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Terrestrial Condition Assessment (TCA) Recent Drought Impacts (Map Service)

Published by U.S. Forest Service | Department of Agriculture | Metadata Last Checked: January 27, 2026 | Last Modified: 2022-08-25
The average moisture deficit as a z-score calculated from the reference time period of 1900-2017 and current conditions as 2017-2019. Data were summarized at the Subsection scale of the USFS National Hierarchy of Ecological Units and applied to the corresponding LTA.

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