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Community Water Model (CWatM)

Hydrological-model_no-labels2

Sours: https://cwatm.iiasa.ac.at/

Research model: CWatM

Community Water Model (CWatM) is a hydrological model simulating the water cycle daily at global and local levels, historically and into the future, maintained by IIASA BNR Water Security group. CWatM assesses water supply, demand, and environmental needs, including water management and human influence within the water cycle. 

 

Basic sepcifications of the model:

Name of model

Community Water Model (CWatM)

About the model

 

Purpose of model

Global/regional assessment of integrated water resources management, nexus issues and hydro-economic modelling

Developer

IIASA, 2016

 https://cwatm.iiasa.ac.at/ https://github.com/iiasa/CWatM

Scale

 

Spatial

1km resolution, Global and Local scale

Temporal

Daily (sub-daily timestep for soil and river routing)

Process description

 

Model type

Hydrological rainfall-runoff and channel routing

Heat

Yes

Interception

Yes

Snow dynamics

Day-degree method

Infiltration & water flow

Xinanjiang model/preferential bypass flow & Kinematic wave approx.

Frozen soil

Yes

Surface runoff

Yes – ARNO scheme

Crop growth

Yes

Macropore flow

No

Nitrogen transport

No

Evapotranspiration

Penman-Montieth/ Hargreaves/Hamon options

Phosphorus transport

No

Artificial drainage

No

Particle transport

No

Percolation

Yes

Pesticide transport

No

Other

Groundwater flow via linear reservoir, Lakes & reservoirs, glaciers, water demands/consumption, irrigation, modular structure for easy linkage to other models