J4 ›› 2008, Vol. 26 ›› Issue (2): 36-40.

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Ana lysis on Rad ia tion Forc ing of Dust Aerosol in a Spr ing Typ ica lDust Storm Even tin the Cen tre of Takla Makan Desert

KONG Dan1, 2, 3 , HE Qing1,2 , ZHANG Ruijun1,2,3 , HUANG Xiangchun4   

  1. 1. Institute of Desert and M eteorology, CMA, U rum qi 830002, China;2. Key Laboratory of Tree - ring Physiochem ical Research of China M eteorological Adm inistration, U rum qi 830002, China;3. X injiang N orm al University, U rum qi 830054, China; 4. B azhou M eteorological B ureau; Kuerle 841000, China
  • Received:2008-02-27 Revised:2008-05-23 Online:2008-06-30 Published:2008-06-30

塔克拉玛干沙漠腹地春季一次沙尘暴沙尘气溶胶的辐射特征

孔 丹1, 2, 3 ,何 清1, 2 ,张瑞军1, 2, 3 ,黄向春4
  

  1. 1. 中国气象局乌鲁木齐沙漠气象研究所,新疆乌鲁木齐 830002; 2. 中国气象局树木年轮理化研究重点开放实验室,新疆乌鲁木齐 830002; 3. 新疆师范大学,新疆乌鲁木齐 830054; 4. 新疆巴州气象局,新疆库尔勒 841000
  • 作者简介:孔丹(1982 - ) ,女,汉族,在读硕士,主要从事资源开发环境保护研究. E-mail: shirly - 921@163. com
  • 基金资助:

    :国家自然科学基金(40775019) 、中国沙漠气象科学研究基金( SQJ2005001) 、中国气象局多轨道业务建设项目(QY20070201)共同资助

Abstract:

on the meteorological data and PM10 data from the weather station in the centre of the TaklaMakan desert, the localradiation characteristics over there on Ap ril 22, 2007, on which the sandstorm weather event occurred, and the correlation of dust aero sol and the net radiation were analyzed and compared with the sunshine day’s radiation characteristics on Ap ril 15. The results indicate that the radiation forcing of dust aerosol caused surface temperature decreasing in daytime and increasing at night. During the observa tion period, the peak value of the total radiation decreased by 507W /m2 , and the peak value of long - wave radiation increased by 185W /m2. The maximum of the net radiation decreased by 198W /m2 in day time and increased by 40W /m2 at night.

Key words: TaklaMakan desert, dust aerosol, radiation forcing

摘要:

利用塔中气象站地面辐射等气象资料结合PM10 (空气动力学当量≤10μm的悬浮颗粒)质量浓度资料,以2007年4月15日晴天辐射特征为背景对4月22日塔克拉玛干沙漠腹地发生的沙尘暴天气进行局地辐射特征和沙尘气溶胶与净辐射作相关分析。结果表明白天沙尘的辐射强迫对地表有冷却作用,夜间起保温作用。观测期间,总辐射日峰值减少量为507W /m2 ,地面长波日峰值增加量为185W /m2 ,地面净辐射能量收支表现为白天的日峰值减少量为198W /m2 ,夜间的日峰值增加量为40W /m2

关键词: 塔克拉玛干沙漠, 沙尘气溶胶, 辐射强迫

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