U.S. Department of the Interior, U.S. Geological Survey, Spitz, F.J., Lacombe, P.J., and Carleton, G.B., Authors, 20021231, wri014246wlmap_stmpts.
This is a Vector data set. It contains the following vector data types (SDTS terminology):
The map projection used is NAD 1983 UTM Zone 18N.
Planar coordinates are encoded using coordinate pair
Abscissae (x-coordinates) are specified to the nearest 0.0001
Ordinates (y-coordinates) are specified to the nearest 0.0001
Planar coordinates are specified in meter
The horizontal datum used is North American 1983.
The ellipsoid used is GRS 1980.
The semi-major axis of the ellipsoid used is 6378137.0.
The flattening of the ellipsoid used is 1/298.257222101.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Unique project ID assigned by USGS and only used for the Cape May study.
Unique coordinate defining the latitude of the feature.
Unique coordinate defining the longitude of the feature.
Unique date that manual surface-water level measurement was made as part of project.
Unique value of stream or surface water elevation in feet above NGVD 29, calculated from estimated elevation of land surface and manual measurement of depth to water.
Spitz, F.J., 1998, Analysis of groundwater flow and saltwater encroachment in the shallow aquifer system of Cape May County, New Jersey, U.S. Geological Survey Water-Supply Paper 2490, 51 p. (page 11, figure 11a) http://pubs.er.usgs.gov/publication/wsp2490 Lacombe, P.J., and Carleton, G.B., 2002, Hydrogeologic framework, availability of water supplies, and saltwater intrusion, Cape May County, New Jersey, U.S. Geological Survey Water-Resources Investigations Report 01-4246, 152 p. (page 10 figure 5, page 63 figure 35, page 141 Appendix 1) http://pubs.usgs.gov/wri/wri014246
(609) 771-3900 (voice)
(609) 771-3915 (FAX)
dc_nj@usgs.gov
The water-levels from streams data for the Cape May study includes stream and surface water levels, and related site information that were compiled, along with water levels measured in wells, to construct a water-table contour map. The water-table contour map can be used to provide an interpretive assessment of depth to water, water-table altitude, water-table gradients, and the direction of groundwater flow within the unconfined aquifer system. The study was performed in cooperation with the New Jersey Department of Environmental Protection for their purpose of developing a scientific basis to help address environmental, water-resource management and planning, water availability, water use, and water quality questions.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is also strongly recommended that careful attention be paid to the constraints of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
(609) 771-3900 (voice)
(609) 771-3915 (FAX)
dc_nj@usgs.gov