지표 조건 변질에 관련된 아시아 하계 몬순의 대순환 모형 실험 연구

다국어 초록 (Multilingual Abstract)

Probable induction of climatic change in monsoonal variability by the anthropogenic changes suspected in some land surface characteristics has been considered with a coupled general circulation model. Transpiration modulation by vegetation canopy is being handled by the BATS(Biosphere-Atmosphere Transfer Scheme).
The experimental data were produced by the CGCM with the BATS now implanted via the YONU AGCM Tr.7 were compared to the control data produced previously by the YONU AGCM Tr.7 without the BATS. For the control data of the AGCM Tr.7, the annually varying climatological SST was prescribed. For the experimental data of the CGCM, the land surface properties required in the BATS were given by prescribing 18 types of vegetation, 12 types of soil texture and 8 types of soil color, respectively.
Three experimental runs of the CGCM have been obtained with different land surface conditions. The parameters for differing surface conditions in the present study are the leaf area index or LAI, the surface roughness length,the surface vegetation albedo, and the soil albedo. The first experiment or EXPI was a test for the effects of doubled vegetation and soil albedo. this experiment shows a decrease in ground temperature(Tg) of deserts but and increase in Tg of semi-arid regions. EXP2 was seeking the effects of reduced LAI and roughness length. The concomitant reductions of LAI and roughness length have been given by the satellite-derived data. A dominant decrease of LAI located in the African semi-desert area led to an increase in Tg due to reduction of protection from the solar radiation. In the high latitudes, however, Tg decreased as a result. Finally, EXP3 was seeking the effects of surface albedo change. Areal extension of deserts induced an increase in Tg and a simulaneous decrease in precipitation, and thereby was confronted with an active positive feedback.

목차 (Table of Contents)

• 목차
• Table list
• Fugure list
• 1. 연구 결과 요약문
• 2. 연구 결과 발표 실적
• Abstract
• Introduction
• Prescription of land surface parameters for coupling to GCM
• Model Description and coupling
• Fine mesh parameterization of land surface processes
• Experiments and Results
• References
• Monsoon variability induced by land conditions: An experimental studywith a general circulation model
• Abstract
• 1. Introduction
• 2. Prescription of land surface parameters for the coupling to GCM
• 3. Model Description and coupling
• 4. Fine mesh parameterization of land surface processes
• 5. Experiments and Results
• References
• 지표 알베도 변화가 북반구 하계 기후에 미치는 영향에 대한 GCM연구
• Abstract
• 1. 서론
• 2. 모형 및 실험
• 3. 실험 초기 조건
• 4. 실험 결과 분석 및 토의
• 5. 요약 및 결론
• 참고문헌
• Figure legend