A5025957875- Atmospheric Ozone and Climate
- Atmospheric chemistry and aerosols
- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Atmospheric aerosols and clouds
- Impact of Light on Environment and Health
- Cryospheric studies and observations
- Arctic and Antarctic ice dynamics
- Municipal Solid Waste Management
- Urban Green Space and Health
- Ionosphere and magnetosphere dynamics
- Microplastics and Plastic Pollution
- Hydrology and Drought Analysis
- Land Use and Ecosystem Services
- Recycling and Waste Management Techniques
Lanzhou University
2021-2024
Beijing Normal University
2018-2019
Institute of Remote Sensing and Digital Earth
2018-2019
State Key Laboratory of Remote Sensing Science
2018-2019
Abstract In this review, instead of summarizing all the advances and progress achieved in stratospheric research, main new developments stratosphere-troposphere coupling chemistry-climate interactions are summarized, some outstanding issues grand challenges discussed. A consensus has been reached that state is an important source improving predictability troposphere on sub-seasonal to seasonal (S2S) time scales beyond. However, applying signals operational S2S forecast models remains a...
To bridge the gap in understanding soil–air microplastic emissions, here we studied transfer mechanism of microplastics with laboratory simulations using particles varying size from 1 to 5000 μm. Our findings indicate that and shape together soil type moisture levels are major determinants enrichment ratio (ER) dust, overshadowing role polymer types. Notably, pellets larger than 20 μm do not enrich while fibers, even those as large 500–5000 length, dust. Based on our ER measurement, global...
Extreme precipitation events, which have intensified with global warming over the past several decades, will become more intense in future according to model projections. Although many studies been performed, occurrence patterns for extreme events and periods China remain unresolved. Additionally, few explained how developed 58 years they evolve next 90 as becomes much serious. In this paper, we evaluated spatiotemporal characteristics of using indices frequency, quantity, intensity,...
Worldwide urbanization leads to ecological changes around urban areas. However, few studies have quantitatively investigated the impacts of on vegetation coverage so far. As an important indicator measuring regional environment change, fractional cover (FVC) is widely used analyze in In this study, basis a partial derivative model, we quantified effect temperature, precipitation, radiation, and represented as nighttime light Beijing–Tianjin–Hebei (BTH) region during its period rapid resident...
Abstract Volcanic and wildfire events between 2014 2022 injected ∼3.2 Tg of sulfur dioxide 0.8 smoke aerosols into the stratosphere. With injections at higher altitudes lower latitudes, simulated stratospheric lifetime 2014–2022 is about 50% longer than volcanic 2005–2013 injections. The global mean effective radiative forcing (ERF) −0.18 W m −2 , ∼40% ERF period 1991–1999 with a large‐magnitude eruption (Pinatubo). Our climate model suggests that generate ∼60% more negative sulfate per unit...
Abstract Approximately 150 Tg of water vapor and 0.42 sulfur dioxide were injected directly into the stratosphere by January 2022 Hunga volcanic eruption, which represents largest injection in satellite era. A comparison numerical simulations to balloon‐borne observations water‐rich plume suggests that particle coagulation contributed aerosol's effective dry radius increase from 0.2 μm February around 0.4 March. Our model stratospheric aerosol is persistently perturbed for years moderate...
Abstract The radiative forcing (RF) of volcanic sulfate is well quantified. However, the RF pyrocumulonimbus (pyroCb) smoke with absorbing carbonaceous aerosols has not been considered in climate assessment reports. With Community Earth System Model, we studied two record‐breaking wildfire events, 2017 Pacific Northwest Event (PNE) and 2019–2020 Australian New Year event (ANY), that perturbed stratospheric chemistry earth's radiation budget. We calculated a global annual‐mean effective (ERF)...
Abstract The Pinatubo eruption in 1991 injected 10–20 Tg SO 2 into the stratosphere, which formed sulfate aerosols through oxidation. Our modeling results show that volcanic heating significantly perturbs heterogeneous and homogeneous chemistry including NO x HO catalytic cycles tropical stratosphere. simulated chemical ozone tendency is positive at 20 mb while negative 10 tropics. of same magnitude as dynamical caused by accelerated upwelling, but with opposite sign. study finds due to...
Abstract. The 2022 Hunga volcanic eruption injected a significant amount of water vapor and moderate sulfur dioxide into the stratosphere causing observable responses in climate system. We have developed model-observation comparison project to investigate evolution aerosols, their impacts on atmospheric dynamics, chemistry, climate, using several state-of-the-art chemistry models. goals are: 1. Evaluate current chemistry-climate models quantify performance observations; 2. Understand Earth...
Abstract. The tropical western Pacific (TWP) is a preferential area of air uplifting from the surface to upper troposphere. A significantly intensified upward motion through troposphere over TWP in boreal wintertime (November March following year, NDJFM) has been detected using multiple reanalysis datasets. at rates 8.0 ± 3.1 % per decade and 3.6 3.3 NDJFM 150 hPa 1958 2017, JRA55 ERA5 datasets, while MERRA-2 data show 7.5 7.1 for period 1980–2017. Model simulations Whole Atmosphere...
Abstract Stratospheric volcanic aerosols can affect the global radiative balance and stratospheric composition. In this study, we analyze ensemble experiments with an interactive aerosol microphysical general circulation model, designed to assess climate forcing from large‐magnitude explosive eruptions in tropics northern extratropics. Previous studies have generally identified a lower extratropical shorter lifetime of sulfate aerosols. However, our study finds that both effective (ERF)...
Abstract. The tropical western Pacific (TWP) is a preferential area of air uplifting from the surface to upper troposphere. A significantly intensified upward motion through troposphere over TWP in boreal wintertime (November March next year) has been detected 1958 2017 using reanalysis datasets. Model simulations Whole Atmosphere Community Climate Model, version 4 (WACCM4) suggest that warming global sea temperatures (SSTs), particularly SSTs, play dominant role intensification by...