Model:WEPP: Difference between revisions

Revision as of 16:05, 21 June 2011

Name	Dennis Flanagan
Type of contact	Project manager
Institute / Organization	USDA-Agricultural Research Service
Postal address 1	National Soil Erosion Research Laboratory
Postal address 2	275 S. Russell Street
Town / City	West Lafayette
Postal code	47907-2077
State	Indiana
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	flanagan@purdue.edu
Phone	765-494-7748
Fax	765-494-5948

Name	Jim Frankenberger
Type of contact	Technical contact
Institute / Organization
Postal address 1
Postal address 2
Town / City
Postal code
State
Country
Email address
Phone
Fax

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WEPP

Metadata

Also known as
Model type	Modular
Model part of larger framework
Note on status model
Date note status model

Supported platforms	Unix, Linux, Windows
Other platform
Programming language	Fortran77, Fortran90
Other program language
Code optimized	Single Processor
Multiple processors implemented
Nr of distributed processors
Nr of shared processors
Start year development	1985
Does model development still take place?	Yes
If above answer is no, provide end year model development
Code development status
When did you indicate the 'code development status'?
Model availability	As code, As teaching tool
Source code availability (Or provide future intension)	Through owner"Through owner" is not in the list (Through web repository, Through CSDMS repository) of allowed values for the "Source code availability" property.
Source web address
Source csdms web address
Program license type	Other
Program license type other	--
Memory requirements	--
Typical run time	<1 minute for hillslope simulations

Describe input parameters	Daily climate input (temperatures, precipitation depth, duration, Tp, Ip, wind info); slope input (distance downslope, slope at points, profile width, aspect); soil input (infiltration & erodibility parameters, soil layer depth, texture, organic matter, CEC, etc.; cropping/management input - plant growth parameters, residue decomposition parameters, tillage operation parameters, residue management parameters, dates of operations (planting, harvest, tillage, residue management, etc.); irrigation input - type of irrigation, date(s) of irrigation, application rates, etc.; channel parameters input - channel shape, width, slope, roughness, etc.; impoundment parameters input - type of impoundment (1. Drop Spillway 2. Perforated Riser 3. Culvert 4. Emergency Spillway or Open Channel 5. Rock Fill Check Dam 6. Filter Fence / Straw Bales / Trash Barriers 7. User Specified Stage-Discharge Relationship, parameter inputs specific to each impoundment type; watershed structure file - describes how all hillslopes, channels, and impoundments in a watershed are linked.
Input format	ASCII
Other input format
Describe output parameters	Storm, monthly, yearly, or average annual runoff, soil loss, and sediment yield from a hillslope profile. Spatial distribution of soil erosion and deposition on slope profiles. Graphical output available of 92 parameters from continuous model simulations (including precip, temperatures, runoff, soil loss, sediment yield, biomass production, residue cover, etc.). Soil output text file, water balance output text file, plant output text file, storm event output file, overland flow element summary line output file.
Output format	ASCII
Other output format
Pre-processing software needed?	No
Describe pre-processing software
Post-processing software needed?	No
Describe post-processing software	WEPP Windows or web-based interfaces can be used without any other software, besides that included in the model installation (or with web-browser for the browser interfaces). GeoWEPP requires ArcView or ArcGIS as the GIS system.
Visualization software needed?	No
If above answer is yes	ESRI
Other visualization software

Describe processes represented by the model	Climate generation (CLIGEN), infiltration, percolation, evapotranspiration, plant growth, residue management and decomposition, runoff, hydralics of overland flow, soil detachment by raindrop impact and shallow flow (interrill), soil detachment by excess flow shear stress (rill, channel), sediment transport, sediment deposition, irrigation, winter processes (snow melt, frost, thaw), channel erosion processes, sedimentation in impoundments.
Describe key physical parameters and equations	Rain storm depth, storm duration, storm intensity - driving variables; effective hydraulic conductivity - controls infiltration into soil; baseline soil erodibility parameters (interrill erodibility, rill erodibility, critical hydraulic shear stress) - control soil detachment rates; slope inputs - control amount of flow shear stress and sediment transport capacity available to detach and tranport soil/sediment; plant growth parameters - control the production of biomass that protects soil surface; residue decomposition parameters - control the rate of residue loss from soil surface; tillage operation parameters - control the amount of soil disturbance and burial of residue - both of which impact the adjusted erodiblities for a given day.
Describe length scale and resolution constraints	Hillslope simulations are recommended for lengths not greatly exceeding 100 meters. Watershed simulations should not exceed areas above 260 hectares. Larger areas can be simulated for hillslope spatial analyses only - but the channel processes will not be accurate at these larger scales.
Describe time scale and resolution constraints	The model can be run for a single storm (minutes to hours), and can also be run in continuous simulation mode for any number of years (1 - 100+).
Describe any numerical limitations and issues

Describe available calibration data sets	Data available from 1986-88 field experimentation (in compendium) using rainfall simulation. Also, validation data sets are available from USLE database.
Upload calibration data sets if available:
Describe available test data sets
Upload test data sets if available:
Describe ideal data for testing	Ideal data would consist of breakpoint (recording raingage) rainfall data, observed temperatures, radiation, wind, plant cover, residue cover, storm runoff, storm sediment loss, etc.

Do you have current or future plans for collaborating with other researchers?	Yes

Is there a manual available?	Yes
Upload manual if available:
Model website if any	http://www.ars.usda.gov/Research/docs.htm?docid=10621
Model forum / discussion board

Comments	--

This part will be filled out by CSDMS staff

OpenMI compliant	No but possible
BMI compliant	No but possible
WMT component
PyMT component
Is this a data component

Model info

Authors

Dennis Flanagan

Frankenberger

Source code

Model citations

Nr. of publications:	--
Total citations:	0
h-index:	--"--" is not a number.
m-quotient:	0

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WEPP

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@@ Line 35: / Line 35: @@
 |Program license type=Other
 |Program license type other=--
-|OpenMI compliant=No but possible
-|CCA component=No but possible
-|IRF interface=No but possible
 |Memory requirements=--
 |Typical run time=<1 minute for hillslope simulations
@@ Line 74: / Line 71: @@
 |Comments=--
 }}
-{{Infobox Model
+{{CSDMS staff part
-|model name               = WEPP
+|OpenMI compliant=No but possible
-|developer                = '''Flanagan''', Dennis
+|CCA component=No but possible
-|one-line-description     = Process-based soil erosion by water at field/farm scale
+|IRF interface=No but possible
-|type                     = Model
-|source                   = [[image:Red1.png]]
 }}
+{{End headertab}}
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