The ORNL DAAC recently released an update to the following Carbon Monitoring System (CMS) datasets by Holmquist, J.R., et al. (2021):
Relative Tidal Marsh Elevation Maps with Uncertainty for Conterminous USA, 2010
This dataset provides estimates of the elevation of coastal wetlands relative to tidal ranges for the conterminous United States at 30 m resolution for 2010. Relative tidal elevation was determined from estimates of local orthometric elevation obtained from LiDAR-based DEMs and tidal ranges gathered from NOAA tide gauges. Estimates of tidal amplitude, relative sea-level rise for the period 1983-2001, and maps for coastal lands and low marsh areas based on the probability of being below the mean higher high tide water line for spring tides are also included. Uncertainty layers for elevation are also provided.
The NASA CMS program is designed to make significant contributions in characterizing, quantifying, understanding, and predicting the evolution of global carbon sources and sinks through improved monitoring of carbon stocks and fluxes. The System uses NASA satellite observations and modeling/analysis capabilities to establish the accuracy, quantitative uncertainties, and utility of products for supporting national and international policy, regulatory, and management activities. CMS data products are designed to inform near-term policy development and planning.
Additional data from CMS and other relevant links can be found on the ORNL DAAC's CMS Project Page.
Citation: Holmquist, J.R., and L. Windham-Myers. 2021. Relative Tidal Marsh Elevation Maps with Uncertainty for Conterminous USA, 2010. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1844