Potential remote forcing of North Atlantic SST tripole anomalies on the seesaw haze intensity between late winter months in the North China plain: A case study DOI Creative Commons
Jing Wang, Yanju Liu, Yihui Ding

и другие.

Atmospheric Science Letters, Год журнала: 2023, Номер 24(9)

Опубликована: Апрель 26, 2023

Abstract This study identified a prominent temporal seesaw haze intensity case that occurred between the late winter months of 2010 in North China Plain (NCP), featuring considerably suppressed January and enhanced adjacent month February 2011. We suggest dramatic alternations atmospheric oceanic anomalies played fundamental roles forming this case, rather than changes manmade emission anomalies. The 2011 was tied to an equivalent barotropic cyclonic anomaly dominated NCP its surroundings, which generated situ haze‐suppressed meteorology characterized by strengthened lower‐level northerly with cold dry conditions, as well elevated boundary layer height destabilized stratification. In stark contrast, connected anticyclonic anomaly, linking haze‐favourable opposite pronounced Atlantic sea surface temperature (SST) tripole anomalies, positive tropical mid‐latitudinal negative subtropical Atlantic, made significant contribution above‐mentioned case. Diagnostic analyses suggested SST were linked Oscillation (NAO)‐like pattern, acted source Rossby wave train generate concurrent over NCP. February, although NAO‐like pattern drastically dampened, centred southeast Yamal Peninsula critical role relaying impact thus inducing meteorology. Consequently, could exert effective modulation effect on generation intensity. proposed mechanism further verified using Community Earth System Model Large Ensemble Numerical Simulation (CESM‐LENS) datasets.

Язык: Английский

Variability in temperature extremes across the Tibetan Plateau and its non-uniform responses to different ENSO types DOI

Zhiwei Yong,

Zegen Wang, Junnan Xiong

и другие.

Climatic Change, Год журнала: 2023, Номер 176(7)

Опубликована: Июнь 29, 2023

Язык: Английский

Процитировано

5
Evident differences of haze days between December and January in north China and possible relationships with preceding climate factors DOI Creative Commons
Zhicong Yin, Yuyan Li, Yijia Zhang

и другие.

International Journal of Climatology, Год журнала: 2022, Номер 43(1), С. 438 - 455

Опубликована: Июнь 26, 2022

Abstract Air pollution of fine particulate matter (PM 2.5 ) is severe in winter and causes vast premature deaths north China. Many previous studies have concerned winter‐mean haze conditions identified some useful climate factors. However, obvious differences the number days also existed between December January (HD J‐D that lacked understandings. The HD maximum was 6.6 days, which occurred 2005 2006, accounting for more than 45% monthly mean these 2 months. Differences large‐scale atmospheric circulations were distributed like a Rossby wave pattern mid‐troposphere, with centres west Europe (+), to Caspian Sea (−) China (+). Associated meteorological resulted adverse ventilation stronger chemical productions, thus larger December. In addition, significant relationships three preceding factors during 1979–2018 revealed, including August–September–October sea ice over Laptev Kara (correlation coefficient = −0.53), November snow depth eastern western Siberia −0.44) surface temperature Mid‐Atlantic Ridge −0.48). Abundant analyses, basing on observation data, large‐ensemble simulations simulations, all reproduced influences each factor local associated changes.

Язык: Английский

Процитировано

7
Impact of stratospheric variability on subseasonal temperature reversals during late winter over the mid-high latitudes of East Asia DOI Open Access
Wogu Zhong, Zhiwei Wu

Atmospheric Research, Год журнала: 2023, Номер 297, С. 107115 - 107115

Опубликована: Ноя. 22, 2023

Язык: Английский

Процитировано

4
Interannual Variation in Mainland China’s Atmosphere Clearness Index Associated with El Niño–Southern Oscillation DOI Creative Commons
Zongpeng Song, Bo Wang, Hui Zheng

и другие.

Atmosphere, Год журнала: 2024, Номер 15(2), С. 180 - 180

Опубликована: Янв. 31, 2024

Atmosphere clearness is the single most essential parameter determining surface solar radiation. However, few studies have investigated interannual variations in China’s atmosphere and impacts of El Niño–Southern Oscillation on it. This study aims to fill knowledge gap by calculating index using China Meteorological Forcing Dataset version 1.7 then analyzing correlations between anomaly Niño-3.4 index. The results show that there a significantly negative correlation southeastern coastal regions, northern Xinjiang, northeastern Xizang, areas from Hebei middle Inner Mongolia. In these areas, higher ENSO index, lower and, coincidingly, positive precipitation anomalies are reported previous studies. Niño La Niña vary with seasons. events generally opposite seasons other than summer. tends decrease while territories China. different places statistical significance. significant regions winter northeast autumn. southwestern seasons, ENSO’s scale strength event. Stronger amplify magnitude anomalies, spatial patterns kept almost invariant. summer, exhibit characteristics events. For events, insignificant China, even for strong ones. has larger influence summertime Niña, pattern Niña’s varies event strength. during tripolar south north between. suggests relationship These findings would provide valuable insights into could be clues further investigation. revealed should important developing energy.

Язык: Английский

Процитировано

1
Potential remote forcing of North Atlantic SST tripole anomalies on the seesaw haze intensity between late winter months in the North China plain: A case study DOI Creative Commons
Jing Wang, Yanju Liu, Yihui Ding

и другие.

Atmospheric Science Letters, Год журнала: 2023, Номер 24(9)

Опубликована: Апрель 26, 2023

Abstract This study identified a prominent temporal seesaw haze intensity case that occurred between the late winter months of 2010 in North China Plain (NCP), featuring considerably suppressed January and enhanced adjacent month February 2011. We suggest dramatic alternations atmospheric oceanic anomalies played fundamental roles forming this case, rather than changes manmade emission anomalies. The 2011 was tied to an equivalent barotropic cyclonic anomaly dominated NCP its surroundings, which generated situ haze‐suppressed meteorology characterized by strengthened lower‐level northerly with cold dry conditions, as well elevated boundary layer height destabilized stratification. In stark contrast, connected anticyclonic anomaly, linking haze‐favourable opposite pronounced Atlantic sea surface temperature (SST) tripole anomalies, positive tropical mid‐latitudinal negative subtropical Atlantic, made significant contribution above‐mentioned case. Diagnostic analyses suggested SST were linked Oscillation (NAO)‐like pattern, acted source Rossby wave train generate concurrent over NCP. February, although NAO‐like pattern drastically dampened, centred southeast Yamal Peninsula critical role relaying impact thus inducing meteorology. Consequently, could exert effective modulation effect on generation intensity. proposed mechanism further verified using Community Earth System Model Large Ensemble Numerical Simulation (CESM‐LENS) datasets.

Язык: Английский

Процитировано

3