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Ground Water Climate Response Network |
What this map layer shows:
The locations of over 300 wells that are part of the Ground Water Climate Response Network.
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Background Information |
Sample Map
The U.S. Geological Survey (USGS) Water
Resources Program, in cooperation
with hundreds of Federal, State, and local agencies, collects nationally-consistent
information about the Nation's ground water resources and helps define
and manage those resources. The USGS maintains a network of wells to
monitor the effects of droughts and other climate variability on ground
water levels. The Ground
Water Climate Response Network consists of
a national network of about 140 wells monitored as part of the Ground
Water Resources Program, supplemented by more than 200 wells monitored
as part of the Cooperative
Water Program that meet the same network
criteria, which are:
- Open to a single, known hydrogeologic unit
- Known well construction that allows good water-level measurements
- Located in unconfined aquifers or near-surface confined aquifers that
respond to climatic fluctuations
- Minimally affected by pumpage and likely to remain so
- Essentially unaffected by irrigation, canals, and other potential sources
of artificial recharge
- Long-term accessibility
- Well has never gone dry (not susceptible to going dry)
More than 200 of the network wells are equipped with telemetry that transmits
a reading of water level to an office by satellite or telephone. The data
typically are updated every 4 hours. Real-time hydrologic data are provisional
and have not been reviewed or edited. Each ground water record is considered
provisional until the data are published, which usually occurs within 6
months of the end of the water year (September 30).
The Ground Water Climate Response Network map layer shows the locations
of more than 300 wells in the United States and Puerto Rico. This map
layer was compiled by the USGS. Descriptive information includes the
station identification number, its location, and an indication of how
frequently data are collected from the well. Links are provided to
detailed information from each well. Additional information about USGS
water activities, including data from additional wells, is available
from the Water Resources
Program home page.
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