- Notice
- What is TRIP2?
- Download TRIP2
- Install TRIP2
- Prepare the input runoff data
- Prepare the maps required by TRIP2
- Edit run script
- Launch simulation
TRIP is an acronym of "Total Runoff Integrating Pathways".
TRIP2 is the latest version (version 2.0) of the TRIP model [Oki and Sud, 1998]. TRIP2 can help to isolate the river basins, inter-basin translation of water through river channels, as well as collect and route runoff to the river mouth(s).
The main differences between TRIP2 and TRIP can be listed in the following table:
| TRIP | TRIP2 | |
| Calculation Approach | constant velocity | variable velocity |
| Ground Water scheme | NO | YES |
| Spatial Resolution | Fix | Flexible |
| Resolution of Input Runoff and flow direction map | must be the same | can be different |
| Extractability to run for a small region of interest | NO | YES |
| Required maps | flow direction map, river sequence map | flow direction map, river sequence map, elevation map |
| Output variables | River discharge [kg/s], river storage [kg] | River discharge [kg/s], river storage [kg], river depth [m], river velocity [m/s], ground water storage [kg], manning coefficients [-], river width [m] |
| Parameters | constant velocity value, river meandering value | ground water time delay constant, river meandering value |
| Input/Output format | binary | netCDF |
Reference: Ngo-Duc, T., T. Oki, S. Kanae, 2007: A variable stream flow velocity method for global river routing model: Model description and preliminary results, Hydrology and Earth System Sciences Discussions, 4, 4389-4414.