Browsing FAS Harvard-China Project by Title
Now showing items 49-56 of 56
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Thermodynamic disequilibrium of the atmosphere in the context of global warming
(Springer Science + Business Media, 2015)The atmosphere is an example of a non-equilibrium system. This study explores the relationship among temperature, energy and entropy of the atmosphere, introducing two variables that serve to quantify the thermodynamic ... -
Thermodynamic Modeling Suggests Declines in Water Uptake and Acidity of Inorganic Aerosols in Beijing Winter Haze Events during 2014/2015–2018/2019
(American Chemical Society (ACS), 2019-11-04)During recent years, aggressive air pollution mitigation measures in northern China have resulted in considerable changes in gas and aerosol chemical composition. But it is unclear whether aerosol water content and acidity ... -
Top-down estimate of China's black carbon emissions using surface observations: Sensitivity to observation representativeness and transport model error
(Wiley-Blackwell, 2013)This study examines the sensitivity of “top-down” quantification of Chinese black carbon (BC) emissions to the temporal resolution of surface observations and to the transport model error associated with the grid resolution ... -
Traffic restrictions associated with the Sino-African summit: Reductions of NOx detected from space
(Wiley-Blackwell, 2007)Aggressive measures were instituted by the Beijing municipal authorities to restrict vehicular traffic in the Chinese capital during the recent Sino-African Summit. We show that reductions in associated emissions of NOx ... -
Urban form and digitalization of urban design
In the mid-18 Century, John Snow utilized spatial data analysis to trace the source of a cholera outbreak in London. His methods established the fundamental theory of using urban morphological study to solve practical urban ... -
Variations of \(O_3\) and CO in Summertime at a Rural Site Near Beijing
(Copernicus Publications on behalf of the European Geosciences Union, 2008)Large intra-season differences in mixing ratios of CO and \(O_3\) were detected at Miyun, a rural site north of Beijing, in summer 2006. Despite an increase in mean daytime mixing ratio of CO from 500 ppbv in June to 700 ... -
Will PM control undermine China’s efforts to reduce soil acidification?
(Elsevier BV, 2011)China’s strategies to control acidifying pollutants and particulate matter (PM) may be in conflict for soil acidification abatement. Acidifying pollutant emissions are estimated for 2005 and 2020 with anticipated control ... -
Year round measurements of O3 and CO at a rural site near Beijing: variations in their correlations
(Co-Action Publishing, 2010)We examine seasonal variations of carbon monoxide (CO), ozone (O3), and their relationships observed over the course of 3 yr (2005–2007) at Miyun, a rural site 100 km north of Beijing. Monthly mean afternoon mixing ratios ...