نتایج جستجو برای: sulfur hexafluoride
تعداد نتایج: 32829 فیلتر نتایج به سال:
In order to evaluation of influence of sulphur fertilizer on grain yield and the some of physiological indices of canola, an split plot experiment based on randomized complete block design was conducted in Research Farm Islamic Azad University, Ardabil branch in 2007. Factors were: sulfur fertilizer at four levels (0 as control, 25, 50 and 75 kg S/ha) in the main plots and canola cultivars at t...
Abstract. Sulfur hexafluoride (SF6) is the most potent greenhouse gas (GHG), and its atmospheric abundance, albeit small, has been increasing rapidly. Although SF6 used to assess transport modeling emissions influence climate for millennia, emission magnitudes distributions have substantial uncertainties. In this study, we NOAA's ground-based airborne measurements of estimate from United States...
Assessing the applicability of global CFC and SF(6) input functions to groundwater dating in the UK.
Chlorofluorocarbons (CFCs) and sulphur hexafluoride (SF(6)) are increasingly being used to date recent groundwater components. While these trace gases are generally well-mixed in the atmosphere, there is evidence that local atmospheric excesses (LAEs) exist in some areas of the world, primarily associated with urbanisation and thereby affecting the interpretation of data derived from groundwate...
Future global climate projections are subject to large uncertainties. Major sources of this uncertainty are projections of anthropogenic emissions. We evaluate the uncertainty in future anthropogenic emissions using a computable general equilibrium model of the world economy. Results are simulated through 2100 for carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC...
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