ABSTRACT In this study, fine‐resolution multimodel climate projections over China are developed based on 35 models and two emissions scenarios ( RCP4 .5 RCP8 .5) from phase five of the Coupled Model Intercomparison Project CMIP5 ) by means Bias Correction Spatial Disaggregation. The yearly‐averaged temperature is projected to increase 0.8 1.6 °C (0.8 1.7 °C), 1.5 2.7 (2 3.7 1.9 3.3 (3.4 6 °C) under in three time slices (2010–2039, 2040–2069, 2070–2099), respectively. most warming occurs...

The interdecadal modulation of the Pacific Decadal Oscillation (PDO) upon impact El Niño‐Southern (ENSO) on east Asian winter monsoon (EAWM) is investigated. When PDO in its high phase, there no robust relationship between ENSO and EAWM interannual timescale. low exerts strong EAWM, with significant low‐level temperature changes occurring over Asia. contrast ENSO's influence two phases quite remarkable, which urges that phase should be taken into account ENSO‐based prediction wintertime...

Abstract The present study investigates the roles of El Niño–Southern Oscillation (ENSO) and Pacific decadal oscillation (PDO) in relationship between East Asian winter monsoon (EAWM) following summer (EASM). variability EAWM is divided into an ENSO-related part named EAWMEN ENSO-unrelated EAWMres. Corresponding to a weak EAWMEN, anomalous low-level anticyclone forms over western North (WNP) persists from summer. This enhances southerlies coast Asia Hence, tends be followed by strong EASM...

Abstract In this study, we investigate the different impacts of El Niño and Modoki on China rainfall in their decaying phases. During spring, year events, there are positive anomalies south Yangtze River, whereas no obvious signals found same season for Modoki. subsequent summer season, wet signal River associated with continues, while suppressed now appears northern Yangtze–Huaihe region. contrast, is above normal region from Huaihe to Yellow below southern during events. The distinct...

Abstract In January 2008, central and southern China experienced persistent low temperatures, freezing rain, snow. The large-scale conditions associated with the occurrence development of these snowstorms are examined in order to identify key synoptic controls leading this event. Three main factors identified: 1) blocking high over Siberia, which remained quasi-stationary around 65°E for 3 weeks, led advection dry cold Siberian air down China; 2) a strong southwesterly flow western Pacific...

Abstract The thermal contrast between the Asian continent and adjacent oceans is primary aspect of East winter monsoon (EAWM) that can be well represented in sea level pressure (SLP) field. Based on this consideration, a new SLP-based index measuring intensity EAWM proposed by explicitly taking into account both east–west north–south gradients around Asia. delineate EAWM-related circulation anomalies well, including deepened (shallow) midtropospheric trough, sharpened accelerated (widened...

Multivariate statistical methods including cluster analysis (CA), discriminant (DA) and component analysis/factor (PCA/FA), were applied to explore the surface water quality datasets 14 parameters at 28 sites of Eastern Poyang Lake Basin, Jiangxi Province China, from January 2012 April 2015, characterize spatiotemporal variation in pollution identify potential sources. The sampling stations divided into two periods (wet season dry season) regions (low high pollution), respectively, using...

Abstract We estimate that anthropogenic forcing caused half of the observed temperature anomaly during August 2022 heatwave in southern China. Thermodynamical processes, especially soil moisture–SAT feedback, amplified heatwave.

Abstract The North Pacific Oscillation (NPO), an important mode of atmospheric variability, is a crucial trigger for the development El Niño-Southern (ENSO) via seasonal footprinting mechanism. How NPO effect on ENSO changes in response to greenhouse warming remains unclear, however. Here, using climate model simulations under high-emission scenarios, we show that leads enhanced influence as manifested by responses winter sea surface temperature (SST), precipitation and wind anomalies...

Abstract Interannual variations of the East Asian trough (EAT) axis at 500 hPa are studied with European Centre for Medium-Range Weather Forecasts 40-yr reanalysis data. The associated circulation pattern and pathway winter monsoon (EAWM) EAT tilt specially investigated a index, which is closely related to midlatitude baroclinic process mainly represents intensity eddy-driven jet over Asia–North Pacific sector. When smaller than normal, EAWM prefers take southern less cold air moves central...

The impacts of conventional El Niño‐Southern Oscillation (ENSO) and ENSO Modoki on wintertime Southeast Asian rainfall related mechanisms are studied using the method partial regression correlation numerical simulations a simple baroclinic model. Results show that associated with these two kinds exhibits different spatial distributions. In case Niño, wet conditions observed over south China, dry seen Philippines, Borneo, Celebes, Sulawesi. contrast, for Niño Modoki, negative anomalies around...

The variability of both the stationary planetary wave activity and East Asian winter monsoon is strongly associated with thermal contrast between oceans landmasses. In this study, we explore interannual relationship defined by an index difference in divergence Eliassen‐Palm flux 50°N at 500 hPa 40°N 300 hPa. It found that, compared to winters low activity, equatorward propagation waves middle upper troposphere stronger high winters. During these winters, upward from into stratosphere becomes...

Abstract Interdecadal variations of the East Asian winter monsoon (EAWM) and their association with quasi-stationary planetary wave activity are analyzed by using 40-yr European Centre for Medium-Range Weather Forecasts Re-Analysis dataset National Centers Environmental Prediction–National Center Atmospheric Research reanalysis dataset. It is found that EAWM experienced a significant weakening around late 1980s; is, was strong during 1976–87 became weak after 1988. This leads to an obvious...

Abstract Modulation of the Pacific decadal oscillation (PDO) on behavior East Asian summer monsoon (EASM) in El Niño decaying years has been studied. When is phase with PDO (El Niño/high PDO), low-level atmospheric anomalies are characterized by an anticyclone around Philippines and a cyclone Japan, inducing anomalous tripolar rainfall pattern China. In this case, western subtropical high (WPSH) experiences one-time slightly northward shift July then stays stationary from to August. The...