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Data sets of actual evapotranspiration rates from 2000 to 2017 for basins in the Northwest Florida Water Management District (NWFWMD), calculated using the water-balance method, the bias-corrected Operational Simplified Surface Energy Balance (SSEBop) model, and the land-use crop coefficients model.

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2021-07-22T00:00:00Z
Actual evapotranspiration (ETa) rates from the Operational Simplified Surface Energy Balance (SSEBop) method, before and after bias corrections (Sepúlveda, 2021), are presented for basins located wholly or partially within the Northwest Florida Water Management District (NWFWMD) and parts of Alabama and Georgia. The SSEBop annual rates are provided at about a one square-kilometer scale from 2000 to 2017. Annual ETa rates calculated from the application of the water-balance method (wbETa) to 5 basins in the NWFWMD and annual land-use ETa (luETa) rates calculated from monthly average crop coefficient ratios are also provided in this data set. A GIS shapefile provides land-use type and annual ETa rate for each year of record. Data are tabulated in spreadsheets for each basin and are referred to by the name between parenthesis: Lower Ochlockonee basin (Lower_Ochlockonee), Apalachicola – Chipola River basin (Apalachicola_Chipola), Lower Choctawhatchee River basin (Lower_Choctawhatchee), Yellow River basin (Yellow), and Escambia – Perdido River basin (Escambia_Perdido). Inflows and outflows from various sources in the water-balance equation used to calculate annual average wbETa rates for each basin are presented in this dataset.

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