Interannual impact of the Victoria mode on the winter-spring surface air temperature over Eurasia and North America

被引:2
|
作者
Ji, Kai [1 ,2 ]
Ding, Ruiqiang [1 ]
机构
[1] Beijing Normal Univ, Chinese Minist Educ, Key Lab Environm Change & Nat Disasters, Beijing, Peoples R China
[2] China Univ Geosci, Sch Environm Studies, Dept Atmospher Sci, Wuhan, Peoples R China
基金
中国国家自然科学基金;
关键词
INTERDECADAL VARIABILITY; ATMOSPHERIC CIRCULATION; GEOPOTENTIAL HEIGHT; PACIFIC; ATLANTIC; TELECONNECTIONS; OSCILLATION; OCEAN; PRECIPITATION; MONSOON;
D O I
10.1038/s41612-023-00440-0
中图分类号
P4 [大气科学(气象学)];
学科分类号
0706 ; 070601 ;
摘要
Variations of the Victoria mode (VM) have received considerable attention due to their profound impacts on the climate systems in the pan-North Pacific. However, works about its impact on surface air temperature (SAT) variability over Eurasia and North America, which may be responsible for extreme weather and climate events, are limited. Here we show a significant positive and negative relationship between the VM and the winter-spring SAT anomalies over mid-to-high-latitude east-central Eurasia (MEE) and eastern North America (ENA), respectively. A local energy budget analysis shows that the contribution of the surface heat fluxes associated with the VM to the SAT anomalies is confined mainly to MEE and may not explain the formation of SAT anomalies over ENA. Furthermore, VM-induced anomalous atmospheric circulations play a crucial role in the formation of notable SAT anomalies. The positive (negative) VM is linked to negative (positive) precipitation and upper-tropospheric wind convergence (divergence) anomalies over the western North Pacific, which contribute to positive (negative) Rossby wave source (RWS) anomalies near the East Asian westerly jet core. These RWS anomalies act as disturbances that propagate eastward, exciting a wave train-like pattern. The high-level positive and negative geopotential height anomalies of the Rossby wave dominate MEE and ENA, respectively, leading to the variation in SAT anomalies. These results could advance our understanding of the relationship between the VM and SAT over the Northern Hemisphere and inspire us to pay more attention to the VM climate impacts.
引用
收藏
页数:9
相关论文
共 50 条
  • [1] Interannual impact of the Victoria mode on the winter-spring surface air temperature over Eurasia and North America
    Kai Ji
    Ruiqiang Ding
    [J]. npj Climate and Atmospheric Science, 6
  • [2] Impact of the Winter North Pacific Oscillation on the Surface Air Temperature over Eurasia and North America: Sensitivity to the Index Definition
    Shangfeng CHEN
    Linye SONG
    [J]. Advances in Atmospheric Sciences, 2018, 35 (06) : 702 - 712
  • [3] Impact of the Winter North Pacific Oscillation on the Surface Air Temperature over Eurasia and North America: Sensitivity to the Index Definition
    Shangfeng Chen
    Linye Song
    [J]. Advances in Atmospheric Sciences, 2018, 35 : 702 - 712
  • [4] Impact of the Winter North Pacific Oscillation on the Surface Air Temperature over Eurasia and North America: Sensitivity to the Index Definition
    Chen, Shangfeng
    Song, Linye
    [J]. ADVANCES IN ATMOSPHERIC SCIENCES, 2018, 35 (06) : 702 - 712
  • [5] Climate Model Assessment of Changes in Winter-Spring Streamflow Timing over North America
    Kam, Jonghun
    Knutson, Thomas R.
    Milly, P. C. D.
    [J]. JOURNAL OF CLIMATE, 2018, 31 (14) : 5581 - 5593
  • [6] Nonstationary modulation of the preceding spring North Pacific Victoria mode on the connection of central North America winter temperature with ENSO
    Kai Ji
    Ruiqiang Ding
    Jiayu Zheng
    Qifeng Qian
    [J]. Climate Dynamics, 2024, 62 : 37 - 53
  • [7] Nonstationary modulation of the preceding spring North Pacific Victoria mode on the connection of central North America winter temperature with ENSO
    Ji, Kai
    Ding, Ruiqiang
    Zheng, Jiayu
    Qian, Qifeng
    [J]. CLIMATE DYNAMICS, 2024, 62 (01) : 37 - 53
  • [8] Interannual Fluctuations of Surface Air Temperature over North America and Its Relationship to the North Pacific SST Anomaly
    吴仁广
    陈烈庭
    [J]. Advances in Atmospheric Sciences, 1995, (01) : 20 - 28
  • [9] The interannual impact of the North Atlantic sea surface temperature on the surface air temperature over southern China in February
    Zhang, Chengyang
    Zheng, Zhihai
    Qiao, Shaobo
    Lai, Sheng
    He, Liyang
    Chen, Sirong
    Lu, Hong
    He, Hui
    Qin, Weijian
    Yang, Song
    [J]. CLIMATE DYNAMICS, 2023, 61 (9-10) : 4849 - 4865
  • [10] The interannual impact of the North Atlantic sea surface temperature on the surface air temperature over southern China in February
    Chengyang Zhang
    Zhihai Zheng
    Shaobo Qiao
    Sheng Lai
    Liyang He
    Sirong Chen
    Hong Lu
    Hui He
    Weijian Qin
    Song Yang
    [J]. Climate Dynamics, 2023, 61 : 4849 - 4865