Vegetated fraction of the U.S. coastal wetlands: Mean of masked multiyear-composite computed from Landsat data (2014 - 2018)

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 Landsat 8 satellite imagery for the coastal areas of the contiguous United States (CONUS). These datasets provide annual averages of 1) developed, 2) vegetated, 3) unvegetated fractional covers 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 fractional cover and its standard deviation are provided for the coastal wetlands of the contiguous United States based on the National Wetland Inventory delineation. Finally, a UVVR based on the annually-averaged vegetated fractional cover is also provided for the same extent.

Data and Resources

Field Value
accessLevel public
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identifier USGS:5f5aa37082cefd9f20868a9c
metadata_type geospatial
modified 20210205
old-spatial -126.0352, 24.0465, -66.1816, 49.0379
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
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spatial {"type": "Polygon", "coordinates": [[[-126.0352, 24.0465], [-126.0352, 49.0379], [ -66.1816, 49.0379], [ -66.1816, 24.0465], [-126.0352, 24.0465]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • ckan
  • coastal-ecosystems
  • coastal-processes
  • geo
  • geoss
  • geotiff
  • inlandwaters
  • marsh-health
  • marsh-stress
  • national
  • north-america
  • pacific-ocean
  • resilience
  • salt-marsh
  • sedimentation
  • society
  • united-states
  • usgs-5f5aa37082cefd9f20868a9c
  • vegetation
  • vulnerability
  • wetland-ecosystems
  • wetland-functions
isopen False
license_id notspecified
license_title License not specified
maintainer Zafer Defne
maintainer_email zdefne@usgs.gov
metadata_created 2025-11-22T04:19:01.177329
metadata_modified 2025-11-22T04:19:01.177334
notes 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 Landsat 8 satellite imagery for the coastal areas of the contiguous United States (CONUS). These datasets provide annual averages of 1) developed, 2) vegetated, 3) unvegetated fractional covers 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 fractional cover and its standard deviation are provided for the coastal wetlands of the contiguous United States based on the National Wetland Inventory delineation. Finally, a UVVR based on the annually-averaged vegetated fractional cover is also provided for the same extent.
num_resources 2
num_tags 24
title Vegetated fraction of the U.S. coastal wetlands: Mean of masked multiyear-composite computed from Landsat data (2014 - 2018)