Geography Reference
In-Depth Information
Regional social-
econom ic
condition
Land use
Urbanization
pattern scenarios
Built-up
Food
security
change historic
demand
data
Asynchronous speed
Transfer rules for part itions
Global stopping condition
Partitioned and asynch ron ous cellular automata model
Scenario simulation results of urban land expansion
Centralized urbanization
scenario
Decentralized urbanization
scenario
Baseline scenario
WRF model
Scenario analysis of urban expansion on climate change
Decentralized
urbanization
Baseline
Centralized urbanization
Fig. 6.16
Research framework of scenario analysis of urban land expansion on climate change
impacts
centralized urban land expansion scenario, and decentralized urban expansion
scenario. On this basis, the Partitioned and Asynchronous Cellular Automata
model is employed to simulate urban land expansion under different scenarios. In
Partitioned and Asynchronous Cellular Automata model, urban land expansion
scenarios and regional socioeconomic development conditions are used to cali-
brate asynchronous evolving speed, regional land use change laws and regional
differences of socioeconomic conditions are used to calibrate transformation rules
in each partition, and built-up demand decided by economic development and
farmland demand decided by food security are used to calibrate global stopping
condition. After these, urban land expansion patterns under different scenarios in
Wuhan Metropolitan can be carried out.
Scenario Analysis of Urban Land Expansion on Surface Climate
The underlying surface data of Wuhan Metropolitan for climate model are pro-
cessed first. By scale transformation and type transformation, scenario simulation
results of urban land expansion can be converted to underlying surface data for
