Wenju Cai, Lixin Wu, Matthieu Lengaigne, Tim Li et al.
The El Niño-Southern Oscillation (ENSO), which originates in the Pacific, is the strongest and most well-known mode of tropical climate variability. Its reach is global, and it can force climate variations of the tropical Atlantic and Indian Oceans by perturbing the global atmospheric circulation. L...
Sanjeev Dasari, August Andersson, Srinivas Bikkina, Henry Holmstrand et al.
during over-ocean transit across Bay of Bengal to an Indian Ocean receptor site. This study facilitates dynamic parameterization of WS-BrC absorption properties, thereby constraining BrC climate impact over South Asia.
Pentti Paatero, Philip K. Hopke, BA Begum, Sanjit Biswas
Jian Rao, Chaim I. Garfinkel, Haishan Chen, Ian White
Abstract Using multiple data sources, favorable conditions for the 2019 SSW event and its predictive skill from 11 subseasonal to seasonal (S2S) forecast models are explored in this study. This mixed‐type (displacement to split) SSW event occurred under moderate El Niño, easterly quasi‐biennial osci...
Dingzhu Hu, Zhaoyong Guan, Wenshou Tian, Rongcai Ren
The stratospheric Arctic vortex (SAV) plays a critical role in forecasting cold winters in northern mid-latitudes. Its influence on the tropospheric mid- and high-latitudes has attracted growing attention in recent years. However, the trend in the SAV during the recent two decades is still unknown. ...
Jian Rao, Chaim I. Garfinkel, Ian White
Using the real-time predictions from 11 models, this study analyzes the prediction of the downward propagation and surface impact of the 2018 and 2019 sudden stratospheric warmings (SSWs). These two SSWs differed both in their morphology types (2018: split; 2019: displacement followed by split) and ...
Jian Rao, Rongcai Ren, Haishan Chen, Yueyue Yu et al.
Abstract A major stratospheric sudden warming (SSW) event was observed in February 2018 after a 4‐year absence since the winter of 2013/2014. Based on the reanalysis data, the polar night jet changed from a very strong state to a moderate state during 12–19 January, and the moderate westerlies direc...
Alaa Mhawish, Meytar Sorek‐Hamer, R. B. Chatfield, Tirthankar Banerjee et al.
The present study summarizes two decades (2000–2019) of climatology and trends in aerosol loading and optical properties using a high spatial resolution data obtained from NASA's MODIS MAIAC and MISR aerosol products supplemented by moderate resolution aerosol data from OMI sensor over South Asia (S...
Mohammed Jaoui, Tadeusz E. Kleindienst, Kenneth S. Docherty, Michael Lewandowski et al.
Environmental context Sesquiterpenes, chemicals emitted by terrestrial vegetation, are oxidised in the ambient atmosphere leading to the formation of secondary organic aerosol. Although secondary organic aerosol can have significant effects on air quality from local to global scales, considerable ga...
Mei‐Yi Fan, Yanlin Zhang, Yu‐Chi Lin, Fang Cao et al.
Abstract Nitrate (NO 3 − ) is a major contributing species to haze formation in Northern China. So far, formation processes and source apportionments of nitrate aerosols during haze pollution have not yet been well understood. In this study, the PM 2.5 samples were collected in Beijing from 13 Novem...
Qinjian Jin, Jiangfeng Wei, Bing Pu, Zong‐Liang Yang et al.
Abstract Satellite observations show high aerosol loadings over the Arabian Sea in boreal summer, which have great impacts on the Indian monsoon due to absorbing dust aerosols. However, the compositions, origins, transport pathways, and decadal trends of these aerosols have not been well studied. In...
Abdoul Aziz Saidou Chaibou, Xiaoyan Ma, Tong Sha
Abstract Dust is the dominant aerosol type over West Africa (WA), and therefore accurate simulation of dust impact is critical for better prediction of weather and climate change. The dust radiative forcing (DRF) is estimated using two sets of experiments in this study: one without and the other wit...
Sanjeev Dasari, August Andersson, A. Stohl, Nikolaos Evangeliou et al.
= 44 ± 8%) with observations. Direct source-segregated comparison reveals regional offsets in anthropogenic emission fluxes in EIs, overestimated fossil-BC in the IGP, and underestimated biomass-BC in PI, which contributes to the model-observation bias. This ground-truthing pinpoints uncertainties i...
Nahid Akhtar, Masahiro Yamaguchi, Hidetoshi Inada, Daiki Hoshino et al.
To assess the effects of tropospheric O3 on rice cultivated in Bangladesh, four Bangladeshi cultivars (BR11, BR14, BR28 and BR29) of rice (Oryza sativa L.) were exposed daily to charcoal-filtered air or O3 at 60 and 100 nl l(-1) (10:00-17:00) from 1 July to 28 November 2008. The whole-plant dry mass...
Xin Geng, Wenjun Zhang, Malte F. Stuecker, Fei‐Fei Jin
East Asia experienced a record-breaking cold event during the 2015/16 boreal winter, with pronounced impacts on livelihood in the region. We find that this large-scale cold spell can be attributed to the concurrent super El Niño event in the tropical Pacific. Our analysis reveals that all super El N...