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Spatial Extent of Data

ISO 19115 Topic Category

Digital elevation models for the Everglades Depth Estimation Network with elevation uncertainty treatment

The Everglades Depth Estimation Network (EDEN) produces daily depth estimates for the Greater Everglades. This data release includes geospatial data to produce depth estimates for the EDEN from updated digital elevation models. The data release includes three main types of data: 1) 10-m digital elevation models (DEMs) with elevation uncertainty treatment; 2) 50-m DEMs with elevation uncertainty treatment; and 3) spatial metadata for the DEMs used. Specifically, this dataset includes accuracy information by zone. These data address elevation error by using Monte Carlo simulations with 1,000 iterations with observations of elevation error in vegetated wetlands and assumptions error in vegetated non-wetland areas and non-vegetated areas. On a per-pixel basis, we created raster surfaces that represented the minimum elevation, maximum elevation, and percentiles (1 to 99). We determined the “best” elevation percentiles for each EDEN zone (Haider and others, 2020) based on the mean bias error, which was calculated for the difference between the USGS high-accuracy elevation dataset (HAED; Jones and Price, 2007) and the DEM. In this case, the percentile DEM with the mean bias error closest to zero for each zone was selected. All zones were combined to create a seamless mosaic. For each zone, upper and lower elevation estimates were determined based on a general rule that selected the percentile that was the farthest from the “best” percentile but had a mean bias error that was within (+/-) 5 cm. Areas in lower and upper estimate DEMs that have “NoData” values indicate that the there was no percentile that could be used to satisfy this rule. For example, a zone may not have a lower estimate if the “best” estimate was the minimum raster. A zone may not have an upper estimate if the next percentile had a mean bias error that was greater than 5 cm.

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Author(s) Bethanie M Simons orcid, Nicholas M Enwright orcid, Saira M Haider orcid, Daniel Gann orcid, Dean B Gesch orcid, Jeffrey J Danielson orcid, William Matthew Cushing orcid
Publication Date 2024-11-14
Beginning Date of Data 1923-01-01
Ending Date of Data 2019-07-04
Data Contact
DOI https://doi.org/10.5066/P1XTHZ7D
Citation Simons, B.M., Enwright, N.M., Haider, S.M., Gann, D., Gesch, D.B., Danielson, J.J., and Cushing, W.M., 2024, Digital elevation models for the Everglades Depth Estimation Network with elevation uncertainty treatment: U.S. Geological Survey data release, https://doi.org/10.5066/P1XTHZ7D.
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Metadata Date 2024-11-14
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Citations of these data No citations of these data are known at this time.
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License http://www.usa.gov/publicdomain/label/1.0/
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Harvest Source: ScienceBase
Harvest Date: 2024-11-14T15:53:59.490Z