Global terrestrial stilling: does Earth's greening play a role ? | |
Wood, EF (Wood, Eric F.)2; Liu, MF (Liu, Maofeng)2; Zeng, ZZ (Zeng, Zhenzhong)1,2; Piao, SL (Piao, Shilong)1,3; Li, LZX (Li, Laurent Z. X.)4; Ciais, P (Ciais, Philippe)5; Li, Y (Li, Yue)1; Cai, XT (Cai, Xitian)6; Yang, L (Yang, Long)2 | |
刊名 | ENVIRONMENTAL RESEARCH LETTERS |
2018-12-01 | |
卷号 | 13期号:12页码:文献号 124013 |
关键词 | Wind-speed Land-surface Impact Temperature Trends Circulation Expansion Patterns Pacific |
ISSN号 | 1748-9326 |
DOI | 10.1088/1748-9326/aaea84 |
英文摘要 | Previous studies have documented that surface wind speed (u) has been increasing over the ocean but decreasing over land for the past several decades. The decreasing u at the surface over land has been referred to as terrestrial stilling. A plausible hypothesis for terrestrial stilling is an increase in surface roughness associated with changes in land surface (e.g. enhanced vegetation growth, landscape fragmentation or urbanization). One of the most widespread land surface changes is enhanced vegetation leaf area index (LAI) known as greening, particularly over the middle to high latitudes of the Northern Hemisphere where strong stilling is observed from weather station data. In this study, we examine the hypothesis that enhanced vegetation LAI is a key driver of global terrestrial stilling. We first characterized the trend in u over the ocean using long-term satellite altimeter measurements, and the trend in u over land using continuous wind records from 4305 in situ meteorological stations. We then performed initial condition ensemble Atmospheric Model Intercomparison Project-type simulations using two state-of-the-art Earth system models (IPSL-CM and CESM) to isolate the response of u to the historical increase in LAI (representing the greening) for the period 1982-2011. Both models, forced with observed sea surface temperature and sea ice and with LAI from satellite observation, captured the observed strengthening of Pacific trade winds and Southern Ocean westerly winds. However, these simulations did not reproduce the weakening of surface winds over land as significantly as it appears in the observations (-0.006 m s(-1) versus -0.198 m s(-1) during 1982-2011), indicating that enhanced LAI (greening) is not a dominant driver for terrestrial stilling. |
学科主题 | 生态学 |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000452046500001 |
内容类型 | 期刊论文 |
源URL | [http://ir.itpcas.ac.cn/handle/131C11/8491] |
专题 | 青藏高原研究所_图书馆 |
通讯作者 | Piao, SL (Piao, Shilong) |
作者单位 | 1.Peking Univ, Coll Urban & Environm Sci, Sinofrench Inst Earth Syst Sci, Beijing 100871, Peoples R China; 2.Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08540 USA; 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China; 4.Univ Pierre & Marie Curie Paris 6, CNRS, Lab Meteorol Dynam, F-75252 Paris, France; 5.CEA, CNRSUVSQ, UMR1572, Lab Sci Climat & Environm, F-91191 Gif Sur Yvette, France; 6.Lawrence Berkeley Natl Lab, Climate & Ecosyst Sci Div, Berkeley, CA 94720 USA. |
推荐引用方式 GB/T 7714 | Wood, EF ,Liu, MF ,Zeng, ZZ ,et al. Global terrestrial stilling: does Earth's greening play a role ?[J]. ENVIRONMENTAL RESEARCH LETTERS,2018,13(12):文献号 124013. |
APA | Wood, EF .,Liu, MF .,Zeng, ZZ .,Piao, SL .,Li, LZX .,...&Yang, L .(2018).Global terrestrial stilling: does Earth's greening play a role ?.ENVIRONMENTAL RESEARCH LETTERS,13(12),文献号 124013. |
MLA | Wood, EF ,et al."Global terrestrial stilling: does Earth's greening play a role ?".ENVIRONMENTAL RESEARCH LETTERS 13.12(2018):文献号 124013. |
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