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Height Above Nearest Drainage (HAND) is an approach for estimating the vertical height of any point on the landscape from the nearest stream surface or bed. The first version 0.1 of this dataset is based on the U.S. Geological Survey's National Elevation Dataset (NED) with 10-meter horizontal resolution, comprising raster data for the 331 HUC-6 units in conterminous U.S. (CONUS), excluding the five units of the great lakes. This was developed at the UIUC CyberGIS supercomputing facility, and is now archived at the UT Austin TACC (Texas Advanced Computing Center) for download . As of summer 2020, it has been updated to version 0.2, now hosted at Oak Ridge National Lab's HPC server . The 2017 Harvey subset of CONUS HAND is at .
In 2023, Oak Ridge National Laboratory (ORNL) computed the 3-meter HAND for Texas, see .
To interactively select HAND data by HUC6 basin in either the Harvey or Irma hydrologic study area, use the Harvey Archive Story Map [https://arcg.is/1rWLzL0] or the Irma Archive Story Map [http://arcg.is/PSOKH] and click on the HAND tab. To directly browse this data for anywhere in CONUS, visit  or .
For a bibliography of technical papers leading to the development of HAND, see the PrimaryRefs_NWM-HAND_Jan2018.pdf file in the contents list below.
For an explanation of the contents of the nfiedata folder at TACC, see the README-Nfiedata_HAND.pdf file in the contents list below.
 University of Texas Advanced Computing Center (TACC) repository for version 0.1 of 10m CONUS HAND [https://web.corral.tacc.utexas.edu/nfiedata/]
 Most recent HAND products at ORNL [https://cfim.ornl.gov/data/]
 Harvey subset of national HAND [https://cfim.ornl.gov/data/nfiedata/Harvey/]
 3m HAND for state of Texas computed by ORNL [https://web.corral.tacc.utexas.edu/nfiedata/pin2flood/texas/]
|The content of this resource references
|Top-level folder for 10m HAND for USA [https://web.corral.tacc.utexas.edu/nfiedata/]
|This resource updates and replaces a previous version
|Liu, Y. (2018). Height Above Nearest Drainage (HAND) for CONUS, HydroShare, https://doi.org/10.4211/hs.69f7d237675c4c73938481904358c789
|Harvey Basemap Data Collections
|David Arctur · Harvey datamgr · Christine Thies
This resource was created using funding from the following sources:
|National Science Foundation (NSF)
|RAPID: Archiving and Enabling Community Access to Data from Recent US Hurricanes
People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.
|Utah State University
|University of Texas at Austin
How to Cite
This resource is shared under the Creative Commons Attribution CC BY,
MAPS AND DATA DISCLAIMER
The University of Texas (UT) shall not be held liable for improper or incorrect use of the data described or information contained on this map or associated series of maps. The data and related map graphics are not legal, land survey or engineering documents and are not intended to be used as such.
UT gives no warranty, express or implied, as to the accuracy, reliability, utility or completeness of this information. The user of these maps and data assumes all responsibility and risk for the use of the maps and data. UT disclaims all warranties, representations or endorsements either express or implied, with regard to the information contained in this map product, including, but not limited to, all implied warranties of merchantability, fitness for a particular purpose or non-infringement.
This preliminary map product is for research and review purposes only. It is not intended to be used for emergency management operational or life safety decisions at the local or regional governmental level or by the general public. Users requiring information regarding hazardous conditions or meteorological conditions for specific geographic areas should consult directly with their city or county emergency management office.