A5001357521- Atmospheric chemistry and aerosols
- Air Quality and Health Impacts
- Climate variability and models
- Atmospheric aerosols and clouds
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Air Quality Monitoring and Forecasting
- Meteorological Phenomena and Simulations
- Fire effects on ecosystems
- Calibration and Measurement Techniques
- Cryospheric studies and observations
- Plant responses to elevated CO2
- Pain Mechanisms and Treatments
- Tropical and Extratropical Cyclones Research
- Climate change and permafrost
- Botulinum Toxin and Related Neurological Disorders
- Remote Sensing and Land Use
- Menopause: Health Impacts and Treatments
- Fire dynamics and safety research
- Menstrual Health and Disorders
- Plant Water Relations and Carbon Dynamics
- Climate change impacts on agriculture
- Pharmaceutical and Antibiotic Environmental Impacts
- Analytical chemistry methods development
- Geochemistry and Elemental Analysis
Qingdao University
2025
Affiliated Hospital of Qingdao University
2025
Princeton University
2020-2024
Princeton Public Schools
2024
Center For Policy Research
2024
NOAA Geophysical Fluid Dynamics Laboratory
2020-2022
National Oceanic and Atmospheric Administration
2022
Peking Union Medical College Hospital
2022
Chinese Academy of Medical Sciences & Peking Union Medical College
1996-2022
Tsinghua University
2014-2019
A peripheral mononeuropathy was produced in adult rats by placing loosely constrictive ligatures around the common sciatic nerve. The postoperative behavior of these indicated that hyperalgesia, allodynia and, possibly, spontaneous pain (or dysesthesia) were produced. Hyperalgesic responses to noxious radiant heat evident on second day and lasted for over 2 months. chemogenic also present. presence inferred from nocifensive evoked standing an innocuous, chilled metal floor or innocuous...
Abstract A regional haze with daily PM 2.5 (fine particulate matters diameters less than µm) exceeding 500 µg/m 3 lasted for several days in January 2013 over North China, offering an opportunity to evaluate models. Observations show that inorganic aerosols (sulfate, nitrate, and ammonium) are the largest contributor during period, while sulfate shows enhancement ratio of 5.4 from clean period. The nested‐grid GEOS‐Chem model reproduces distribution simulates up 364 maximum . Yet on average,...
Estimating exposures to PM2.5 within urban areas requires surface concentrations at high temporal and spatial resolutions. We developed a mixed effects model derive daily estimations of levels in Beijing, using the 3 km resolution satellite aerosol optical depth (AOD) calibrated by newly available high-density measurements. The accounts for variations AOD-PM2.5 relationships shows good performance predictions (R2 0.81–0.83) cross-validations 0.75–0.79). Satellite derived population-weighted...
Abstract Despite the importance of precipitation and moisture transport over Tibetan Plateau for glacier mass balance, river runoff local ecology, changes in these quantities remain highly uncertain poorly understood. Here we use observational data model simulations to explore close relationship between summer rainfall variability southwestern (SWTP) that central-eastern India (CEI), which exists despite separation two regions by Himalayas. We show this is maintained primarily ‘up-and-over’...
SignificanceRecord-setting fires in the western United States over last decade caused severe air pollution, loss of human life, and property damage. Enhanced drought increased biomass a warmer climate may fuel larger more frequent wildfires coming decades. Applying an empirical statistical model to projected by Earth System Models including climate-ecosystem-socioeconomic interactions, we show that fine particulate pollution US Pacific Northwest could double triple during late summer fall...
Climate models show a conspicuous summer warm and dry bias over the central United States. Using results from 19 climate in Coupled Model Intercomparison Project Phase 5 (CMIP5), we report persistent dependence of on with precipitation deficit leading this region. The is associated widespread failure capturing strong rainfall events U.S. A robust linear relationship between projected warming present-day enables us to empirically correct future temperature projections. By end 21st century...
Abstract. Extreme particulate matter (PM) air pollution of January 2013 in China was found to be associated with an anomalous eastward extension the Siberian High (SH). We developed a position index (SHPI), which depicts mean longitudinal SH, as new indicator large-scale circulation pattern that controls wintertime quality China. This SHPI explains 58 % (correlation coefficient 0.76) interannual variability aerosol optical depth (AOD) retrieved by MODIS over North (NC) during 2001–2013. By...
Abstract. Drought is a recurring extreme of the climate system with well-documented impacts on agriculture and water resources. The strong perturbation drought to land biosphere atmospheric cycle will affect composition, nature extent which are not well understood. Here we present observational evidence that US air quality significantly correlated severity. Severe droughts during period 1990–2014 were found associated growth-season (March–October) mean enhancements in surface ozone PM2.5 3.5...
Abstract. The Bermuda High (BH) quasi-permanent pressure system is the key large-scale circulation pattern influencing summertime weather over eastern and southern US. Here we developed a multiple linear regression (MLR) model to characterize effect of BH on year-to-year changes in monthly-mean maximum daily 8 h average (MDA8) ozone Houston–Galveston–Brazoria (HGB) metropolitan region during June, July, August (JJA). indicators include longitude western edge (BH-Lon) intensity index (BHI)...
Wildfire activity has increased in the US and is projected to accelerate under future climate change. However, our understanding of impacts change on wildfire smoke health remains highly uncertain. Here we quantify mortality burden due fine particulate matter (PM2.5) We construct an ensemble statistical machine learning models that link PM2.5), empirically estimate PM2.5-mortality relationships using georeferenced data all recorded deaths from 2006 2019. project climate-driven increases...
Severe PM
Abstract We present a variable‐resolution global chemistry‐climate model (AM4VR) developed at NOAA's Geophysical Fluid Dynamics Laboratory (GFDL) for research the nexus of US climate and air quality extremes. AM4VR has horizontal resolution 13 km over US, allowing it to resolve urban‐to‐rural chemical regimes, mesoscale convective systems, land‐surface heterogeneity. With gradually reducing 100 Indian Ocean, we achieve multi‐decadal simulations driven by observed sea surface temperatures 50%...
Abstract Using observations and model simulations (ESM4.1) during 1988–2018, we show large year‐to‐year variability in western U.S. PM 2.5 pollution caused by regional distant fires. Widespread wildfires, combined with stagnation, summer 2017 2018 to exceed 2 standard deviations over long‐term averages. ESM4.1 a fire emission inventory constrained satellite‐derived radiative energy aerosol optical depth captures the observed surface means extremes above 35 μg/m 3 air quality standard....
Abstract. SO2 emission control has been one of the most important air pollution policies in China since 2000. In this study, we assess regional differences efficiencies through modeling analysis four scenarios emissions, all which aim to reduce national total emissions by 8% or 2.3 Tg below 2010 level, target set current twelfth Five-Year Plan (FYP; 2011–2015), but differ spatial implementation. The GEOS-Chem chemical transport model is used evaluate efficiency each scenario on basis impact...
Abstract As an integral part of the South Asian summer monsoon system, low‐pressure systems (LPSs) bring large amounts precipitation to agrarian north and central India during their passage across subcontinent. In this study, we investigate role LPSs in supplying moisture from southwestern Tibetan Plateau (SWTP) quantify contribution these rainfall over SWTP. The results show that more than 60% total SWTP is related LPS occurrence. are associated with a 15% rise average daily 10% rainy days...
Abstract This study investigates the impacts of 2011 severe drought in southern United States on ground-level fine aerosol (PM2.5) concentrations summer. The changes surface and planetary boundary layer (PBL) budget PM2.5 between June 2010 (near-normal rainfall) (severe drought) are quantified using observations GEOS-Chem model. Observations show an average enhancement 26% (p < 10−4) total over U.S. (SUS) region during drought, which is largely attributed to a ~120% increase organic...
Multiple studies have reported a shift in the trend of warm season rainfall over arid eastern-central Asia (AECA) around turn new century, from increasing second half twentieth century to decreasing during early years twenty-first. Here, closer look based on multiple precipitation datasets reveals important regional disparities these changes. Warm-season increased both basin areas and mountain ranges 1961-1998 due enhanced moisture flux convergence associated with changes large-scale...
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...