Interannual Meridional Displacement of the Upper-Tropospheric Westerly Jet over Western East Asia in Summer

Ling, Sining; Lu, Riyu; Líu, Hao; Yang, Y.

doi:10.1007/s00376-022-2279-8

Cited by 8 publications

(6 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The input of this data range into the P-T and LR models results in temperature ranges of −9.0 to −6.6 • C and −8.8 to −7.4 • C, respectively, so the temperature variation value is −9.0 to −6.6 • C for the Tianchi area of the Changbai Mountains during the LGM. It has been shown that the T values during the LGM in the Honshu Mountains of Japan, which are close to the Tianchi area, decreased by 7.2-7.8 • C [66], and that in the Hidaka Mountains of Japan, which have a similar latitude with the Tianchi area, decreased by 6-7 • C during the LGM [67]. Both these sets of results are comparable with this study's findings.…”

Section: Environmental Characteristics Of the Lgm In The Tianchi Areasupporting

confidence: 89%

Last Glacial Maximum Climate and Glacial Scale Affected by the Monsoon Inferred from Reconstructing the Tianchi Area, Changbai Mountains, Eastern China

Zhao,

Zhang

2024

Applied Sciences

View full text Add to dashboard Cite

There are few studies on the climate and glacial scale in the mountains east of the Qinghai–Tibet Plateau. So, we used glacial features to determine the range of the area’s paleoglaciers and the equilibrium line altitude (ELA) of theGlA modern and paleoglaciers in the Tianchi area of the Changbai Mountains. Then, the GlaRe toolbox 2015 () was used to reconstruct the surface of the paleoglaciers. The probable air temperature during the glacial advances of the LGM was calculated by applying the P-T and LR models. The results showed the following: (1) the change in ELA is 950 m in the Tianchi area of the Changbai Mountains; (2) glacial coverage in the Tianchi area of the Changbai Mountains during the LGM period was ~27.05 km2 and the glacial volume was ~9.94 km3; and (3) the mean temperature in the Tianchi area of the Changbai Mountains during the LGM was 6.6–9.0 °C lower than today’s, and was the principal factor controlling the growth of glaciers. There is a difference in the climate change in monsoon-influenced mountains during the LGM, and this difference may be related to the precipitation in the mountains.

show abstract

Section: Environmental Characteristics Of the Lgm In The Tianchi Areasupporting

confidence: 89%

Last Glacial Maximum Climate and Glacial Scale Affected by the Monsoon Inferred from Reconstructing the Tianchi Area, Changbai Mountains, Eastern China

Zhao,

Zhang

2024

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The variability of the East Asian summer monsoon system is influenced not only by the heat of the tropical western Pacific but also by the subtropical jet over Asia. The results studied by previous studies [18,19,21] demonstrated the existence of a wave train in the Figure 6. Wavelet analysis (Y-axis denotes periods, units: year; the curve on the right panel denotes the global wavelet spectrum; shading depicts power spectrum significant beyond 95% level based on the Chi-square test) of the EAP index calculated by using the definition in Huang G. [36] and 500 hPa height fields of the NCEP/NCAR reanalysis data [30] for 1961-2020.…”

Section: The Guiding Role Of Theory Of Rossby Wave Energy Dispersion ...mentioning

confidence: 69%

“…The variability of the East Asian summer monsoon system is influenced not only by the heat of the tropical western Pacific but also by the subtropical jet over Asia. The results studied by previous studies [18,19,21] demonstrated the existence of a wave train in the meridional wind variability in the upper troposphere from West Asia to East Asia. Later, Enomoto et al [37] referred to this teleconnection wave train as the "Silk Road" pattern teleconnection.…”

Section: Dynamical Influence Of the "Silk Road" Pattern Teleconnectio...mentioning

confidence: 85%

“…It is well known that the theory of Rossby wave energy dispersion [1] proposed by Duzheng Ye more than 70 years ago is one of the classical theories of atmospheric dynamics. The theory of Rossby wave energy dispersion is not only widely used in weather forecasting but also inspire the development of planetary wave dynamics, especially the study on the propagating characteristics of quasi-stationary planetary waves in two-and three-dimensional spherical atmosphere [2][3][4][5][6][7][8][9][10][11] and the teleconnection mechanism of global atmospheric circulation anomalies [12][13][14][15][16][17][18][19][20]. Under the guidance of the theory of Rossby wave energy dispersion proposed by academician Ye, the research on the dynamic processes of the variability of the East Asian monsoon system has been made in recent years.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Guiding Role of Rossby Wave Energy Dispersion Theory for Studying East Asian Monsoon System Dynamics

et al. 2023

View full text Add to dashboard Cite

This paper is written to commemorate the 10th anniversary of academician Ye Duzheng (Yeh T.C.) pass away and his great contributions to the development of atmospheric dynamics. Under the inspiration and guidance of the theory of Rossby wave energy dispersion, remarkable progresses have been made in research on planetary wave dynamics and teleconnections of atmospheric circulation anomalies. This paper aims to make a brief review of the studies on the propagating characteristics of quasi-stationary planetary waves in a three-dimensional spherical atmosphere and the dynamic processes of the interannual and interdecadal variabilities of the East Asian summer and winter monsoon systems. Especially, this paper systematically reviews the progresses of the studies on the impacts of the interannual and interdecadal variabilities of the East Asia/Pacific (EAP) pattern teleconnection wave train propagating along the meridional direction over East Asia and the “Silk Road” pattern teleconnection wave train propagating along the zonal direction within the subtropical jet from West Asia to East Asia on the East Asian summer monsoon system and the summer precipitation variability in China, under the guidance of the theory of Rossby wave energy dispersion. Moreover, this paper reviews the dynamic processes of the impact of the interannual and interdecadal oscillations of the propagating waveguides of boreal quasi-stationary planetary waves on the variability of the East Asian winter monsoon system.

show abstract

“…As a key component of East Asian Summer Monsoon 2 , 34 , the EAJ plays a crucial role in climate variability 10 , 35 . A prevailing notion is that EAJ variability mainly arises from its shifting in latitude, with pulsing in strength as the secondary feature 36 . Nevertheless, pulsing with enhanced amplitude becomes predominant since the late-1990s (Fig.…”

Section: Resultsmentioning

confidence: 99%

Atlantic origin of the increasing Asian westerly jet interannual variability

Lin,

Hu,

Wang

et al. 2024

Nat Commun

View full text Add to dashboard Cite

The summer Eurasian westerly jet is reported to become weaker and wavier, thus promoting the frequent weather extremes. However, the primary driver of the changing jet stream remains in debate, mainly due to the regionality and seasonality of the Eurasian jet. Here we report a sharp increase, by approximately 140%, in the interannual variability of the summertime East Asian jet (EAJ) since the end of twentieth century. Such interdecadal change induces considerable changes in the large-scale circulation pattern across Eurasia, and consequently weather and climate extremes including heatwaves, droughts, and Asian monsoonal rainfall regime shifts. The trigger mainly emerges from preceding February North Atlantic seesaw called Scandinavian pattern (contributing to 81.1 ± 2.9% of the enhanced EAJ variability), which harnesses the “cross-seasonal-coupled oceanic-atmospheric bridge” to exert a delayed impact on EAJ and thus aids relevant predictions five months in advance. However, projections from state-of-the-art models with prescribed anthropogenic forcing exhibit no similar circulation changes. This sheds light on that, at the interannual timescale, a substantial portion of recently increasing variability in the East Asian sector of the Eurasian westerly jet arises from unforced natural variability.

show abstract

Interannual Meridional Displacement of the Upper-Tropospheric Westerly Jet over Western East Asia in Summer

Cited by 8 publications

References 43 publications

Last Glacial Maximum Climate and Glacial Scale Affected by the Monsoon Inferred from Reconstructing the Tianchi Area, Changbai Mountains, Eastern China

Last Glacial Maximum Climate and Glacial Scale Affected by the Monsoon Inferred from Reconstructing the Tianchi Area, Changbai Mountains, Eastern China

The Guiding Role of Rossby Wave Energy Dispersion Theory for Studying East Asian Monsoon System Dynamics

Atlantic origin of the increasing Asian westerly jet interannual variability

Contact Info

Product

Resources

About