P1-13-LA Walker Ridge
Files
Navigation File
Download (8.0 MB)
Contact the NAMSS Team if you have trouble downloading the dataset.
General Information
Data Type
2D Multichannel Seismic
Data Acquisition System
Airgun and Streamer
Contributor
U.S. Geological Survey
Dates
Started on April 18, 2013, and ended on May 3, 2013.
Number of Tracklines
42
Distance Shot
444 km
Description
The U.S. Geological Survey led a seismic acquisition cruise in the Gulf of Mexico from April 18
to May 3, 2013, with the objectives of (1) achieving improved imaging and characterization at two
established gas hydrate study sites, and (2) refining geophysical methods for gas hydrate
characterization in other locations. We conducted this acquisition aboard the R/V Pelican, and used a
pair of 105/105-cubic-inch generator/injector air guns to provide seismic energy that we recorded using
a 450-meter 72-channel digital hydrophone streamer and 25 multicomponent ocean-bottom
seismometers.
Dataset Information
Processed Methods
Seismic Reflection
Processed Data Classes
Migration, Stack
Data File Formats
SEG-Y
Embedded Navigation
No
Data Class
Processed
Seismic Data Provenances
Digitally Acquired Digital SEG
Data Media
Online
History
On May 16, 2014, the dataset was published.
Navigation Information
Datum
World Geodetic System 1984 (WGS84)
Related Publications
Haines, S.S., Hart, P.E., Ruppel, C.D., O'Brien, T., Baldwin, W., White, J., Moore, E., Dal Ferro, P., and Lemmond, P., 2014, Cruise report for P1-13-LA, U.S. Geological Survey gas hydrates research cruise, R/V Pelican April 18 to May 3, 2013, deepwater Gulf of Mexico: U.S. Geological Survey Open-File Report 2014-1080, 33 p., http://dx.doi.org/10.3133/ofr20141080.
Miller, J.J., Agena, W.F., Haines, S.S., and Hart, P.E., 2016, Processing of multichannel seismic reflection data acquired in 2013 for seismic investigations of gas hydrates in the Gulf of Mexico: U.S. Geological Survey Open-File Report 2016-1037, 32 p., http://dx.doi.org/10.3133/ofr20161037.
Location
Tracklines 42 total
| Name | Length (km) | First SP | Last SP | First CDP | Last CDP |
|---|
| WR129 | 6 | 95 | 1,868 | -- | -- |
| WR133 | 6 | 95 | 1,878 | -- | -- |
| WR137 | 10 | 95 | 3,223 | -- | -- |
| WR137A | 10 | 95 | 3,187 | -- | -- |
| WR141 | 6 | 95 | 2,086 | -- | -- |
| WR205 | 6 | 95 | 2,024 | -- | -- |
| WR215 | 11 | 95 | 3,733 | -- | -- |
| WR223 | 11 | 95 | 3,590 | -- | -- |
| WR227 | 11 | 95 | 3,649 | -- | -- |
| WR228 | 12 | 95 | 3,795 | -- | -- |
| WR228A | 11 | 95 | 3,635 | -- | -- |
| WR229 | 12 | 95 | 3,864 | -- | -- |
| WR229A | 12 | 95 | 3,965 | -- | -- |
| WR229B | 3 | 95 | 1,030 | -- | -- |
| WR229C | 12 | 95 | 3,853 | -- | -- |
| WR230 | 11 | 95 | 3,631 | -- | -- |
| WR231 | 11 | 95 | 3,537 | -- | -- |
| WR233 | 11 | 95 | 3,544 | -- | -- |
| WR233A | 13 | 95 | 4,367 | -- | -- |
| WR237 | 11 | 95 | 3,510 | -- | -- |
| WR241 | 11 | 95 | 3,619 | -- | -- |
| WR301 | 23 | 95 | 7,308 | -- | -- |
| WR311 | 20 | 95 | 6,643 | -- | -- |
| WR312 | 12 | 95 | 3,987 | -- | -- |
| WR321 | 20 | 95 | 6,334 | -- | -- |
| WR321N | 12 | 95 | 3,949 | -- | -- |
| WR331 | 15 | 95 | 4,743 | -- | -- |
| WR331A | 13 | 95 | 4,316 | -- | -- |
| WR332 | 22 | 95 | 7,161 | -- | -- |
| WR332A | 15 | 95 | 4,918 | -- | -- |
| WR341 | 6 | 95 | 2,048 | -- | -- |
| WR341A | 5 | 95 | 1,790 | -- | -- |
| WR342 | 6 | 95 | 1,985 | -- | -- |
| WR342A | 6 | 95 | 2,062 | -- | -- |
| WR343 | 6 | 95 | 1,872 | -- | -- |
| WR344 | 10 | 95 | 3,204 | -- | -- |
| WR345 | 6 | 95 | 1,998 | -- | -- |
| WR346 | 10 | 95 | 3,203 | -- | -- |
| WR347 | 9 | 95 | 2,834 | -- | -- |
| WR348 | 6 | 95 | 1,961 | -- | -- |
| WRCSEMA | 9 | 95 | 2,845 | -- | -- |
| WRCSEMB | 10 | 95 | 3,331 | -- | -- |
Acquisition Parameters
| Name | Value |
|---|---|
| Field Activity Identifiers | P1-13-LA |
| Vessels | R/V Pelican |
| Number of channels recorded | 72 |
| Number of cables | 1 |
| Number of channels each cable | 72 |
| Cable length | 450 meters |
| Number of sources | 2 |
| Source volume | 105 cubic inches |
