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Gulf of Mexico Land Area Change in Wetland Possible Zone by Hydrologic Unit Code (HUC) Graphs

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2021-06-22T00:00:00Z
The graphs presented here quantify land area change in a wetlands possible zone of coastal wetlands during a 1985-2020 observation period by 10-digit Hydrologic Unit Code (HUC10) in the Gulf of Mexico. These data are intended for coarse-scale analysis of wetland change area. The datasets are summarized by 10-digit Hydrologic Unit Code (HUC10), and land area change through time is fit using a penalized regression smooth spline. The trends are therefore generalized in time and are intended to present coarse scale observations of trends in wetland area change.

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