Knowledge Management System Of Institute of Earth Environment, CAS
Impacts of land use/cover change on spatial patterns of summer precipitation at decadal scale over eastern China | |
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 | |
通讯作者 | Yan, Mi(myan@njnu.edu.cn) |
2020-11-25 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
页码 | 13 |
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. |
关键词 | decadal variation eastern China LUCC spatial pattern summer precipitation |
DOI | 10.1002/joc.6939 |
关键词[WOS] | INTERDECADAL VARIABILITY ; GLOBAL PRECIPITATION ; REGIONAL CLIMATE ; COVER CHANGE ; MONSOON ; RAINFALL ; FORCINGS |
收录类别 | SCI ; SCI |
语种 | 英语 |
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 |
项目资助者 | 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 |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS记录号 | WOS:000592178300001 |
出版者 | WILEY |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/15563 |
专题 | 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. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论