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| 1 | Impact of meteorological factors on the incidence of childhood hand,foot,and mouth disease(HFMD)analyzed by DLNMs-based time series approach显示文摘Background:Hand,foot,and mouth disease(HFMD)has become an emerging infectious disease in China in the last decade.There has been evidence that meteorological factors can influence the HFMD incidence,and understanding the mechanisms can help prevent and control HFMD.Methods:HFMD incidence data and meteorological data in Minhang District,Shanghai were obtained for the period between 2009 and 2015.Distributed lag non-linear models(DLNMs)were utilized to investigate the impact of meteorological factors on HFMD incidence after adjusting for potential confounders of long time trend,weekdays and holidays.Results:There was a non-linear relationship between temperature and HFMD incidence,the RR of 5th percentile compared to the median is 0.836(95%CI:0.671-1.042)and the RR of 95th percentile is 2.225(95%CI:1.774-2.792),and the effect of temperature varied across age groups.HFMD incidence increased with increasing average relative humidity(%)(RR=1.009,95%CI:1.005-1.015)and wind speed(m/s)(RR=1.197,95%CI:1.118-1.282),and with decreasing daily rainfall(mm)(RR=0.992,95%CI:0.987-0.997)and sunshine hours(h)(RR=0.966,95%CI:0.951-0.980).Conclusions:There were significant relationships between meteorological factors and childhood HFMD incidence in Minhang District,Shanghai.This information can help local health agencies develop strategies for the control and prevention of HFMD under specific climatic conditions. | Hongchao Qi Yue Chen Dongli Xu Hualin Su Longwen Zhan Zhiyin Xu Ying Huang Qianshan He Yi Hu Henry Lynn Zhijie Zhang | 2018 | Infectious Diseases of Poverty2018，7，1： | 17 |
| 2 | Impacts of biomass-burning on aerosol properties of a severe haze event over Shanghai显示文摘Anthropogenic aerosols have significant impacts on the environment and human health in the Yangtze River Delta region,one of the most densely populated regions in the world.A biomass-burning plume swept across this area(Shanghai) in May 2009,leading to changes in the physical and optical properties of aerosols,which were investigated using ground-based remote sensing and in situ measurements via comparisons with dust pollution and background conditions.Experiments show that the biomass-burning plume led to an increase in the average aerosol optical depth(AOD) at 500 nm from 0.73 to 1.00(37%higher),an absorption Angstrom exponent(AAE) of 1.48,and an increase in the Angstrom exponent(α) up to 1.53.Furthermore,local dust aerosols derived from road dust and/or construction dust also led to higher values of AOD(2.68) and AAE(2.16),and a daily average value of α of 1.05.For the biomass-burning plume,the aerosol particles exhibited significant variations in short-wavelength spectra.The single scattering albedo at 670 nm decreased remarkably under the influence of the biomass-burning plume,indicating the significant absorptive ability of the biomass-burning pollution and higher ratio of absorption aerosols within the plume.Under the effects of the biomass-burning,the volume concentration of fine-mode aerosols increased significantly and the PM-fine/PM-coarse volume concentration ratio reached 12.33.This relatively large change in fine-mode particles indicates that biomass-burning has a greater impact on fine-mode aerosols than on coarse-mode aerosols. | Qianshan He Xiaoyan Zhao Jing Lu Guangqiang Zhou Hequn Yang Wei Gao Wei Yu Tiantao Cheng | 2015 | Particuology2015，13，3： | 2 |
| 3 | Transport of black carbon aerosols from non-local sources:A case study in Shanghai显示文摘Black carbon(BC) aerosol mass carried by winds of varying directions from non-local sources was estimated based on hourly measured data of BC mass concentration(C_(BC)) and meteorological parameters from January 2008 to December 2012 in Shanghai,and the relationship between annual average C_(BC) and wind speed was analyzed.The results show that the annual average C_(BC) decreased with wind speed for speeds exceeding 0.3 m/s.The relationship between the two was determined by a linear fit with correlation coefficient 0.88.Assuming BC aerosol mass of non-local sources transported by a southeast wind was zero,annual average BC concentrations(μg/m^3) carried by winds of variable direction were 1.99(southwest),1.95(west),1.15(northwest),0.54(south),0.39(north),0.01(northeast),and 0.01(east).BC aerosol mass of non-local sources transported by wind to Shanghai was about 6404.051 per year,among which the total contribution of southwest,west,and northwest winds was nearly 84%.The aerosol mass transported to Shanghai in winter accounted for 35%that of the entire year,and was greater than that of the other seasons. | Hongqiang Wang Yanming Kang Qianshan He Yonghang Chen | 2015 | Particuology2015，13，3： | 2 |
| 4 | Validation of MODIS derived aerosol optical depth over the Yangtze River Delta in China显示文摘 | Qianshan He Chengcai Li Xu Tang Huiling Li Fuhai Geng Yongli Wu | 2010 | Remote Sensing of Environment2010，，8： | 1 |
| 5 | Validation of MO-DIS derived aerosol optical depth over the Yangtze River Deltain China 显示文摘 | He Qianshan Li Chengcai Tang Xu | 2010 | Remote Sensing of Environment2010，114，： | 1 |
| 6 | Validation of MODIS derived aerosol optical depth over the Yangtze River delta in China显示文摘 | He Qianshan Li Chengcai Tang Xu | 2010 | Remote Sensing of Environmerct2010，114，： | 1 |
| 7 | Validation of MODIS Derived Aerosol Optical Depth over the Yangtze River Delta in China显示文摘 | Qianshan He Chengcai Li Tang Xu | 2010 | Remote Sensing of Environment2010，114，： | 1 |
| 8 | Accurate Shortwave Radiation Simulation with a Two-Layer Aerosol Model in Xinjiang Region显示文摘To harness the rich solar energy resources in Xinjiang Region of Northwest China,this study tries to address the issue of lack of downward surface shortwave radiation(DSSR)observations and the need to improve the accuracy of satellite retrieval and numerical simulation of DSSR under varied sky and meteorological conditions.(1)A two-layer aerosol model specific to Xinjiang was developed to capture the vertical distributions of aerosols based on multiple data sources including lidar,GPS sounding,ground meteorological observations,and profiles from the ECMWF reanalysis version 5(ERA5)data.The results show that the ERA5/PBLH(planetary boundary layer height)and ERA5/ALH(aerosol layer height)could be used to establish the two-layer aerosol model and characterize the vertical distribution of aerosols in Xinjiang Region.(2)Using the Santa Barbara Discrete Atmospheric Radiative Transfer(SBDART)model,a localized inverse model of clear-sky DSSR was established.After parameter adjustment and using the optimal combination of input parameters for DSSR simulation together with the two-layer aerosol model,the model-simulated DSSR(DSSRSBD)under clear-sky conditions improved significantly compared to the initial results,with all fitting indices greatly improved.(3)In addition,the study demonstrated that the impact of the two-layer aerosol model on DSSR was more pronounced under dust conditions than clear-sky conditions.(4)Using the localized clear-sky DSSR inversion model and its required parameters,simulations were also conducted to capture the spatiotemporal distribution of DSSR under clear-sky conditions in Xinjiang from 2017 to 2019.The annual average DSSR_(SBD)under clear-sky conditions in Xinjiang during 2017–2019 was 606.78 W m^(-2),while DSSR from CERES(DSSR_(CER))under the same conditions was generally higher(703.95 W m^(-2)).(5)It is found that satellite remote sensing products experienced data loss in high-altitude snow areas,where numerical simulation technology could serve as a valuable complement. | Guan HUANG Yonghang CHEN Qiong LIU Pengtao WANG Qianshan HE Qing HE Shuai LI Weiling SHAO Ting FAN | 2024 | Journal of Meteorological Research2024，38，1： | 0 |
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