globalchange  > 气候减缓与适应
DOI: 10.1016/j.quascirev.2018.05.029
Scopus记录号: 2-s2.0-85047635765
论文题名:
A multi-model analysis of moisture changes during the last glacial maximum
作者: Liu S.; Jiang D.; Lang X.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 191
起始页码: 363
结束页码: 377
语种: 英语
英文关键词: Global ; Last glacial maximum ; Paleoclimate modelling ; Pleistocene ; Terrestrial moisture
Scopus关键词: Glacial geology ; Wetting ; Associated mechanism ; Global ; Last Glacial Maximum ; Multi-Model Simulations ; Paleoclimate modelling ; Pleistocene ; Potential evapotranspiration ; Southeastern Africa ; Moisture ; aridity ; climate modeling ; global climate ; Last Glacial Maximum ; moisture ; paleoclimate ; Pleistocene ; potential evapotranspiration ; precipitation (climatology) ; Africa ; Andes ; Australia ; Brazil ; Central America ; Iberian Peninsula ; North America ; South America ; Southeast Asia
英文摘要: This study investigates terrestrial moisture changes and associated mechanisms during the last glacial maximum (LGM; approximately 21,000 calendar years ago) using multi-model simulations from the Paleoclimate Modelling Intercomparison Project phase 3 (PMIP3). Considering that terrestrial moisture is not determined solely by precipitation, an aridity index (AI) is employed for measuring the terrestrial moisture by combining the effects of both precipitation and potential evapotranspiration (PET), where the latter represents atmospheric water demand and is greatly decreased mainly by the intense cooling during the LGM. Compared to the preindustrial period, the magnitude of global mean terrestrial moisture change is small, as the wetness brought by decreased PET counteracts the dryness induced by decreased precipitation. Regionally, the moisture changes depend on the different combinations of changes in precipitation and PET: (i) drying occurs where precipitation deceases and PET hardly changes, such as the northern tropical Americas and Southeast Asia; (ii) wetting is found in regions with precipitation increases and PET decreases (e.g., northwestern Africa and the central Andes), and their contributions are comparable; (iii) in particular, wetting can also occur in regions of decreased precipitation if a sufficient decrease in PET also occurs (i.e., southeastern North America and the northern and southern parts of eastern Asia), with the latter wetting effect reversing the former drying effect. The multi-model median field is consistent with available paleo-records in southern North America, the northern tropical Americas, the Andes, northwestern Africa, the southern Iberian Peninsula, southwestern Africa, the central part of eastern Asia, and Java but disagrees with proxies in Australia, central Brazil, southeastern Africa, the northern Iberian Peninsula, and the southern part of eastern Asia. © 2018 Elsevier Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112174
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, 100101, China; Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing, 210044, China; University of Chinese Academy of Sciences, Beijing, 100049, China

Recommended Citation:
Liu S.,Jiang D.,Lang X.. A multi-model analysis of moisture changes during the last glacial maximum[J]. Quaternary Science Reviews,2018-01-01,191
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Liu S.]'s Articles
[Jiang D.]'s Articles
[Lang X.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Liu S.]'s Articles
[Jiang D.]'s Articles
[Lang X.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Liu S.]‘s Articles
[Jiang D.]‘s Articles
[Lang X.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.