{
 "culture": "en-US",
 "name": "BathymetryContour",
 "guid": "C82540F2-EA15-4C8A-9225-51E1A1878003",
 "catalogPath": "",
 "snippet": "Bathymetry depth contours for some lakes in Kansas. This is a dynamic service. Projection: WGS 1984 Web Mercator (auxiliary sphere). Spatial Reference: 3857.",
 "description": "\nBathymetry Data Collection Method (2006-2013):\n\nHigh precision sonar system, along with computer maps and global positioning systems, allow a dense pattern to be collected, with a location (latitude-longitude) coordinate for each depth measurement. The Kansas Biological Survey used a state-of-the-art, scientific-grade acoustic echosounding system from Biosonics Inc., Seattle, that integrates digital echosounding technology with a differential global positioning system (GPS) and real-time onscreen data preview.\n\nPrior to conducting a bathymetric survey, researchers create a series of transect lines for the reservoir to guide a boat during the survey. Transect lines are spaced 100-150 meters apart for federal reservoirs and more closely, 25-50 meters apart, for smaller state and local lakes. Using GPS as a guide, the boat echosounder follow the transects around and across the lake, collecting five depth measurements every second.\n\nAfter field acquisition of raw data, additional computer processing takes place at the Kansas Biological Survey offices. Researchers apply corrections to compensate for transducer depth. They also reference depth data to the lake elevation to create a file of lake bottom elevation values. The thousands of points of data are then interpolated to a surface, using mathematical models in a geographic information system, to create the bathymetric maps.\n\nBathymetric maps are representative of lake bottom contours at the time of the survey; the maps are not used for navigation, for any purpose relating to safety, or as professional survey reference. \n\nWater surface elevations listed for federal reservoirs are based on the normal operating water level as determined by the U. S. Army Corps of Engineers or the U. S. Bureau of Reclamtion. Water levels for the state and local reservoirs are based on the water surface elevation as determined by the Kansas Biological Survey on the date of that reservoir's bathymetric survey. All reservoirs areas, volumes and shoreline lengths are based on these water surface elevations.\n\nMajority of the funding was provided by the Kansas Water Office, the Kansas GIS Policy Board, and the Kansas Biological Survey.\n\nSeveral federal and state agencies contributed to the compilation of this dataset. GIS processing was done at the Kansas Biological Survey.\n\nNo constraints for the use of this dataset. However, when you use the data, please acknowledge the Kansas Biological Survey at the University of Kansas as appropriate.",
 "summary": "Bathymetry depth contours for some lakes in Kansas. This is a dynamic service. Projection: WGS 1984 Web Mercator (auxiliary sphere). Spatial Reference: 3857.",
 "title": "Lakes and Reservoirs in Kansas",
 "tags": [
  "bathymetry",
  "depth",
  "lakes",
  "lake bottom contours",
  "Kansas"
 ],
 "type": "Map Service",
 "typeKeywords": [
  "Data",
  "Service",
  "Map Service",
  "ArcGIS Server"
 ],
 "thumbnail": "thumbnail/thumbnail.png",
 "url": "",
 "extent": [
  [
   -99.5013558679318,
   37.1496805699359
  ],
  [
   -94.6663606184656,
   39.9483541002516
  ]
 ],
 "spatialReference": "WGS_1984_Web_Mercator_Auxiliary_Sphere",
 "accessInformation": "Kansas Biological Survey / Kansas Applied Remote Sensing Program (KARS)",
 "licenseInfo": "\n\nThis map, and the data contained therein, is for general planning purposes only. Any final decisions should be based on actual field investigation as well as a more thorough review and investigation of variables that could impact a decision or proposed project. "
}