Model:PIHM: Difference between revisions
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{{Modeler information | |||
|First name=Christopher | |||
|Last name=Duffy | |||
|Type of contact=Project manager | |||
|Institute / Organization=Penn State University | |||
|Postal address 1=212 Sackett Bldg | |||
|Postal address 2=Civil & Environmental Engineering | |||
|Town / City=University Park | |||
|Postal code=16802 | |||
|State=Pennsylvania | |||
|Country=USA | |||
|Email address=cxd11@psu.edu | |||
|Phone=+1 814 863-4384 | |||
|Fax=+1 814-863-7304 | |||
}} | |||
{{Additional modeler information | |||
|Additional first name=Mukesh | |||
|Additional last name=Kumar | |||
|Additional type of contact=Technical contact | |||
}} | |||
{{Additional modeler information | |||
|Additional first name=Gopal | |||
|Additional last name=Bhatt | |||
|Additional type of contact=Technical contact | |||
}} | |||
{{Model identity | |||
|Model type=Modular | |||
|Categories=Hydrology | |||
|One-line model description=PIHM is a multiprocess, multi-scale hydrologic model. | |||
|Extended model description=PIHM is a multiprocess, multi-scale hydrologic model where the major hydrological processes are fully coupled using the semi-discrete finite volume method. PIHM is a physical model for surface and groundwater, “tightly-coupled” to a GIS interface. PIHMgis which is open source, platform independent and extensible. The tight coupling between GIS and the model is achieved by developing a shared data-model and hydrologic-model data structure. | |||
}} | |||
{{Model technical information | |||
|Supported platforms=Unix, Linux, Mac OS, Windows | |||
|Other platform=Platform independent | |||
|Programming language=C, C++ | |||
|Start year development=2002 | |||
|Does model development still take place?=Yes | |||
|Model availability=As code, As executable | |||
|Source code availability=Through owner | |||
|Program license type=GPL v2 | |||
|OpenMI compliant=No but possible | |||
|CCA component=No but possible | |||
|IRF interface=No but possible | |||
|Memory requirements=-- | |||
|Typical run time=-- | |||
}} | |||
{{Input - Output description | |||
|Describe input parameters=PIHM is an integrated finite volume hydrologic model. It simulates channel routing, overland flow and groundwater flow in fully coupled scheme. It uses semi-discrete Finite Volume approach to discretize PDE (equations governing physical processes) into ODE to form a system of ODEs and solved with SUNDIALS solver (LBL).<br>PIHM incorporates an object-oriented model data structure which provides extensibility and efficient storage of data at the same time. PIHM v2.0 requires the following input files: | |||
* projectName.txt : This file will have the project name as its content. | |||
* .mesh File : Spatial information of Nodes and Irregular Meshes (TINs) | |||
* .att File : Attribute defining different classes an element belongs to | |||
* .soil File : Soil properties | |||
* .geol : Geologic properties | |||
* .lc file : Vegetation parameters of different land cover types | |||
* .riv file : Spatial, geometry and material information of river segments | |||
* .forc file : All the forcing variables (forcing time-series) | |||
* .ibc file : Boundary condition information for elements | |||
* .para file : Control parameters (solver options; model modes; error control) | |||
* .init : If initial condition input is through a file | |||
* .calib : Calibration parameters and process controls | |||
|Input format=ASCII | |||
|Other input format=Shape file | |||
|Describe output parameters=PIHM v2.0 uses Net_CDF for state and flux output. Details are under development (April 2009) and will be complete July 2009 | |||
|Output format=ASCII | |||
|Other output format=NetCDF | |||
|Pre-processing software needed?=No | |||
|Post-processing software needed?=No | |||
|Describe post-processing software=PIHM and PIHM_GIS incorporates an object-oriented model data structure which provides extensibility and efficient storage of data at the same time. The output is stored in NET_CDF and we are currently implementing VISIT as the basic tool. VISIT will also be implemented within the PIHM_GIS interface July 2009 | |||
|Visualization software needed?=Yes | |||
|Other visualization software=any software able to visualize gridded data (RiverTools / 3DEM) | |||
}} | |||
{{Process description model | |||
|Describe processes represented by the model=The Penn State Integrated Hydrologic Model (PIHM) is a fully coupled multiprocess hydrologic model. Instead of coupling through artificial boundary conditions, major hydrological processes are fully coupled by the semi-discrete finite volume approach. For those processes whose governing equations are partial differential equations (PDE), we first discretize in space via the finite volume method. This results in a system of ordinary differential equations (ODE) representing those procesess within the control volume. Within the same control volume, combining other processes whose governing equations are ODE’s, (e.g. the snow accumulation and melt process), a local ODE system is formed for the complete dynamics of the finite volume. | |||
|Describe key physical parameters and equations=Processes include: 2-D overland flow, 2-D groundwater flow, 1-D soil moisture, 1-D channel flow, snow/melt, et, vegetation water use by NLCD, | |||
|Describe length scale and resolution constraints=typically based on original DEM used to develop the watershed model | |||
|Describe time scale and resolution constraints=fully implicit, time adaptive, based on the CVODE ODE solver from LBL | |||
|Describe any numerical limitations and issues=Solver is efficient and accurate for very stiff systems of equations | |||
}} | |||
{{Model testing | |||
|Describe available calibration data sets=Upper Juniata River 875 km^2: see: http://sourceforge.net/projects/pihmmodel/ | |||
|Describe available test data sets=Upper Juniata River 875 km^2: see: http://sourceforge.net/projects/pihmmodel/ | |||
|Describe ideal data for testing=PIHM is a distributed watershed model that can represent surface/subsurface processes at scales ranging from a few hundred m^2 to 10,000 km^2. However, large systems will require the parallel version currently under development | |||
}} | |||
{{Users groups model | |||
|Do you have current or future plans for collaborating with other researchers?=We have several other extensions to PIHM under development: solute transport, sediment transport, 3-D Richard's Equation. Full information can be found at: http://sourceforge.net/projects/pihmmodel/ | |||
}} | |||
{{Documentation model | |||
|Provide key papers on model if any=Papers: | |||
*Qu Y., C. J. Duffy (2007), A semidiscrete finite volume formulation for multiprocess watershed simulation, Water Resour. Res., 43, W08419, doi:10.1029/2006WR005752. | |||
*Kumar, M., G. Bhatt, and C.J. Duffy, 2008, The Role of Physical, Numerical and Data Coupling in a Mesoscale Watershed Model, Advances in Water Resources. under review April. 2009 | |||
*Kumar, M., G. Bhatt, and C.J. Duffy, 2008, An efficient domain decomposition framework for accurate representation of geodata in distributed hydrologic models, International Journal of Geographical Information Science, IJGIS-2008-0069.R1 | |||
*Kumar, M. C. J. Duffy, 2008, Object Oriented Shared Data Model for GIS and Distributed Hydrologic Models, Journal of International Journal Geographical Information Science, Accepted July 2008. | |||
|Manual model available=Yes | |||
|Model website if any=http://www.pihm.psu.edu/pihmgis_downloads_v2.0.0.html | |||
}} | |||
{{Additional comments model | |||
|Comments=-- | |||
}} | |||
{{Infobox Model | {{Infobox Model | ||
|model name = PIHM | |model name = PIHM |
Revision as of 12:19, 15 September 2009
Contact
Name | Christopher Duffy |
Type of contact | Project manager |
Institute / Organization | Penn State University |
Postal address 1 | 212 Sackett Bldg |
Postal address 2 | Civil & Environmental Engineering |
Town / City | University Park |
Postal code | 16802 |
State | Pennsylvania |
Country | USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property. |
Email address | cxd11@psu.edu |
Phone | +1 814 863-4384 |
Fax | +1 814-863-7304 |
Name | Mukesh Kumar |
Type of contact | Technical contact |
Institute / Organization | |
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Name | Gopal Bhatt |
Type of contact | Technical contact |
Institute / Organization | |
Postal address 1 | |
Postal address 2 | |
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PIHM
Metadata
Summary
Technical specs
In/Output
Process
Testing
Other
PIHMIntroductionHistoryPapersPIHM QuestionnaireContact Information
Model Description
Technical information
Input / Output description
Process description
Testing
User groups
Documentation
Additional comments
IssuesHelpInput FilesOutput FilesDownloadSee http://sourceforge.net/projects/pihmmodel/ Source |