摘要
该文通过改变太阳常数,利用NCAR气候系统模式CSM1.4研究了亚洲夏季风对强外辐射强迫变化的响应。结果表明:随太阳常数增加,局地增温幅度变化很大,中高纬地区比低纬地区增暖幅度强,这在太阳常数增加较大的试验中表现尤为明显;随太阳常数增大越大,大气温度升高越高,对流层有强烈增温,对流层高层更为显著;随太阳常数增大,亚洲夏季风系统的响应越强,太平洋副热带高压和南亚高压强度增强明显,并且太阳常数增加越大,高压强度越强,但形式有所不同,500 hPa太阳常数增加2.5%高压强度随纬度增高增强幅度变小,太阳常数增加10%和25%高压强度随纬度增高增强幅度变大。100 hPa太阳常数增加2.5%和10%高压强度随纬度增高增强幅度变小,太阳常数增加25%高压强度随纬度增高增强幅度变大。
Using NCAR CSM Version 1.4, Asian Summer monsoon＇ s response to the varies of the powerful external radiative forcing （counterpart of the solar constant changing） is observed, results show that： i） local temperature in- creasing with the solar constant increasing, temperature in mid - higher latitude areas is higher than lower, that is more obvious in big solar constant experiment ; ii） air temperature adding with the solar constant, troposphere＇ s tem- perature enlarging violenced, especially on high layer; iii） the response of Asian monsoon system （ in particular the Pacific subtropical high and South Asia high） enhancing with solar constant, and the bigger of the solar constant, the higher of the highs, but for different experiments, the echoes is different, when solar constant increases 2. 5% （ 10% and 25% ）,the intension increasing scale of the highs with latitude is small（big） at 500 hPa, when solar constant adds 2. 5% and 10% （25%）, the intension adding scale of the highs with latitude is small（big） at 100 hPa.
出处
《贵州气象》
2013年第4期7-14,共8页
Journal of Guizhou Meteorology
基金
中国气象局成都高原气象开放实验室基金"强外辐射强迫异常下青藏高原地区的气候响应研究"资助
关键词
亚洲夏季风
太阳常数
数值试验
Asian summer monsoon
solar constant
numerical experiment
