Online Links:
Online Links:
| Range of values | |
|---|---|
| Minimum: | 1 |
| Maximum: | 8966 |
| Units: | shot |
| Range of values | |
|---|---|
| Minimum: | -75.202086 |
| Maximum: | -75.062936 |
| Units: | decimal degrees |
| Range of values | |
|---|---|
| Minimum: | 38.569244 |
| Maximum: | 38.618986 |
| Units: | decimal degrees |
| Range of values | |
|---|---|
| Minimum: | 2010 |
| Maximum: | 2010 |
| Units: | year |
The purpose of the data layer is to provide all of the unique shot point navigation associated with the seismic-reflection profiles collected on U.S. Geological Survey Field Activity Number 2010-006-FA. This information can help correlate the seismic-reflection profiles with other features and data in the GIS. This clean, unique shot point navigation is also used as the navigation when loading the seismic data into a digital interpretation software package.
# read SEG-Y standard file and convert to SU native format
echo " "
echo "Read SEG-Y file and output SU native format..."
echo " "
# Set endian=0 for Intel or DEC or endian=1 for Sun, SGI, MAC...
segyread tape=$1.sgy verbose=1 vblock=1000 conv=1 endian=0 | \
segyclean > $1.su
# extract SEG-Y trace header values (ffid, source x, source y, year,
# julian day, hour, minute, second, source depth, source elevation)
echo " "
echo "Extracting SEG-Y trace header words... (ffid, source X, source Y, year, julian day, hour, minute, seconds)"
echo " "
echo " "
echo "Writing shot navigation files to nav directory..."
echo " "
sugethw key=tracl,sx,sy,year,day,hour,minute,sec output=ascii < $1.su | \
grep tracl | sed 's/=/ /g' | sed 's/ //g' | \
awk '{FS=" "} {OFS=" "} {printf "%6s%7s\t%5s\t%6s\t%9.6f\t%9.6f\t%4s\t%3s:%02d:%02d:%02d\n", \
$4,$6,line,$2,$4/360000,$6/360000,$8,$10,$12,$14,$16} ' line=$1 - > ../nav/$1.temp.txt
sort -b -g -um -k 1,2 ../nav/$1.temp.txt | cut -f2-7 > ../nav/$1.txt rm ../nav/$1.temp.txt
This process step and all subsequent process steps were performed by the same person: VeeAnn A. Cross.
Person who carried out this activity:
Online Links:
Online Links:
Are there legal restrictions on access or use of the data?Access_Constraints: None.
Use_Constraints:The public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Neither the U.S. government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
| Data format: | This WinZip (v. 14) file contains the point shapefile, CSV file used to create the shapefile, as well as the associated metadata files. in format Shapefile (version ArcGIS 9.2) Esri shapefile Size: 0.6 |
|---|---|
| Network links: |
https://pubs.usgs.gov/of/2011/1039/data/navigation/seismics/ir_seisnav.zip https://pubs.usgs.gov/of/2011/1039/html/ofr2011-1039-catalog.html https://doi.org/10.3133/ofr20111039 |
| Data format: | This WinZip (v. 14) file contains the point shapefile, CSV file used to create the shapefile, as well as the associated metadata files. in format CSV (version information unavailable from original metadata) Comma separated values. Size: 0.6 |
|---|---|
| Network links: |
https://pubs.usgs.gov/of/2011/1039/data/navigation/seismics/ir_seisnav.zip https://pubs.usgs.gov/of/2011/1039/html/ofr2011-1039-catalog.html https://doi.org/10.3133/ofr20111039 |
This zip file contains data available in Esri point shapefile format. The user must have software capable of uncompressing the zip file and reading/displaying the shapefile.