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7篇 您的检索式:作者名="Robert Vet"
    题名 作者 年代 出处 被引量
1Eulerian model evalua- tion field study (EMEFS): a summary of surface network measurements and data quality显示文摘McNaughton Daniel J Vet Robert J 1996Atmospheric Environment1996,30,2:1
2Contribution of Canada–United States transboundary transport to wet deposition of sulphur and nitrogen oxides—A mass balance approach显示文摘Robert Vet Chul-Un Ro 2007Atmospheric Environment2007,,10:1
3Estimation of contributions of NO 2 and PAN to total atmospheric deposition of oxidized nitrogen across Eastern Canada显示文摘Leiming Zhang Jeffrey R. Brook Robert Vet Allan Wiebe Cristian Mihele Mike Shaw Jason M. O’Brien Syed Iqbal 2005Atmospheric Environment2005,,37:1
4Data management and archiving for the Pacific 2001Air Quality Study显示文摘 Robert J Vet Shao-meng Li 2006Atmospheric Environment2006,40,15:1
5The Delphi List显示文摘Arianne P. Verhagen Henrica C.W. de Vet Robert A. de Bie Alphons G.H. Kessels Maarten Boers Lex M. Bouter Paul G. Knipschild 1998Journal of Clinical Epidemiology1998,,12:1
6A REVIEW OF CURRENT KNOWLEDGE CONCERNING SIZE-DEPENDENT AEROSOL REMOVAL显示文摘The status of current knowledge on size-dependent aerosol removal by dry and wet processes, including dry deposition and impaction and nucleation scavenging, is reviewed. The largest discrepancies between theoretical es-timations and measurement data on dry deposition and below-cloud scavenging are for submicron particles. Early dry deposition models, which developed based on chamber and wind tunnel measurements, tended to underestimate dry deposition velocity (Vd) for submicron particles by around one order of magnitude compared to recent field measure-ments. Recently developed models are able to predict reasonable Vd values for submicron particles but shift unrealisti-cally the predicted minimum Vd to larger particle sizes. Theoretical studies of impaction scavenging of aerosol particles by falling liquid drops also substantially underestimate the scavenging coefficients for submicron particles. Empirical for-mulas based on field measurements can serve as an alternative to the theoretical scavenging models. Future develop-ment of size-resolved impaction scavenging models needs to include more precipitation properties (e.g., droplet surface area) and to be evaluated by detailed cloud microphysical models and available measurements. Several recently de-veloped nucleation scavenging parameterizations for in-cloud removal of interstitial aerosol give comparable results when evaluated against parcel models; however, they need to be verified once suitable field measurements are available. More theoretical and field studies are also needed in order to better understand the role of organic aerosols in the nu-cleation scavenging process.Robert Vet 2006China Particuology2006,4,6:1
7对加拿大东南部湖泊从酸沉降效应中恢复的评价显示文摘北美洲SO_2排放量的减少激起了人们对加拿大东南部的水生态系统能迅速摆脱酸化的状态的期待。但是只有那些明显减少了排放量的冶炼厂附近的湖泊达到了这种期望值。在临近大西洋的省份魁北克和安大略,受远程污染源影响的湖泊的硫酸根离子(SO_4^(2-))浓度都有一定降低,但pH和碱度则仅有较少量的提高。对于这种延迟的酸度响应,有如下几种因素可以解释:碱基阳离子含量的下降,干旱加速SO_4^(2-)的迁栘,水体内部碱性物项生成机制遭到破坏;同时硝酸盐和有机阴离子含量的提高也可能是其中的原因。对加拿大东南部生物恢复的监测资料非常有限,即使有的话,在萨德伯里(Sudbury)和基拉尼(Killarney)地区以外也很难找到恢复的证据。比如,尽管除了酸化作用外其他因素也对上述现象有一定影响,新思科舍河中的大西洋鲑鱼出现率和安大略湖潜鸟的繁殖成功率实际上正在下降。化学和生物学模型预测,只有比目前法规要求严格的多的SO_2排放削减额才能促进广泛的化学恢复和其后的生物恢复,而在加拿大东南部的众多湖泊中重建工业化前的化学与生物学条件或许很难实现。Dean S.Jeffries Thomas A.Clair Suzanne Couture Peter J.Dillon Jacques Dupont Wendel(BiIl)Keller Donald K. McNico Michael A.Turner Robert Vet Russell Weeber 张路 2003AMBIO-人类环境杂志2003,32,3:0
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