Impact of summer monsoon on the elevation-dependence of meteorological variables in the south of central Himalaya | |
Tian, LD (Tian, Lide)2,5; Salerno, F (Salerno, Franco)6; Yang, K (Yang, Kun)1,2,3; Guyennon, N (Guyennon, Nicolas)4; Ouyang, L (Ouyang, Lin)3,5; Tartari, G (Tartari, Gianni)6 | |
刊名 | INTERNATIONAL JOURNAL OF CLIMATOLOGY
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2018-03-30 | |
卷号 | 38期号:4页码:1748-1759 |
关键词 | Sagarmatha National-park Spatial-patterns Tibetan Plateau Precipitation Nepal Temperature Glaciers Balance Rainfall Project |
ISSN号 | 0899-8418 |
DOI | 10.1002/joc.5293 |
英文摘要 | The South Asian summer monsoon brings abundant precipitation and associated latent heat release to the south of central Himalaya, and alters hydrothermal conditions of this region. This study explored the impact of South Asian summer monsoon on the elevation-dependence of meteorological variables along the south slope of Mt. Everest in the central Himalaya, which is crucial to modelling the glacio-hydrological processes in this elevated region. The data were collected at five stations deployed at 2660-5600 m above sea level (asl) along the slope during 2007-2011. Major findings are the following: (1) The amount of precipitation during the monsoon season usually decreases with elevation but it is relatively uniform between 3600 and 5000 m asl. This uniform profile may be attributed to the monsoon-terrain-land interactions, particularly to the retard effect of glacier cooling on daytime upvalley wind; (2) Cloud shielding effects cause lower solar radiation and higher downward longwave radiation in the monsoon than in the other seasons. In particular, higher elevations have more clouds in the afternoon, resulting in an abnormal elevation-dependence of solar radiation (i.e. higher elevations receive less solar radiation); (3) Strong daytime upvalley wind and moist convection homogenizes the vertical distributions of air mass along the slope, causing a constant lapse rate of both surface air temperature and dew-point temperature (representing humidity) during typical monsoon months, but this phenomenon is not found in the other seasons. These findings provide critical guidance for extrapolating the meteorological variables from lower to higher elevations in this region. |
学科主题 | 地理学 |
WOS研究方向 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | WILEY |
WOS记录号 | WOS:000427011700011 |
内容类型 | 期刊论文 |
源URL | [http://ir.itpcas.ac.cn/handle/131C11/8698] ![]() |
专题 | 青藏高原研究所_图书馆 |
通讯作者 | Yang, K (Yang, Kun) |
作者单位 | 1.Tsinghua Univ, Dept Earth Syst Sci, Key Lab Earth Syst Modeling, Minist Educ, Beijing, Peoples R China; 2.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China; 3.Univ Chinese Acad Sci, Beijing, Peoples R China; 4.CNR, Water Res Inst IRSA CNR, Rome, Italy; 5.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface P, Beijing, Peoples R China; 6.CNR, Water Res Inst IRSA CNR, Brugherio, Italy. |
推荐引用方式 GB/T 7714 | Tian, LD ,Salerno, F ,Yang, K ,et al. Impact of summer monsoon on the elevation-dependence of meteorological variables in the south of central Himalaya[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2018,38(4):1748-1759. |
APA | Tian, LD ,Salerno, F ,Yang, K ,Guyennon, N ,Ouyang, L ,&Tartari, G .(2018).Impact of summer monsoon on the elevation-dependence of meteorological variables in the south of central Himalaya.INTERNATIONAL JOURNAL OF CLIMATOLOGY,38(4),1748-1759. |
MLA | Tian, LD ,et al."Impact of summer monsoon on the elevation-dependence of meteorological variables in the south of central Himalaya".INTERNATIONAL JOURNAL OF CLIMATOLOGY 38.4(2018):1748-1759. |
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