机构地区:[1]Polar Research Institute of China [2]Key Laboratory for Research in Galaxies and Cosmology,Department of Astronomy,University of Science and Technology of China,Chinese Academy of Sciences [3]Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences
出 处:《Advances in Polar Science》2015年第2期140-146,共7页极地科学进展(英文版)
基 金:supported by the Chinese Polar Environment Comprehensive Investigation & Assessment Programs (Grant nos. CHINARE-2013-02-03 and CHINARE-2014-02-03);the Polar Science Innovation Fund for Young Scientists of Polar Research Institute of China (Grant no. CX20130201);the Shanghai Natural Science Foundation (Grant no. 14ZR1444100);the National Basic Research Program of China (973 Program, Grant no. 2013CB834905)
摘 要:This is the second paper of a series devoted to atmospheric optical turbulence Cn^2 observation using a mobile polar atmospheric parameter measurement system. We present the initial results of Cn^2 measurement at Antarctic Taishan Station using micro-thermal sensors and a three-dimensional sonic anemometer at height -2.0 m above the snow surface. The site testing experiments were carried out during the 30th Chinese National Antarctic Research Expedition (CH1NARE). We collected about 1 000 h of data between 30 December 2013 and 10 February 2014. The C,: curve exhibits clear daily structures, with two peaks around midnight and midday and two troughs around 7:30 and 17:00 local time (UTC+5). The mean C,2 is 2.7×10^-15 m^-2/3 and the 25th and 75th percentiles of the C,2 cumulative distribution are 9.6×10^-16 m^-2/3 and 6.2×10^-15 m^-2/3, respectively. Meteorological parameters such as temperature, relative humidity, wind speed, and air pressure are also presented.This is the second paper of a series devoted to atmospheric optical turbulence Cn^2 observation using a mobile polar atmospheric parameter measurement system. We present the initial results of Cn^2 measurement at Antarctic Taishan Station using micro-thermal sensors and a three-dimensional sonic anemometer at height -2.0 m above the snow surface. The site testing experiments were carried out during the 30th Chinese National Antarctic Research Expedition (CH1NARE). We collected about 1 000 h of data between 30 December 2013 and 10 February 2014. The C,: curve exhibits clear daily structures, with two peaks around midnight and midday and two troughs around 7:30 and 17:00 local time (UTC+5). The mean C,2 is 2.7×10^-15 m^-2/3 and the 25th and 75th percentiles of the C,2 cumulative distribution are 9.6×10^-16 m^-2/3 and 6.2×10^-15 m^-2/3, respectively. Meteorological parameters such as temperature, relative humidity, wind speed, and air pressure are also presented.
关 键 词:micro-thermal sensors three-dimensional sonic anemometer turbulence site testing Antarctic Plateau Kunlun Station Taishan Station
分 类 号:P412.3[天文地球—大气科学及气象学]
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