Impact model: WEB-DHM-SG

The Water and Energy Budget-based Distributed biosphere Hydrological Model with improved Snow physics (WEB-DHM-S) combined the SiB2 land surface model, the GBHM hydrological model, a physically based snowmelt module from SSiB3, a physically based rain-snow temperature threshold dataset, and spatial distributed river depth and width data.

Sector
Water (global)
Region
global
Contact Person

Information for the model WEB-DHM-SG is provided for the simulation rounds shown in the tabs below. Click on the appropriate tab to get the information for the simulation round you are interested in.

Basic information
Reference Paper: Main Reference: Qi, W., Feng, L., Liu, J., Yang, H. et al. Snow as an important natural reservoir for runoff and soil moisture in Northeast China. Journal of Geophysical Research: Atmospheres,None,,2020
Reference Paper: Other References:
Resolution
Spatial Aggregation: regular grid
Spatial Resolution: 0.5°x0.5°
Temporal Resolution Of Input Data: Climate Variables: daily
Temporal Resolution Of Input Data: Co2: annual
Temporal Resolution Of Input Data: Land Use/Land Cover: annual
Temporal Resolution Of Input Data: Soil: constant
Input data sets used
Observed Atmospheric Climate Data Sets Used: GSWP3-W5E5, GSWP3
Land Use Data Sets Used: Historical, gridded land use
Other Data Sets Used: Land-sea mask
Climate Variables: huss, sfcWind, tas, rlds, rsds, ps, pr
Spin-up
Was A Spin-Up Performed?: Yes
Spin-Up Design: The first 10 years.
Natural Vegetation
Natural Vegetation Partition: One vegetation type in each grid.
Natural Vegetation Dynamics: Dynamic of LAI is from the Visit model, MODIS and LAI3g data. Photosynthesis variations are considered.
Natural Vegetation Cover Dataset: From the SiB2 classification
Soil
Soil Layers: Three layers. The first layer is 0.05 m.
Land Use
Land-Use Change Effects: Dynamic of LAI is from the Visit model, MODIS and LAI3g data. Photosynthesis variations are considered.
Vegetation
Is Co2 Fertilisation Accounted For?: True
How Is Vegetation Represented?: Dynamic of LAI is from the Visit model, MODIS and LAI3g data. Photosynthesis variations are considered. The LAI is influenced by CO2.
Methods
Potential Evapotranspiration: Water and energy budget
Snow Melt: A physically based snowmelt module from SSiB3