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New Jersey Water Science Center

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USGS IN YOUR STATE

USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusetts South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.

Ground-water budgets

Ground-water budgets are commonly used in water-resource studies to gain a better understanding of the groundwater-flow system. The hydrologic cycle in the basin can be represented by a long-term water budget in which inflows are balances by outflows and, thus, no long-term change in storage occurs. The water budget can be evaluated through use of two internal budgets and their corresponding balance equations: one that describes the gains and losses to and from the land-surface and the other that describes gains and losses to and from the saturated unconfined ground-water system. Recharge, a variable that cannot be measured or estimated except from other hydrologic data, was determined separately in both equations, and the two values were compared. The water budget provides a basis for evaluating change and quantifying the stresses on the system. A flow budget provides water-supply managers with a detailed understanding of the ground-water flow allowing them to make informed decisions with regards to the water resources within the basin.

 

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Page Last Modified: Tuesday, 22-Jul-2014 13:27:56 EDT