This page offers additional resources that users may find helpful when using the CUAHSI Domain Subsetter for both NWM/WRF-Hydro and ParFlow-CONUS.
National Water Model
Office of Water Prediction (OWP), National Water Model
OWP National Water Model Mapping Interface (this is particularly useful to check COMIDs)
HydroShare National Water Model Viewer for data collection
It should be noted that we do not fully outline how to set up a WRF-Hydro model here and this page intended to give only general advice on the build process in reference to using WRF-Hydro with the CUAHSI NWM subsetting tool. WRF-Hydro is extensively documented by the development team at NCAR and you should refer to the WRF-Hydro Modeling System website and the links below for general WRF-Hydro information. For additional user support, please contact .
WRF-Hydro V5 Technical Description:
WRF-Hydro and NWM Source Code:
WRF-Hydro Citation and User Guides:
The Croton, NY testcase is a good reference for how to compile and run WRF-Hydro:
rwrfhydro, an R toolbox for managing, analyzing, and visualizing WRF-Hydro data:
National Water Model NetCDF domain files and outputs can be easily accessed using the rwrfhydro package developed at NCAR.
Meteorological Forcing Regridding scripts for regridding forcing to the WRF-Hydro geogrid:
Basic Model Set-Up (i.e. How to use your subsetted domain):
- Reference the following documents:
- “How to Build and Run WRF-Hydro V5 in Standalone Mode”:
- “WRF-Hydro V5 Test Case User Guide”:
- “How to Build and Run WRF-Hydro V5 in Standalone Mode”:
Obtain the source code for the latest WRF-Hydro release
Set the required environmental variables for your machine/environment.
Compile with nudging turned off
The CUAHSI Domain Subsetting Tool: NWM v1.2 does not currently support subsetting of Nudging files. As such, the model must be compiled using the NoahMP land surface model (LSM) with NUDGING TURNED OFF in the
setEnvar.sh script (
- Maxwell, R. M., Condon, L. E., & Kollet, S. J. (2015). A high-resolution simulation of groundwater and surface water over most of the continental US with the integrated hydrologic model ParFlow v3. Geoscientific Model Development, 8, 923–937. doi:10.5194/gmd-8-923-2015.
- Maxwell, R. M., & Condon, L. (2016). Connections between groundwater flow and transpiration partitioning. Science, 353(6297), 377–379. doi:10.1126/science.aaf7891.
- Jones, J.E. and Woodward, C.S. (2001). [Newton–Krylov-multigrid solvers for large-scale, highly heterogeneous, variably saturated flow problems.] (http://www.sciencedirect.com/science/article/pii/S0309170800000750) Advances in Water Resources, 24(7), 763–774, doi:10.1016/S0309-1708(00)00075-0.
- Ashby S.F. and Falgout, R.D. (1996). A Parallel Multigrid Preconditioned Conjugate Gradient Algorithm for Groundwater Flow Simulations. Nuclear Science and Engineering, 124(1), 145-159.
- Kollet, S.J. and Maxwell, R.M. (2006). Integrated surface-groundwater flow modeling: a free-surface overland flow boundary condition in a parallel groundwater flow model. Advances in Water Resources, 29(7), 945-958, doi:10.1016/j.advwatres.2005.08.006.
- Maxwell, R.M. (2013) A terrain-following grid transform and preconditioner for parallel, large-scale, integrated hydrologic modeling. Advances in Water Resources, 53, 109-117, doi:10.1016/j.advwatres.2012.10.001.
ParFlow coupled to CLM
- Maxwell, R.M. and Miller, N.L. (2005). Development of a Coupled Land Surface and Groundwater Model. Journal of Hydrometeorology, 6(3), 233-247, doi:10.1175/JHM422.1.
- Kollet, S.J. and Maxwell, R.M. (2008). Capturing the influence of groundwater dynamics on land surface processes using an integrated, distributed watershed model. Water Resources Research, 44(2), W02402, doi:10.1029/2007WR006004
ParFlow is available on GitHub https://github.com/parflow/parflow, including the newest and older versions. At the time of writing this documentation, the latest stable release is v3.6.0 (2019-09-01), which also contains many test cases including data to get started.
ParFlow website includes extensive ParFlow resources on documentation, example applications, publications and user manual, and source code download. https://parflow.org
ParFlow blog, for troubleshooting and installation instructions. http://parflow.blogspot.com
ParFlow mailing list https://mailman.mines.edu/mailman/listinfo/parflow-users
ParFlow is available as a Docker container. Instructions can be found on the Docker page on the ParFlow GitHub https://github.com/parflow/docker.
Both VisIt https://wci.llnl.gov/simulation/computer-codes/visit/executables and ParaView https://www.paraview.org/download/ support visualization of ParFlow output files
NLDAS-2 Meteorological Forcing
The North American Land Data Assimilation System is a quality-controlled, spatially and temporally consistent meteorological dataset with many uses. It is one product that can be used to force subsetted NWM and PF-CONUS domains, after it has been regridded to the model domain. For NWM, [regridding tools] (https://ral.ucar.edu/projects/wrf_hydro/regridding-scripts) are available on the WRF-Hydro website. http://ldas.gsfc.nasa.gov/nldas/
Hydrologic Unit Code (HUC)
Find HUC of interest using the USGS Science in Your Watershed website https://water.usgs.gov/wsc/map_index.html
NHDPlus High Resolution
The NHDPlus catchments and vector stream network are used directly in the NWM, as well as to inform development of a new PF-CONUS domain that extends to the coastlines (still to be released). https://www.usgs.gov/core-science-systems/ngp/national-hydrography/nhdplus-high-resolution
CONTACT & INQUIRES
CUAHSI Subsetting Tool questions
Contact Tony Castronova or Danielle Tijerina
WRF-Hydro specific questions
Visit the WRF-Hydro Support Page and contact for questions specifically about the National Water Model.
ParFlow specific questions
Consult the ParFlow blog, [ParFlow user's manual] (https://github.com/parflow/parflow/blob/v3.6.0/parflow-manual.pdf), or report problems to the mailing list or ParFlow Github issue tracker.