Digital bathymetric data for the south part of Great Salt Lake, UT

20151003 14400500 FALSE GSLSBathy 002 344658.968804 405365.562554 4502559.999997 4566591.499997 1 0.000 Projected GCS_North_American_1983 Linear Unit: Meter (1.000000) NAD_1983_UTM_Zone_12N <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/3.1.0'><WKT>PROJCS["NAD_1983_UTM_Zone_12N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-111.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26912]]</WKT><XOrigin>-5120900</XOrigin><YOrigin>-9998100</YOrigin><XYScale>450445547.3910538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>26912</WKID><LatestWKID>26912</LatestWKID></ProjectedCoordinateSystem> 20231011 07525800 20231011 07525800 FGDC CSDGM Metadata ESRI ArcCatalog 9.3.1.3500 en The U.S. Geological Survey, in cooperation with the Utah Department of Natural Resources, Division of Wildlife Resources, collected bathymetric data for the south part of Great Salt Lake during 2002-04 using a single-beam, high-definition fathometer and real-time differential global positioning system. About 7.6 million depth measurements were collected along more than 930 miles (1,690 kilometers) of survey transects. Sound-velocity profiles were obtained in conjunction with the bathymetric data to provide time-of-travel corrections to the depth calculations. Data were processed with commercial hydrographic software and exported into geographic information system (GIS) software for mapping and calculation of area and volume. Area and volume calculations show a maximum area of about 508,000 acres (2,056 square kilometers) and a maximum volume of about 9,257,000 acre-feet (11.42 cubic kilometers) at a water-surface altitude of 4,200 feet (1,280 meters). Minimum water-surface altitude of the south part of Great Salt Lake is just below 4,167 feet (1,279 meters) in the area just south of the Union Pacific railroad causeway halfway between Promontory Point and the western edge of the lake. At this altitude, and continuing up to about 4,176 feet (1,279 meters), the south part of the lake is separated into two areas by a ridge extending from Promontory Point to Hat Island. These data have been published in Baskin, R.L., and Allen, D.V., 2005, Bathymetric map of the south part of Great Salt Lake, Utah: U.S. Geological Survey Scientific Investigations Map 2894, published online at http://pubs.usgs.gov/sims/2005/2894/. Supplemental information can be found in Baskin, R.L., 2005, Calculation of area and volume for the south part of Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2005–1327, available online at http://pubs.usgs.gov/of/2005/1327/. These data were collected to better define the physical characteristics of the south part of the lake, define the areal extent of a deep high-density brine layer, provide data for improved calculation of area and volume, and provide lake-bottom contour information that could be used in developing a general circulation model of the lake. This bathymetric study was part of a larger, long-term, multi-discipline, cooperative study designed to (1) define the physical constraints, circulation, and mixing rates of Great Salt Lake; (2) determine the nutrient (nitrogen and phosphorous species) budget of the lake, and (3) quantify the occurrence and distribution of anthropogenic heavy metals, trace elements, and synthetic organic compounds in the lake. Bathymetric data for the north part of Great Salt Lake can be found in Baskin, Robert L., and Turner, Jane, 2006, Bathymetric map of the north part of Great Salt Lake, Utah: U.S. Geological Survey Scientific Investigations Map 2954, published online at http://pubs.usgs.gov/sim/2006/2954/. Supplemental information can be found in Baskin, 2006, Calculation of area and volume for the north part of Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2006-1359, published online at http://pubs.usgs.gov/of/2006/1359/. Digital data are available at ... citation here... Baskin, Robert L. September 2007 Digital bathymetric data for the south part of Great Salt Lake, UT GSLS_Bathy vector digital data http://pubs.usgs.gov/ds/2007/XXXXX Allen, David V. 12:00am Version 1 U.S. Geological Survey Data Series DS XXXXX Reston, VA U.S. Geological Survey publication date 2007 12:00am Complete None planned -112.853645 -112.119638 41.245194 40.659294 344658.968804 405365.562554 4502559.999997 4566591.499997 4167 4200 feet Bathymetry Lake Contours Salt Lake Great Salt Lake Utah Salt Lake City None - data available for use by public. These data were collected to better define the physical characteristics of the south part of the lake, define the areal extent of a deep high-density brine layer, provide data for improved calculation of area and volume, and provide lake-bottom contour information that could be used in developing a general circulation model of the lake. These data are not to be used for navigational use. These data are not intended for use at scales greater than 1:100,000. Although this Federal Geographic Data Committee (FGDC) compliant metadata file is intended to document the data set in nonproprietary form this metadata file may include some ArcGIS-specific terminology. Shapefile Baskin, R.L., and Allen, D.V., 2007, Digital bathymetric data for the south part of Great Salt Lake, Utah: U.S. Geological Survey Data series Report xxxx, Salt Lake City, UT, August 2007. Data available at http://pubs.usgs.gov/ds/2007/XXXX Robert L. Baskin U.S. Geological Survey Supervisory Hydrologist mailing address

2329 West Orton Circle

West Valley City UT 84119 USA 801-908-5011 801-908-5001 rbaskin@usgs.gov 8:00am - 4:30pm MST Unclassified Esri ArcGIS 13.1.2.41833 GSLSBathy -112.853645 -112.119638 41.245194 40.659294 1 -112.853645 -112.119638 41.245194 40.659294 1 1 -112.853645 -112.119638 41.245194 40.659294 002 The U.S. Geological Survey, in cooperation with the Utah Department of Natural Resources, Division of Wildlife Resources, collected bathymetric data for the south part of Great Salt Lake during 2002-04 using a single-beam, high-definition fathometer and real-time differential global positioning system. About 7.6 million depth measurements were collected along more than 930 miles (1,690 kilometers) of survey transects. Sound-velocity profiles were obtained in conjunction with the bathymetric data to provide time-of-travel corrections to the depth calculations. Data were processed with commercial hydrographic software and exported into geographic information system (GIS) software for mapping and calculation of area and volume. Area and volume calculations show a maximum area of about 508,000 acres (2,056 square kilometers) and a maximum volume of about 9,257,000 acre-feet (11.42 cubic kilometers) at a water-surface altitude of 4,200 feet (1,280 meters). Minimum water-surface altitude of the south part of Great Salt Lake is just below 4,167 feet (1,279 meters) in the area just south of the Union Pacific railroad causeway halfway between Promontory Point and the western edge of the lake. At this altitude, and continuing up to about 4,176 feet (1,279 meters), the south part of the lake is separated into two areas by a ridge extending from Promontory Point to Hat Island. These data have been published in Baskin, R.L., and Allen, D.V., 2005, Bathymetric map of the south part of Great Salt Lake, Utah: U.S. Geological Survey Scientific Investigations Map 2894, published online at http://pubs.usgs.gov/sims/2005/2894/. Supplemental information can be found in Baskin, R.L., 2005, Calculation of area and volume for the south part of Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2005–1327, available online at http://pubs.usgs.gov/of/2005/1327/.These data were collected to better define the physical characteristics of the south part of the lake, define the areal extent of a deep high-density brine layer, provide data for improved calculation of area and volume, and provide lake-bottom contour information that could be used in developing a general circulation model of the lake. This bathymetric study was part of a larger, long-term, multi-discipline, cooperative study designed to (1) define the physical constraints, circulation, and mixing rates of Great Salt Lake; (2) determine the nutrient (nitrogen and phosphorous species) budget of the lake, and (3) quantify the occurrence and distribution of anthropogenic heavy metals, trace elements, and synthetic organic compounds in the lake.002Great Salt LakeUtahSalt Lake City en FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time Robert L. Baskin U.S. Geological Survey mailing address West Valley City UT 84119

2329 West Orton Circle

USA 801-908-5011 Supervisory Hydrologist 20100629 None None Unclassified ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset Downloadable Data U.S. Geological Survey 2.025 2.025 002 withheld Local Area Network 2.025 Shapefile Shapefile 0.000 Vector Simple FALSE 0 FALSE FALSE GCS_North_American_1983 NAD_1983_UTM_Zone_12N coordinate pair meters 0.000000 0.000000 North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Explicit elevation coordinate included with horizontal coordinates 0.000010 National Geodetic Vertical Datum of 1929 feet Land survey datum feet Attribute values NAD_1983_UTM_Zone_12N EPSG 6.11(3.0.1) 0 GSLSBathy Feature Class 0 FID FID OID 4 0 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. OBJECTID OBJECTID Integer 9 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. 9 0 Shape Shape Geometry 0 0 0 Feature geometry. ESRI Coordinates defining the features. Contours ELEVATION ELEVATION Double 19 Elevation of lake bottom, in feet Calculated from original data 1 foot See Baskin, R.L., and Allen, D.V., 2005, Bathymetric map of the south part of Great Salt Lake, Utah: U.S. Geological Survey Scientific Investigations Map 2894. Supplemental information can be found in Baskin, R.L., 2005, Calculation of area and volume for the south part of Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2005–1327, available online at http://pubs.usgs.gov/of/2005/1327/. 0 0 ELEVMETERS ELEVMETERS Double 19 Elevation of lake bottom, in meters Calculated from original data 0.3048 Meters See Baskin, R.L., and Allen, D.V., 2005, Bathymetric map of the south part of Great Salt Lake, Utah: U.S. Geological Survey Scientific Investigations Map 2894. Supplemental information can be found in Baskin, R.L., 2005, Calculation of area and volume for the south part of Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2005–1327, available online at http://pubs.usgs.gov/of/2005/1327/. 0 0 Shape_Leng Shape_Leng Double 19 0 0 Temp Temp Double 19 0 0 Five_Foot Five_Foot SmallInteger 4 4 0 Digital bathymetric contours for Great Salt Lake, Utah. See Baskin, R.L., and Allen, D.V., 2005, Bathymetric map of the south part of Great Salt Lake, Utah: U.S. Geological Survey Scientific Investigations Map 2894. Supplemental information can be found in Baskin, R.L., 2005, Calculation of area and volume for the south part of Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2005–1327, available online at http://pubs.usgs.gov/of/2005/1327/. Elevation of lake bottom surface in feet and meters above mean sea level. 20231011 Attribute have been checked. Original contour data were generated at 1 foot intervals and converted to meters by multiplying by 0.3048. The logical consistency topologically is clean. Chain-node topology is present. Using ArcGIS tools and routines, all lines were checked for node errors, overshoots, undershoots, dangles, intersections, and duplicate features. Elevation in feet were convereted to meters by multiplying by 0.3048. Data set is complete. No additional updates are planned. This database contains source material of widely varying scale. National Map Accuracy Standards (NMAS) established for the United States in 1947 (U.S. Geological Survey, 1988) state that no more than 10 percent of features shall be more than 1/50th of an inch from their intended location on maps of scale smaller than 1:20,000. National Standards for Spatial Data Accuracy (NSSDA) published by the Federal Geographic Data Committee (FGDC) in 1998 relate the NMAS to the digital geospatial data standard by multiplying the NMAS accuracy by a factor of 1.1406 resulting in expected error in the geospatial data at standard mapping scales as follows: >1: 24,000-scale map - 14 meters >1: 62,500-scale map - 36 meters >1: 100,000-scale map - 58 meters >1: 250,000-scale map - 145 meters >1: 500,000-scale map - 290 meters >1:1,000,000-scale map - 579 meters Differentially corrected GPS data were acquired for all data obtained during this study and positional accuracy for the original data is estimated to be 1 meter (3.28 feet) or less. However, errors resulting from processing of the data can impact the accuracy of data. Errors resulting from the data proccessing are unknown. For details of the data collection process and analysis, please refer to Baskin, R.L., 2005, Calculation of area and volume for the south part of Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2005–1327, published online at http://pubs.usgs.gov/of/2005/1327/ Vertical accuracy of the data is variable due to multiple sources of data. For additional information, please refer to Baskin, R.L., 2005, Calculation of area and volume for the south part of Great Salt Lake, Utah: U.S. Geological Survey Open-File Report 2005–1327, published online at http://pubs.usgs.gov/of/2005/1327/ publication date Dataset copied. withheld 20070817 15034000 n/a