Concentration and seasonal variation of Be-10 in surface aerosols of Lhasa, Tibet

• Published in: Chinese Science Bulletin
• Main Authors: Huang Jie, Kang ShiChang, Shen ChengDe, Cong ZhiYuan, Liu KeXin, Wang Wei, Liu LiChao
• Other Authors: Kang, SC (reprint author), Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China., Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing 100085, Peoples R China., Chinese Acad Sci, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China., Chinese Acad Sci, Guangzhou Inst Geochem, Key Lab Isotope Geochronol & Geochem, Guangzhou 510000, Guangdong, Peoples R China., Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China., Tibet Meteorol Bur, Inst Plateau Atmosphere & Environm Sci, Lhasa 850000, Peoples R China., Chinese Acad Sci, Cold & Arid Regions Environm & Engn Res Inst, Lanzhou 730000, Peoples R China., Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China.
• Format: Journal/Newspaper
• Language: English
• Published: 科学通报 英文版 2010
• Subjects: Be-10 concentration; background value; seasonal variation; Lhasa; STRATOSPHERE-TROPOSPHERE EXCHANGE; ATMOSPHERIC DEPOSITION; ANTARCTIC OZONE; ICE; TRANSPORT; PLATEAU; BERYLLIUM-7; ALTITUDE; PB-210; TRACER; Antarctic; Antarc*
• Online Access: https://hdl.handle.net/20.500.11897/242606; https://doi.org/10.1007/s11434-010-3233-1

Thirty samples of total suspended particles were collected at a site in western part of Lhasa, Tibet from August 2006 to July 2007. The Be-10 concentrations were determined by Accelerator Mass Spectrometer (AMS). Analysis of correlation between Be-10 concentrations and meteorological factors revealed that the wet scavenging has little effect on Be-10. Be-10 can be used as a proxy of transport processes of the upper atmosphere over the Tibetan Plateau. Analysis of correlation between Be-10 concentrations and NCEP reanalysis data demonstrated that higher Be-10 concentrations in spring were probably caused by the atmosphere exchange from stratosphere to troposphere during February to June. Lower Be-10 concentrations during August to September were consistent with the synchronous lower O-3 values, suggestive of both Be-10 and O-3 were probably influenced by the atmosphere exchange from troposphere to stratosphere. Multidisciplinary Sciences SCI(E) 0 ARTICLE 23 2572-2578 55