A5037714905- Meteorological Phenomena and Simulations
- Climate variability and models
- Tropical and Extratropical Cyclones Research
- Atmospheric aerosols and clouds
- Precipitation Measurement and Analysis
- Atmospheric chemistry and aerosols
- Remote Sensing and Land Use
- Environmental and Agricultural Sciences
- Environmental Changes in China
- Plant Water Relations and Carbon Dynamics
- Ocean Waves and Remote Sensing
- Flood Risk Assessment and Management
- Solar Radiation and Photovoltaics
- Solar and Space Plasma Dynamics
- nanoparticles nucleation surface interactions
- Geological Studies and Exploration
- Neural Networks Stability and Synchronization
- Cruise Tourism Development and Management
- Fluid Dynamics and Heat Transfer
- Wind and Air Flow Studies
- Chaos control and synchronization
- Icing and De-icing Technologies
- Atmospheric Ozone and Climate
- Oceanographic and Atmospheric Processes
- Geophysics and Gravity Measurements
Zhejiang University
2012-2024
Shanghai University of Engineering Science
2023
Dalian University of Technology
2020
Zhejiang Meteorological Bureau
2006
Abstract A case study of a convection initiation (CI) event involving mesoscale gravity wave is presented. This severe occurred in east China on 5 June 2009. High-frequency automatic weather station (AWS) data, visible satellite and Doppler radar data were combined to depict the features development several centers. The was manifested by surface pressure dip wind shift propagating westward away from early convection. propagated at speed >30 m s−1, which comparable with that previous...
Abstract In this study, the WRF Model is used to simulate torrential rainfall of Typhoon Fitow (2013) over coastal areas east China during its landfall. Data from innermost model domain are trace trajectories particles in three major 24-h accumulated centers using Lagrangian flexible particle dispersion (FLEXPART). Surface budgets and cloud microphysical as well precipitation efficiency analyzed along particles’ trajectories. The with high associated water vapor convergence, condensation,...
Abstract Decadal trends of global precipitation are examined using the Climate Prediction Center (CPC) Merged Analysis Precipitation (CMAP), Global Climatology Project (GPCP), and National Centers for Environmental (NCEP)/National Atmospheric Research (NCAR) reanalysis data. The decadal average diverge a decreasing trend CMAP data, flat GPCP an increasing data is associated with reduction in high precipitation. related to offset between increase decrease low corresponds .
Improvements to the Kessler-type parameterization of warm cloud microphysical conversion processes (also called autoconversion) are proposed based on a large number CloudSat observations between June 2006 and April 2011 over Asian land areas. The emphasis is given vertical distribution liquid water content (LWC), particularly, threshold values LWC for autoconversion. results warrant new approach numerical autoconversion in clouds. One feature this that threshold, which has been treated as...
A large number of in-situ measurements cloud-precipitation microphysical properties have been made since 1960, including particle size distribution, concentration, and liquid water content clouds rain. These contributed to considerable progress in understanding processes precipitation significant improvements parameterizations cloud microphysics numerical models. This work reviews key findings regarding over China. The total concentrations various particles vary significantly, with certain...
Abstract This study investigated the kinetic and potential energy budgets during slow (SI) rapid intensification (RI) periods of Typhoon Mujigae, which occurred in October 2015, by conducting a Weather Research Forecasting model simulation. We found that conversion between asymmetric symmetric rotational circulations lower troposphere plays pivotal role initiating difference tendency RI SI via horizontal advection process circulations. Southerly easterly environmental flows transported...
Abstract A new convective–stratiform rainfall separation scheme is developed through combination of rain types separated by surface budget using a cloud‐resolving model simulation data during TOGA COARE . Three associated with vapor convergence, upward motions throughout the troposphere, and dominant liquid microphysical processes form convective rainfall. Maximum requires precipitation efficiency 100%, but it not maximum convergence. Vapor hydrometeor convergences contribute about 40% to...
A database is established that includes microphysical properties of raindrops, cloud droplets, ice nuclei (IN), snow crystals, and the relationship between radar reflectivity (Z) rainfall rate (R), based on in situ data reported existing literature. The coverage divided into East Asia other regions (Americas, Europe, Australia, Africa), only datasets obtained over land are considered. main variables presented compared with those regions. differences two as follows. average intercept (N0)...
Abstract The three‐dimensional Weather Research and Forecasting (WRF) model is used to conduct sensitivity experiments of Typhoon Fitow in 2013 during its landfall. Surface rainfall heat budgets as well the vertical profiles stability velocity are analyzed examine physical processes responsible for radiative effects on rainfall. inclusion liquid clouds suppresses cooling cloud layers via reducing outgoing radiation ice layers, whereas it enhances through trapping less from layers. enhanced...
Abstract In this study, decadal trends of the annual amplitude global precipitation are compared in Climate Prediction Center (CPC) Merged Analysis Precipitation ( CMAP ), Global Climatology Project GPCP and National Centers for Environmental NCEP ) reanalysis data sets. The analysis reveals decreasing a flat trend data. mainly associated with increasing low minimum rate high is because balance between along equatorial oceans over subtropical oceans.
Abstract In this study, the three‐dimensional Weather Research and Forecasting model is used to conduct sensitivity experiments of Typhoon Soudelor in 2015 examine rainfall responses radiative effects cloud species. Time domain mean analysis shows that ice snow on are significantly stronger than those water raindrops. The peak appears upper troposphere (9 km). inclusion enhances cooling suppresses midtroposphere lower troposphere. enhanced suppressed midmidtroposphere reduce stability thus...
A mesoscale torrential rainfall event that occurred over eastern China in June 2013 is analyzed by using observational data. The results show a convergence line and weak convective cloud formed the northern part of Hangzhou Bay during onset event. meso-vortex appeared confluence point northeasterly flow associated with Yellow-Sea high, easterly from area, southeasterly Bay. horizontal scale 10–20 km lasted for about 1 h stable surface circulations. analysis radar retrieval reveals boundary...
Surface precipitation budget equation in a three-dimensional (3D) WRF model framework is derived.By applying the convective-stratiform partition method to surface 3D model, this study separated convective and stratiform rainfall of typhoon Fitow (2013).The separations are further verified by examining statistics vertical velocity, budget, cloud microphysical budget.Results show that water vapor convergence moistens local atmosphere offsets hydrometeor divergence, producing rainfall, while...
Accurate description of boundary layer processes is important for numerical simulations, and some model parameters in the schemes play an role simulations.The Quasi-Normal Scale Elimination (QNSE) scheme Weather Research Forecasting (WRF) version 3.1.1reverts into Mellor-Yamada-Janjić (MYJ) under unstable neutral conditions.The (A 1 , A 2 B C ) that affect turbulent mixing MYJ formulation are proportional coefficients turbulence length scales master scale.This study examines simulations...