Online Links:
Online Links:
This data set contains a grid representing the total Quaternary sediment thickness within the St. Clair River between Michigan and Ontario. These data are used to assess the relation between geologic Framework and morphologic changes in the St. Clair River channel.
Online Links:
Online Links:
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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.
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 (version 9.0) file contains a grid and ASCII raster file of the Quaternary sediment thickness within the St. Clair River between Michigan and Ontario, Canada in format AIG (version ArcGIS 9.2) Esri binary grid Size: 1 |
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Network links: |
https://pubs.usgs.gov/of/2010/1035/gis_catalog/geology/qthick.zip |
Data format: | This WinZip (version 9.0) file contains a grid and ASCII raster file of the Quaternary sediment thickness within the St. Clair River between Michigan and Ontario, Canada in format AAIGrid (version ArcGIS 9.2) Esri ASCII grid Size: 1 |
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Network links: |
https://pubs.usgs.gov/of/2010/1035/gis_catalog/geology/qthick.zip |
The grid contained in the qthick.zip file is available as an ESRI Binary grid and an ASCII grid with an ESRI header. However, the folder structure within qthick.zip is critical to proper use of the ESRI binary grid.
To utilize these data, the user must have a GIS software package capable of reading ESRI Binary grids or ASCII grids with ESRI headers, or be able to manipulate an ASCII matrix with a geospatial header. The ASCII raster files can be easily converted to ESRI grid format in either ArcView with Spatial Analyst extension (Import Data Source: ASCII Raster) or ArcGIS with Spatial Analyst extension (ASCII to Raster). The user should select floating point grid (as opposed to integer grid) when converting the data.