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Impacts of land use/cover change on spatial patterns of summer precipitation at decadal scale over eastern China

文献类型：期刊论文

作者Wang, Qi1,2,3,4; Yan, Mi1,2,3,4,5,6; Liu, Jian1,2,3,4,5,7; Ning, Liang1,2,3,4,5,6,8
刊名INTERNATIONAL JOURNAL OF CLIMATOLOGY
出版日期2020-11-25
页码13
关键词decadal variation eastern China LUCC spatial pattern summer precipitation
ISSN号0899-8418
DOI10.1002/joc.6939
通讯作者Yan, Mi(myan@njnu.edu.cn)
英文摘要The impacts and corresponding mechanisms of land use/cover change (LUCC), mainly crops and pasture, on the spatial patterns of summer precipitation over eastern China at the decadal timescale during the last millennium are investigated, using a set of land use/cover sensitivity experiments from the Community Earth System Model (CESM) Last Millennium Ensemble (LME) archive. Two leading modes of summer precipitation over eastern China at decadal scale before (with slight LUCC) and after (with drastic LUCC) 1750 AD are compared. The results show that the LUCC plays an important role in modulating the spatial patterns of summer precipitation over eastern China at decadal scale. Before 1750 AD, the first leading mode exhibits a meridional dipole pattern, while the second leading mode exhibits a meridional tripole pattern. After 1750 AD, the order of the spatial patterns switches, that is, the tripole pattern as the first leading mode and the dipole pattern as the second leading mode. During both periods, the "dry north-wet south" dipole pattern is associated with an anomalous "A-C" (anticyclone-cyclone) low-level circulation pattern and the related water vapour divergence-convergence pattern from north to south over the eastern part of East Asia, whereas the tripole pattern corresponds to an anomalous "A-C-A" (anticyclone-cyclone-anticyclone) circulation pattern along with the corresponding tripole pattern of water vapour divergence/convergence. The regressions of sea surface temperature (SST) during boreal winter resemble obvious Pacific decadal oscillation (PDO) or Atlantic multi-decadal oscillation (AMO) modes. In addition, the AMO index displays a decreasing trend during the last millennium under the LUCC forcing, while the PDO index does not show an obvious changing trend. The possibility of coupled PDO-AMO anti-phase (in-phase) increases (decreases) after 1750 AD, leading to the increased (decreased) possibility of the tripole (dipole) pattern in eastern China. Our findings confirm the necessity of including LUCC as an important forcing factor in predictions of future climate changes, especially at the regional scale and also at longer timescales.
WOS关键词INTERDECADAL VARIABILITY ; GLOBAL PRECIPITATION ; REGIONAL CLIMATE ; COVER CHANGE ; MONSOON ; RAINFALL ; FORCINGS
资助项目National Key Research and Development Program of China[2016YFA0600401] ; National Natural Science Foundation of China[41671197] ; National Natural Science Foundation of China[41971021] ; National Natural Science Foundation of China[41971108] ; Open Funds of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment[CASSKLLQG1820SKLLQG1930] ; Priority Academic Development Program of Jiangsu Higher Education Institutions[164320H116]
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000592178300001
出版者WILEY
资助机构National Key Research and Development Program of China ; National Natural Science Foundation of China ; Open Funds of State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment ; Priority Academic Development Program of Jiangsu Higher Education Institutions
源URL[http://ir.ieecas.cn/handle/361006/15562]  
专题地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
通讯作者Yan, Mi
作者单位1.Nanjing Normal Univ, Key Lab Virtual Geog Environm, Minist Educ, Nanjing, Peoples R China
2.Nanjing Normal Univ, State Key Lab Cultivat Base Geog Environm Evolut, Nanjing, Peoples R China
3.Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Nanjing, Peoples R China
4.Nanjing Normal Univ, Sch Geog, Nanjing, Peoples R China
5.Qingdao Natl Lab Marine Sci & Technol, Open Studio Simulat Ocean Climate Isotope, Qingdao, Peoples R China
6.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian, Peoples R China
7.Nanjing Normal Univ, Sch Math Sci, Jiangsu Prov Key Lab Numer Simulat Large Scale Co, Nanjing, Peoples R China
8.Univ Massachusetts, Dept Geosci, Climate Syst Res Ctr, Amherst, MA USA
推荐引用方式
GB/T 7714		 Wang, Qi,Yan, Mi,Liu, Jian,et al. Impacts of land use/cover change on spatial patterns of summer precipitation at decadal scale over eastern China[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2020:13.
APA Wang, Qi,Yan, Mi,Liu, Jian,&Ning, Liang.(2020).Impacts of land use/cover change on spatial patterns of summer precipitation at decadal scale over eastern China.INTERNATIONAL JOURNAL OF CLIMATOLOGY,13.
MLA Wang, Qi,et al."Impacts of land use/cover change on spatial patterns of summer precipitation at decadal scale over eastern China".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2020):13.

入库方式： OAI收割

来源：地球环境研究所

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