title: [AOD and angstrom parameters of aerosols observed by the Chinese sun hazemeter network from August to December 2004].
abstract: Atmospheric aerosol optical depth (AOD(lamda=500 nm)), Angstrom turbidity coefficient (beta) and Angstrom wavelength exponent (alpha) are obtained using the CERN sun hazemeter network from Aug to Dec, 2004. The results are as follows: At the Tibetan Plateau, Haibei and Lhasa, the mean of AOD is 0.09, 0.12; the mean of beta is 0.05, 0.13; the mean of a is 1.09, 0.06, respectively. At the Northeast of China, Hailun and Sanjiang, the mean of AOD is 0.14, 0.15; the mean of beta is 0.04, 0.06; the mean of a is 2.32, 1.58, respectively. At the desert region of North China, e.g., Fukang, Shapotou and Eerduosi, the range of averaged AOD is from 0.17 to 0.32; the range of averaged beta is from 0.09 to 0.19; the range of averaged a is from 0.68.to 1.28. At the forest areas, e.g. Changbai Mountain, Beijing forest and Xishuangbanna, the range of averaged AOD is from 0.19 to 0.42; the range of averaged beta is from 0.12 to 0.19; the range of averaged a is from 1.11 to 1.25. At agriculture areas, e.g. Shenyang, Fengqiu, Taoyuan and Yanting, the range of averaged AOD is from 0.34 to 0.68; the range of averaged beta is from 0.18 to 0.38; the range of averaged a is from 0.97 to 1.39. At the littoral areas and the lake of East China, e.g. Jiaozhou Bay, Shanghai City and Tai Lake, the range of averaged AOD is from 0.49 to 0.68; the range of averaged beta is from 0.21 to 0.29; the range of averaged a is from 1.24 to 1.37. At the inland cities, Beijing City and Lanzhou City, the mean of AOD is 0.47, 0.81; the mean of beta is 0.20, 0.45; the mean of a is 1.66, 0.89, respectively. The variations of aerosol properties at nineteen stations are explained in the paper.
authors.affiliation: Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China. wys@mail.iap.ac.cn
authors.forename: Yue-si
authors.initials: YS
authors.lastname: Wang
authors.forename: Jin-yuan
authors.initials: JY
authors.lastname: Xin
authors.forename: Zhan-qing
authors.initials: ZQ
authors.lastname: Li
authors.forename: Pu-cai
authors.initials: PC
authors.lastname: Wang
authors.forename: Shi-gong
authors.initials: SG
authors.lastname: Wang
authors.forename: Tian-xue
authors.initials: TX
authors.lastname: Wen
authors.forename: Yang
authors.initials: Y
authors.lastname: Sun
mesh_terms: D000336:Aerosols / Q000032:analysis* / Q000737:chemistry; D000393:Air Pollutants / Q000032:analysis* / Q000737:chemistry; D002681:China; D002980:Climate; D004784:Environmental Monitoring / Q000379:methods* / Q000706:statistics & numerical data; D055095:Optics and Photonics; D010316:Particle Size; D012016:Reference Values; D012621:Seasons
chemical_list: D000336:Aerosols; D000393:Air Pollutants