Model:GEOtop

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GEOtop

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as Model type Modular Model part of larger framework Note on status model Date note status model Incorporated models or components: Spatial dimensions 2D Spatial extent Landscape-Scale Model domain Hydrology, Terrestrial One-line model description Distributed hydrological model, water and energy budgets Extended model description GEOtop accommodates very complex topography and, besides the water balance integrates all the terms in the surface energy balance equation. For saturated and unsaturated subsurface flow, it uses the 3D Richards’ equation. An accurate treatment of radiation inputs is implemented in order to be able to return surface temperature. The model GEOtop simulates the complete hydrological balance in a continuous way, during a whole year, inside a basin and combines the main features of the modern land surfaces models with the distributed rainfall-runoff models. The new 0.875 version of GEOtop introduces the snow accumulation and melt module and describes sub-surface flows in an unsaturated media more accurately. With respect to the version 0.750 the updates are fundamental: the codex is completely eviewed, the energy and mass parametrizations are rewritten, the input/output file set is redifined. GEOtop makes it possible to know the outgoing discharge at the basin's closing section, to estimate the local values at the ground of humidity, of soil temperature, of sensible and latent heat fluxes, of heat flux in the soil and of net radiation, together with other hydrometeorlogical distributed variables. Furthermore it describes the distributed snow water equivalent and surface snow temperature. GEOtop is a model based on the use of Digital Elevation Models (DEMs). It makes also use of meteorological measurements obtained thought traditional instruments on the ground. Yet, it can also assimilate distributed data like those coming from radar measurements, from satellite terrain sensing or from micrometeorological models. Keywords: basins, Name Riccardo Rigon Type of contact Technical contact Institute / Organization University of Trento Postal address 1 Via Mesiano, 77 Postal address 2 Town / City Trento Postal code I-38100 State NO STATE Country Italy Email address riccardo.rigon@ing.unitn.it Phone +39-0461-882614 Fax +39-0461-882672 Name Stefano Endrizzi Type of contact Model developer Institute / Organization Postal address 1 Postal address 2 Town / City Postal code State Country Email address Phone Fax Name Matteo Dall'Amico Type of contact Model developer Institute / Organization Postal address 1 Postal address 2 Town / City Postal code State Country Email address Phone Fax Supported platforms Linux, Mac OS, Windows Other platform Programming language Fortran77, C, Java Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 1997 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 Source code availability (Or provide future intension) Through web repository Source web address http://geotopmodel.github.io/geotop/ Source csdms web address Program license type Other Program license type other -- Memory requirements Dependent on DEM size Typical run time Depends on the lenght of the period simulated Describe input parameters Please see: http://geotopmodel.github.io/geotop/ Input format ASCII Other input format Describe output parameters Please see: http://geotopmodel.github.io/geotop/ Output format ASCII Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? Yes Describe post-processing software JGrass (http://www.jgrass.org) for visualizing inputs/outputs. Interface with IDL, matlab and R are also being developed. Visualization software needed? Yes If above answer is yes Other visualization software JGrass Describe processes represented by the model Please have a look at: http://www.slideshare.net/GEOFRAMEcafe/geotop-2008?type=powerpoint. Describe key physical parameters and equations Please give a look at http://geotopmodel.github.io/geotop/ Describe length scale and resolution constraints Resolution is limited by RAM. Processes however are parametrized at a few square meter scale. Describe time scale and resolution constraints Most forcings are required at hourly scale. Integration time step is what required by numerical algorithms to converge (depends actually on processes) Describe any numerical limitations and issues Any of the processes modeling can be obviously improved. Describe available calibration data sets There are few test on Rio Corda, a ten square kilometer catchment in Trentino, Italy. Simulations on Little Washita will be made available soon, too. Upload calibration data sets if available: Describe available test data sets Please look at the GEOtop website: http://www.slideshare.net/GEOFRAMEcafe/geotop-2008?type=powerpoint Upload test data sets if available: Describe ideal data for testing The ideal data set is one as those of Panola catchment. Do you have current or future plans for collaborating with other researchers? Yes, see list-geotopdev@ing.unitn.it and the developer's website. There is also a list for users: list-geotopusers@ing.unitn.it. Information at http://geotopmodel.github.io/geotop/ Is there a manual available? Yes Upload manual if available: Media:geotop 20110719 users man.pdf Model website if any http://geotopmodel.github.io/geotop/ Model forum / discussion board http://www.slideshare.net/GEOFRAMEcafe/geotop-2008?type=powerpoint Comments This part will be filled out by CSDMS staff OpenMI compliant No but possible BMI compliant No but possible WMT component No but possible PyMT component Is this a data component Can be coupled with:

Model info Authors Riccardo Rigon Endrizzi, Dall'Amico Source code Go to external source code site Model citations Nr. of publications: 31 Total citations: 1506 h-index: 14 m-quotient: 0.61 QR-code Link to this page Other models by author GEOtop

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Nr. of publications:	31
Total citations:	1506
h-index:	14
m-quotient:	0.61

Featured reference(s)	Open Access Status	Year	Type of Reference	Cited
Rigon, Riccardo; Bertoldi, Giacomo; Over, Thomas M.; 2006. GEOtop: A Distributed Hydrological Model with Coupled Water and Energy Budgets. Journal of Hydrometeorology, 7371–388. 10.1175/JHM497.1	closed	2006	a module overview describing a module	317

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