Some Aspects of Recent Research on the Qinghai-Xizang Plateau Meteorology

Gao, Ya; Mao-cang, Tang; Luo, Shuai; Shen, Zhongjie; Ci, Li

doi:10.1175/1520-0477(1981)062<0031:saorro>2.0.co;2

Cited by 59 publications

(46 citation statements)

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“…The importance of the Tibetan Plateau as a heat source for the summer monsoon has been discussed by many authors (Gao et al, 1981;Fu and Fletcher, 1985;Luo and Yanai, 1984;Murakami, 1987Murakami, , 1993. Li and Yanai (1996) suggested that the onset of the low-level monsoon southwesterlies, which occur on the south side of the Tibetan Plateau, are concurrent with the reversal of the meridional temperature gradient south of the Tibetan Plateau.…”

Section: Temperature Fields Over the Tibetan Plateaumentioning

confidence: 99%

Role of Warming over the Tibetan Plateau in Early Onset of the Summer Monsoon over the Bay of Bengal and the South China Sea

Ueda

Yasunari

1998

Journal of the Meteorological Society of Japan

101

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Section: Temperature Fields Over the Tibetan Plateaumentioning

confidence: 99%

Role of Warming over the Tibetan Plateau in Early Onset of the Summer Monsoon over the Bay of Bengal and the South China Sea

Ueda

Yasunari

1998

Journal of the Meteorological Society of Japan

101

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“…In this region, the intensity of disturbances, the frequency of occurrence of synoptic-and mesoscale systems, and the instability of the atmosphere are unique when compared with other regions of the same latitude and elevation (Gao et al, 1981). The boundary layer of the Plateau has the most frequent synoptic-scale and mesoscale pressure systems of all regions in the same latitude belt and of similar elevation.…”

Section: Resultsmentioning

confidence: 98%

“…The strong and active convectional activity is very important for the maintenance of the large-scale circulation system on the Plateau (Yang et al, 1990). During the summer half of the year, on average, a small high, or a low-pressure vortex and a shear line, forms every two days over the Plateau (Gao et al, 1981). The large-scale convergence environment usually forms in the afternoon in the monsoon season, which provides a favourable condition for the generation of local convection.…”

Section: Resultsmentioning

confidence: 99%

“…As the highest, largest and most complex plateau, the Tibetan Plateau has a significant influence on the global atmospheric circulation due to its dynamic and heat effects (Gao et al, 1981;Ye, 1981;Tao & Ding, 1981;Luo & Yanai, 1984;, 1999, 1999. Quantitative evaluation of areal precipitation is important for estimating the latent heat budget, understanding the water cycle processes over this unique highland, and evaluating water resources for the major rivers that originate from the Plateau.…”

Section: Introductionmentioning

confidence: 99%

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The spatially heterogeneous distribution of precipitation of the Anduo area, Tibetan Plateau, in summer 1998

Yang¹,

Gou²,

Wang³

et al. 2007

Hydrological Sciences Journal

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Examination of precipitation in the Tibetan Plateau is important to understanding the regional water cycle processes and the plateau-scale energy budget. Based on hourly precipitation data obtained during the GAME-Tibet intensive observation period at four sites, the spatial distribution of precipitation in summer 1998 within the Anduo area was examined. The results show that, between 1 July and 11 September 1998, the precipitation that occurred simultaneously (at the same hours) at the sites accounted for 6.9-15.3% of the total precipitation at each site during the study period. Even at the two observation sites that are only 20 km apart, the percentage of precipitation that occurred simultaneously was quite small. This indicates that precipitation occurred not only frequently but also very locally, except on several days with very strong monsoon precipitation. The limited observations highlight that the precipitation distribution is quite complex, and large-scale intensive precipitation observations are needed in the future to clarify the heterogeneity of precipitation on the Tibetan Plateau.Key words northern Qinghai-Xizang (Tibetan) Plateau; summer monsoon precipitation; spatial heterogeneous distribution; GAME-Tibet La distribution spatialement hétérogène des précipitations de la zone d'Anduo, Plateau Tibétain, pendant l'été 1998 Résumé L'étude des précipitations sur le Plateau Tibétain est importante pour comprendre les processus du cycle de l'eau régional ainsi que le bilan énergétique à l'échelle du plateau. La distribution spatiale des précipitations pendant l'été 1998 dans la zone d'Anduo a été étudiée sur la base de données horaires de précipitation obtenues en quatre sites durant la période d'observation intensive GAME-Tibet. Les résultats montrent que, entre le 1 er Juillet et le 11 Septembre 1998, les précipitations survenues simultanément (aux mêmes heures) aux différents sites représentent 6.9-15.3% des précipitations totales en chaque site durant la période d'étude. Même entre les deux sites qui ne sont distants que de 20 km, le pourcentage de précipitations simultanées est assez faible. Cela indique que les précipitations ont été non seulement fréquentes mais aussi très localisées, sauf lors de certains jours qui ont connu de fortes précipitations de mousson. Les observations limitées mettent en évidence que la distribution des précipitations est assez complexe et que des observations à grande échelle des précipitations sont nécessaire dans l'avenir afin de clarifier l'hétérogénéité des précipitations sur le Plateau Tibétain.

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“…Tibet is one of the most intensive solar radiation regions in the world [11]. Its annual total amount of radiation at Mount Qomolangma (Everest) is 8332 MJ m , only a little less than that in Poona (8583 MJ m ), India, and Cairo (8374 MJ m ), Egypt [6]. Due to the high elevations of the Tibetan Plateau, the air mass over it is only half of that over the adjacent low-level terrain.…”

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confidence: 99%

Measurements of water vapor and high clouds over the Tibetan plateau with the terra modis instrument

Gao

Yang

Guo

et al. 2003

IEEE Trans. Geosci. Remote Sensing

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Abstract-The seasonal variations of water vapor and cirrus clouds over the Tibetan Plateau are investigated using the recently available Level 3 monthly-mean atmospheric data products with a 1 1 latitude-longitude grid. The data products are derived from the multichannel imaging data acquired with the Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra Spacecraft. It is shown that the water vapor concentration over the Tibetan Plateau is normally low, whereas high clouds (mainly cirrus clouds) over the Plateau occur quite frequently. On an annual scale, the water vapor concentration reaches its maximum in July and its minimum in January. During the summer season, the southeastern part of Tibetan Plateau, which can be affected by moistures originating from the Bay of Bengal and southeastern Asia, is slightly moister than the other parts of the Plateau. This observation is in agreement with the previous surface meteorological measurements by Chinese scientists from the 1950s to mid-1970s. The mean high-cloud reflectance over the Plateau reaches its maximum in April and minimum in November. This feature of high clouds over the Plateau has not been reported previously. The special channel centered at 1.375-m on the MODIS instrument has allowed the observation. We present a plausible mechanism to explain the seasonal variations of high clouds over the Plateau. We expect that the water vapor and high-cloud measurements with MODIS can be used to improve the model initialization and validation for climate models involving the Tibetan Plateau and the nearby regions in Asia.

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Some Aspects of Recent Research on the Qinghai-Xizang Plateau Meteorology

Cited by 59 publications

References 0 publications

Role of Warming over the Tibetan Plateau in Early Onset of the Summer Monsoon over the Bay of Bengal and the South China Sea

Role of Warming over the Tibetan Plateau in Early Onset of the Summer Monsoon over the Bay of Bengal and the South China Sea

The spatially heterogeneous distribution of precipitation of the Anduo area, Tibetan Plateau, in summer 1998

Measurements of water vapor and high clouds over the Tibetan plateau with the terra modis instrument

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