| Abstract: | This product "Digital spatial data for predicted nitrate and arsenic concentrations in basin-fill aquifers of the Southwest Principal Aquifers study area" is a 1:250,000-scale vector spatial dataset developed as part of a regional Southwest Principal Aquifers (SWPA) study (Anning and others, 2012). The study examined the vulnerability of basin-fill aquifers in the southwestern United States to nitrate contamination and arsenic enrichment. Statistical models were developed by using the random forest classifier algorithm to predict concentrations of nitrate and arsenic across a model grid that represents local- and basin-scale measures of source, aquifer susceptibility, and geochemical conditions. |
| Genre: | USGS Numbered Series |
| ProdID: | 70039842 |
| Citation Author: | McKinney, Tim S.; Anning, David W. |
| Citation Contributing Office: | Utah Water Science Center |
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| Citation Language: | English |
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| Citation LatN: | 0430000 |
| Citation LatS: | 0312000 |
| Citation LonE: | -1050000 |
| Citation LonW: | -1242400 |
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| Citation No Pagination: | |
| Citation Number Of Pages: | 10 |
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| Citation Phsyical Description: | iv, 2 p.; Geospatial data and metadata; SIR 2012-5065; DS 697 |
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| Citation Public Comments: | National Water-Quality Assessment Program |
| Citation Publisher: | U.S. Geological Survey |
| Citation Series: | Data Series |
| Citation Series Code: | DS |
| Citation Series Number: | 698 |
| Citation Search Results Text: | Digital spatial data for predicted nitrate and arsenic concentrations in basin-fill aquifers of the Southwest Principal Aquifers study area; 2012; DS; 698; McKinney, Tim S.; Anning, David W. |
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| Citation Year: | 2012 |
| Type: | citation/reference |
| Text: | Digital spatial data for predicted nitrate and arsenic concentrations in basin-fill aquifers of the Southwest Principal Aquifers study area; 2012; DS; 698; McKinney, Tim S.; Anning, David W. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/ds_698.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/ds/698/ |
| URL (DOCUMENT): | http://pubs.usgs.gov/ds/698/pdf/ds698.pdf |
| Date Other: | Fri, 7 Sep 2012 00:00 -0500 |
| Publisher: | U.S. Geological Survey |
