Guicai Ning

ORCID: 0000-0003-0016-4382
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About
Contact & Profiles
Research Areas
  • Air Quality and Health Impacts
  • Climate variability and models
  • Atmospheric chemistry and aerosols
  • Urban Heat Island Mitigation
  • Meteorological Phenomena and Simulations
  • Climate Change and Health Impacts
  • Atmospheric aerosols and clouds
  • Air Quality Monitoring and Forecasting
  • Infrared Target Detection Methodologies
  • Atmospheric Ozone and Climate
  • Land Use and Ecosystem Services
  • Impact of Light on Environment and Health
  • Urban Green Space and Health
  • Tropical and Extratropical Cyclones Research
  • Infrared Thermography in Medicine
  • Cryospheric studies and observations
  • Atmospheric and Environmental Gas Dynamics
  • Geophysics and Gravity Measurements
  • Oceanographic and Atmospheric Processes
  • Solar Radiation and Photovoltaics
  • Calibration and Measurement Techniques
  • Marine and coastal ecosystems
  • Building Energy and Comfort Optimization
  • Environmental Changes in China
  • Hydrology and Drought Analysis

Nanjing University of Information Science and Technology
2023-2024

Chinese University of Hong Kong
2018-2023

Sun Yat-sen University
2021-2023

Hong Kong Polytechnic University
2022-2023

University of Hong Kong
2018-2023

Lanzhou University
2017-2022

Abstract While the changes of extreme weather and climate events have been well investigated, change compound (i.e., combinations multiple weather/climate extremes and/or hazards), which severely affect biophysical human systems, remains poorly understood. Here, we examine decadal trends subsequently (or “preconditioned”) heat‐precipitation precipitation preceded by an heat) across China during 1961–2016. We find that, on average, around one‐quarter summer over (especially western China) are...

10.1002/joc.7561 article EN International Journal of Climatology 2022-02-12

Heatwaves are consecutive hot days with devastating impacts on human health and the environment. These events may evolve across both space time, characterizing a spatiotemporally contiguous propagation pattern that has not been fully understood. Here, we track heatwaves in reanalysis datasets model simulations examine their moving patterns (i.e., distance, speed, direction) different continents periods. Substantial changes have identified from 1979 to 2020, longer persistence, traveling...

10.1126/sciadv.adl1598 article EN cc-by-nc Science Advances 2024-03-29

Abstract Near-surface atmospheric moisture is a key environmental and hydro-climatic variable that has significant implications for the natural human systems. However, high-resolution data are severely lacking fine-scale studies. Here, we develop first 1 km high spatial resolution dataset of monthly index collection in China (HiMIC-Monthly) over long period 2003~2020. HiMIC-Monthly generated by light gradient boosting machine algorithm (LightGBM) based on observations at 2,419 weather...

10.1038/s41597-024-03230-2 article EN cc-by Scientific Data 2024-04-24

Abstract. The cities of Chengdu, Deyang, and Mianyang in the northwest Sichuan Basin are part a rapidly developing urban agglomeration adjoining eastern slopes Tibetan Plateau. Heavy air pollution events have frequently occurred over these recent decades, but effects meteorological conditions on unclear. We explored weather systems winter heavy from 1 January 2006 to 31 December 2012 2014 28 February 2017. A total 10 during research period 8 took place while region was affected by dry...

10.5194/acp-18-13601-2018 article EN cc-by Atmospheric chemistry and physics 2018-09-25

Abstract Heavy PM 2.5 (particulate matter with aerodynamic diameter equal to or less than μm) pollution and urban heat island (UHI) pose increasing threats human health living environment in populated cities. However, how affects the UHI intensity (UHII) has not been fully understood. The impacts of on wintertime UHII Beijing‐Tianjin‐Hebei megalopolis China are explored during 2013–2017. results show that at time daily maximum/minimum temperature (UHII max /UHII min ) exhibits a...

10.1029/2019gl084288 article EN cc-by Geophysical Research Letters 2019-09-12

Abstract Accurate estimation of the spatiotemporal variations solar radiation is crucial for assessing and utilizing energy, one fastest‐growing most important clean renewable resources. Based on observations from 2,379 meteorological stations along with scare observations, random forest (RF) model employed to construct a high‐density network daily global (DGSR) its in China. The RF‐estimated DGSR good agreement site across China, an overall correlation coefficient ( R ) 0.95,...

10.1029/2019ea001058 article EN cc-by-nc-nd Earth and Space Science 2020-01-27

Abstract. Heatwaves (HWs) paired with higher ozone (O3) concentration at the surface level pose a serious threat to human health. Their combined modulation of synoptic patterns and urbanization remains unclear. Using 5 years summertime temperature O3 observation in Beijing, this study explored potential drivers compound HWs pollution events their public health effects. Three favorable weather were identified dominate events. These contributing enhance those conditions are characterized by...

10.5194/acp-22-6523-2022 article EN cc-by Atmospheric chemistry and physics 2022-05-20

Abstract. Human-perceived thermal comfort (known as human-perceived temperature) measures the combined effects of multiple meteorological factors (e.g., temperature, humidity, and wind speed) can be aggravated under influences global warming local human activities. With most rapid urbanization largest population, China is being severely threatened by aggravating stress. However, variations stress in at a fine scale have not been fully understood. This gap mainly due to lack high-resolution...

10.5194/essd-15-359-2023 article EN cc-by Earth system science data 2023-01-20

Abstract. Surface ozone (O3) pollution during summer (June–August) over eastern China has become more severe in recent years, resulting a co-occurrence of surface O3 and PM2.5 (particulate matter with aerodynamic diameters ≤ 2.5 µm the air) pollution. However, mechanisms regarding how synoptic weather pattern (SWP) might influence this compound remain unclear. In study, we applied T-mode principal component analysis (T-PCA) method to objectively classify occurrence four SWPs China, based on...

10.5194/acp-21-9105-2021 article EN cc-by Atmospheric chemistry and physics 2021-06-15

Abstract As one of the aridest regions in mid‐latitudes, arid Northwest China (ANC) has scarce water resources year‐round, its annual total precipitation is mainly contributed by summer extreme events, which may also cause disastrous flash floods. However, physical mechanism and climatic features events ANC are not fully understood warrant in‐depth investigations. Taking Xinjiang as an example, this study investigates underlying mechanisms long‐term trend during 1961–2019 using observational...

10.1029/2020jd034111 article EN Journal of Geophysical Research Atmospheres 2021-07-07

Compared with individual events, compound weather and climate extremes may impose more serious influences on natural systems human society, especially in populated areas. In this study, we examine the changes precipitation events that follow extremely hot within several days during 1961–2017 South China by taking Guangdong Province as an example. Additionally, assess impacts of urbanization these changes. It is found extreme are often preceded weather, average fraction 28.25%. The such even...

10.3389/feart.2021.636777 article EN cc-by Frontiers in Earth Science 2021-06-16

Abstract Heatwaves detrimentally affect human health and ecosystems. While previous studies focused on either temporal changes or spatial extents of heatwaves, their spatiotemporal contiguity propagation patterns are unclear. Here, we investigate the climatology, long-term trends, interannual variations spatiotemporally contiguous heatwaves across China during 1961 to 2018. Two distinct identified by introducing a events tracking (SCET) method k-means clustering. Type 1 mostly generate over...

10.1038/s41612-022-00313-y article EN cc-by npj Climate and Atmospheric Science 2022-11-14

Rapid increases in urban sprawl affect the observational environment around meteorological stations by changing land use/land cover (LULC) and anthropogenic heat flux (AHF). Based on remote sensing images GIS technology, we investigated impact of changes both LULC AHF induced urbanization Yangtze River Delta (YRD) during 2000–2018. Our results show that environments were significantly affected rapid expansion built-up areas subsequent increase AHF, with a clear spatiotemporal variability. A...

10.3390/rs13132624 article EN cc-by Remote Sensing 2021-07-04

To assess the health risk of PM2.5, it is necessary to accurately estimate actual exposure level population PM2.5. However, spatial distribution PM2.5 may be inconsistent with that population, making for a high-spatial-resolution and refined assessment air pollution. This study takes Yangtze River Delta (YRD) Region as an example since has high-density high pollution level. The brightness reflectance night-time light, MODIS-based (Moderate Resolution Imaging Spectroradiometer) vegetation...

10.3390/rs11232724 article EN cc-by Remote Sensing 2019-11-20

Abstract Extreme precipitation events severely affect ecosystems and human society. While most existing studies investigated either their temporal changes or spatial extent, the joint behaviors in both time space are neglected. Here, we examine different evolution patterns of spatiotemporally contiguous (SCEPEs) across China during 1997–2021 from a three‐dimensional (3D, latitude × longitude time) perspective. The SCEPEs exhibit distinct subregions. northwestern areas have relatively longer...

10.1029/2022gl098840 article EN Geophysical Research Letters 2022-08-15

Abstract Ozone suppression (OS) – negative correlation between ozone (O 3 ) and temperature above a cutoff (T x has yet to be fully understood, causing large uncertainties in future global O projection. Given China's serious air pollution population, its projection important implications on population health. The level of OS China under climate change needs better understood. We assess develop hybrid models with project using downscaled projections. In 2015–2019, ∼19% cities show OS, which...

10.1029/2021gl097090 article EN public-domain Geophysical Research Letters 2022-02-01
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