Skip past header information
USGS Logo with Link to USGS Home Page
Open-File Report 02-045, Chirp Subbottom Data, Northeastern Gulf of Mexico, Disc 1

Title Page - Introduction - Cruise Report - Equipment - Chirp Data - Shotpoint Maps - Navigation - Pictures - Metadata

Navigation

Seismic Shot Navigation Data


Seismic Shot Navigation

The seismic shot navigation is received by the differential GPS system (DGPS), sent directly to the ISIS acquisition system, and recorded in the SEG-Y header of each file. The navigation is later extracted from the header with the shot numbers in a corresponding field. These navigation data have been checked for errors, and are assumed to be correct.

The navigation is stored in ASCII files using eight fields separated by commas. These shotpoint navigation files are located in the shotnav sub-directory.

 

Shotpoint Maps: Entire Area, Madison-Swanson, Steamboat Lumps, Transit Area

Shotpoint Navigation File (ASCII): Madison-Swanson, Steamboat Lumps, Transit Area

Shotpoint Navigation File (ASCII) Interval 1000:Madison-Swanson, Steamboat Lumps, Transit Area

Shotpoint SEG-P1 Files: Madison-Swanson, Steamboat Lumps, Transit Area

skip footer

Title Page - Introduction - Cruise Report - Equipment - Chirp Data - Shotpoint Maps - Navigation - Pictures - Metadata