A5039510853- Atmospheric chemistry and aerosols
- Atmospheric aerosols and clouds
- Cryospheric studies and observations
- Atmospheric Ozone and Climate
- Atmospheric and Environmental Gas Dynamics
- Climate change and permafrost
- Marine and coastal ecosystems
- Ionosphere and magnetosphere dynamics
- Geophysics and Gravity Measurements
- Climate variability and models
- Aeolian processes and effects
- Fire effects on ecosystems
- Healthcare Systems and Challenges
- Building Energy and Comfort Optimization
- Per- and polyfluoroalkyl substances research
- Remote Sensing and Land Use
- Urban Heat Island Mitigation
- Clinical Nutrition and Gastroenterology
- Meteorological Phenomena and Simulations
Lanzhou University
2022-2025
Abstract Wildfire events have recently shown a rapid increase in frequency and scale due to the warmer present-day climate; however, their potential effects on cryosphere are difficult assess. Catastrophic wildfires Australia during 2019–2020 emitted large amounts of light-absorbing particles (LAPs) atmosphere. Satellite observations indicate that these LAPs caused unprecedented snow-darkening glaciers New Zealand through long-range transport deposition, with lasting for up three months...
Abstract. Water-soluble organic carbon (WSOC) in the cryosphere can significantly influence global cycle and radiation budget. However, WSOC snowpack has received little scientific attention to date. This study reports fluorescence characteristics, absorption properties, radiative effects of based on 34 snow samples collected from sites northeastern China. A significant degree regional variability is found, with concentrations ranging 0.5±0.2 5.7±3.7 µg g−1 (average concentration: 3.6±3.2...
Northeast China is among the most polluted snow-covered regions globally due to substantial anthropogenic black carbon (BC) emissions. BC particles, upon deposition, darken snowpack and subsequently accelerate snowmelt disrupt spring water resource availability. While impact of in snow (BCS) on widely recognized, its competitive effect relative climate warming has been less studied, a critical knowledge gap given China's heavy reliance for agricultural residential use. This study, utilizing...
Abstract. The Taklamakan Desert (TD) is a major source of mineral dust emissions into the atmosphere. These particles have ability to darken surface snow on surrounding high mountains after deposition, significantly impacting regional radiation balance. However, previous field measurements been unable capture effects severe storms accurately, and their representation scales has inadequate. In this study, we propose modified remote-sensing approach that combines data from Moderate Resolution...
Abstract. The extensive snow cover across the Tibetan Plateau (TP) has a major influence on climate and water supply for over 1 billion downstream inhabitants. However, an adequate evaluation of variability in fraction (SCF) TP simulated by multiple reanalysis datasets yet to be undertaken. In this study, we used Snow Property Inversion from Remote Sensing (SPIReS) SCF dataset years (WYs) 2001–2017 evaluate capabilities eight (HMASR, MERRA2, ERA5, ERA5L, JRA55, CFSR, CRAL, GLDAS) simulating...
Abstract We quantified the combined effects of mineral dust nonsphericity and size on snow albedo reduction using MOPSMAP (Modeled optical properties ensembles aerosol particles) package SAMDS (Spectral Albedo Model for Dirty Snow) with consideration from Sahara, Greenland, San Juan Mountains, Tibetan Plateau. Results indicate that dust‐induced decreases by up to 30% as effective radii particles increase in 1–5 μm. Nonspherical enhances relative spherical 20%. Stronger enhancements are...
In this study, the total radiative effect of black carbon (BC) in both atmosphere and seasonal snowpack across snow-covered area has been investigated over Northern Hemisphere.
Abstract Australia experienced record‐breaking wildfires during 2019–2020, which emitted large amounts of carbonaceous aerosols (CAs) to the atmosphere. In this study, we explored atmospheric dynamics and thermodynamic mechanism long‐range transport CAs November 2019–February 2020. The results indicate that had a ternary advective spreading pattern across Pacific Ocean in Southern Hemisphere (SH), influenced mainly by westerlies anticyclonic systems. Upward vertical motion over convergence...
Light-absorbing particles (LAPs) deposited on snow can significantly reduce surface albedo and contribute to positive radiative forcing. This study firstly estimated attributed the spatio-temporal variability in forcing (RF) of LAPs over northern hemisphere during snow-covered period 2003–2018 by employing Moderate Resolution Imaging Spectroradiometer (MODIS) data, coupled with atmospheric transfer modelling. In general, RF for shows a large spatial whole areas periods, highest value (12.7 W...
Abstract The upper-tropospheric carbonaceous aerosol layer (TCAL) represents the increase of aerosols in upper-troposphere. It was first discovered over Asia but found this study to also occur South America and Africa. TCALs three regions typically exist during strong deep convection season, with Asian, American, African showing peak intensity July–August, October–December, November–December, respectively. Over Asia, TCAL has highest altitude widest spread due strongest upper-troposphere...
Abstract Black carbon in snow (BCS) is a crucial parameter Earth System modeling, as it influences global radiative balance. Here, simulated BCS from Coupled Model Intercomparison Project Phase 5 and 6 (CMIP5 CMIP6) that provided model output were evaluated. In comparison with observations, CMIP5/6 models successfully reproduced long‐term historical trends linked to human activities, but struggled capturing decadal variability caused by natural climate variability. CMIP6 NorESM2‐MM,...
Abstract. The extensive snow cover across the Tibetan Plateau (TP) regions has a major influence on climate and water supply for over one billion downstream inhabitants. However, an adequate evaluation of fraction (SCF) variability TP simulated by global multiple reanalysis datasets yet to be undertaken. In this study, we examined eight SCF using Snow Property Inversion from Remote Sensing (SPIReS) product spanning period 2001–2020. results reveal that HMASR generated best simulations...
Abstract. Although water-soluble organic carbon (WSOC) in the cryosphere can significantly influence global cycle and radiation budget, WSOC snowpack has received little scientific attention to date. This study reports fluorescence characteristics, absorption properties, radiative effects of based on 34 snow samples collected from sites northeastern China. Sampling were divided into five groups, comprising southeastern Inner Mongolia (SEIM), (NEIM), south China (SNC), north (NNC), Changbai...
Black carbon in snow (BCS) has a significant impact on global climate and is an important component of Earth system modeling. Here, we provide comprehensive evaluation BCS simulations the Coupled Model Intercomparison Project Phase 6 (CMIP6) its radiative forcing scale. Overall, multi-model mean generally captures characteristics spatial patterns, with maximum concentrations East Asia Tibetan Plateau (~120 ng·g−1), lowest Antarctica (~0.05 ng·g−1). The all CMIP6 individual models exhibit...
The tropopause aerosol layer (TAL) represents the increase of aerosols in tropopause. It was first discovered over Asia but found this study to also occur South America and Africa owing combined effects monsoon dynamics pollutant emissions. Over Asia, TAL has highest altitude widest spread due strong deep convection upper troposphere anticyclonic system there. intensity is heavy Anthropogenic pollution from India western China produces two Asian centers, whereas widespread wildfires result...
Abstract. The Taklamakan Desert (TD) is a major source of mineral dust emissions into the atmosphere. These particles have ability to darken surface snow on surrounding high mountains after deposition, significantly impacting regional radiation balance. However, previous field measurements been unable capture effects severe storms accurately, and their representation scales has inadequate. In this study, we propose modified remote-sensing approach that combines data from Moderate Resolution...