Descriptions of variables used in the generalized estimation equations models for federal, state, and local park and protected area (PPA) settings. Sample sizes relate to the weekly measurement for each study site over the time period and are as follows: federal (n = 3,258), state (n = 3,331) and local (n = 3,169). U.S. EPA = U.S. Environmental Protection Agency, U.S.G.S. = U.S. Geological Survey; QGIS = Q Geographic Information System.
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Descriptions of variables used in the generalized estimation equations models for federal, state, and local park and protected area (PPA) settings. Sample sizes relate to the weekly measurement for each study site over the time period and are as follows: federal (n = 3,258), state (n = 3,331) and local (n = 3,169). U.S. EPA = U.S. Environmental Protection Agency, U.S.G.S. = U.S. Geological Survey; QGIS = Q Geographic Information System.
创建时间：
2025-04-09
