Dataset description: Chirp sub-bottom data acquired along the Cascadia margin during USGS field activity 2019-024-FA

Chirp sub-bottom data were collected by the U.S. Geological Survey in collaboration with the University of Washington (UW) in the summer of 2019 along the Cascadia submarine forearc offshore Oregon and Washington.

Version	1
Keywords	sub-bottom profiling, geospatial datasets, marine geophysics
Data types	Sub Bottom Profiler
Format	SEG-Y;
Amount	57000 MB

Contacts

Contact	Alicia F Balster-gee PCMSC_data@usgs.gov

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Location of materials and files

Public files	https://doi.org/10.5066/P96ZBXK8
Metadata	https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/CMGDS_DR_tool/DR_P96ZBXK8/2019-024-FA.chirp.metadata.xml Outline - Questions and answers - Text - XML

Activities and equipment

Activity	Equipment
2019-024-FA	Edgetech 512i CHIRP (PCMSC) Edgetech SB-512i Chirp subbottom profiler owned by Santa Cruz
2019-654-FA	512 chirp is a seismic reflection instrument that uses sound to examine the layering of sedimentary strata on and below the sea floor. The Chirp being used in this project is a modified version of the Subscan 512 made by Edgetech. The noise it makes actually sounds like a bird's chirp; the frequencies of the sound it produces are between 500 Hz and 12 kHz. The Chirp has two advantages that allow it to get excellent penetration (meaning it can see deep, like >50 m or >64 ft, into the seabed) and high resolution (meaning it can make out fine layering, layers

Activity

Equipment

2019-024-FA

Edgetech 512i CHIRP (PCMSC)

Edgetech SB-512i Chirp subbottom profiler owned by Santa Cruz

2019-654-FA

512 chirp

is a seismic reflection instrument that uses sound to examine the layering of sedimentary strata on and below the sea floor. The Chirp being used in this project is a modified version of the Subscan 512 made by Edgetech. The noise it makes actually sounds like a bird's chirp; the frequencies of the sound it produces are between 500 Hz and 12 kHz. The Chirp has two advantages that allow it to get excellent penetration (meaning it can see deep, like >50 m or >64 ft, into the seabed) and high resolution (meaning it can make out fine layering, layers