SciTech Connect

Title: JASON. Long term impact of atmospheric carbon dioxide on climate. Technical report

JASON. Long term impact of atmospheric carbon dioxide on climate. Technical report The questions of the sources of atmospheric carbon dioxide are addressed; distribution of the present carbon dioxide among the atmospheric, oceanic, and biospheric reservoirs is considered; and the impact on climate as reflected by the average ground temperature at each latitude of significant increases in atmospheric carbon dioxide is assessed. A new model for the mixing of carbon dioxide in the oceans is proposed. The proposed model explicitly takes into account the flow of colder and/or saltier water to great depths. We have constructed two models for the case of radiative equilibrium treating the atmosphere as gray and dividing the infrared emission region into nine bands. The gray atmosphere model predicts an increase of average surface temperature of 2.8/sup 0/K for a doubling of CO/sub 2/, a result about a degree less than the nine band model. An analytic model of the atmosphere was constructed (JASON Climate Model). Calculation with this zonally averaged model shows an increase of average surface temperature of 2.4/sup 0/ for a doubling of CO/sub 2/. The equatorial temperature increases by 0.7/sup 0/K while the poles warm up by 10 to 12/sup 0/K. The JASON climate model suffers from a number of fundamental weaknesses. The role more » of clouds in determining the albedo is not adequately taken into account nor are the asymmetries between the northern and southern hemisphere. (JGB) « less
Authors: ; ;
Publication Date:
OSTI Identifier:OSTI ID: 5829641
Report Number(s):SRI-5793; JSR-78-07
DOE Contract Number:EY-76-C-03-0115-136
Resource Type:Technical Report
Research Org:SRI International, Arlington, VA (USA)
Country of Publication:United States
Language:English
Subject: 54 ENVIRONMENTAL SCIENCES; CLIMATES; GREENHOUSE EFFECT; MATHEMATICAL MODELS; BIOSPHERE; CARBON DIOXIDE; CHEMICAL REACTIONS; CLOUDS; DATA COMPILATION; DISTRIBUTION; EARTH ATMOSPHERE; EQUATIONS; EQUILIBRIUM; FORECASTING; GRAPHS; INFRARED RADIATION; RADIANT HEAT TRANSFER; SEAS; TABLES; VISIBLE RADIATION; CARBON COMPOUNDS; CARBON OXIDES; CHALCOGENIDES; DATA; DATA FORMS; ELECTROMAGNETIC RADIATION; ENERGY TRANSFER; ENVIRONMENT; HEAT TRANSFER; INFORMATION; NUMERICAL DATA; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; SURFACE WATERS 500100* -- Environment, Atmospheric-- Basic Studies-- (-1989)