC), National Marine Fisheries Service (NMFS), National Oceanic and Atmospheric Administration (NOAA), Northwestern Hawaiian Islands Marine National Monument, National Ocean Service, NOAA, Panama City Laboratory, Southeast Fisheries Science Center, NMFS, NOAA, the U.S.

CREWS Standard (CREWS-STD) buoys are equipped to measure sea surface water temperature and conductivity (Sea-Bird Model SBE37-SM, Sea-Bird Electronics, Inc., www.seabird.com) at 1 m (nominal) below the water line and air temperature (R.M Young Model 41342); barometric pressure (Heise DXD and wind vectors (Vaisala WAS425A) at 2 m (nominal) above the water line. A compass (KVH C100 SE-25) is used in the calculation of wind direction and a GPS system provides geolocation.

CREWS Standard (CREWS-STD) buoys are equipped to measure sea surface water temperature and conductivity (Sea-Bird Model SBE37-SM, Sea-Bird Electronics, Inc., www.seabird.com) at 1 m (nominal) below the water line and air temperature (R.M Young Model 41342); barometric pressure (Heise DXD and wind vectors (Vaisala WAS425A) at 2 m (nominal) above the water line. A compass (KVH C100 SE-25) is used in the calculation of wind direction and a GPS system provides geolocation.

CREWS Standard (CREWS-STD) buoys are equipped to measure sea surface water temperature and conductivity (Sea-Bird Model SBE37-SM, Sea-Bird Electronics, Inc., www.seabird.com) at 1 m (nominal) below the water line and air temperature (R.M Young Model 41342); barometric pressure (Heise DXD and wind vectors (Vaisala WAS425A) at 2 m (nominal) above the water line. A compass (KVH C100 SE-25) is used in the calculation of wind direction and a GPS system provides geolocation.