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| 1 | 西风急流的季节转换特征:希夏邦马峰达索普冰川6900m处实地观测显示文摘为了解极高海拔地区的气候特征和气候变化,2005年8月4日,在喜马拉雅山中段希夏邦马峰达索普冰川(28°23.04′N,85°43.72′E,海拔6900m)架设了一台自动气象站(AWS),对极高海拔地区的气候进行了连续自动观测.探讨了此AWS记录的一整年的观测结果,分析了风向、风速、气温、气压和湿度等指标.分析结果发现:该区自2005年10月10日至2006年4月21日期间受到西风急流的强烈影响,而5~9月受到印度季风的影响.西风急流的季节转换以各气象要素发生突变为特征.受西风急流的影响,研究区冬季风速极高,风速波动剧烈,多大风日.气温和气压波动剧烈,气温的日较差减小而气压的日较差增大.相对湿度和比湿剧减,空气干燥.夏季受印度季风的影响,相对湿度和比湿处于高值状态.此外,还分析了AWS所在位置的再分析资料,结果证实AWS所在位置在2005年10月10日至2006年4月21日期间受到西风急流的强烈影响,西风急流的季节转换是以各气象要素发生突变为特征的观测事实. | 李生海 姚檀栋 田立德 王朋岭 | 2011 | 科学通报2011，56，20： | 3 |
| 2 | Seasonal transition characteristics of the westerly jet: Study based on field observations at an altitude of 6900 m on the Mt. Xixiabangma Dasuopu glacier显示文摘To better understand ultra-high-altitude climate characteristics and their changes, an automatic weather station was installed on August 4, 2005 on the Mt. Xixiabangma Dasuopu glacier (28°23.04′N, 85°43.72′E, 6900 m a.s.l.) in the middle of the Himalayas. Mountain weather conditions were observed continuously and automatically. This paper is the first to publish meteorological data for a whole year for a high-elevation region, and analyze wind direction, wind speed, air temperature, air pressure and humidity. Analysis of the observation data reveals that this region was strongly influenced by the westerly jet from October 10, 2005 to April 21, 2006 and by the Indian monsoon from May to September. The seasonal transitions of the westerly jet were characterized by changes in meteorological elements. In winter, influenced by the westerly jet, the wind speed in the study region was very high and fluctuated violently, gale days were frequent, temperature and air pressure fluctuated dramatically, the diurnal range of temperature decreased and the diurnal range of air pressure increased, relative humidity and specific humidity declined sharply, and air was dry. In summer, influenced by the Indian monsoon, the relative humidity and specific humidity were high. In addition, we analyzed reanalysis data for the location of the automatic weather station. The results confirmed that this region was strongly affected by the westerly jet from October 10, 2005 to April 21, 2006 and the observations that the seasonal transitions of the westerly jet were characterized by changes in meteorological elements. | LI ShengHai YAO TanDong TIAN LiDe WANG PengLing | 2011 | Chinese Science Bulletin2011，56，18： | 2 |
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