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Height Above Nearest Drainage - Flood Inundation Mapping (HAND-FIM) Assessment South Fork Eel River

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Owners:		This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) for information on this resource.
Type:	Resource
Storage:	The size of this resource is 278.2 MB
Created:	Sep 10, 2025 at 6:50 a.m. (UTC)
Last updated:	Nov 12, 2025 at 5:21 p.m. (UTC)
Citation:	See how to cite this resource

Sharing Status:	Public
Views:	1056
Downloads:	118
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Abstract

This HydroShare resource contains all necessary input data and analysis outputs for the HAND-FIM (Height Above Nearest Drainage – Flood Inundation Mapping) assessment conducted at three reaches along the South Fork Eel River: Leggett, Miranda, and Scotia. The resource supports flood inundation mapping efforts and includes:

- Input Shapefiles: Boundaries defining the analysis area, reach centerlines, and perpendicular transects.
- TUFLOW Model Data: Input files and output rasters for water surface elevation and depth.
- Hydraulic Geometry: Extracted data for transects across a range of discharges.
- Rating Curve Ensembles: Depth vs. discharge data used to generate ensemble rating curves.
- HAND Rasters: Produced at 1-meter and 10-meter spatial resolutions.
- Synthetic Rating Curves: Derived from HAND methodology.
- FIM Agreement Summary: Comparison between HAND-FIM and benchmark inundation extents.
- FIM Bias Summary: Patterns of under and over prediction between HAND-FIM and benchmark inundation extents.
This resource supports ongoing research in scalable flood inundation mapping.

Utah Water Research Laboratory, Utah State University
Paired paper:
Castejon-Villalobos J., Lee, A., Patterson, N., Lane, B., & Phillips, C.B (2025). Leveraging High-resolution Topography to Advance Parsimonious Reach-scale Flood Inundation Mapping, submitted to Water Resources Research.

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Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

South Fork Eel River

North Latitude

40.8641°

East Longitude

-123.7191°

South Latitude

39.9228°

West Longitude

-124.5706°

Content

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Related Resources

This resource is referenced by

Castejon-Villalobos, J., A. Lee, N. Patterson, B. Lane, and C.B. Phillips (2025). Leveraging High-resolution Topography to Advance Parsimonious Reach-scale Flood Inundation Mapping. (submitted to Water Resources Research)

Credits

Funding Agencies

This resource was created using funding from the following sources:

Agency Name	Award Title	Award Number
National Oceanic and Atmospheric Administration	None	NA22NWS4320003

How to Cite

Castejon Villalobos, J., Lee, A., Lane, B., Phillips, C. B. (2025). Height Above Nearest Drainage - Flood Inundation Mapping (HAND-FIM) Assessment South Fork Eel River, HydroShare, http://www.hydroshare.org/resource/8dc18002b790437ca7fa22322d94c9ee

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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