A5055021236- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Atmospheric Ozone and Climate
- Cryospheric studies and observations
- Meteorological Phenomena and Simulations
- Climate variability and models
- Arctic and Antarctic ice dynamics
- Air Quality Monitoring and Forecasting
- Air Quality and Health Impacts
- Atmospheric and Environmental Gas Dynamics
- Climate change and permafrost
- Icing and De-icing Technologies
- Precipitation Measurement and Analysis
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Methane Hydrates and Related Phenomena
- Education, Safety, and Science Studies
- Advanced Computational Techniques and Applications
- Wind Energy Research and Development
- Internet of Things and Social Network Interactions
- Advanced Sensor and Control Systems
- Microgrid Control and Optimization
- Energy and Environmental Systems
- Aeolian processes and effects
- Energy and Environment Impacts
Texas A&M University
2020-2024
Tianjin University
2024
Mitchell Institute
2024
Prairie View A&M University
2024
Institute for Learning Innovation
2024
Florida Agricultural and Mechanical University
2024
Beijing Normal University
2023
Tsinghua University
2017-2021
Northwest Normal University
2020-2021
Wuhan University
2019
Abstract A team effort to develop a Community Integrated Earth System Model (CIESM) was initiated in China 2012. The model based on NCAR (Version 1.2.1) with several novel developments and modifications aimed overcome some persistent systematic biases, such as the double Intertropical Convergence Zone problem underestimated marine boundary layer clouds. Aerosols' direct indirect effects are prescribed using MACv2‐SP approach data sets. spin‐up of 500‐year preindustrial simulation three...
The Shiyang River Basin is a typical arid watershed in Northwest China. Scientific understanding of the driving mechanism runoff change basis scientific utilization water resources and regional sustainable development. In this study, changes at different time scales were analyzed for period 1960–2018, impacts climate variability human activities on investigated middle lower reaches (SRB). A combination mutation analysis human-designed was adopted to divide study into baseline variation...
Abstract. Mixed-phase clouds are frequently observed in high-latitude regions and have important impacts on the surface energy budget regional climate. Marine organic aerosol (MOA), a natural source of emitted over ∼ 70 % Earth's surface, may significantly modify properties radiative forcing mixed-phase clouds. However, relative importance MOA as ice-nucleating particles (INPs) comparison to mineral dust, MOA's effects cloud condensation nuclei (CCN) INPs still open questions. In this study,...
Abstract. Dust particles, serving as ice-nucleating particles (INPs), may impact the Arctic surface energy budget and regional climate by modulating mixed-phase cloud properties lifetime. In addition to long-range transport from low-latitude deserts, dust in can originate local sources. However, importance of high-latitude (HLD) a source INPs (compared dust, LLD) its effects on clouds are overlooked. this study, we evaluate contribution loading INP population HLD six LLD regions implementing...
Abstract. The Three-River Source Region (TRSR), which is known as “China's Water Tower” and affects the water resources security of 700 million people living downstream, has experienced significant hydrological changes in past few decades. In this work, we used an extended variable infiltration capacity (VIC) land surface hydrologic model (VIC-Glacier) coupled with degree-day factor algorithm to simulate runoff change TRSR during 1984–2018. VIC-Glacier performed well TRSR, Nash–Sutcliffe...
Abstract Measured ice crystal number concentrations are often orders of magnitude higher than the nucleating particles, indicating existence secondary production (SIP) in clouds. Here, we present first study to examine global importance SIP through droplet shattering during freezing rain, ice‐ice collision fragmentation, and rime splintering, using a climate model. Our results show that happens quite uniformly two hemispheres dominates formation moderately cold clouds with temperatures...
Abstract. For decades, measured ice crystal number concentrations have been found to be orders of magnitude higher than ice-nucleating particle in moderately cold clouds. This observed discrepancy reveals the existence secondary production (SIP) addition primary nucleation. However, importance SIP relative nucleation remains highly unclear. Furthermore, most weather and climate models do not represent processes well, leading large biases simulated cloud properties. study demonstrates a first...
Abstract India as a hotspot for air pollution has heavy black carbon (BC) and dust (DU) loadings. BC been identified to significantly impact the Indian climate. However, whether BC-climate interactions regulate DU during premonsoon season is unclear. Here, using long-term Reanalysis data, we show that positively correlated northern while negatively southern BC. We further identify mechanism of BC-dust-climate revealed COVID-19. reduction in due lockdown decreases solar heating atmosphere...
Abstract. We examine differences among reanalysis high-cloud products in the tropics, assess impacts of these on radiation budgets at top atmosphere and within tropical upper troposphere lower stratosphere (UTLS), discuss their possible origins context models. focus ERA5 (fifth-generation European Centre for Medium-range Weather Forecasts – ECMWF reanalysis), ERA-Interim (ECMWF Interim Reanalysis), JRA-55 (Japanese 55-year MERRA-2 (Modern-Era Retrospective Analysis Research Applications,...
Abstract We investigated the ice nucleation activities of humic‐like substances (HULIS), an important component organic aerosol (OA), derived from atmospheric and biomass burning aerosols, produced aqueous‐phase chemical reactions. Respective HULIS can effectively trigger heterogeneous IN under mixed‐phase cloud conditions. active entities (IAE) were aggregates in size between 0.02 0.10 μm. At −20°C, IAE numbers per unit mass varied 213 to 8.7 × 10 4 mg −1 . Such results different than those...
Abstract Global climate models (GCMs) are challenged by difficulties in simulating cloud phase and radiative effect over the Southern Ocean (SO). Some of new‐generation GCMs predict too much liquid little ice mixed‐phase clouds. This misrepresentation results weaker negative feedback SO a higher sensitivity. Based on model comparison with observational data obtained during Cloud Radiation Aerosol Transport Experimental Study, this study addresses key uncertainty Community Earth System Model...
Abstract Ice and mixed‐phase cloud representation simulation in global climate models are challenging with large uncertainties biases. Sharing similar growth paths, no distinct separation exists nature between ice snow. Different from conventional microphysics schemes separating snow, a single prognostic category is used to represent the whole spectrum of solid hydrometeors. Instead using fixed physical properties for separate classes, e.g., mass, area, fall velocity, we consider particle...
Abstract A squall line on 22 May 2014 during the Southern China Monsoon Rainfall Experiment period is simulated with four bulk microphysical parameterizations (BMPs) using Weather Research and Forecasting (WRF) model. Although most BMPs are able to capture basic features of line, movement, morphology, especially length lines differ significantly among BMPs. Morrison scheme tends simulate a slower moving weaker cold pool better trailing stratiform cloud precipitation due smaller snow fall...
Abstract Previous studies have noticed that the Coupled Model Intercomparison Project Phase 6 (CMIP6) models with a stronger cooling from aerosol‐cloud interactions (ACI) also an enhanced warming positive cloud feedback, and these two opposing effects are counter‐balanced in simulations of historical period. However, reasons for this anti‐correlation less explored. In study, we perturb ice microphysical processes to obtain liquid varying amounts Earth System Models (ESMs). We find model...
Abstract. A discrepancy of up to 5 orders magnitude between ice crystal and nucleating particle (INP) number concentrations was found in the measurements, indicating potentially important role secondary production (SIP) clouds. However, interactions primary SIP processes their relative importance remain unexplored. In this study, we implemented five different nucleation schemes as well physical representations (i.e., droplet shattering during rain freezing, ice-ice collisional break-up, rime...
Abstract Deep convective clouds and associated anvils exert opposite radiative effects. The impact of different aerosol types on these two categories remains a major challenge in understanding aerosol‐cloud interactions. Using 11‐year satellite retrievals, we find that cloud top height (CTH) ice fraction deep anvil cirrus identified by Cloud‐Aerosol Lidar with Orthogonal Polarization increase small loadings level off or even decrease further increase. Compared continental aerosols, CTH...
Abstract. Aerosol particles are an important part of the Earth system, but their concentrations spatially and temporally heterogeneous, as well variable in size composition. can interact with incoming solar radiation outgoing long wave radiation, change cloud properties, affect photochemistry, impact surface air quality, when deposited albedo snow ice, modulate carbon dioxide uptake by land ocean. High aerosol at represent public health hazard. There substantial datasets describing...
Abstract A double‐moment version of the SBU‐YLIN cloud microphysical scheme in WRF is introduced. It predicts mass and number mixing ratios droplet, rain, ice, precipitating ice. In addition, a physical processes, like rain evaporation, collection between snow are also optimized new scheme. The evaluated compared with original one‐moment for squall line case. We found that approach gives better representation which critical development, morphology, evolution simulated line, especially...
Abstract Snowstorms cause more damage to the livelihoods and livestock of than 2 million herders (~80% total population) on Tibetan Plateau any other natural disaster. In this study, we investigate an extreme snowstorm over southwestern (SWTP) that occurred 18–21 September 2008. We explore sources transport pathways moisture storm using multiple data sets a series regional model simulations. The results show from dynamical coupling between upper‐level trough concurrent low‐pressure system...
Abstract Various infrastructure vulnerabilities and the unprecedented weather across Texas in early 2021, led to state's ERCOT grid near complete collapse. This resulted millions of people losing power for days subfreezing temperatures more than 200 their lives. Therefore, need implement a reliable backup source energy that population can use order avoid immense suffering due increase abnormal climate patterns is crucial. The last outage February 2021 left massive economic damage, estimated...
Abstract High‐latitudinal mixed‐phase clouds significantly affect Earth's radiative balance. Observations of cloud and properties from two field campaigns in the Southern Ocean Antarctica were compared with global climate model simulations. A cyclone compositing method was used to quantify “dynamics‐cloud‐radiation” relationships relative extratropical centers. show larger asymmetry between western eastern sectors at McMurdo Macquarie Island. Most observed quantities are higher (i.e.,...
Abstract Enabling the rational use of energy and realization “dual carbon goals” across China will require systematic analysis temporal spatial changes in surface wind speed (SWS), determination key factors influencing SWS, quantification resources. We investigated SWS their potential impact on resources using daily data from meteorological observations based power density (WPD) during 1961–2021. The were related to atmospheric circulation, friction (urbanization vegetation changes), aerosol...
Abstract Snowfall on the Tibetan Plateau (TP) is crucially important to hydrological cycle and glacier acceleration over TP surroundings. Climate weather models are challenged by biases uncertainties in representing microphysical characteristics of snowfall TP. In order bridge gaps our understanding southeastern (SETP), an integrated systematic measurement conducted at South‐East Station during two winters 2022–2023. It first time conduct a long‐term SETP. The major objective this campaign...