U.S. Geological Survey, 2010, 08016_Chirp_100SHT.SHP: Shot point navigation at 100-shot intervals collected by the U.S. Geological Survey within the St. Clair River between Michigan and Ontario, Canada, 2008 (ESRI VECTOR SHAPEFILE): Open-File Report 2010-1035, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.This is part of the following larger work.Online Links:
- htpp://pubs.usgs.gov/of/2010/1035/gis_catalog/tracklines/chirp_sht.zip
- <https://pubs.usgs.gov/of/2010/1035/html/gis.html>
Denny, Jane F. , and Foster, David S. , 2010, Geophysical data collected from the St. Clair River between Michigan and Ontario, Canada, 2008-016-FA: Open-File Report 2010-1035, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is D_WGS_1984.
The ellipsoid used is WGS_1984.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257224.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Range of values | |
---|---|
Minimum: | 375913.25 |
Maximum: | 385723.08 |
Units: | meters |
Range of values | |
---|---|
Minimum: | 4723670.96 |
Maximum: | 4763486.66 |
Units: | meters |
Range of values | |
---|---|
Minimum: | -82.513954 |
Maximum: | -82.402206 |
Units: | decimal degrees |
Range of values | |
---|---|
Minimum: | 42.65559 |
Maximum: | 43.015228 |
Units: | decimal degrees |
Naming convention for SEG-Y Chirp data. Format: 0001_150_1424_3.5kHz_000, where '0001' is line number, '_150' is julian day, '_1424' is start time in hours and minutes, '_3.5kHz' is frequency of system, and '000' is system file name (default)
Range of values | |
---|---|
Minimum: | 100 |
Maximum: | 65500 |
Units: | shot |
Value | Definition |
---|---|
2008 | Calendar year of data acquisition for USGS cruise 08016 (2008) |
Range of values | |
---|---|
Minimum: | 150 |
Maximum: | 154 |
Units: | Julian day |
Range of values | |
---|---|
Minimum: | 12 |
Maximum: | 19 |
Units: | hour (24-hr: UTC) |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 59 |
Units: | minute (24-hr clock, UTC) |
Range of values | |
---|---|
Minimum: | 0 |
Maximum: | 59 |
Units: | second (24-hr clock, UTC) |
Value | Definition |
---|---|
08016 | USGS Cruise Identification Number, where the first two digits represent the calendar year and the last three digits represent the cruise identification number |
508-548-8700 x2311 (voice)
508-457-2310 (FAX)
jdenny@usgs.gov
This data set contains shot point navigation at 100 shot intervals for approximately 80 km of Chirp data collected by the U.S. Geological Survey during cruise 08016 within the St. Clair River between Michigan and Ontario, Canada, 2008. The shot point data are provided to correlate with the JPEG images of seismic profiles.
Seismic Unix 4.1; Proj 4.6.0
Person who carried out this activity:
508-548-8700 x 2271 (voice)
508-457-2310 (FAX)
dfoster@usgs.gov
Person who carried out this activity:
508-548-8700 x2271 (voice)
508-457-2310 (FAX)
dfoster@usgs.gov
Person who carried out this activity:
508-548-8700 x 2311 (voice)
508-457-2310 (FAX)
jdenny@usgs.gov
Foster, David S. , and Denny, Jane F. , 2009, Quaternary Geologic Framework of the St. Clair River between Michigan and Ontario, Canada: Open-File Report 2009-1137, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.Online Links:
Stockwell, John, 2007, Seismic Un*x: Center for Wave Phenomena - Colorado School of Mines, Golden, CO.Online Links:
Barry, K.M., Cavers, D.A., and Kneale, C.W., 1975, Report on recommended standards for digital tape formats: Geophysics v. 40, no. 02, p. 344-352., Society of Exploration Geophysicists (SEG), Houston, TX.Online Links:
All attributes were evaluated during processing as standard quality control to ensure attributes contain accurate and relevant information and values.
Differential Global Positioning System (DGPS) navigation data were acquired with a Communications Systems International (CSI), Inc. LGBX Pro receiver and sent to Knudsen acquisition software, SounderSuite, where Chirp sub-bottom data with a peak frequency of 3.5 kHz were recorded in Society of Exploration Geophysicists Y (SEG-Y) format (Barry and others, 1975) with DGPS logged to the SEG-Y trace headers.
DGPS accuracy is 1 to 3 meters, depending on the distance from a US Coast Guard coastal repeater station (<http://www.navcen.uscg.gov/>). DGPS accuracy is 1 to 3 meters, depending on the distance from a US Coast Guard coastal repeater station (<http://www.navcen.uscg.gov/>).
Valid shot point navigation at 100-shot intervals for all Chirp seismic data were used to generate this shapefile.
Seismic shot-point navigation was generated from unique shot navigation for the seismic system. The unique shot navigation data were evaluated during processing for spurious points; all spurious points were removed prior to generating the trackline navigation. The unique shot point navigation was downsample to produce the 100 shot point navigation.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- 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.
508-548-8700 x2311 (voice)
508-457-2310 (FAX)
jdenny@usgs.gov
Downloadable Data
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: | WinZip file containing Chirp unique, 100 and 500 shot point navigation data collected by the U.S. Geological Survey within the St. Clair River between Michigan and Ontario, Canada, 2008 in format WinZip (version 9.0) Size: 1051 KB |
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Network links: |
htp://pubs.usgs.gov/of/2010/1035/gis_catalog/tracklines/Chirp_sht.zip |
This zip file contains data available in Environmental Systems Research Institute (ESRI) point shapefile format and a comma separated value (*csv) file containing unique shot point navigation. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file and a program capable of reading a *csv file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing the data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.
508-548-8700 x2311 (voice)
508-457-2310 (FAX)
jdenny@usgs.gov