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Height Above Nearest Drainage (HAND) at Three-Meter Resolution for the State of Texas

    Yan Liu | Oak Ridge National Laboratory
    David Maidment | University of Texas at Austin
    Andy Carter | University of Texas at Austin
    Paola Passalacqua | University of Texas at Austin
    Tim Whiteaker | University of Texas at Austin
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Description

URL: https://web.corral.tacc.utexas.edu/nfiedata/pin2flood/texas/ The current National Water Model and its Flood Inundation Mapping (FIM) service use 10-meter Height Above Nearest Drainage (HAND) hydrological terrain. In the Pin2Flood project (https://gis.tdem.texas.gov/portal/apps/storymaps/stories/72f0ec81a7654da688518f486122abed), funded by the Texas Division of Emergency Management (TDEM), ORNL computed the 3-meter HAND and associated synthetic rating curves for the State of Texas, covering 287,535 river streams (1.5km/stream) in 209 HUC8s. This archived dataset includes the HAND raster and the synthetic rating curve table for each of the 209 HUC8s in Texas. It is hosted at the Texas Advanced Computing Center (TACC). This 3-meter HAND is derived from the Fathom 3-meter DEM and NHDPlus V21 using an accelerated version of NOAA's Flood Inundation Mapping version 3 (FIM3, https://github.com/NOAA-OWP/inundation-mapping/tree/dev-fim3)

Funding Information

DOE Contract Number

DE-AC05-00OR22725

Originating Research Organization

Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States);University of Texas at Austin

Sponsoring Organization

Office of Science (SC);University of Texas at Austin

Details

DOI

https://doi.org/10.13139/ORNLNCCS/2204010

Release Date

November 20, 2023

Subject

58 GEOSCIENCES

Keywords

flood inundation mapping, HAND, river rating curve

Dataset

Dataset Type

ND Numeric Data

Cite This Dataset:

Liu, Y., Maidment, D., Carter, A., Passalacqua, P., Whiteaker, T. (2023). Height Above Nearest Drainage (HAND) at Three-Meter Resolution for the State of Texas. Oak Ridge National Laboratory. https://doi.org/10.13139/ORNLNCCS/2204010.

Acknowledgements

This work was carried out [in part] at Oak Ridge National Laboratory, managed by UT-Battelle, LLC for the U.S. Department of Energy under contract DE-AC05-00OR22725.