Potentiometric Surface Contours of the Lloyd and North Shore Aquifers, April-May 2013
Description
This polyline shapefile consists of digital contours that represent the potentiometric-surface altitude of water in the Lloyd and contiguous North Shore aquifer beneath Long Island, New York. The U.S. Geological Survey constructed a potentiometric-surface altitude map using ground-water levels measured in the Lloyd and North Shore aquifers during the spring of 2013. Contours were constructed at a scale of 1:125,000 from water-level data collected at 66 groundwater monitoring wells. The potentiometric-surface altitude contours were digitized and compared to 1997, 2006, and 2010 potentiometric-surface altitude maps. The contours range from -10 to 60 feet at 5 foot intervals above and below the National Geodetic Vertical Datum of 1929. This polyline shapefile is a digital representation of the potentiometric-surface contours presented in sheet 3 of Scientific Investigations Map 3326.
Resources
| Name |
Format |
Description |
Link |
|
55 |
The metadata original format |
https://data.usgs.gov/datacatalog/metadata/USGS.56f5907ae4b06639d52a39f2.xml |
|
55 |
Landing page for access to the data |
https://doi.org/10.5066/F7RV0KSD |
Tags
- environment
- new-york
- groundwater
- levels
- kings-county
- long-island
- queens-county
- lloyd-aquifer
- geoscientificinformation
- inlandwaters
- nassau-county
- usgs-56f5907ae4b06639d52a39f2
- usgs
- north-shore-aquifer
- potentiometric-surface-contours
- hydrology
- water-level
- contours
- suffolk-county