1. Coastal/Marine Hazards and Resources
  2. Coastal and Marine Geoscience Data System

Chirp 512i

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Description This sub-bottom profiler is EdgeTech's long running success story in providing Full Spectrum (“chirp”) imaging. Under any conditions when compared to other sub-bottom profilers, the SB-512i provides better images more deployment options, and interface flexibility. The SB-512i has a frequency range from 500 Hz to 12 kHz. This system uses special design transmitters with low Q widesband characteristics best suited for “chirp” transmissions. If conventional off-the-shelf transducers are used then there is a need to compensate in software for the narrow band characteristics of the transmitters. The result is visible in the images created. At least two hydrophones are installed in the tow vehicle to reduce acoustic scattering from the sides. This results in a narrower across track beam pattern. Preserved in the output of the Full Spectrum chirp processing in the signal phase.
Active? Yes
Manufacturer EdgeTech
Model number SB-512i
Device type Underway > Receiver > Seismic > Seismic reflection receiver (hydrophones, etc.) > Sediment
Feature type
Name Profile line
Description Bathy, seismic, and other accoustic methods
Type line
Organization USGS, St. Petersburg Coastal and Marine Science Center (SPCMSC)
Data types
Sub Bottom Profiler Seismics (Chirp, boomer, Multichannel)

Usage of this device

Field activity Center Platforms Activity location and equipment usage description
07SCC01 SPCMSC Chandeleur Islands, LA
Type ID Access Name Description
Dataset 356 Public 07SCC01-SE-pd-1 Chirp 512i data navigation
Dataset 357 Public 07SCC01-SE-pd-2 Chirp 512i data profiles
Dataset 358 Public 07SCC01-SE-pd-3 Chirp 512i data GIS
Dataset 359 Public 07SCC01-SE-pd-4 Chirp 512i data GeoMapApp
Dataset 360 Public 07SCC01-SE-pd-5 Chirp 512i data agc SEGY
08CCT01 SPCMSC Ship Island, MS
Type ID Access Name Description
Dataset 37837 Public 08CCT01-SE-pd-2 Chirp 512i data profiles
Dataset 37838 Public 08CCT01-SE-pd-3 Chirp 512i data GIS
Dataset 37839 Public 08CCT01-SE-pd-4 Chirp 512i data GeoMapApp
Dataset 37840 Public 08CCT01-SE-pd-5 Chirp 512i data agc SEGY
09CCT01 SPCMSC Galveston, TX
Type ID Access Name Description
Dataset 37855 Public 09CCT01-SE-pd-1 Chirp 512i navigation
Dataset 37856 Public 09CCT01-SE-pd-2 Chirp 512i profiles
Dataset 37852 Public 09CCT01-SE-pd-3 Chirp 512i GIS
Dataset 37853 Public 09CCT01-SE-pd-5 Chirp 512i agc SEGY
Dataset 37854 Public 09CCT01-SE-rd-1 Chirp 512i
09CCT04 SPCMSC Horn Island, MS to Dauphin Island, AL
Type ID Access Name Description
Dataset 33033 Public 09CCT04-SE-pd-2 Chirp 512i data profiles
Dataset 37030 Public 09CCT04-SE-pd-3 Chirp 512i data GIS
Dataset 37259 Public 09CCT04-SE-pd-4 Chirp 512i data GeoMapApp
Dataset 37047 Public 09CCT04-SE-pd-5 Chirp 512i data processed AGC SEGY
10BIM04 SPCMSC MS Barrier Islands
Type ID Access Name Description
Dataset 30324 Public 10BIM04-SE-pd-1 Chirp 512i data navigation
Dataset 36513 Public 10BIM04-SE-pd-2 Chirp 512i data profiles
Dataset 30485 Public 10BIM04-SE-pd-3 Chirp 512i data GIS
Dataset 37344 Public 10BIM04-SE-pd-4 Chirp 512i data GeoMapApp
Dataset 30325 Public 10BIM04-SE-pd-5 Chirp 512i data agc SEGY
10CCT02 SPCMSC Horn Island, MS to Dauphin Island, AL
Type ID Access Name Description
Dataset 37874 Public 10CCT02-SE-pd-1 Chirp 512i data navigation
Dataset 37870 Public 10CCT02-SE-pd-2 Chirp 512i data profiles
Dataset 37872 Public 10CCT02-SE-pd-3 Chirp 512i data GIS
Dataset 37871 Public 10CCT02-SE-pd-4 Chirp 512i data GeoMapApp
Dataset 37873 Public 10CCT02-SE-pd-5 Chirp 512i data agc SEGY
10CCT03 SPCMSC Horn Island, MS to Dauphin Island, AL
Type ID Access Name Description
Dataset 37878 Public 10CCT03-SE-pd-1 Chirp 512i data navigation
Dataset 37868 Public 10CCT03-SE-pd-2 Chirp 512i data profiles
Dataset 37875 Public 10CCT03-SE-pd-3 Chirp 512i data GIS
Dataset 37869 Public 10CCT03-SE-pd-4 Chirp 512i data GeoMapApp
Dataset 37876 Public 10CCT03-SE-pd-5 Chirp 512i data agc SEGY
11TST05 SPCMSC Tampa Bay, FL
11TST07 SPCMSC St. Petersburg, FL
12TST05 SPCMSC Offshore St. Pete Beach
2014-303-FA SPCMSC Fire Island, NY
2014-317-FA SPCMSC Breton Island, Chandeleur Islands, Louisiana, Gulf of Mexico
Type ID Access Name Description
Dataset 19363 Public 14BIM05-SE-rd-1 Raw chirp SEGY data
2015-330-FA SPCMSC Dauphin Island, Alabama, Gulf of Mexico
2016-342-FA SPCMSC Cape Canaveral, FL
Type ID Access Name Description
Dataset 26835 Public Canaveral_CCU2016_Chirp_jpg.zip Chirp subbottom profile images
Dataset 26834 Public Canaveral_CCU2016_Chirp_segy.zip Chirp subbottom profile data
2017-305-FA SPCMSC St. Petersburg, Florida
2018-322-FA SPCMSC Fire Island National Seashore, Long Island, NY
Type ID Access Name Description
Dataset 28031 Public 2018-322-FA_arc.zip Survey trackline locations
Dataset 28030 Public 2018-322-FA_nav.zip Survey navigation data
Dataset 28029 Public 2018-322-FA_seisimag.zip Processed subbottom profile images
2018-323-FA SPCMSC 7 Mile Island, New Jersey
2018-324-FA SPCMSC Rockaway Beach, New York
2019-332-FA SPCMSC Cedar Island, VA, United States, Atlantic Ocean
Type ID Access Name Description
Dataset 38227 Public 2019-332-FA_gis Geospatial data
Dataset 38225 Public 2019-332-FA_nav Navigation data
Dataset 38224 Public 2019-332-FA_segy Digital chirp subbottom trace data
Dataset 38226 Public 2019-332-FA_seisimag Processed subbottom profile images
2019-333-FA SPCMSC Rockaway Beach, NY, United States, Atlantic Ocean
Type ID Access Name Description
Dataset 38886 Public 2019-333-FA_gis.zip Geospatial files representing the subbottom profile location data
Dataset 38617 Public 2019-333-FA_segy.zip Digital chirp subbottom trace data (.sgy)
Dataset 38619 Public 2019-333-FA_seisimag.zip Processed subbottom profile images (.gif)
2021-326-FA SPCMSC USACE Field Research Facility, Duck, NC, Atlantic Ocean
2022-309-FA SPCMSC Seven-Mile Island, New Jersey, Cape May
2022-326-FA SPCMSC USACE, Field Research Facility