Model:SimClast

Contact

Name	Rory Dalman
Type of contact	Model developer
Institute / Organization	Delft university of Technology
Postal address 1	P.O.Box 5048
Postal address 2
Town / City	Delft
Postal code	2600GA
State	NO STATE
Country	The Netherlands"The Netherlands" 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	r.a.f.dalman@tudelft.nl
Phone	+31 (0) 15 27 83677
Fax	+31 (0) 15 27 81189

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SimClast

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 Windows Other platform Programming language Fortran77, Fortran90 Other program language Code optimized Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 1998 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 GPL v2 Program license type other Memory requirements 1Gb Typical run time 5 minutes up to 24 hours In/Output Describe input parameters Parameters: Sealevel curve subsidence rainfall (variable through time) multiple rivers with variable discharge and sediment load through time initial topography wind velocity and direction/or wave height and propagation direction marine current velocity and location sediment transport parameters number of grainsizes, grainsize dimensions and density fluvial channel dimensions Input format ASCII Other input format Describe output parameters 3D stratigraphy (age, provenance, grainsize, peat fraction) Morphodynamic maps of grainsize, discharge, sediment erosion and deposition Output format ASCII Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? No Describe post-processing software Visualization software needed? Yes If above answer is yes Matlab Other visualization software Surfer Process Describe processes represented by the model Fluvial/alluvial processes; Aggrading fluvial channels in one gridcell with crevasse. Subgrid sedimentation mimics alluvial ridge aggradation and overbank deposition. Avulsions are modelled one dimensionally by calculating the flow and sediment transport at prospective avulsion nodes. See also Dalman & Weltje (2008). Floodplain processes; Differential compaction, groundwater table, peat growth and overbank deposition Hypopycnal plume and marine currents: Rivers deliver sediment and water to the sea, where the river momentum spreads the suspended sediment in a plume. Multiple plumes and longshore current hydrodynamics are calculated using a potential flow routine. Subsequent sedimentation due to fallout uses the removal rate principle after Syvitski et al (1988). Wave resuspension and crosshore transport; Waves are modelled using linear Airy and Stokes wave theory. Deepwater wave height is derived from a Gaussian distribution to represent natural storm variability The asymmetric waves preferentially transport the sands (bedload fraction) shorewards and the fines (suspended load fraction) offshore. In combination with a littoral drift routine this allows waves to rework and transport sediments. Describe key physical parameters and equations tba Describe length scale and resolution constraints SimClast can theoretically be used on a length scale upwards of 20 kms, the upper limit is dependant on memory and processing restrictions. Typical length scales vary from 25 to 500 km. The highest resolution is mainly dependant on the use of intracellular fluvial deposition, as described in Dalman & Weltje (2008) this restricts the minimum cell size to 4 kms. Recent addition of floodplain process reduces this to 500 m. Describe time scale and resolution constraints Total time scale is merely dependant on computing time, typically on the order of several thousands to 100,000 years. Time steps are restricted to 1 year. Describe any numerical limitations and issues tba Testing Describe available calibration data sets tba (see current work in progress) Upload calibration data sets if available: Describe available test data sets For now only a basic synthetic surface. Upload test data sets if available: Describe ideal data for testing ClastSim is ideally used for field tests, a preferably well-studied area with some knowledge of the sediment budget is preferred. Most continental to shallow marine clastic coastal systems without too much tidal influence can be used. Other Do you have current or future plans for collaborating with other researchers? Current work in progress, will be updated when ready; Holocene development of the Rhine-Meuse delta (Utrecht University). Late Quaternary morphology and stratigraphy of the Northern Adriatic Basin. Large-scale stratigraphic patterns on the Vietnam shelf since the LGM (University of Kiel). Is there a manual available? No Upload manual if available: Model website if any -- Model forum / discussion board Comments -- Introduction History Papers Issues Help Input Files Output Files Download Source