Precipitation estimation

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  • Over the last decades Doppler radar systems have been instrumental to improve our understanding and monitoring capabilities of phenomena and processes taking place in the low, middle, and upper atmosphere. Weather radars, wind profilers, and incoherent and coherent scatter radars implementing Doppler techniques are now used routinely both in research and operational applications by scientists and practitioners. This book brings together a collection of essays by international leading authors devoted to different applications of ground based Doppler radars....

    pdf298p greengrass304 18-09-2012 52 14   Download

  • We used mill-level production and pollution data to estimate (1) the effect of China’s system of pollution control levies on three environmental effluents, and then (2) examined further the effect of this system of levies on the technical efficiency of mill-level production. Our results show that the pollution levies worked for those larger establishments that were the main targets of reform policies in this period.

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  • Over the last decades Doppler radar systems have been instrumental to improve our understanding and monitoring capabilities of phenomena and processes taking place in the low, middle, and upper atmosphere. Weather radars, wind profilers, and incoherent and coherent scatter radars implementing Doppler techniques are now used routinely both in research and operational applications by scientists and practitioners. This book brings together a collection of essays by international leading authors devoted to different applications of ground based Doppler radars....

    pdf0p greengrass304 18-09-2012 20 3   Download

  • When planning how to reduce the threat of global warming and how to adapt to it, a very important piece of information is how intense the change will be. That implies estimating the trends of future concentrations of greenhouse gasses, and the potential future changes in temperature, precipitation, storm events and other climatic variables. These predictions are important not only to estimate the magnitude of the changes, but also to determine the uncertainty surrounding them.

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  • W Water balance of the Aral Sea – the water balance of the sea depends on the correlation between the inflow of river and groundwaters, atmospheric precipitation, and water losses to evaporation. The structure of the A.S. water balance is a function of various levels of economic development. From 1930 through 1990, the available water resources in the basin were estimated at 115 cu. km annually. Natural water losses in 1930 were 36 cu. km, in 1960 – 13 cu. km, and in 1990 – 7 cu. km. Water consumption in 1930 was 25 cu. km, in 1960 – 48 cu....

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  • It is estimated that NRs. 0.5 billion per year in tourism revenue is lost due to air pollution in Kathmandu valley (World Bank, 1997). Findings of a survey conducted among 1,702 tourists between May and June 2001 by MARG Nepal indicate that the quality of air is the number one area where tourists feel improvement is needed. This shows that Kathmandu’s poor transportation system and pollution is not only affecting human health and environmental quality, but also the tourism industry (Business Age, 2001).

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  • Acid neutralizing capacity (ANC) is a com- monly used chemical indicator of lake or stream sensitivity to acidification. ANC, mea- sured in microequivalents per liter (µeq/L; See Box 3 for a list of chemical units of measure), characterizes the ability of water to neutralize strong acids including those introduced by atmospheric deposition. ANC is a good gen- eral indicator of acidity-related water quality because values are typically strongly correlated with pH, Al +3 concentrations, and Ca +2 con- centrations.

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  • A cellulase (endo-b-1,4-glucanase, EC 3.2.1.4) was purified from the gut of larvae of the yellow-spotted longicorn beetle Psacothea hilarisby acetone precipitation and elution from gels after native PAGE and SDS/PAGE with activity staining. The purified protein formed a single band, and the molecular mass was estimated to be 47 kDa. The purified cellulasedegradedcarboxymethylcellulose (CMC), insoluble cello-oligosaccharide (average degree of polymerization 34) and soluble cello-oligosaccharides longer than cellotriose, but not crystalline cellulose or cellobiose. ...

    pdf6p tumor12 20-04-2013 18 2   Download

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