Greenhouse gas-induced climate change simulated with the CCS second-generation general circulation model
- Canadian Climate Centre, Downsview (Canada)
The Canadian Climate Centre second-generation atmospheric general circulation model coupled to a mixed-layer ocean incorporating thermodynamic sea ice is used to simulate the equilibrium climate response to a doubling of CO[sub 2]. The results of the simulation indicate a global annual warming of 3.5 C with enhanced warming found over land and at higher latitudes. Precipitation and evaporation rates increase by about 4 percent, and cloud cover decreases by 2.2 percent. Soil moisture decreases over continental Northern Hemisphere land areas in summer. The frozen component of soil moisture decreases and the liquid component increases in association with the increase of temperature at higher latitudes. The simulated accumulation rate of permanent snow cover decreases markedly over Greenland and increases slightly over Antarctica. Seasonal snow and sea ice boundaries retreat, but local decreases in planetary albedo are counteracted by tropical increases, so there is little change in the global average. 39 refs.
- OSTI ID:
- 6896065
- Journal Information:
- Journal of Climate; (United States), Vol. 5:10; ISSN 0894-8755
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AIR-WATER INTERACTIONS
COMPUTERIZED SIMULATION
ATMOSPHERIC CIRCULATION
CARBON DIOXIDE
ECOLOGICAL CONCENTRATION
ATMOSPHERIC PRECIPITATIONS
CANADIAN ORGANIZATIONS
CLOUD COVER
EVAPORATION
GREENHOUSE EFFECT
METEOROLOGY
SNOW
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CLIMATIC CHANGE
NATIONAL ORGANIZATIONS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SIMULATION
540110*
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)