Abstracts for the 6th International GAME Conf.
3-5 December 2004
Kyoto Japan
Summary of the AWS observation in the Tibetan Plateau after GAME-Tibet IOP 1998
Sun, Fangling (10), Gu, Lianglei (10), Qian, Zeyu (10), Liu, Jingmiao (13), Koike, Toshio (14), Tanaka, Kenji (1), Ishikawa, Hirohiko (2), Oku, Yuichirou (2), Ueno, Ken'ichi (4), Haginoya, Shigenori (5), Ma, Yaoming (10), Hu, Zeyong (10), Li, Maoshang (10), Ma, Weiqiang (10)
(10) Cold and Arid Regions Environmental Engineering Research Institute (CAREERI), Chinese Academy of Science
(13) Institute of Eco-environment and Agro-meteorology, Chinese Academy of Meteorological Sciences (CAMS)
(14) Department of Civil Engineering, University of Tokyo
(1) Department of Architecture and Civil Engineering, Kumamoto University
(2) Disaster Prevention Research Institute (DPRI), Kyoto University
(4) Faculty of Environmental Science, University of Shiga Prefecture
(5) Meteorological Research Institute (MRI), Japan Meteorological Agency
The Tibetan Plateau works as an elevated heat source of
mid-troposphere and has significant influence on the Asian summer
monsoon circulation. Ground based hydro-meteorological observations by
AWS (Automated Weather Stations) and so on, has been conducted in the
Tibetan Plateau as the reference site in the framework of CEOP Asian
Australian Monsoon Project (CAMP). This presentation introduces the AWS
observation and some preliminary results using observed data. The AWSs
of CAMP-Tibet network covers both in the plateau scale and in
meso-scale. Four AWSs (D66, TTH, Amdo and MS3608) has been working since
the GAME-Tibet POP in 1997 and other AWSs was installed in the summer of
2000 and 2002. Continuous datasets of the meteorological variables have
been obtained for over 2 - 6 years (differs site by site). Annual and
inter-annual variation of meteorological variables could be seen from
observed data. The specific humidity began to increase in April and
became as high as 8-10 g/kg in July and August. The specific humidity
began to decrease rapidly in late September and became as low as 1 g/kg
in winter season. The meridional gradient of specific humidity can be
seen during the wet season; the specific humidity decreases as it goes
north. In 2002, however, meridional gradient of the specific humidity
was not clearly seen. The snowfall event in winter and spring is
important in increasing the specific humidity as the progress of the
summer monsoon, as seen in the variation of the surface albedo.
Submittal Information
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Department of Architecture and Civil Engineering, Kumamoto Univ. | |
| Address : | Presentation : |
Kurokami 2-39-1, Kumamoto 464-8601 | |
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ktanaka@gpo.kumamoto-u.ac.jp | |