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Erratum to:Deriving Temporal and Vertical Distributions of Methane in Xianghe Using Ground-based Fourier Transform Infrared and Gas-analyzer

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Advances in Atmospheric Sciences 2024年第2期41卷 377-377页

作者： Denghui JI Minqiang ZHOU pucai wang Yang YANG Ting wang Xiaoyu SUN Christian HERMANS Bo YAO Gengchen wang Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Royal Belgian Institute for Space Aeronomy Brussels 1180Belgium University of Chinese Academy of Sciences Beijing 100049China Meteorological Observation Center China Meteorological AdministrationBeijing 100081China

“Diurnal variation of CH4 at the surface from spring to *** time units are in local time(+8 h UTC).The error bar is 1σfor all the observed hourly mean data within that season at that local time.”in the caption of Fig.8 on Page 604 should be“Diurnal variation of CH4 at the surface from spring to *** time units are in *** error bar is 1σfor all the observed hourly mean data within that season at that local time.”

关键词： winter season Infrared

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甲烷柱浓度红外高光谱遥感反演与验证

遥感学报 2024年第8期28卷 1968-1985页

作者：周敏强倪启晨王佳欣蔡兆男南卫东王普才中国科学院大气物理研究所碳中和研究中心北京100029 中国科学院大学地球与行星科学学院北京100049 中国科学院大气物理研究所香河大气综合观测试验站廊坊065400

甲烷(CH_(4))浓度变化是当前气候变化研究中的一个焦点问题。红外高光谱遥感技术已经成为探测大气CH_(4)浓度变化的重要技术手段。本文针对红外高光谱CH_(4)地基遥感反演技术,介绍了国际上重要的观测网络,包括TCCON(Total Carbon Column... 详细信息

甲烷(CH_(4))浓度变化是当前气候变化研究中的一个焦点问题。红外高光谱遥感技术已经成为探测大气CH_(4)浓度变化的重要技术手段。本文针对红外高光谱CH_(4)地基遥感反演技术,介绍了国际上重要的观测网络,包括TCCON(Total Carbon Column Observing Network),NDACC-IRWG(Network for the Detection of Atmospheric Composition Change-the Infrared Working Group)和COCCON(COllaborative Carbon Column Observing Network),讨论了这些观测网络的主要特点,包括观测仪器、波段设置、反演算法、产品特性等。针对红外高光谱CH_(4)浓度卫星遥感反演,概述了国际上的CH_(4)卫星遥感发展现状。同时,以日本GOSAT(Greenhouse gases Observing SATellite)卫星为例,探讨了卫星CH_(4)遥感地基验证工作中的关键技术,阐明了地基遥感对于卫星CH_(4)遥感产品改进的重要性。最后,利用TCCON香河站的观测资料,对最新版的TROPOMI(TROPOspheric Monitoring Instrument)卫星CH_(4)观测反演数据产品进行了地基验证,表明在华北地区TROPOMI CH_(4)柱浓度产品达到了其观测精度目标设定要求;TROPOMI观测得到的CH_(4)柱浓度年增长率要略高于TCCON的观测结果,两者相差0.263±0.172%/a;地基与卫星的差值具有季节变化特征,春季卫星的观测值大于TCCON观测值约0.3%,秋季卫星的观测值小于TCCON观测值约0.2%。

关键词：遥感甲烷柱浓度地基傅里叶光谱卫星验证 TROPOMI

Characterization of Regional Combustion Efficiency usingΔXCO:ΔXCO_(2)Observed by a Portable Fourier-Transform Spectrometer at an Urban Site in Beijing

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Advances in Atmospheric Sciences 2022年第8期39卷 1299-1315页

作者： Ke CHE Yi LIU Zhaonan CAI Dongxu YANG Haibo wang Denghui JI Yang YANG pucai wang Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of ScienceBeijing 100029China Carbon Neutrality Research Center Institute of Atmospheric PhysicsChinese Academy of ScienceBeijing 100029China University of Chinese Academy of Science Beijing 100049China

Measurements of column-averaged dry-air mole fractions of carbon dioxide and carbon monoxide,CO_(2)(XCO_(2))and CO(XCO),were performed throughout 2019 at an urban site in Beijing using a compact Fourier Transform Spectrometer(FTS)EM27/*** data set is used to assess the characteristics of combustion-related CO_(2)emissions of urban Beijing by analyzing the correlated daily anomalies of XCO and XCO_(2)(e.g.,ΔXCO andΔXCO_(2)).The EM27/SUN measurements were calibrated to a 125HR-FTS at the Xianghe station by an extra EM27/SUN instrument transferred between two *** ratio ofΔXCO overΔXCO_(2)(ΔXCO:ΔXCO_(2))is used to estimate the combustion efficiency in the Beijing region.A high correlation coefficient(0.86)betweenΔXCO andΔXCO_(2)is *** CO:CO_(2)emission ratio estimated from inventories is higher than the observedΔXCO:ΔXCO_(2)(10.46±0.11 ppb ppm^(−1))by 42.54%-101.15%,indicating an underestimation in combustion efficiency in the ***ΔXCO:ΔXCO_(2)are influenced by transportation governed by weather conditions,except for days in summer when the correlation is low due to the terrestrial biotic *** convolving the column footprint[ppm(μmol m-2 s-1)-1]generated by the Weather Research and Forecasting-X-Stochastic Time-Inverted Lagrangian Transport models(WRF-X-STILT)with two fossil-fuel emission inventories(the Multi-resolution Emission Inventory for China(MEIC)and the Peking University(PKU)inventory),the observed enhancements of CO_(2)and CO were used to evaluate the regional *** CO_(2)emissions appear to be underestimated by 11%and 49%for the MEIC and PKU inventories,respectively,while CO emissions were overestimated by MEIC(30%)and PKU(35%)in the Beijing area.

关键词： FTS remote sensing ΔXCO:ΔXCO_(2) combustion efficiency megacity

Ground-Based Atmospheric CO_(2),CH_(4),and CO Column Measurements at Golmud in the Qinghai-Tibetan Plateau and Comparisons with TROPOMI/S5P Satellite Observations

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Advances in Atmospheric Sciences 2023年第2期40卷 223-234页

作者： Minqiang ZHOU Qichen NI Zhaonan CAI Bavo LANGEROCK Jingyi JIANG Ke CHE Jiaxin wang Weidong NAN Yi LIU pucai wang Institute of Atmospheric Physics Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100049China Royal Belgian Institute for Space Aeronomy(BIRA-IASB) Brussels 1180Belgium The College of Forestry Beijing Forest UniversityBeijing 100091China Xianghe Observatory of Whole Atmosphere Institute of Atmospheric PhysicsChinese Academy of SciencesLangfang 065499China

Measurements of carbon dioxide(CO_(2)),methane(CH_(4)),and carbon monoxide(CO)are of great importance in the Qinghai-Tibetan region,as it is the highest and largest plateau in the world affecting global weather and climate *** this study,for the first time,we present CO_(2),CH_(4),and CO column measurements carried out by a Bruker EM27/SUN Fourier-transform infrared spectrometer(FTIR)at Golmud(36.42°E,94.91°N,2808 m)in August *** mean and standard deviation of the column-average dry-air mixing ratio of CO_(2),CH_(4),and CO(XCO_(2),XCH_(4),and XCO)are 409.3±0.4 ppm,1905.5±19.4 ppb,and 103.1±7.7 ppb,*** differences between the FTIR co-located TROPOMI/S5P satellite measurements at Golmud are 0.68±0.64%(13.1±12.2 ppb)for XCH_(4) and 9.81±3.48%(–10.7±3.8 ppb)for XCO,which are within their retrieval *** correlations for both XCH_(4) and XCO are observed between the FTIR and S5P satellite *** the FLEXPART model and satellite measurements,we find that enhanced CH_(4) and CO columns in Golmud are affected by anthropogenic emissions transported from North *** study provides an insight into the variations of the CO_(2),CH_(4),and CO columns in the Qinghai-Tibetan Plateau.

关键词： Ground-based FTIR greenhouse gas remote sensing TROPOMI/S5P Qinghai-Tibetan Plateau

Ground-based measurements of aerosol optical properties and radiative forcing in North China

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China Particuology 2007年第3期5卷 202-205页

作者： Hongbin Chen Xiangao Xia pucai wang Wenxing Zhang Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

In order to gain an insight into the aerosol properties and their climatic effect over the continental source regions of China, it is of significance to carry out long-term ground-based measurements of aerosol optical properties and radiative forcing. A couple of temporary and permanent Aerosol Robotic Network （AERONET） sites and three comprehensive radiative sites were established in China as a result of international cooperation in recent years. Heavy aerosol loading and significant temporal and spatial variation over North China are revealed by the AERONET data. Aerosol-induced reductions in surface radiation budget are examined on the basis of collocated observations by sun photometers and pyranometers. 2007 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V.

关键词： Aerosol Optical properties Radiative forcing

Growth Rates of Fine Aerosol Particles at a Site near Beijing in June 2013

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Advances in Atmospheric Sciences 2018年第2期35卷 209-217页

作者： Chuanfeng ZHAO Yanan LI Fang ZHANG Yele SUN pucai wang State Key Laboratory of Earth Surface Processes and Resource Ecology and College of Global Change and Earth System Science Beijing Normal University Beijing 100875 China Joint Center for Global Change Studies Beijing 100875 China Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100875 China

Growth of fine aerosol particles is investigated during the Aerosol-CCN-Cloud Closure Experiment campaign in June 2013 at an urban site near Beijing. Analyses show a high frequency （- 50%） of fine aerosol particle growth events, and show that the growth rates range from 2.1 to 6.5 nm h-1 with a mean value of - 5.1 nm h-1. A review of previous studies indicates that at least four mechanisms can affect the growth of fine aerosol particles： vapor condensation, intramodal coagulation, extramodal coagulation, and multi-phase chemical reaction. At the initial stage of fine aerosol particle growth, condensational growth usually plays a major role and coagulation efficiency generally increases with particle sizes. An overview of previous studies shows higher growth rates over megacity, urban and boreal forest regions than over rural and oceanic regions. This is most likely due to the higher condensational vapor, which can cause strong condensational growth of fine aerosol particles. Associated with these multiple factors of influence, there are large uncertainties for the aerosol particle growth rates, even at the same location.

关键词： growth rate fine aerosol particle Xianghe

XCO_2 satellite retrieval experiments in short-wave infrared spectrum and ground-based validation

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Science China Earth Sciences 2015年第6期58卷 1191-1197页

作者： ZHOU MinQiang ZHANG XingYing wang pucai wang ShuPeng GUO LiLi HU LieQun Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academic Science College of Earth Science University of Chinese Academic Science National Satellite Meteorology Center China Meteorological Administration China Isotope and Radiation Corporation Urumqi Meteorological Satellite Ground Station China Meteorological Administration

Based on the optimal estimation method, a satellite XCO2 retrieval algorithm was constructed by combining LBLRTM with VLIDORT. One-year GOSAT/TANSO observations over four TCCON stations were tested by our algorithm, and retrieval results were compared with GOSAT L2 B products and ground-based FTS measurements. Meanwhile, the influence of CO2 line mixing effect on retrieval was estimated, and the research showed that neglecting CO2 line mixing effect could result in approximately 0.25% XCO2 underestimation. The accuracy of XCO2 retrievals was similar to GOSAT L2 B products at cloud-free footprints with aerosol optical depth less than 0.3, and 1% accuracy of XCO2 retrievals can be reached based on the validation result with TCCON measurements.

关键词： carbon dioxide retrieval experiments satellite high-spectral remote sensing ground-based validation

Effects of Ocean Particles on the Upwelling Radiance and Polarized Radiance in the Atmosphere–Ocean System

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Advances in Atmospheric Sciences 2015年第9期32卷 1186-1196页

作者： SHI Chong wang pucai Teruyuki NAKAJIMA Yoshifumi OTA TAN Saichun SHI Guangyu Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of Sciences University of Chinese Academy of Sciences Earth Observation Research Center Japan Aerospace Exploration Agency 2-1-1 Sengen Japan Agency for Marine-Earth Science and Technology State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric PhysicsChinese Academy of Sciences

Based on a vector radiative transfer model of the atmosphere–ocean system,the influence of oceanic components on radiation processes,including polarization effects,was investigated in the wavelength region ranging from 0.380 to 0.865 μ*** components considered were phytoplankton,inorganic suspended material（sediment）,and colored,dissolved organic *** to their important roles in oceanic radiation processes,the sensitivity of the bidirectional reflectance to the rough ocean surface,represented by the wind velocity 10 m above the ocean surface,and aerosol,were taken into *** results demonstrated that both radiance and polarized radiance just below the ocean surface were sensitive to the change of the concentrations of the considered components,while the dependence of polarized radiance on the observation geometry was more sensitive than *** differences in the specular plane existed between the impacts of the phytoplankton and sediment on the degree of polarization just above the ocean surface at 670 *** the top of the atmosphere（TOA）,polarization was relatively insensitive to changing concentrations of ocean particles at longer ***,the radiance at the TOA in the solar plane was more sensitive to the aerosol optical thickness than wind *** contrast,wind velocity strongly influenced the radiance at the TOA in the sun glint region,while the polarization degree showed less dependence in that ***,a nonlinear optimal inversion method was proposed to simultaneously retrieve the aerosol and wind velocity using radiance measurement.

关键词： ocean particles atmosphere–ocean system radiative transfer polarization ocean color

Change of NO_2 column density over Beijing from satellite measurement during the Beijing 2008 Olympic Games

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Chinese Science Bulletin 2010年第3期55卷 308-313页

作者： YU Huan wang pucai ZONG XueMei LI Xin LU DaRen LAGEO Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Beijing Municipal Environmental Protection Bureau Beijing 100044 China

The effect of the air quality ensuring measures for the Beijing 2008 Olympic Games in reducing air pollution during the game period is assessed using the tropospheric NO2 column density retrieved from Ozone Monitoring Instrument onboard AURA satel- lite. The basic method of the assessment is the comparison of the NO2 column densities during the game period with that during the corresponding period of 2005?2007 for the Beijing area, and the comparison among Beijing and neighbouring cities Tianjin and Tangshan, which are of similar situation in air pollution of NO2 in recent years. The images of tropospheric NO2 column den- sities over Northern China during the Beijing 2008 Olympic Games show the remarkable effect of the air quality ensuring meas- ures in reducing NO2 pollution: the tropospheric NO2 column density in Beijing is much lower than that in Tianjin and Tangshan, while there were very similar values in the three large cities during the same period of the last three years. About 40% reduction in tropospheric NO2 column density over the Beijing area is obtained from the assessment during July to August, 2008, a key period of air quality ensuring measures for the Beijing 2008 Olympic Games.

关键词：北京2008年奥运会二氧化氮柱密度卫星测量空气污染游戏质量北京地区对流层