This file includes metrics describing littoral area and key bathymetric characteristics. Reference: Hansen et al. (in review). Temporal Variability in Reservoir Surface Area: an Important Source of Uncertainty in GHG Emission Estimates. Contact: hansench@ornl.gov Dataset: "US_ReservoirLittoralArea.csv" Field Descriptions Hylak_ID = identifier used in the HydroLakes dataset (https://doi.org/10.1038/ncomms13603) Area_m2 = area reported by HydroLakes (square meters) Dmax = maximum depth reported in GLOBathy (https://doi.org/10.1038/s41597-022-01132-9) Davg = average depth reported in GLOBathy Bathyshape = bathymetric shape used in calculation of littoral area in G-res (https://www.hydropower.org/publications/the-ghg-reservoir-tool-g-res-technical-documentation) Littoral_gres3m = littoral area calculated using the equations in G-res, assuming a 3 meter depth threshold Littoral_gres4m = littoral area calculated using the equations in G-res, assuming a 4 meter depth threshold Littoral_gres10m = littoral area calculated using the equations in G-res, assuming a 10 meter depth threshold Littoral_globathy3m = littoral area calculated using 1-meter contours from GLOBathy, assuming a 3 meter depth threshold Littoral_globathy4m = littoral area calculated using 1-meter contours from GLOBathy, assuming a 4 meter depth threshold Littoral_globathy10m = littoral area calculated using 1-meter contours from GLOBathy, assuming a 10 meter depth threshold