The SEG-Y format seismic files and SEG-P1 format navigation file contain all the information necessary for loading the data onto a seismic interpretation workstation.
U.S. Geological Survey/Geologic Division/Central Energy Research Team, 2001, FOUR REGIONAL SEISMIC LINES: NATIONAL PETROLEUM RESERVE-ALASKA (SUPPLEMENT TO U. S. Geological Survey Open File Report 00-286), by John J. Miller, Warren F. Agena, Myung W. Lee, Frederick N. Zihlman, John A. Grow, David J. Taylor, Michele Killgore and Harold Oliver.
Direct_Spatial_Reference: Survey Notes; calculated latitude and longitude for each shotpoint.
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.00001. Longitudes are given to the nearest 0.00001. Latitude and longitude values are specified in Decimal degrees.
Miller, John J.
USGS/Geologic Division/Central Region Energy Team
Geophysicist
USGS Energy Team
Denver, CO 80225-0046
USA
303-236-5752 (voice)
303-236-8822 (FAX)
jmiller@usgs.gov
The data and associated support information contained on this Internet site are the processed data set from 4 regional seismic lines (736 line-miles) recorded in the National Petroleum Reserve - Alaska (NPRA) from 1974 through 1981. The information is a supplement to 22 additional lines contained on the CD-ROM publication OFR 00-286 and are sufficient to allow the user to load the data onto an interactive seismic interpretation workstation and interpret the data.
Geophysical Services, Incorporated (GSI) under contract to the Dep, Unknown, Unpublished.
The accuracy of field data conform to digital seismic data recording standards, commercially available between 1974 and 1981. The reprocessed data conform to accuracy in digital seismic data processing techniques and algorithms commonly available in 1999 through 2000.
The latitude and longitude of each shotpoint location was surveyed using a plane-table alidade by the contractor that recorded the data.
The elevation of the ground at each shotpoint location was surveyed using a plane-table alidade by the contractor that recorded the data. The data were processed using these elevations, and datum corrections were calculated using an assumed near surface velocity of 10,000 feet per second. Final datum of all seismic lines is sea level. Reflections on the seismic lines tie in both travel-time and waveform at all line intersections.
Each seismic line processed is through the time migration. These four lines, when combined with the 22 lines contained on OFR 00-286 comprise a complete data set in a nominal 20 x 20 mile grid covering the entire NPRA. Sufficient supporting data are included (survey coordinates, graphic images of the location map and individual seismic lines), to allow the user to load the data onto an interactive seismic interpretation workstation and interpret the data.
Not Applicable
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Please recognize the U.S. Geological Survey (USGS) as the source of this information. This Internet publication is prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof nor any of their employees makes any warranty, expressed or implied, or assumes any legal responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. Although all data and software published on this Internet site have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials.
U.S.G.S.
<http://geology.cr.usgs.gov/pub/open-file-reports/ofr-01-0337/> USA
303-236-5752 (voice)
303-236-8822 (FAX)
jmiller@usgs.gov
- Hours_of_Service: unlimited
Internet Site - Four regional seismic lines, National Petroleum Reserve - Alaska, provided as a supplement to the 22 lines contained on CD-ROM publication OFR 00-286. All data were reprocessed using post-stack processing techniques. Processed, digital seismic data in SEG-Y format and navigation information in SEG-P1 format sufficient to allow the user to load the data onto an interactive seismic interpretation workstation. Also included for quality control are digital images of seismic line displays in PDF format, a digital map in PDF format and an ASCII text file containing cross references of original line number and shotpoint number of the component lines of each regional line.
Although all data and software published on this CD-ROM have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data, software, or related materials.
Data format: | SEG-Y (Society of Exploration Geophyicists, Digital Exchange Format "Y") |
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Media you can order: |
None
(format None)
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Online only. This data set is a supplement to that contained on CD-ROM publication OFR 00-286. To order the CD-ROM, contact U.S.G.S. Earth Science Information Center (ESIC) by calling 1-888-ASK-USGS (1-888-275-8747) or by mail at: Box 25286, Building 810, Denver Federal Center, Denver, CO, 80225-0286
To process or interpret the data you must have software capable of reading SEG-Y format seismic data disk images.
Miller, John J.
U.S. Geological Survey - Central Region - Geologic Division
Geophysicist
Bldg. 25, Rm. 2827-F, MS-939, Denver Federal Center
Denver, CO 80225-0046
USA
303-236-5752 (voice)
303-236-8822 (FAX)
jmiller@usgs.gov