The influence of boreal spring Arctic Oscillation on the subsequent winter ENSO in CMIP5 models

Chen, Shangfeng; Chen, Wen; Yu, Bin

doi:10.1007/s00382-016-3243-z

Cited by 32 publications

(32 citation statements)

References 77 publications

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“…The spring AO‐related anomalously atmospheric circulations influencing ENSO has become a strong regime after 1970s, and the November AO phase had a positive correlation with Pacific SST anomalies (Chen et al ., , ). The significant AO‐ENSO connection outbroke through the positive Bjerknes feedback in subsequent winter (Chen et al ., ). In the light of our results shown in Figure , a significantly negative center was observed over mid‐high latitudes of Northern Hemisphere.…”

Section: Discussionmentioning

confidence: 97%

Influence of mature El Niño‐Southern Oscillation phase on seasonal precipitation and streamflow in the Yangtze River Basin, China

Jia

Wang

Shao

et al. 2019

Intl Journal of Climatology

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As one of the most influential oceanic and atmospheric oscillations in the Earth system, El Niño‐Southern Oscillation (ENSO) has modulated numerous geophysical processes. This is particularly true for the Yangtze River Basin (YRB), which is vulnerable to Asian Monsoon and faces serious hydrological hazards. In this study, the co‐variability between lag–lead precipitation and sea surface temperature anomalies was evaluated utilizing singular value decomposition (SVD) method. Moreover, certain teleconnections between ENSO and streamflow were identified by wavelet methods. In addition, the contribution of related atmospheric variables was revealed by composite analysis. Results indicate that there are strong associations in lag–lead seasons between the wet condition (dry condition) and September–November (December–February) mature ENSO phase. Significant common power and coherence signals between the ENSO indices and the streamflow occur in the 4–8, 8–16 and 16–32 seasonal scales. Meanwhile, the activity cycle of the ENSO indices ahead of streamflow increases from the mid‐lower reaches to the source region. In addition, the Western Pacific Subtropical High is strengthened during the mature ENSO phase. Anomalous sinking motions and divergent water vapour flux occupy the YRB, reducing the precipitation and leading to the dry condition in the source region until the following March–May. On the other hand, ascending movements and abundant water vapour flux coming from northern Pacific, equatorial western Pacific and the Bay of Bengal result in the wet condition in the mid‐lower reaches.

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Section: Discussionmentioning

confidence: 97%

Influence of mature El Niño‐Southern Oscillation phase on seasonal precipitation and streamflow in the Yangtze River Basin, China

Jia

Wang

Shao

et al. 2019

Intl Journal of Climatology

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“…Reply: Thank you for your comment very much. Because EOF analysis is used here to capture the pattern of PIOAM rather than composite analysis (Liu et al 2013;Zhang and Sun 2014) or regression analysis (Jha et al 2014;Chen et al 2017;Chen et al 2019), statistical significance test cannot be performed in Figure 1, which can also be seen in other studies (i.e. the North Pacific Oscillation in Wang et al (2019), the Pacific C4 Decadal Oscillation in Lin et al (2018), the interdecadal variability of SST in Lyu et al (2016), the IOD and ENSO in Weller and Cai (2013)).…”

Section: L138 What Depth Does Heat Refer To?mentioning

confidence: 98%

To the respected Ian G. Watterson

Yang¹

2019

Preprint

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We thank the reviewer for the constructive comments that help improve the presentation of the original manuscript. Below are our point-to-point replies to the reviewer's comments (original comments are in italics): ***Please see the PDF version in the Supplement.General comments: This is an interesting analysis of the tropical ocean surface temperatures from CMIP5 and HadISST. A 'mode' derived from the tropical Pacific-Indian domain has been denoted the PIOAM by some previous authors, mostly in Chinese journals. It seems worthwhile introducing the approach to this European one. Here, it is shown that this Pacific-Indian mode (presumably obtained by principal component C1 OSD Interactive commentPrinter-friendly version Discussion paper

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“…Figure 1(a)-(c) display the normalized time series of Over the Pacific, one of the most dramatic features of sea level pressure (SLP) is the Southern Oscillation (SO) (Rasmusson and Carpenter 1982), together with El Niño/ La Niña events, collectively known as El Niño-Southern Oscillation (ENSO) (Zebiak and Cane 1987). Previous studies have reported that ENSO is related to the internal cycle of feedback within the tropical Pacific ocean-atmosphere climatic systems (Chen, Chen, and Yu 2017;Chen et al 2016;Chen and Zhou 2012;Graham and White 1988;McCreary Jr 1983;Nuzhdina 2002). Many recent studies have revealed that the extratropical forcing associated with large-scale atmospheric circulation plays very important roles in the formation of ENSO (Chen et al 2013Chen 2014, 2015).…”

Section: Different Variability Of E In From Ssn and F107mentioning

confidence: 99%

Influence of solar wind energy flux on the interannual variability of ENSO in the subsequent year

Wang

Gao

et al. 2018

Atmospheric and Oceanic Science Letters

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Previous studies have tended to adopt the quasi-decadal variability of the solar cycle (e.g. sunspot number (SSN) or solar radio flux at 10.7 cm (F10.7) to investigate the effect of solar activity on El Niño-Southern Oscillation (ENSO). As one of the major terrestrial energy sources, the effect of solar wind energy flux in Earth's magnetosphere (E in ) on the climate has not drawn much attention, due to the big challenge associated with its quantitative estimation. Based on a new E in index estimated by three-dimensional magnetohydrodynamic simulations from a previous study, this study reveals that E in exhibits both quasi-decadal variability (periodic 11-year) and interannual (2-4 years) variability, which has rarely before been detected by SSN and F10.7. A significant interannual relationship between the annual mean E in and subsequent early-winter ENSO is further revealed. Following high E in , the sea level pressure in the subsequent early winter shows significant positive anomalies from Asia southward to the Maritime Continent, and significant negative anomalies over the Southeast and Northeast Pacific, resembling the Southern Oscillation. Meanwhile, significant upper-level anomalous convergence and divergence winds appear over the western and eastern Pacific, which is configured with significant lower-level anomalous divergence and convergence, indicating a weakening of the Walker circulation. Consequently, notable surface easterly wind anomalies prevail over the eastern tropical Pacific, leading to El Niño-like sea surface temperature anomalies. It is suggested that better describing the processes in the solar wind-magnetosphere-ionosphere coupled system is essential to understand the solar influence on climate change.

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The influence of boreal spring Arctic Oscillation on the subsequent winter ENSO in CMIP5 models

Cited by 32 publications

References 77 publications

Influence of mature El Niño‐Southern Oscillation phase on seasonal precipitation and streamflow in the Yangtze River Basin, China

Influence of mature El Niño‐Southern Oscillation phase on seasonal precipitation and streamflow in the Yangtze River Basin, China

To the respected Ian G. Watterson

Influence of solar wind energy flux on the interannual variability of ENSO in the subsequent year

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