Water gun vs air gun: A comparison
Marine Geophysical Research
By: D. R. Hutchinson and R. S. Detrick
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Abstract
The water gun is a relatively new marine seismic sound source that produces an acoustic signal by an implosive rather than explosive mechanism. A comparison of the source characteristics of two different-sized water guns with those of conventional air guns shows the the water gun signature is cleaner and much shorter than that of a comparable-sized air gun: about 60-100 milliseconds (ms) for an 80-in3. (1.31-liter (I)) water gun compared with several hundred ms for an 80-in3. (1.31-1) air gun. The source spectra of water guns are richer in high frequencies (>200 Hz) than are those of air guns, but they also have less energy than those of air guns at low frequencies. A comparison between water gun and air gun reflection profiles in both shallow (Long Island Sound)-and deep (western Bermuda Rise)-water settings suggests that the water gun offers a good compromise between very high resolution, limited penetration systems (e.g. 3.5-kHz profilers and sparkers) and the large volume air guns and tuned air gun arrays generally used where significant penetration is required. ?? 1984 D. Reidel Publishing Company.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Water gun vs air gun: A comparison |
| Series title | Marine Geophysical Research |
| DOI | 10.1007/BF00286531 |
| Volume | 6 |
| Issue | 3 |
| Year Published | 1984 |
| Language | English |
| Publisher location | Kluwer Academic Publishers |
| Contributing office(s) | Woods Hole Coastal and Marine Science Center |
| Description | 16 p. |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Marine Geophysical Researches |
| First page | 295 |
| Last page | 310 |
| Google Analytic Metrics | Metrics page |