Modelling tool capability overview
Revision as of 13:43, 27 April 2021 by Julia Glenday (talk | contribs)
| Characteristic | WRSM-Pitman | SPATSIM Pitman | ACRU | SWAT | MIKE-SHE |
|---|---|---|---|---|---|
| Current curator / developer | Bailey & Pitman Water Resources Ltd | Rhodes University, Institute of Water Resources | University of KwaZulu Natal, Centre for Water Resources Research | Texas A&M University & US Department of Agriculture | Danish Hydrologic Institute (DHI) |
| Free to access | yes | yes | yes | yes | no |
| Version reviewed | WRSM-Pitman version 2.9 | SPATSIM GWv3 Global Options Threaded model | ACRU 4 | SWAT & ArcSWAT 2012 | MIKE-SHE & MIKE Hydro River, version 2017 |
| Reference documents | Theory manual: (Bailey, 2015);
User manual: (Bailey and Pitman, 2016) |
Theory papers: (Hughes, 2004, 2013; Kapangaziwiri, 2007);
User manual: (Hughes, 2019) |
Theory manual: (Schulze, 1995);
User manuals: (Clark et al., 2012; Schulze and Davis, 2018) |
Theory manual: (Neitsch et al., 2011);
User manuals: (Arnold et al., 2012) |
Theory manuals:(DHI, 2017a, 2017b);
User’s manuals:(DHI, 2017d, 2017c) |
| Developed in South Africa | yes | yes | yes | no | no |
| Intended spatial scale
(catchment or model area) |
Local to regional:
no suggested min-max model size |
Local to regional:
10-10,000’s of km2, more typical: 100-1,000’s km2 |
Field to regional:
no suggested min-max model size |
Field to regional:
no suggested min-max model size |
Field to regional:
no suggested min-max model size |
| Spatial discretisation | Modules (runoff modules (subcat), special sub-areas, channels, reservoirs) linked by routes | Subcatchments + limited internal sub-area types | HRUs within subcatchments | HRUs within subcatchments | Fully distributed (gridded)
OR combinations of grids and zones for different process calculations within subcatchments (if all process zones align, would act like HRUs) |
| Intended subcat size < 1,000 km2 | Intended subcat size 5-50 km2;
HRU size < 30km2 |
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| Timestep | Monthly* | Monthly* | Daily | Daily, sub-daily | Daily, sub-daily (dynamic timestep length, specified by processes) |
| Intended modelling applications (as documented): | |||||
| Water balance estimation | yes | yes | yes | yes | yes |
| Design hydrology (flood peaks) | yes | yes | yes | ||
| Supply planning (general) | yes | yes | yes | yes | yes |
| Reservoir yield | yes | yes | yes | yes | yes |
| Irrigation planning | yes | yes | yes | yes | |
| Groundwater recharge | yes | yes | yes | yes | yes |
| Groundwater-surface water (GW-SW) interactions & pumping impacts | yes | yes | yes | ||
| Land cover change impacts | yes | yes | yes | yes | yes |
| Climate change impacts | yes | yes | yes | yes | yes |
| Application limitations (as documented) | Not for peak flow, flood assessment, or design hydrology | Not for peak flow, flood assessment, design hydrology | Not represent deep GW processes - not for GW pumping impact | Not represent deep GW processes | (None listed in documentation for system as whole, only for certain process options within it. The many options do steepen the learning curve for use.) |
| Specific development focuses particular to tool |
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