Vertical structure of troposphere in the floating ice zone over the Arctic Ocean

MA Yong-feng; BIAN Lin-gen; ZHOU Xiu-ji; LU Chang-gui; DOU Ting-feng; TANG Jie

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MA Yong-feng, BIAN Lin-gen, ZHOU Xiu-ji, LU Chang-gui, DOU Ting-feng, TANG Jie. Vertical structure of troposphere in the floating ice zone over the Arctic Ocean[J]. Haiyang Xuebao, 2011, 33(2): 48-59.

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MA Yong-feng, BIAN Lin-gen, ZHOU Xiu-ji, LU Chang-gui, DOU Ting-feng, TANG Jie. Vertical structure of troposphere in the floating ice zone over the Arctic Ocean[J]. Haiyang Xuebao, 2011, 33(2): 48-59.

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Vertical structure of troposphere in the floating ice zone over the Arctic Ocean

1.
Chinese Academy of Meteorological Sciences, Beijing 100081, China;Graduate University of Chinese Academy of Sciences, Beijing 100049, China
2.
Chinese Academy of Meteorological Sciences, Beijing 100081, China

Received Date: 2010-07-25

Abstract

Abstract

The vertical structure of troposphere over the Arctic Ocean floating ice region (79 85.5°N,144° 170°W) is presented by using the GPS radiosonde data obtained from the 3rd Chinese Arctic Expedition 2008. The results show that: the average temperature lapse rate of the middle troposphere is 6.47 ℃/km. The tropopause height (temperature) changes within 8.0 10.7 km(-59.4 -43.5 ℃), with a mean of 9.3 km(-50.5 ℃). The bottom height, strength of the stronger inversion in the boundary layer and the planetary boundary layer height all presents an obvious diurnal variation. The stronger inversion bottom height and the planetary boundary layer height are left to 850 and 1 000 m above at noon from 700 and 800 m at night, respectively. While the intensity of temperature inversion remarkably weakened from night to daytime.
- Arctic Ocean,
- thermal tropopause height,
- planetary boundary layer height (PBL height),
- GPS sounding

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References(29)

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