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| DOI | 10.5194/hess-19-4023-2015 |
| High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin | |
| Gerken, T.; Babel, W.; Herzog, M.; Fuchs, K.; Sun, F.; Ma, Y.; Foken, T.; Graf, H. -F. | |
| 通讯作者 | Gerken, T (通讯作者) |
| 发表日期 | 2015 |
| ISSN | 1027-5606 |
| EISSN | 1607-7938 |
| 起始页码 | 4023 |
| 结束页码 | 4040 |
| 卷号 | 19期号:9 |
| 英文摘要 | The Tibetan Plateau plays a significant role in atmospheric circulation and the Asian monsoon system. Turbulent surface fluxes and the evolution of boundary-layer clouds to deep and moist convection provide a feedback system that modifies the plateau's surface energy balance on scales that are currently unresolved in mesoscale models. This work analyses the land surface's role and specifically the influence of soil moisture on the triggering of convection at a cross section of the Nam Co Lake basin, 150 km north of Lhasa using a cloud-resolving atmospheric model with a fully coupled surface. The modelled turbulent fluxes and development of convection compare reasonably well with the observed weather. The simulations span Bowen ratios of 0.5 to 2.5. It is found that convective development is the strongest at intermediate soil moisture. Dry cases with soils close to the permanent wilting point are moisture limited in convective development, while convection in wet soil moisture cases is limited by cloud cover reducing incoming solar radiation and sensible heat fluxes, which has a strong impact on the surface energy balance. This study also shows that local development of convection is an important mechanism for the upward transport of water vapour, which originates from the lake basin that can then be transported to dryer regions of the plateau. Both processes demonstrate the importance of soil moisture and surface-atmosphere interactions on the energy and hydrological cycles of the Tibetan Plateau. |
| 关键词 | ENERGY-BALANCE CLOSURECO LAKE BASINNAM COLAND-SURFACECLIMATE-CHANGEWATER-VAPORPLATEAUPRECIPITATIONMONSOONRAINFALL |
| 语种 | 英语 |
| WOS研究方向 | Geology ; Water Resources |
| WOS类目 | Geosciences, Multidisciplinary ; Water Resources |
| WOS记录号 | WOS:000364327300018 |
| 来源期刊 | HYDROLOGY AND EARTH SYSTEM SCIENCES
 |
| 来源机构 | 中国科学院青藏高原研究所 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/258593 |
| 推荐引用方式 GB/T 7714 | Gerken, T.,Babel, W.,Herzog, M.,et al. High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin[J]. 中国科学院青藏高原研究所,2015,19(9). |
| APA | Gerken, T..,Babel, W..,Herzog, M..,Fuchs, K..,Sun, F..,...&Graf, H. -F..(2015).High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin.HYDROLOGY AND EARTH SYSTEM SCIENCES,19(9). |
| MLA | Gerken, T.,et al."High-resolution modelling of interactions between soil moisture and convective development in a mountain enclosed Tibetan Basin".HYDROLOGY AND EARTH SYSTEM SCIENCES 19.9(2015). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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