A5022110411- Climate variability and models
- Meteorological Phenomena and Simulations
- Oceanographic and Atmospheric Processes
- Tropical and Extratropical Cyclones Research
- Environmental and Agricultural Sciences
- Environmental Changes in China
- Arctic and Antarctic ice dynamics
- Atmospheric and Environmental Gas Dynamics
- Cryospheric studies and observations
- Plant Water Relations and Carbon Dynamics
- Remote Sensing and Land Use
- Precipitation Measurement and Analysis
- Urban Heat Island Mitigation
- Climate change and permafrost
- Hydrology and Drought Analysis
- Atmospheric aerosols and clouds
- Atmospheric chemistry and aerosols
- Ocean Waves and Remote Sensing
- Aeolian processes and effects
- Marine and coastal ecosystems
- Atmospheric Ozone and Climate
- Hydrology and Watershed Management Studies
- Climate change impacts on agriculture
- Tree-ring climate responses
- Regional Economic and Spatial Analysis
Nanjing University
2016-2025
China Meteorological Administration
2017-2024
Nanjing Audit University
2016-2021
First Institute of Oceanography
2020
Sorbonne Université
2020
École Polytechnique
2020
Chengdu University of Information Technology
2020
Ministry of Natural Resources
2020
Laboratoire de Météorologie Dynamique
2020
Centre National de la Recherche Scientifique
2020
Abstract. The main advancements of the Beijing Climate Center (BCC) climate system model from phase 5 Coupled Model Intercomparison Project (CMIP5) to 6 (CMIP6) are presented, in terms physical parameterizations and performance. BCC-CSM1.1 BCC-CSM1.1m two models involved CMIP5, whereas BCC-CSM2-MR, BCC-CSM2-HR, BCC-ESM1.0 three configured for CMIP6. Historical simulations 1851 2014 BCC-CSM2-MR 2005 used assessment. evaluation matrices include following: (a) energy budget at...
Abstract Atmospheric convective available potential energy (CAPE) is expected to increase under greenhouse gas–induced global warming, but a recent regional study also suggests enhanced inhibition (CIN) over land although its cause not well understood. In this study, climate model first evaluated by comparing CAPE and CIN with reanalysis data, then their future changes the underlying causes are examined. The reasonably captures present-day patterns seen in reanalysis, projects increased...
The location change of the westerly jet core at upper troposphere in June and July is investigated by using NCEP/NCAR reanalysis data. results show that changes rapidly from 140°E to 90°E during 35th–39th pentads, which corresponds plum rain period over East Asia. actually relative intensity different centers. meridional temperature contrast associated with rapid core. diabatic heating are primary factor determining seasonal evolution
In this study, we applied an uncertainty quantification (UQ) technique to improve convective precipitation in the global climate model, Community Atmosphere Model version 5 (CAM5), which and stratiform partitioning is very different from observational estimates. We examined sensitivity of circulation several key parameters Zhang‐McFarlane deep convection scheme CAM5, using a stochastic importance‐sampling algorithm that can progressively converge optimal parameter values. The impact improved...
Abstract. BCC-CSM2-HR is a high-resolution version of the Beijing Climate Center (BCC) System Model (T266 in atmosphere and 1/4∘ latitude × longitude ocean). Its development on basis medium-resolution BCC-CSM2-MR (T106 1∘ ocean) which baseline for BCC participation Coupled Intercomparison Project Phase 6 (CMIP6). This study documents model, highlights major improvements representation atmospheric dynamical core physical processes. evaluated historical climate simulations from 1950 to 2014,...
Abstract Urban land use and anthropogenic heat (AH) emission can considerably influence the human thermal comfort during extreme events. In this study, a spatially heterogeneous AH data updated urban are integrated into Weather Research Forecasting model to simulate physical processes of warming summer. Simulations conducted in Yangtze River Delta (YRD) east China suggest that mean island intensity reaches 1.49 °C urbanized areas summer, with making considerable contribution. The effect due...
Abstract Based on the outputs of historical and future representative concentration pathway (RCP) experiments produced by 28 models from phase 5 Coupled Model Intercomparison Project (CMIP5), changes in climatic mean, interannual standard deviation (ISD), long-term trends annual precipitation over central Asia (CA) have been estimated. Under different emission scenarios during twenty-first century, mean ISD (long-term trends) CA projected five best models’ ensemble show very similar (quite...
Abstract Observational analysis indicates that the East Asian jet stream consists of two separate branches: subtropical (EASJ) and polar front (EAPJ). The impacts different intensity configurations EASJ EAPJ on precipitation during mei-yu season are investigated using NCEP–NCAR Reanalysis Project (NNRP) dataset daily gauge observations in China. location associated with EAPJ. Precipitation increases intensification rainband is located to north region when intensifies weakens. Further...
Abstract This study investigates the linkage between East Asian winter monsoon (EAWM) variability and upper-level jets, with particular focus on polar front jet (PJ) its concurrent variation subtropical located to south of Tibetan Plateau (TSJ). The zonal wind variations over landmass (70°–120°E) are dominated by two principal modes (i.e., meridional displacement PJ out-of-phase in intensity TSJ PJ) they closely linked EAWM northern mode southern mode, respectively. Southward shifting...
The Eurasian teleconnection pattern (EU) is a major mode of low-frequency variability in the Northern Hemisphere winter, with notable impacts on temperature and precipitation anomalies Eurasia region. To investigate structure, life cycle dynamical mechanisms EU pattern, diagnostic analyses are conducted to clarify evolution, an emphasis development decay. In developing stage, geopotential height anomaly over North Atlantic emerges 6 days before peak phase other three appear one by following...
Abstract The Asian monsoon provides the freshwater that a large population in Asia depends on, but how anthropogenic climate warming may alter this key water source remains unclear. This is partly due to prevailing point-wise assessment of projections, even though change patterns are inherently organized by dynamics intrinsic system. Here, we assess future changes East summer precipitation projecting from several ensemble simulations and CMIP6 onto two leading dynamical modes internal...
Abstract To investigate the concurrent impacts of East Asian polar front jet (EAPJ) and subtropical (EASJ) on summer rainfall over eastern China, positive (strengthened EAPJ with weakened EASJ) negative (weakened strengthened configurations are identified. In configuration, decreases in northern part China increases southern part, vice versa configuration. The possible mechanisms maintaining two further proposed from perspectives sea surface temperature (SST) synoptic-scale transient eddy...
Reasonably modeling the magnitude, south–north gradient and seasonal propagation of precipitation associated with East Asian summer monsoon (EASM) is a challenging task in climate community. In this study we calibrate five key parameters Kain–Fritsch convection scheme WRF model using an efficient importance-sampling algorithm to improve EASM simulation. We also examine impacts improved on other physical process. Our results suggest similar sensitivity values optimized across years different...
Abstract Spring persistent rainfall (SPR) over southern China has great impact on its society and economics. A remarkable feature of the SPR is high frequency. However, frequency obviously decreases period 1997–2011. In this study, possible causes have been investigated from perspective individual concurrent effects East Asian subtropical jet (EASJ) polar front (EAPJ). close relationship detected between EASJ intensity (but not EAPJ intensity). Associated with strong EASJ, abundant water...
Abstract The climatic effects of irrigation over the Huang‐Huai‐Hai Plain (3HP) in China are investigated by using weather research and forecasting model coupled with an operational‐like scheme. Multiple numerical experiments off/on during spring, summer, both spring summer conducted. Results show that warm bias surface temperature dry soil moisture reduced 3HP region growing seasons considering model. air nongrowing is also affected because persistent on land‐air energy exchanges ground...
Abstract Recent concurrent shifts of the East Asian polar-front jet (EAPJ) and subtropical (EASJ) in boreal winter have raised concerns, since they could result severe weather events over Asia. However, possible mechanisms are not fully understood. In this study, roles interdecadal Pacific oscillation (IPO) Atlantic multidecadal (AMO) investigated by analyzing reanalysis data model simulations. Results show that combinations opposite phases IPO AMO can significant two jets during 1920–2014....
In late July and early August 2018, Northeast China suffered from extremely high temperatures, with the maxium temperature anomaly exceeding 6°C. this study, large-scale circulation features associated heat wave over are analyzed using station data NCEP–NCAR reanalysis data. The results indicate that strong anomalous positive geopotential height centers existed lower to upper levels China, related downward motions were directly responsible for extreme high-temperature anomalies....
Abstract. Main progresses of Beijing Climate Center (BCC) climate system model from the phase five Coupled Model Intercomparison Project (CMIP5) to its six (CMIP6) are presented, in terms physical parameterizations and models performance. BCC-CSM1.1 BCC-CSM1.1m two involved CMIP5, BCC-CSM2-MR, BCC-CSM2-HR, BCC-ESM1.0 three configured for CMIP6. Historical simulations 1851 2014 BCC-CSM2-MR 2005 used assessment. The evaluation matrices include (a) energy budget at top atmosphere, (b) surface...
Abstract Terrains strongly affect the surface solar radiation (SSR) and energy balance, further greatly modulate weather climate in rugged areas. In this study, we have developed a clear‐sky 3‐dimensional sub‐grid terrain radiative effect (3DSTSRE) parameterization scheme based on mountain theory with full consideration of influences configuration terrains. Results show that 3DSTSRE achieves equivalent downward SSR flux at model grids derived from those explicitly calculated sub‐grids...
Abstract The Regional Climate Model Version 4 (RegCM4) with the conventional plane‐parallel radiative transfer scheme severely overestimates summer precipitation over Tibetan Plateau (TP) due to excessive surface heat source, which results from poor representation of sub‐grid terrain‐related radiation processes. To realistically describe process in RegCM4, a 3‐dimensional terrain solar effect (3DSTSRE) parameterization is implemented into RegCM4 improve original scheme. Results show that...
Abstract The concurrent variation features between the East Asian subtropical jet and polar front were investigated during persistent snowstorm period in 2007/2008 winter over southern China. was divided into two parts: (1) plateau jet, located along side of Tibetan Plateau, (2) ocean situated at southeastern Japan Island. intensity among associated atmospheric anomalous signals examined. A possible mechanism for three jets also from a perspective synoptic‐scale transient eddy activities...