Atmospheric Environment. Part A. General Topics最新文献_第8页

The effect of specimen size, shape, and orientation on dry deposition to galvanized steel surfaces 试样尺寸、形状和取向对干沉积到镀锌钢表面的影响

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90401-J

John W. Spence, Frederick W. Lipfert, Steven Katz

{"title":"The effect of specimen size, shape, and orientation on dry deposition to galvanized steel surfaces","authors":"John W. Spence, Frederick W. Lipfert, Steven Katz","doi":"10.1016/0960-1686(93)90401-J","DOIUrl":"https://doi.org/10.1016/0960-1686(93)90401-J","url":null,"abstract":"<div><p>Galvanized steel specimens varying in size, shape, orientation angle and previous exposure history (weathered specimens) were exposed at Research Triangle Park, NC, in the absence of natural precipitation. The soluble corrosion products were assumed to represent the effects of dry deposition of airborne substances. The statistical analysis of their variability in relation to atmospheric conditions suggested that these substances included sulfur dioxide, nitric acid, hydrochloric acid, and calcium (presumably from coarse particles). The specimen characteristic most influencing inferred dry deposition was previous exposure history. Deposition of gases depended on surface condition (wetness), wind speed, temperature, and to a lesser extent, orientation angle. Deposition of particles depended on orientation angle. Loss of soluble zinc from specimens varied with specimen size to the −0.2 power, even though Reynolds numbers based on average wind speeds and specimen length were well below those classically expected to produce turbulent flow.</p></div>","PeriodicalId":100139,"journal":{"name":"Atmospheric Environment. Part A. General Topics","volume":"27 15","pages":"Pages 2327-2336"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0960-1686(93)90401-J","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91756239","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 11

Mesometeorological cycles of air pollution in the Iberian Peninsula 伊比利亚半岛空气污染的中气象学循环

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90420-4

James P. Lodge Jr.

引用次数: 0

Air entrainment of particles from a flat plate 从平板上夹带微粒的空气

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90414-T

N. Dombrowski , E.A. Foumeny , D.B. Ingham , Y.D. Qi

引用次数: 2

Scavenging of sub-micrometre aerosol particles by water drops 用水滴清除亚微米气溶胶颗粒

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90039-2

M.A. Byrne , S.G. Jennings

引用次数: 49

A numerical scheme for the integration of the gas-phase chemical rate equations in three-dimensional atmospheric models 三维大气模型中气相化学速率方程积分的数值格式

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90044-Y

Wanmin Gong , Han-Ru Cho

引用次数: 73

The relationship between the methane seasonal cycle and regional sources and sinks at Tae-ahn Peninsula, Korea 泰安半岛甲烷季节循环与区域源汇关系

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90041-V

E.J. Dlugokencky , J.M. Harris , Y.S. Chung , P.P. Tans , I. Fung

引用次数: 22

The effect of specimen size, shape, and orientation on dry deposition to galvanized steel surfaces 试样尺寸、形状和取向对干沉积到镀锌钢表面的影响

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90401-J

J. Spence, F. Lipfert, Steven Katz

引用次数: 11

The sensitivity of regionally averaged O3 and SO2 concentrations to ADOM dry deposition velocity parameterizations 区域平均O3和SO2浓度对ADOM干沉积速度参数化的敏感性

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90054-3

J. Padro, K.J. Puckett, D.N. Woolridge

引用次数: 4

An intercomparison of two chamber methods for the determination of emission of nitric oxide from soil 测定土壤中一氧化氮排放的两种腔室法的比较

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90040-6

E.J. Williams , E.A. Davidson

{"title":"An intercomparison of two chamber methods for the determination of emission of nitric oxide from soil","authors":"E.J. Williams , E.A. Davidson","doi":"10.1016/0960-1686(93)90040-6","DOIUrl":"10.1016/0960-1686(93)90040-6","url":null,"abstract":"<div><p>Two chamber-based methods for measurement of emission of NO from soil have been compared. One method measured NO by conversion to NO<sub>2</sub> with a CrO<sub>3</sub> converter and NO<sub>2</sub> detection by luminol chemiluminescence. The other technique detects NO directly via NO/ozone chemiluminescence. The techniques were tested with a glass manifold system by addition of NO and other trace gases into a flowing zero air gas stream; water vapor was also added to the carrier gas in some cases. A second set of tests involved the simultaneous determination of NO concentrations from a chamber placed over the soil. Finally, flux measurements were made independently from common plots and from different plots within the same field. The luminol system was unaffected by the presence of ammonia, methylamine, acetonitrile and nitrous oxide, but had a lower response to NO in the presence of water vapor. The decrease was 7% at a relative humidity of 50%, and about 3% at a relative humidity of 23%. The NO/ozone chemiluminescence system was not influenced by any of the species doped into the gas stream. The simultaneous chamber data also showed a decreased response from the luminol system that was consistent with the humidity effect observed in the manifold tests. The average of independently measured flux values from common plots agreed reasonably well. However, the overall site mean flux determined by the luminol system was 74% of that of the NO/ozone system due to a larger data set from the luminol system. This comparison demonstrates that flux spatial heterogeneity can overwhelm analytical uncertainties, and that large sample sizes are needed to accurately characterize field fluxes.</p></div>","PeriodicalId":100139,"journal":{"name":"Atmospheric Environment. Part A. General Topics","volume":"27 14","pages":"Pages 2107-2113"},"PeriodicalIF":0.0,"publicationDate":"1993-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0960-1686(93)90040-6","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77373835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 27

Theoretical aspects of iceload measurements on fixed rods and overhead line conductors: A transfer function for dry rime-ice accretion 固定杆和架空线路导体冰负荷测量的理论方面:干冰-冰积累的传递函数

Atmospheric Environment. Part A. General Topics Pub Date : 1993-10-01 DOI: 10.1016/0960-1686(93)90405-N

I.P. Bibby, G. Poots, P.L.I. Skelton

引用次数: 0