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Local and non-local sources of airborne particulate pollution at beijing——The ratio of Mg/Al as an element tracer for estimating the contributions of mineral aerosols from outside beijing

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Science china Chemistry 2005年第3期48卷 253-264页

作者： HAN Lihui1, ZHUANG Guoshun1,2,3. SUN Yele1 & WANG Zifa3.1. The Center for atmospheric Environmental Study, Department of Chemistry, beijing Normal University, beijing 100875,{3. 2. Center for atmospheric Chemistry Study, Department of Environmental Science & Engineering, Fudan University, Shanghai 20043.,{3. 3. lapc/nzc, institute of atmospheric physics, cas, beijing 10002.,{3. The Center for atmospheric Environmental Study Department of Chemistry Beijing Normal University Beijing China Center for atmospheric Chemistry Study Department of Environmental Science & Engineering Fudan University Shanghai China institute of atmospheric physics CAS LAPC/NZC Beijing China

A new element tracer technique has firstly been established to estimate the contri-butions of mineral aerosols from both inside and outside beijing. The ratio of Mg/Al in aerosol is a feasible element tracer to distinguish between the sources of inside and outside beijing. Mineral aerosol, inorganic pollution aerosol mainly as sulfate and nitrate, and organic aerosol are the major components of airborne particulates in beijing, of which mineral aerosol accounted for 3.%―67% of total suspended particles （TSP）, 10%―70% of fine particles （PM2.5）, and as high as 74% and 90% of TSP and PM2.5, respectively, in dust storm. The sources from outside beijing contributed 62% （3.%―86%） of the total mineral aerosols in TSP, 69% （52%―90%） in PM10, and 76% （59%―93.） in PM2.5 in spring, and 69% （52%―83.）, 79% （52%―93.）, and 45% （7%―79%） in TSP, PM10, and PM2.5, respectively, in winter, while only20% in summer and autumn. The sources from outside beijing contributed as high as 97% during dust storm and were the dominant source of airborne particulates in beijing. The contributions from outside Bei-jing in spring and winter are higher than those in summer, indicating clearly that it was related to the various meteorological factors.

关键词： mineral aerosol local sources non-local sources dust storm re-suspended dust element tracer technique.

Computational stability of the forced dissipative nonlinear atmospheric equations

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Chinese Science Bulletin 1999年第10期44卷 949-952页

作者： LI Jianping and CHOU Jifan LASG , institute of atmospheric physics , Chinese Academy of Sciences , beijing 100080, china Department of {3. Sciences , Lanzhou University , Lanzhou 73.000, china beijing Meteorological College, beijing 100081, china LASG Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China Department of atmospheric Sciences Lanzhou University Lanzhou China beijing Meteorological College Beijing China

A new concept of computational quasi-stability (CQS) is introduced to study the computational stability (CS) of the forced dissipative nonlinear (FDN) evolution equations. Based on the concept, the CQS criterion of difference scheme of FDN atmospheric equations is obtained. So it provides the theoretical basis for designing the computational stable difference scheme of FDN atmospheric equations.

关键词： computational stability (CS) computational quasi-stability (CQS) operator equation difference scheme forced dissipative nonlinear (FDN) equations.

2003.vs 2002: A large amplitude wintertime temperature anomaly reversion event and its anomalous atmospheric circulation

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Chinese Science Bulletin 2003年第S2期48卷 1-4页

作者： WANG Huijun nzc/LASG, institute of Atmlspheric physics, Chinese Academy of Sciences,{3.. china Chinese Acad Sci Inst Atmospher Phys NZC LASG Beijing 100029 Peoples R China

It is revealed that there happened a large am-plitude wintertime temperature anomaly reversion event(LTAR) in Northern Hemisphere high latitude regions andSouth Australia for the year 2003.versus 2002, with the mostnotable change in Eurasia, eastern North America, NorthPacific, and South Australia. The accompanying atmosphericgeneral circulation anomalies are analyzed and the dominantchanges in the circulation arc found out. The anomalouscyclonic eddies over the north Pacific and the anomalousanticyclonic eddies over North Europe that cooperate eachother are mostly linked with the event. Both anomalous eddysystems are connected with the remote teleconnection pat-terns respectively. The research also suggests the existence ofa cross-equator teleconnection pattern, namely, the NorthernPacific-Western Pacific-Australia teleconnection pattern(NPWPA). It is not only related to LTAR, but also associatedwith the temperature transition from cold episode to warmepisode in the year 2003.versus 2002 during Decem-ber-January-February.

关键词： wintertime temperature anomaly reversion event atmospheric general circulation. NPWPA.

Speciation of the elements and compositions on the surfaces of dust storm particles:The evidence for the coupling of iron with sulfur in aerosol during the long-range transport

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Chinese Science Bulletin 2005年第8期50卷 738-744页

作者： ZHANG Xingying1,2, ZHUANG Guoshun1,2,3. CHEN Jianmin2 & XUE Huaxin2 1. Center for atmospheric Environment Study, Department of Chemistry, beijing Normal University, beijing 100875,{3. 2. Center for atmospheric Chemistry Study, Department of Environ- mental Science and Engineering, Fudan University, Shanghai 20043.,{3. 3. lapc/nzc, institute of atmospheric physics, nzc/lapc, Chinese Academy of Sciences, beijing 10002.,{3. Center for atmospheric Environment Study Department of Chemistry Beijing Normal University Beijing 100875 China Center for atmospheric Chemistry Study Department of Environmental Science and Engineering Fudan University Shanghai 200433 China lapc/nzc Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China

The speciation of the elements on the surface of the particles collected during dust storm and non-dust storm in beijing and Inner Mongolia was studied by XPS. The ma- jor species of iron on the surface were oxides, sulfate, silicate, FeOOH and minor part sorbed on SiO2/Al2O3. Sulfate is the dominant species of sulfur on the surface. SiO2 and Al2O3.are the main components of Si and Al on the surface respectively. One of the most important findings was that the Fe(II) (FeS and FeSO4) produced could account for up to 44.3. and 45.6% of the total Fe on the surface in the aerosol sample collected at that night and next day of the “peak” time of the dust storm occurring on March 20, 2002, while Fe2(SO4)3. one of the Fe(III) species on the surface decreased from 67.1% to 49.5% and 48.0% respectively. Both S and Fe en- riched on the surface of aerosol particles. Fe(II) accounted for 1.3.?5.3. of total Fe in bulk aerosol samples during dust storm. These results provided strong evidence to sup- port the hypothesis of the coupling between iron and sulfur in aerosols during the long-range transport, which would have important impact on the global biogeochemical cycle.

关键词：物种形成原理 XPS 大气悬浮物 Fe-S结合粒子集合

The statistical characteristics of the atmospheric water over tropical western Pacific ' warm pool' during TOGA COARE IOP

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Chinese Science Bulletin 1997年第12期42卷 1005-1009页

作者： WEI Chong and XUAN Yuejianinstitute of atmospheric physics, Chinese Academy of Sciences,{3., china institute of atmospheric physics Chinese Academy of Sciences Fkijing China

THIS note gives the statistical analyses of continuous measurements with high time resolution(5 min)of atmospheric water(including precipitable water vapor,vertically path-integratedcloud liquid water content and rain intensity)over the tropical western Pacific at a fixed point(2°S,158°E)during TOGA COARE IOP(1992-11—1993.02).Some comparisons are madebetween these statistical results and those of the measurments obtained during previous meteo-

关键词： microwave remote sensing western Pacific ’ warm pool’ cloud liquid water water vapor tropical precipitation.

Three-dimensional decomposition method of global atmospheric circulation

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Science china Earth Sciences 2008年第3期51卷 386-402页

作者： LIU HaiTao1,2,3. HU ShuJuan4, XU Ming5 & CHOU JiFan6,7 1 State Key Laboratory of Numerical Modeling for atmospheric Sciences and Geophysical Fluid Dynamics, institute of atmospheric physics, Chinese Academy of Sciences, beijing 10002.,{3. 2 Graduate University of Chinese Academy of Sciences, beijing 100049,{3. 3.beijing Climate Center, beijing 100089,{3. 4 Department of Mathematics, Lanzhou University, Lanzhou 73.000,{3. 5 Shanghai Typhoon institute, Shanghai 20003.,{3. 6 Department of atmospheric Sciences, Lanzhou University, Lanzhou 73.000,{3. 7{3. Meteorological Administration Training Center, beijing 100089,{3. State Key Laboratory of Numerical Modeling for atmospheric Sciences and Geophysical Fluid Dynamics Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China Graduate University of Chinese Academy of Sciences Beijing China beijing Climate Center Beijing China Department of Mathematics Lanzhou University Lanzhou China Shanghai Typhoon institute Shanghai China Department of atmospheric Sciences Lanzhou University Lanzhou China china Meteorological Administration Training Center Beijing China

By adopting the idea of three-dimensional Walker, Hadley and Rossby stream functions, the global atmospheric circulation can be considered as the sum of three stream functions from a global perspective. Therefore, a m... 详细信息

关键词： three-dimensional decomposition of the global atmospheric circulation generalized Walker Hadley and Rossby stream functions existence and uniqueness vertical motion

Improved ENSO simulation in regional coupled GCM using regressive correction method

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Science china Earth Sciences 2007年第8期50卷 1258-1265页

作者： FU WeiWei1 & ZHOU GuangQing2 1 Nansen-Zhu International Research Center (nzc), institute of atmospheric physics, Chinese Academy of Sciences (cas),{3., china 2 State Key Laboratory of Numerical Modeling for atmospheric Sciences and Geophysical Fluid Dynamics (LASG), institute of At-mospheric physics, cas,{3., china Nansen-Zhu International Research Center (nzc) Institute of Atmospheric Physics Chinese Academy of Sciences (CAS) Beijing China State Key Laboratory of Numerical Modeling for atmospheric Sciences and Geophysical Fluid Dynamics (LASG) Institute of Atmospheric Physics CAS Beijing China

A regressive correction method is presented with the primary goal of improving ENSO simulation in regional coupled GCM. It focuses on the correction of ocean-atmosphere exchanged fluxes. On the basis of numerical experiments and analysis, the method can be described as follows: first, driving the ocean model with heat and momentum flux computed from a long-term observation data set; the pro-duced SST is then applied to force the AGCM as its boundary condition; after that the AGCM’s simula-tion and the corresponding observation can be correlated by a linear regressive formula. Thus the re-gressive correction coefficients for the simulation with spatial and temporal variation could be obtained by linear fitting. Finally the coefficients are applied to redressing the variables used for the calculation of the exchanged air-sea flux in the coupled model when it starts integration. This method together with the anomaly coupling method is tested in a regional coupled model, which is composed of a global grid-point atmospheric general circulation model and a high-resolution tropical Pacific Ocean model. The comparison of the results shows that it is superior to the anomaly coupling both in reducing the coupled model ‘climate drift’ and in improving the ENSO simulation in the tropical Pacific Ocean.

关键词： anomaly coupling regressive correction method regional coupled model ENSO simulation

Trend,seasonal and diurnal variations of atmospheric CO_2 in beijing

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Chinese Science Bulletin 2002年第24期47卷 2050-2055页

作者： WANG Yuesi, WANG Changke, GUO Xueqing, LIU Guangren & HUANG Yaolapc, institute of atmospheric physics, Chinese Academy of Sciences, beijing 100083.{3. Department of Chemistry, Capital Normal University, beijing 10003.,{3. lapc Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China Department of Chemistry Capital Normal University Beijing China

The concentration of atmospheric CO2 in beijing increased rapidly at a mean growth rate of 3.7%·a-1 from 1993.to 1995. After displaying a peak of (409.7±25.9) μmol·mol-1 in 1995, it decreased slowly. Both the almost stable anthropogenic CO2 source and increasing biotic CO2 sink contribute to the drop of CO2 concentration from 1995 to 2000. The seasonal variation of CO2 concentration exhibits a clear cycle with a maximum in winter, averaging (426.8± 20.6)μmol·mol-1, and a minimum in summer, averaging (3.9.1±6.1)μmol·mol-1. The seasonal variation of CO2 concentration is mainly controlled by phenology. The mean diurnal variation of atmospheric CO2 concentration for a year in beijing is highly clear: daily maximum CO2 concentration usually occurs at night, but daily minimum CO2 concentration does in the daytime, with a mean diurnal difference more than 3..7μmol·mol-1. It has been revealed that the interannual variations of atmospheric CO2 concentration in winter and autumn regulated the

关键词： atmospheric CO2 annual variation seasonal variation diurnal variation urban environment.

Trend and seasonal variations of atmospheric CH_4 in beijing

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Journal of Environmental Sciences 2000年第3期12卷 369-374页

作者： WANG Yue\|si, WANG Ming\|xing, LUO Dong\|mei, ZHENG Xun\|hua, ZHOU Li (institute of atmospheric physics, Chinese Academy of Sciences,{3., china) 中科院大气物理所北京 1 0 0 0 2

The atmospheric CH\-4 in beijing is still increasing, even though its increasing rate has significantly decreased from 1.76%/a during 1985—1989 to 0.50%/a during 1990—1997. The seasonal variation of CH\-4 concentration showed a double\|peak pattern, one peak appearing in winter and the other in summer. It is evident that the annually seasonal variations of atmospheric CH\-4 in beijing are different. From 1986 to 1997, the atmospheric CH\-4 increased by 185 ppbv, 3.% and 21% of which were due to the increase in winter and in summer, respectively. After 1993. the annually seasonal increasing rate of CH\-4 concentration in summer (due to emission from biogenic sources) is negative while the increasing rate in winter (due to emission from non\|biogenic sources) is positive about 25 ppbv/a. As a result, the increase of CH\-4 emission from non\|biogenic sources in winter is the major reason that caused the annually seasonal increasing rate from 1993.to 1997. The biogenic sources in beijing are shrinking while the non\|biogenic ones (such as fossil fuel combustion) are enlarging.

关键词： atmospheric CH\-4 increasing rate seasonal variation annually seasonal variation