THE IMPACTS OF ORBITAL PARAMETERS ON SUMMER PRECIPITATION OVER CHINA IN THE HOLOCENE

• Published in: Journal of Tropical Meteorology Vol. 17; no. 2; pp. 103 - 112
• Main Author: 黄建斌 王绍武 闻新宇 周天军 朱锦红 杨保 任国玉
• Format: Journal Article
• Language: English
• Published: Guangzhou Guangzhou Institute of Tropical & Marine Meteorology 01.06.2011; Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871 China%LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100871 China%Illinois State Water Survey, Department of Natural Resources, University of Illinois at Urbana-Champaign, Champaign, Illinois, USA%Key Laboratory of Desert and Desertification, Chinese Academy of Sciences, Lanzhou 734000%Laboratory for Climate Studies, China Meteorological Administration, Beijing 100081 China
• Subjects: climate simulation; climate humidity; orbital parameters; Holocene
• ISSN: 1006-8775
• DOI: 10.3969/j.issn.1006-8775.2011.02.002

The impact of orbital parameters on the climate of China in the Holocene is simulated from 11kaBP to 0kaBP with an interval of 1ka using National Center for Atmospheric Research （NCAR） Community Atmosphere Model version 2 （CAM2）. The geographic distributions of summer precipitation around both 9kaBP and 4kaBP were realistically captured by CAM2, compared to the proxy data collected from 80 stations. Among all orbital parameters, the precession plays a major role in computing solar radiation, which dominates the variations of summer precipitation over China during the Holocene. The summers around 9kaBP were the wettest in China. Later on, the precipitation gradually reduced to the minimum around 0kaBP by about 10%. This tremendous change occurred from the Northeast China and the eastern Inner Mongolia extending southwestwards to the Qinghai-Tibet Plateau, especially over the Qinghai-Tibet Plateau.