A5019003445- Climate variability and models
- Meteorological Phenomena and Simulations
- Cryospheric studies and observations
- Tropical and Extratropical Cyclones Research
- Precipitation Measurement and Analysis
- Oceanographic and Atmospheric Processes
- Climate change and permafrost
- Atmospheric aerosols and clouds
- Arctic and Antarctic ice dynamics
- Plant Water Relations and Carbon Dynamics
- Atmospheric and Environmental Gas Dynamics
- Marine and coastal ecosystems
- Atmospheric chemistry and aerosols
- Environmental Changes in China
- Environmental and Agricultural Sciences
- Atmospheric Ozone and Climate
- Hydrology and Watershed Management Studies
- Solar Radiation and Photovoltaics
- Urban Heat Island Mitigation
- Fish Ecology and Management Studies
- Soil Moisture and Remote Sensing
- Remote Sensing and Land Use
- Aquatic Ecosystems and Phytoplankton Dynamics
- Scientific Computing and Data Management
- Geological Modeling and Analysis
Nanjing University
2016-2025
Chengdu University of Information Technology
2020-2025
Northwestern University
2024
Chinese Academy of Sciences
2023-2024
Nanjing Audit University
2016-2022
State Key Laboratory of Severe Weather
2019-2022
National Oceanic and Atmospheric Administration
2022
China Meteorological Administration
2018-2020
École Polytechnique
2020
First Institute of Oceanography
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 Based on the hourly rainfall gauge data and ERA5 reanalysis of 1980–2022, this study reveals characteristics regional precipitation events (RPEs) over middle lower Yangtze River basin (MLYRB) in summer associated mechanisms. Results show that RPEs contribute more than 60% total most MLYRB dominate morning diurnal peak, interannual variation, phased increasing trend for MLYRB. The mainly occurring under two monsoonal types with shear line (Type1 Type2; 91.4%) landfalling tropical...
Abstract. Regional air pollution is significantly associated with dominant weather systems. In this study, the relationship between particle over Yangtze River Delta (YRD) region and patterns investigated. First, characteristics of particles in YRD are studied using situ monitoring data (PM2.5 PM10) 16 cities Terra/MODIS AOD (aerosol optical depth) products collected from December 2013 to November 2014. The results show that regional mean value high YRD, an annual 0.71±0.57. concentrations...
Abstract The changes in summer rainfall over the Tarim Basin, China, and underlying mechanisms have been investigated using observed data at 34 stations NCEP–NCAR reanalysis during period of 1961–2007. Results show that which exhibits a significant increasing trend last half century, is closely related to middle upper tropospheric cooling central Asia. Mechanism analysis indicates Asia results location farther south subtropical westerly jet western with anomalous southerly wind lower levels...
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 Extreme summer precipitation often associated with flash floods has devastating impact on the local economies and livelihood of millions people over East China. Tracking down drivers those extreme events will help to understand their formation mechanisms improve forecasts. Here synoptic patterns China during 1961–2018 have been identified systematically quantitatively using a circulation clustering method. The results show that regional are dominated by Eastern Asian monsoon Meiyu...
Abstract Revealing the synoptic patterns related to hourly extreme precipitation (EP) is very important deepen our recognition and understanding of EP formation. The predominant associated with summer regional events (RHEPE) over central‐eastern Tibetan Plateau (CETP) Sichuan Basin (SCB) have been systematically identified. Results show RHEPE CETP SCB are dominated by background large‐scale circulations featured configuration eastward‐extended South Asia high (SAH) westward‐extended Western...
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...
The ability of FLake, WRF-Lake, and CoLM-Lake models in simulating the thermal features Lake Nam Co Central Tibetan Plateau has been evaluated this study. All three with default settings exhibited distinct errors simulated vertical temperature profile. Then model calibration was conducted by adjusting (four) key parameters within FLake (WRF-Lake) a series sensitive experiments. Results showed that each model's performance is to becomes much better when all relative tuning single parameter....
The improvements and validation of several parameterization schemes in the second version Beijing Climate Center Atmosphere-Vegetation Interaction Model (BCC_AVIM2.0) are introduced this study. main updates include a replacement water-only lake module by common land model (CoLM-lake) with more realistic snow-ice-water-soil framework, scheme for rice paddies added vegetation module, renewed parameterizations snow cover fraction surface albedo to accommodate varied aging effect during...
Abstract In this study, a process‐based lake model is used to investigate the influence of climate change on thermodynamics 30 large lakes over Tibetan Plateau (TP). The was driven by atmospheric forcing derived from bias‐corrected projections three global models in twenty‐first century under Shared Socioeconomic Pathways (SSPs). hindcasts during 2000–2014 can reasonably capture seasonality and magnitude satellite retrieved surface temperature (LST). Future 2015–2100 suggest widespread...
Abstract The roles of the Tibetan Plateau (TP) and Yunnan‐Guizhou (YGP) in regional precipitation extremes over Sichuan Basin (SCB) summer under specific circulation background remain unclear. This study quantifies impact TP or YGP on extreme event (REPE) which occurred during 04:00 Beijing time (BJT) 11 August to 03:00 BJT 13 2020 with a rainfall center located western SCB based numerical experiments. Results show that accumulated regionally averaged REPE can be reduced by 84% (51%) when is...
The solutions of three lake hydrodynamic models, namely, Princeton Ocean Model (POM), Canadian Version Diecast Model, and Estuary, Lake, Coastal are compared with each other observations in Lake Ontario. models have the same horizontal resolution forced meteorological during mid‐April to early October 2006. obtained qualitatively similar results, although they differences physical parameters, numerical scheme, vertical discretization. Comparison shows that can reproduce time evolution...
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 Five satellite precipitation products, including Climate Prediction Center Morphing Technique (CMORPH), Precipitation Estimation From Remotely Sensed Information Using Artificial Neural Network (PERSIANN), Tropical Rainfall Measuring Missing (TRMM) Multisatellite Analysis (TMPA) version 7 products 3B41RTV7, 3B42RTV7, and 3B42V7, are systematically evaluated by comparing to the daily data collected from ~2400 gauge stations over China during January 2000 December 2014. Satellite...
The weather research and forecasting model including a one-dimensional thermal diffusion lake is adopted to investigate the summer climatic effect of clusters over Tibetan Plateau (TP) during 2008–2014 based on two experiments with without lakes. Overall, can reasonably reproduce daily variations surface temperature spatial patterns 2 m air (T2m) precipitation TP summer. Sensitivity results show that effects lakes over-lake T2m exhibit distinctive seasonal diurnal features strong space...
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. Wind stress, wind waves, and turbulence are essential variables play a critical role in regulating series of physical biogeochemical processes large shallow lakes. However, the parameterization these simulation their interactions lakes have not been strictly evaluated owing to lack field observations lake hydrodynamic processes. To address this problem, two process-based were conducted record development summer winter wind-driven currents Lake Taihu, China. Using numerical...
Abstract Thousands of lakes and complex topography on Tibetan Plateau (TP) have important impacts the local weather climate, especially extreme events. In this study, Weather Research Forecasting model was adopted to quantify Lake Nam Co (LNC) surrounding snowfall event over basin 24 October 2006 based numerical experiments. The accumulated precipitation 12 hr in is characterized by a maximum center with an intensity exceeding 20 mm eastern LNC downwind regions. Results show that regionally...
Abstract Surface solar radiation (SSR), as a primary component of heat budget between land and atmosphere, controls both water energy exchanges. However, the sub‐grid terrain radiative effect (STRE) which exerts critical influences on SSR simulation is usually extremely simplified or even ignored in most current surface models (LSMs) due to heavy computational burden. In this study, we developed physically realistic computationally efficient three dimensional (3D) STRE scheme implemented it...
Abstract Based on the hourly rainfall gauge data and ERA5 reanalysis for period 1980–2020, typical synoptic patterns responsible summer regional extreme precipitation events (RHEPE) over middle lower Yangtze River basin have been objectively identified using a circulation clustering method. It is found that Meiyu front with different locations intensities imbedded in East Asian monsoon, landfalling typhoons are leading contributors. As dominant pattern, pattern associated ∼92% of total RHEPE...