Dataset description: High-resolution acoustic backscatter data collected southwest of Chenega Island, Alaska

High-resolution acoustic backscatter data were collected by the U.S. Geological Survey (USGS) and the Alaska Department of Fish and Game in May of 2014 southwest of Chenega Island, Alaska. Data were collected aboard the Alaska Department of Fish and Game vessel, R/V Solstice, during USGS field activity 2014-622-FA, using a pole mounted 100-kHz Reson 7111 multibeam echosounder.

Version	1
Keywords	sea-floor characteristics, multibeam sonar, sea-floor acoustic reflectivity, geospatial datasets, marine geophysics
Data types	Multibeam
Format	GeoTIFF;
Amount	1.9 MB

Contacts

Contact	Alicia F Balster-gee PCMSC_data@usgs.gov

Report a problem

Location of materials and files

Public files	https://www.sciencebase.gov/catalog/file/get/5c5ccc99e4b0fe48cb31259b https://www.sciencebase.gov/catalog/item/5c5ccc99e4b0fe48cb31259b https://doi.org/10.5066/P9K1YQ35
Metadata	https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/ScienceBase/DR_P9K1YQ35/2014-622-FA_Chenega_UTM6N_10m_Backscatter_metadata.xml Outline - Questions and answers - Text - XML

Activities and equipment

Activity	Equipment
2014-622-FA	Reson 7111 The SeaBat 7111 produces bathymetry data suitable for the generation of high resolution hydrographic charts exceeding international standards in water depths from 3 to 1000m. Operating at 100kHz, the system forms 101, 201 high-density, equi-angle or 301 equi-distant beams to cover a total receive sector of 150¬∞. The system is pitch stabilized. The SeaBat 7111 transducer array is comprised of a cylindrical receive array and a linear transmitter array, mounted together on a support cradle that provides mounting points to the vessel. Lightweight and portable, the array can be installed temporarily over the side of a vessel of opportunity a first for a system in this frequency range.

Activity

Equipment

2014-622-FA

Reson 7111

The SeaBat 7111 produces bathymetry data suitable for the generation of high resolution hydrographic charts exceeding international standards in water depths from 3 to 1000m. Operating at 100kHz, the system forms 101, 201 high-density, equi-angle or 301 equi-distant beams to cover a total receive sector of 150¬∞. The system is pitch stabilized. The SeaBat 7111 transducer array is comprised of a cylindrical receive array and a linear transmitter array, mounted together on a support cradle that provides mounting points to the vessel. Lightweight and portable, the array can be installed temporarily over the side of a vessel of opportunity a first for a system in this frequency range.