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DOI10.1175/JCLI-D-17-0763.1
Comparison of Moisture Transport between Siberia and Northeast Asia on Annual and Interannual Time Scales
Piao, Jinling1,2; Chen, Wen1,2; Zhang, Qiong3,4; Hu, Peng1,2
2018-09-01
发表期刊JOURNAL OF CLIMATE
ISSN0894-8755
EISSN1520-0442
出版年2018
卷号31期号:18页码:7645-7660
文章类型Article
语种英语
国家Peoples R China; Sweden
英文摘要

The moisture supplies over Siberia and Northeast Asia are investigated by comparing their similarities and differences, enlightened by the seesaw pattern in their summer precipitation. Based on the rotated empirical orthogonal functions in the 3-month standardized precipitation evapotranspiration index (SPEI_03), Siberia and Northeast Asia are defined as the regions within 55 degrees-70 degrees N, 80 degrees-115 degrees E and 40 degrees-55 degrees N, 90 degrees-115 degrees E, respectively. Our results show that over both regions, evaporation contributes the most to the precipitation amount at the annual time scale, and moisture convergence contributes the most on the interannual time scale. For moisture convergence, both the stationary and transient terms are subject to impacts of the midlatitude westerlies. For the annual cycle, the net moisture supply over both Siberia and Northeast Asia is closely associated with both stationary and transient moisture transport. However, on the interannual time scale, the net moisture convergence is closely related to the stationary term only. The examination of the boundary moisture transport shows that in addition to the zonal component, the meridional stationary moisture transport plays a key role in the net moisture convergence. The transient moisture transport mainly depends on moisture transport through the western and southern boundaries, with a comparable magnitude to that of the stationary one, further confirming the importance of the stationary and transient terms on the moisture supply for the annual cycle. In addition, the circulations responsible for moisture transport anomalies indicate that the stationary moisture circulation is the key factor for the moisture supply anomalies over both Siberia and Northeast Asia, with limited impacts from the transient moisture circulation.


英文关键词Climate variability Evaporation Moisture moisture budget Water vapor Annual variations Interannual variability
领域气候变化
收录类别SCI-E
WOS记录号WOS:000441124600001
WOS关键词WATER-VAPOR TRANSPORT ; INNER-MONGOLIA ; SUMMER RAINFALL ; EURASIAN CONTINENT ; GAUGE OBSERVATIONS ; SOIL-MOISTURE ; LAND-SURFACE ; SNOW COVER ; EL-NINO ; PRECIPITATION
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/20153
专题气候变化
作者单位1.Chinese Acad Sci, Ctr Monsoon Syst Res, Inst Atmospher Phys, Beijing, Peoples R China;
2.Univ Chinese Acad Sci, Sch Earth Sci, Beijing, Peoples R China;
3.Stockholm Univ, Dept Phys Geog, Stockholm, Sweden;
4.Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden
推荐引用方式
GB/T 7714
Piao, Jinling,Chen, Wen,Zhang, Qiong,et al. Comparison of Moisture Transport between Siberia and Northeast Asia on Annual and Interannual Time Scales[J]. JOURNAL OF CLIMATE,2018,31(18):7645-7660.
APA Piao, Jinling,Chen, Wen,Zhang, Qiong,&Hu, Peng.(2018).Comparison of Moisture Transport between Siberia and Northeast Asia on Annual and Interannual Time Scales.JOURNAL OF CLIMATE,31(18),7645-7660.
MLA Piao, Jinling,et al."Comparison of Moisture Transport between Siberia and Northeast Asia on Annual and Interannual Time Scales".JOURNAL OF CLIMATE 31.18(2018):7645-7660.
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