Baojun Chen

ORCID: 0000-0003-4856-6196
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About
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Research Areas
  • Meteorological Phenomena and Simulations
  • Atmospheric aerosols and clouds
  • Precipitation Measurement and Analysis
  • Climate variability and models
  • Atmospheric chemistry and aerosols
  • Aeolian processes and effects
  • Research in Cotton Cultivation
  • Tropical and Extratropical Cyclones Research
  • Cryospheric studies and observations
  • Crystallization and Solubility Studies
  • Luminescence Properties of Advanced Materials
  • X-ray Diffraction in Crystallography
  • Semiconductor materials and interfaces
  • Plant Molecular Biology Research
  • Atmospheric Ozone and Climate
  • Solid-state spectroscopy and crystallography
  • Icing and De-icing Technologies
  • Osteoarthritis Treatment and Mechanisms
  • Solar Radiation and Photovoltaics
  • Plant Ecology and Soil Science
  • Surface and Thin Film Phenomena
  • Advanced NMR Techniques and Applications
  • Plant Stress Responses and Tolerance
  • Chalcogenide Semiconductor Thin Films
  • Soil Moisture and Remote Sensing

Jilin Weather Modification Office
2022-2025

China Meteorological Administration
2020-2024

Cotton Research Institute
2021-2024

Huizhou University
2024

Sichuan University
2011-2023

Chinese Academy of Agricultural Sciences
2021-2023

Chinese Academy of Meteorological Sciences
2020-2021

Nanjing University
2009-2021

Wenzhou Medical University
2021

The Synergetic Innovation Center for Advanced Materials
2020-2021

Characteristics of raindrop size distribution (DSD) during the Meiyu season are studied using ground-based disdrometer measurements carried out in eastern China (Nanjing) from 2009 to 2011. The observational spectra divided into convective and stratiform types. results show that histograms logarithm generalized intercept parameter (log10NW) mass-weighted mean diameter raindrops (Dm) negatively positively skewed, respectively, for both rain. absolute value skewness coefficient is higher rain...

10.2151/jmsj.2013-208 article EN Journal of the Meteorological Society of Japan Ser II 2013-01-01

Abstract An intercomparison study of a midlatitude mesoscale squall line is performed using the Weather Research and Forecasting (WRF) model at 1 km horizontal grid spacing with eight different cloud microphysics schemes to investigate processes that contribute large variability in simulated precipitation properties. All simulations tend produce wider area high radar reflectivity ( Z e > 45 dBZ) than observed but much narrower stratiform area. The magnitude virtual potential temperature...

10.1002/2017jd026622 article EN publisher-specific-oa Journal of Geophysical Research Atmospheres 2017-08-11

Abstract Disdrometer data measured by ground-based optical disdrometers during a midlatitude continental squall line event on 18 August 2012 in Shandong Province, eastern China, are analyzed to study characteristics of raindrop size distribution (DSD). Four simultaneously performed continuous measurements the passage convective line. The was partitioned into three regions: center, leading edge, and trailing edge. Results show distinct differences DSDs integral rainfall parameters between...

10.1175/jamc-d-15-0127.1 article EN Journal of Applied Meteorology and Climatology 2015-10-16

Abstract As part of the third Tibetan Plateau Atmospheric Scientific Experiment field campaign, raindrop size distribution (DSD) measurements were taken with a laser optical disdrometer in Naqu, China, at 4,508 m above sea level (asl) during summer months 2013, 2014, and 2015. The characteristics DSDs for five different rain rates, two types (convective stratiform), daytime nighttime rains studied. shapes averaged similar width increased rainfall intensity. Little difference was found...

10.1002/2017jd027233 article EN Journal of Geophysical Research Atmospheres 2017-10-10

Abstract In this second part of a cloud microphysics scheme intercomparison study, we focus on biases and variabilities stratiform precipitation properties for midlatitude squall line event simulated with cloud‐resolving model implemented eight schemes. Most the schemes underestimate total precipitation, mainly due to underestimation area. All frequency moderate rain rates (2–6 mm/hr), which may result from low‐biased ice number mass concentrations 0.2–2‐mm diameter particles in region....

10.1029/2018jd029596 article EN cc-by-nc-nd Journal of Geophysical Research Atmospheres 2019-01-03

Fourteen-month precipitation measurements from a second-generation PARSIVEL disdrometer deployed in Beijing, northern China, were analyzed to investigate the microphysical structure of raindrop size distribution and its implications on polarimetric radar applications. Rainfall types are classified domain median volume diameter D 0 normalized intercept parameter N w . The separation line between convective stratiform rain is almost equivalent rate at 8.6 mm h−1 reflectivity 36.8 dBZ....

10.3390/rs11121479 article EN cc-by Remote Sensing 2019-06-21

Abstract. Several recent studies have reported complete cloud glaciation induced by airborne-based glaciogenic seeding over plains. Since turbulence is an important factor controlling mixed-phase clouds, including ice initiation, snow growth, and longevity, it hypothesized that may impact on the effect. To understand role of in seeded idealized WRF large eddy simulations (LESs) flat terrain are conducted for a shallow stratiform which was observed. The results show model can reasonably...

10.5194/egusphere-2025-47 preprint EN cc-by 2025-02-06

Abstract Warm rain prevails in clean marine clouds and is one of the most abundant types precipitation world. However, warm rarely observed urban polluted atmospheric environments due to high number concentrations aerosols generally suppress occurrence rain. Three aircraft observation were used during summer Beijing area. Here, we documented processes similar shallow (Beijing) environment after cleansing air pollution by extensive on 11 September 2019. Our results showed that, compared with...

10.1029/2024jd042403 article EN other-oa Journal of Geophysical Research Atmospheres 2025-02-10

Abstract. Hail forecasting using numerical models remains a challenge due to the uncertainties and deficiencies in microphysics schemes. In this study, we assessed hail simulation performance of 2-moment Milbrandt-Yau (MY2) scheme within Weather Research Forecast (WRF) model by simulating three heavy rainfall events Meiyu systems which was rarely observed, rather than focusing on cases as done previous researches. Simulation results showed that MY2 produced noticeable these rainstorms....

10.5194/egusphere-2024-3834 preprint EN cc-by 2025-02-12

Abstract Using convection‐resolving Weather Research and Forecasting simulation, this work studies a heavy rainfall event that occurred in the Shanxi Plateau, North China on 21–22 May 2017. Of particular interest is influence of multiscale orography initiation maintenance precipitating convective system. Results showed initial convection was triggered over small‐scale Taiyue Mountain Plateau. In nighttime, with stable boundary layer, orographic gravity waves were generated by Mountain. The...

10.1029/2019jd031731 article EN Journal of Geophysical Research Atmospheres 2020-06-08

Abstract The charge structure in thunderstorms may be strongly affected by different secondary ice production (SIP) processes, but has not been well understood. In this study, the impacts of three SIP mechanisms on microphysics and electrification a squall line are investigated using model simulation, including rime‐splintering, ice‐ice collisional breakup, shattering freezing drops. parameterization mechanisms, noninductive an inductive charging implemented spectral bin microphysics....

10.1029/2023jd039303 article EN Journal of Geophysical Research Atmospheres 2024-04-27

Abstract Mixed‐phase stratiform clouds contain numerous liquid, mixed‐phase, and ice clusters, quantifying the cluster scales is potentially helpful to improve parameterizations of microphysics radiation models. However, hydrometeor clusters at different levels are not well understood. In this study, using airborne measurements a large eddy simulation, we show that turbulence plays an important role in controlling with length few hundred meters, while larger have stronger vertical variations...

10.1029/2024gl108166 article EN cc-by-nc-nd Geophysical Research Letters 2024-06-08

[1] Freezing precipitation (i.e., freezing rain or drizzle) is an extremely hazardous weather that can cause severe socioeconomic loss and compromise human safety. To better document understand the microphysics of this type precipitation, drop size spectra were collected with optical disdrometer during a event on 27 January 2008 in southern China. The distribution (DSD) characteristics, correlations between shape (μ), slope (Λ), intercept (N0) gamma distribution, relations reflectivity (Z)...

10.1029/2010jd015305 article EN Journal of Geophysical Research Atmospheres 2011-03-15

Abstract Observations during the Ice in Clouds Experiment‐Tropical (ICE‐T) field experiment show that ice particles concentration a developing deep convective clouds at level of T = −15 °C reached about 500 L −1 , is, many orders higher than ice‐nucleating particle. To simulate microphysics these clouds, 2‐D Hebrew University Cloud model (HUCM) with spectral bin was used which two main types multiplication mechanisms were included addition to Hallet‐Mossop mechanism. In first mechanism...

10.1029/2019jd031312 article EN Journal of Geophysical Research Atmospheres 2020-01-10

Cotton is an important natural fiber crop; its seeds are the main oil source. Abiotic stresses cause a significant decline in production. The WUSCHEL-related Homeobox (WOX) genes have been involved plant growth, development, and stress responses. However, functions of WOX less known cotton. This study identified 39, 40, 21, 20 Gossypium hirsutum, barbadense, arboreum, raimondii, respectively. All four cotton species could be classified into three clades, which consistent with previous...

10.3389/fgene.2022.928055 article EN cc-by Frontiers in Genetics 2022-10-12

Abstract Typhoon Saomai (2006) was simulated using the Weather Research and Forecasting (WRF) model with explicit spectral bin microphysics to investigate effects of aerosol from mainland China on intensity, structure, precipitation landfalling storm. MAR (maritime), MIX (semicontinental), CON (continental) experiments were conducted different initial concentrations. Varying concentrations had little influence storm track but resulted in pronounced deviations intensity structures. The...

10.1002/2017jd027151 article EN Journal of Geophysical Research Atmospheres 2017-10-30

Abstract The adjustment of cloud amount to aerosol effects occurs a large extent in response the effect on precipitation. Here marine boundary layer clouds were studied by analyzing dependence rain intensity measured Global Precipitation Measurement properties. We showed that detectable initiates when drop effective radius at top (r e ) exceeds 14 μm, and precipitation is strongly suppressed with increasing concentration (N d ), which contributes strong aerosols. rate increases sharply...

10.1029/2019gl086207 article EN Geophysical Research Letters 2020-03-18

Nowadays, the development of phosphors with excellent luminescent thermal stability for various applications has become a research hotspot. Therefore, Dy

10.1039/d4dt02265c article EN Dalton Transactions 2024-01-01

A cloud resolving model coupled with a spectral bin microphysical scheme was used to investigate the effects of deep convection on concentration and size distribution aerosol particles within upper troposphere. convective storm that occurred 1 December, 2005 in Darwin, Australia simulated, compared available radar observations. The results showed echo developing stage well reproduced by model. Sensitivity tests for layers at different altitudes were conducted order understand how troposphere...

10.1029/2012jd017827 article EN Journal of Geophysical Research Atmospheres 2012-10-12

Procedures for enrichment, isolation and purification of exosomes from complex biological samples are difficult, tedious, non-standardized, require bulky instrumentation such as ultracentrifugation (UC). In this article, a simple method isolating exosomes. Size-Selective Method (SSM) was established based on commercially available materials, the UC ExoQuick-TC kits (EQkit) methods were compared in terms morphology, particle size, quantity, Western Blot (WB), extraction time. Results showed...

10.1166/jbn.2019.2768 article EN Journal of Biomedical Nanotechnology 2019-03-20

Various spectroscopic properties of Yb3+-doped Y2SiO5 crystal have been extensively investigated due to its promising application in quantum information processing. However, the local structure, electronic structure Yb3+:Y2SiO5 crystal, and optical magnetic not comprehensively studied from a theoretical viewpoint. In this work, geometric structures Yb3+ that replaces two crystallographic Y3+ sites are first obtained by method density functional theory (DFT). Then, optical, electron...

10.1021/acs.inorgchem.0c01430 article EN Inorganic Chemistry 2020-08-31
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