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Soil-water-balance groundwater recharge model results for Long Island, NY, 1900-2019

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2022-06-16T00:00:00Z
This data release contains the output from a Soil-Water-Balance (SWB) model (Westenbroek and others, 2010), used to estimate potential recharge to the Long Island regional aquifer system from 1900-2019. Output data for two SWB simulations are included. The first simulation uses available land-use/land-cover datasets to estimate recharge with changing land use from 1900-2019 (referred to as the post-development simulation). The second simulation assumed a forested, undeveloped (predevelopment simulation) condition across Long Island for the same period. The same soil coverages and time-series climate data were used throughout both simulations. Potential recharge was spatially distributed as gridded output across Long Island in 100m x 100m grid cells. The potential recharge is in units of inches per year and are provided as ascii files. The SWB model archive, including source code and input files, used to estimate the potential recharge is available in Finkelstein (2022).

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