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Noone, K.J.; Öström, E.; Ferek, R.J.; Garrett, T.; Hobbs, P.V.; Johnson, D.W.; Taylor, J.P.; Russell, L.M.; Flagan, R.C.; Seinfeld, J.H.; O'Dowd, C.D.; Smith, M.H.; Durkee, P.A.; Nielsen, K.; Hudson, J.G.; Pockalny, R.A.; De Bock, L.; Van Grieken, R.E.; Gasparovic, R.F.; Brooks, I.. |
The effects of anthropogenic particulate emissions from ships on the radiative, microphysical, and chemical properties of m(oderately polluted marine stratiform clouds are examined. A case study of two ships in the same air mass is presented where one of the vessels caused a discernible ship track while the other did not. <i>In situ</i> measurements of cloud droplet size distributions, liquid water content, and cloud radiative properties, as well as aerosol size distributions (outside cloud, interstitial, and cloud droplet residual particles) and aerosol chemistry, are presented. These are related to measurements of cloud radiative properties. The differences between the aerosol in the two ship plumes are discussed; these indicate that... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aerosols; Air pollution; Albedo; Anthropogenic factors; Atmospheric boundary layer; Atmospheric particulates; Chemical plumes; Cloud physics; Clouds; Droplets; Fuels; Ocean-atmosphere system; Pollution effects; Radiative transfer; Ships; Size distribution. |
Ano: 2000 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8840 |
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Olivia, Susan; Gibson, John. |
The proper design of price interventions requires consideration of equity and efficiency effects. In this paper, budget survey data from 29,000 Indonesian households are used to estimate a demand system for five energy sources, which is identified by the spatial variation in unit values (expenditures divided by quantities). We correct for the various quality and measurement error biases that result when unit values are used as proxies for market prices. The price elasticities are combined with tax and subsidy rates to calculate the marginal social cost of price changes for each item. The results suggest that even at high levels of inequality aversion there is a strong case for reducing the large subsidies on gasoline and kerosene, supporting the reforms... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Demand elasticities; Energy; Fuels; Subsidies; Unit Values; Resource /Energy Economics and Policy; D12; Q31. |
Ano: 2006 |
URL: http://purl.umn.edu/25745 |
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