Model:DR3M

Contact

Name	Geological Survey U.S.
Type of contact	Project manager
Institute / Organization	U.S. Geological Survey
Postal address 1
Postal address 2
Town / City	Reston
Postal code	20192
State	Virginia
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	h2osoft@usgs.gov
Phone
Fax

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DR3M

Metadata

Summary Also known as Model type Single Model part of larger framework Note on status model Date note status model Technical specs Supported platforms Unix, Windows Other platform Programming language Fortran77 Other program language Code optimized Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 1972 Does model development still take place? No If above answer is no, provide end year model development 1996 Code development status When did you indicate the 'code development status'? Model availability As code Source code availability (Or provide future intension) Through web repository Source web address http://water.usgs.gov/software/DR3M/ Source csdms web address Program license type Other Program license type other -- Memory requirements -- Typical run time -- In/Output Describe input parameters Daily precipitation, daily evapotranspiration, and short-interval precipitation are required. Short-interval discharge is required for the optimization option and to calibrate the model. These time series are read from a WDM file. Roughness and hydraulics parameters and sub-catchment areas are required to define the basin. Six parameters are required to calculate infiltration and soil-moisture accounting. Up to three rainfall stations may be used. Two soil types may be defined. A total of 99 flow planes, channels, pipes, reservoirs, and junctions may be used to define the basin. Input format Other input format Describe output parameters The computed outflow from any flow plane, pipe, or channel segment for each storm period may be written to the output file or to the WDM file. A summary of the measured and simulated rainfall, runoff, and peak flows is written to the output file. A flat file containing the storm rainfall, measured flow (if available), and simulated flow at user selected sites can be generated. A flat file for each storm containing the total rainfall, the measured peak flow (if available), and the simulated peak flow for user-selected sites can be generated. Output format Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? No Describe post-processing software Visualization software needed? No If above answer is yes Other visualization software Process Describe processes represented by the model The rainfall-excess components include soil-moisture accounting, pervious-area rainfall excess, impervious-area rainfall excess, and parameter optimization. The Green-Ampt equation is used in the calculations of infiltration and pervious area rainfall excess. A Rosenbrock optimization procedure may be used to aid in calibrating several of the infiltration and soil-moisture accounting parameters. Kinematic wave theory is used for both overland-flow and channel routing. There are three solution techniques available: method of characteristics, implicit finite difference method, and explicit finite difference method. Two soil types may be defined. Overland flow may be defined as turbulent or laminar. Detention reservoirs may be simulated as linear storage or using a modified-Puls method. Channel segments may be defined as gutter, pipe, triangular cross section, or by explicitly specifying the kinematic channel parameters alpha and m. Describe key physical parameters and equations -- Describe length scale and resolution constraints -- Describe time scale and resolution constraints -- Describe any numerical limitations and issues -- Testing Describe available calibration data sets -- Upload calibration data sets if available: Describe available test data sets -- Upload test data sets if available: Describe ideal data for testing -- Other Do you have current or future plans for collaborating with other researchers? -- Is there a manual available? No Upload manual if available: Model website if any http://water.usgs.gov/software/dr3m.html Model forum / discussion board Comments TRAINING Watershed Systems Modeling I (SW2008TC), offered annually at the USGS National Training Center. Watershed Systems Modeling II (SW3018TC), offered upon request at the USGS National Training Center. DR3M Information Visit http://water.usgs.gov/software/DR3M/ for more information or to download the model. History 1991 - DR3M-version II, added option to output simulated time-series data to Watershed Data Management (WDM) file. Output file modified to reduce width from 132 characters to 80 characters or less. 1984 - DR3M-version II, WDM file replaces "card" input of time-series data. 1982 - DR3M-version II, added two solution techniques for kinematic wave routing. Improved general output. 1978 - Original DR3M version, incorporated the routing component from a version of the Massachusetts Institute of Technology catchment model into the lumped parameter rainfall-runoff model. 1972 - A lumped parameter rainfall-runoff model for small rural watersheds Papers Issues Help Input Files Output Files Download Source