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An Unvegetated to Vegetated Ratio (UVVR) for coastal wetlands of the Pacific Coast - 2017

Dates

Publication Date
Start Date
2017-01-01
End Date
2017-12-31

Citation

Couvillion, B.R., Ganju, N.K., and Defne, Z., 2021, An Unvegetated to Vegetated Ratio (UVVR) for coastal wetlands of the Conterminous United States (2014-2018): U.S. Geological Survey data release, https://doi.org/10.5066/P97DQXZP.

Summary

Prior research has shown that sediment budgets, and therefore stability, of microtidal marsh complexes scale with areal unvegetated to vegetated marsh ratios (UVVR) suggesting these metrics are broadly applicable indicators of microtidal marsh vulnerability. This effort has developed the UVVR metric using readily available satellite imagery for the coastal areas of the contiguous United States (CONUS). These datasets provide annual averages of 1) developed, 2) vegetated, 3) unvegetated ratios and 4) an unvegetated to vegetated ratio (UVVR) at 30-meter resolution over the coastal areas of the contiguous United States for the years 2014-2018. Additionally, multi-year average values of vegetated ratio, its standard deviation and a UVVR [...]

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L8_2017_PAC_Unveg_Veg_Water_UVVR.tfw 83 Bytes text/plain
L8_2017_PAC_Unveg_Veg_Water_UVVR.tif 284.99 MB image/geotiff
L8_2017_PAC_Unveg_Veg_Water_UVVR.tif.ovr 87.54 MB application/unknown
L8_2017_PAC_Unveg_Veg_Water_UVVR.tif-ColorRamp.SLD 2.08 KB application/sld+xml

Purpose

These datasets are provided as objective and consistent means to help evaluating geomorphic status and vulnerability of coastal wetlands at a national scale. Specifically, the unvegetated to vegetated marsh ratio (UVVR) is useful for establishing vegetative cover status and for tracking changes in the status of salt marshes at the national scale annually.

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  • USGS Wetland and Aquatic Research Center

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