Remote impact of North Atlantic sea surface temperature on rainfall in southwestern China during boreal spring

Li, Gang; Chen, Jiepeng; Wang, Xin; Luo, Xia; Yang, Daoyong; Zhou, Wen; Ya, Tan; Yan, Haibo

doi:10.1007/s00382-017-3625-x

Cited by 37 publications

(38 citation statements)

References 38 publications

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“…Numerical simulations are performed to further demonstrate the impact of northern tropical Atlantic SST warming on NEC spring precipitation variability based on the National Center for Atmospheric Research (NCAR) Community Atmospheric Model version 5.3 (CAM5.3). The CAM5 model is capable of reproducing East Asian climate variability in response to SST anomalies (e.g., Ao & Sun, 2016; G. Li et al, 2018; Sun et al, 2016; Yu & Sun, 2018; Zhang & Sun, 2018). A detailed description of CAM5.3 can be found at http://www.cesm.ucar.edu/models/cesm1.2.2/cam/docs/description/cam5_desc.pdf.…”

Section: Data Methods and Modelmentioning

confidence: 99%

“…The North Atlantic is located upstream of East Asia, and anomalous North Atlantic SST plays an important role in East Asian climate variability by triggering zonal Rossby waves that propagates downstream to East Asia (e.g., G. Li et al, 2018; Sun, 2014; Wang et al, 2011; Wu et al, 2011; Zhou et al, 2013). Recent evidence has also suggested that the summer SST anomalies over the northern tropical Atlantic (NTA) significantly contribute to the variability in the western Pacific subtropical high by modulating zonal overturning circulation across the Pacific‐Atlantic Ocean (Chang et al, 2016; Hong et al, 2014; Zuo et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

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Increased Role of Late Winter Sea Surface Temperature Variability Over Northern Tropical Atlantic in Spring Precipitation Prediction Over Northeast China

Zhang

Sun

2020

JGR Atmospheres

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The present study investigates the relationship between the winter North Atlantic sea surface temperature (SST) and spring Northeast China (NEC) precipitation during 1961-2016 from a seasonal prediction aspect. The results show that the February SST variability over the northern tropical Atlantic (NTA) has an enhanced relationship with the spring NEC precipitation after the late 1970s, consequently providing a prediction source for the spring NEC precipitation during the period. Such an interdecadal change in the relationship between February NTA SST and spring NEC precipitation is associated with the interdecadal change in the tropical SST around the late 1970s. The NTA SST exhibits good persistence from late winter to spring. Under the warmer SST background after the late 1970s, the NTA SST is related to more active tropical convection and diabatic heating anomalies in spring, consequently leading to an enhanced connection between the NTA SST and atmospheric circulations over the middle-to-high latitude North Atlantic during the period. Anomalous atmospheric circulations over the North Atlantic can further excite Rossby wave train that propagates eastward to East Asia, consequently influencing the moisture and dynamic conditions over NEC. Through the aforementioned physical processes, the NTA SST variability can lead to anomalous precipitation over NEC. The physical processes linking the NTA SST anomalies and spring NEC precipitation are further confirmed by an atmospheric general circulation model experiment forced with idealized NTA warming. The 1-month lead information of the NTA SST provides a prediction source for spring precipitation over NEC, which has potential usage in operational forecasting.

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Section: Data Methods and Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Increased Role of Late Winter Sea Surface Temperature Variability Over Northern Tropical Atlantic in Spring Precipitation Prediction Over Northeast China

Zhang

Sun

2020

JGR Atmospheres

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“…For example, based on numerical modellings, Zhang et al [41] concluded that SWC anomalous precipitation was closely related to location and intensity of the central Pacific El Niño event. Li et al [56] suggested that North Atlantic SST can significantly and positively impact on boreal spring precipitation over SWC via a North Atlantic-western Russia-western Tibetan Plateau-SWC teleconnection wave train. Also, external forcings (e.g., greenhouse gases, various aerosols, and solar activities) can influence regional precipitation by a series of complex physical processes and mechanisms [57][58][59].…”

Section: Possible Causes Of Changed Precipitationmentioning

confidence: 99%

Spatiotemporal Differences in Dominants of Dryness/Wetness Changes in Southwest China

Zhou

Sun

Shi

et al. 2019

Advances in Meteorology

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A full analysis of 3-month Standardized Precipitation-Evapotranspiration index (SPEI-3) changes and attribution analyses are of significance for deeply understanding dryness/wetness evolutions and thus formulating specific measures to sustain regional development. In this study, we analyze monthly and annual SPEI-3 changes over Southwest China (SWC; including Sichuan (SC), Chongqing (CQ), Guizhou (GZ), Yunnan (YN), and west Guangxi (wGX)) during 1961–2012, using the SPEI model and routine meteorological measurements at 269 weather sites. For SWC and each subregion (excluding wGX), annual SPEI-3 during 1961–2012 tends to decrease, and drying is at most of months in January and September–December, but wetting is in February–August (excluding March for wGX). Additionally, more than 50% of sites show declined and increased SPEI-3 in January, April, June, and August–December and the remaining months, respectively. Except for wGX with dominant of ET0, annual SPEI-3 changes in SWC and other four subregions have dominant of precipitation. Spatially, annual SPEI-3 changes at 59% of sites are because of precipitation, generally located in southeast SC, south YN, CQ, GZ, and south and northeast wGX. Nevertheless, dominants at regional and site scales vary among months, e.g., SWC, SC, CQ, and GZ, having dominant of precipitation (ET0) during September–December (most of months during January–August), YN always with dominant of precipitation, and wGX with dominant of precipitation (ET0) in February–April and July–December (January, May, and June). Importantly, this study provides a reference for quantitatively evaluating spatiotemporal dryness/wetness variations with climate change, especially for regions with significant drying/wetting.

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“…In recent years, several authors also noticed the clear impact of tropical Northern Atlantic (TNA) SST anomalies on the East Asian climate variation via modulating atmospheric circulation over the WNP (Gu et al ., ; Wu et al ., ; Liu et al ., ; Wu et al ., ; Zuo et al ., ; Hong et al ., ; Chen et al ., ; Zhou and Wu, ; Chang et al ., ; Lu et al ., ; Chen et al ., ; Li et al ., ). For example, Hong et al .…”

Section: Introductionmentioning

confidence: 97%

Combined impact of tropical central‐eastern Pacific and North Atlantic sea surface temperature on precipitation variation in monsoon transitional zone over China during August–September

Zhao

Chen

et al. 2019

Intl Journal of Climatology

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Previous studies suggested that sea surface temperature (SST) anomalies in the tropical central‐eastern Pacific (TCEP) and tropical Northern Atlantic (TNA) both have significant impacts on the inter‐annual variation of precipitation over the monsoon transitional zone (MTZ) in China during August–September. This study further reveals that the relationship between TCEP (TNA) SST and MTZ precipitation during August–September is strongly modulated by the sign of the TNA (TCEP) SST. When TCEP and TNA SST anomalies have the same sign, connections of the TCEP and TNA SST with the MTZ precipitation are unclear. In contrast, TCEP and TNA SST changes both have significant relation with the MTZ precipitation when they have the opposite sign. During the same‐sign years, the anticyclonic (cyclonic) anomaly over the western North Pacific generated by the TCEP SST cooling (warming) is weakened by the cyclonic (anticyclonic) anomaly triggered by the TNA SST cooling (warming). Thus, connections of the MTZ precipitation with the TCEP and TNA SST are weak. However, during the opposite‐sign years, the anticyclonic anomalies over the western North Pacific generated by the TCEP SST anomalies have a constructive superposition on those induced by the TNA SST changes. As such, connections of the TCEP and TNA SST with the MTZ precipitation variation are significant. Further analysis shows that the prediction skill of precipitation over the MTZ is enhanced if taking both the TCEP and TNA SST signals into account.

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Remote impact of North Atlantic sea surface temperature on rainfall in southwestern China during boreal spring

Cited by 37 publications

References 38 publications

Increased Role of Late Winter Sea Surface Temperature Variability Over Northern Tropical Atlantic in Spring Precipitation Prediction Over Northeast China

Increased Role of Late Winter Sea Surface Temperature Variability Over Northern Tropical Atlantic in Spring Precipitation Prediction Over Northeast China

Spatiotemporal Differences in Dominants of Dryness/Wetness Changes in Southwest China

Combined impact of tropical central‐eastern Pacific and North Atlantic sea surface temperature on precipitation variation in monsoon transitional zone over China during August–September

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