globalchange  > 气候变化与战略
DOI: 10.1016/j.atmosenv.2019.117190
论文题名:
Up-scaling mercury emissions from terrestrial surfaces as a response to sustained temperature increase
作者: MacSween K.; Edwards G.C.; Howard D.A.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 223
语种: 英语
英文关键词: Atmospheric temperature ; Climate models ; Mercury (metal) ; Temperature ; Air-surface exchanges ; Anthropogenic emissions ; Changing temperature ; Controlling parameters ; Meteorological variables ; Micrometeorology ; Temperature increase ; Temperature projection ; Climate change ; mercury ; air temperature ; anthropogenic source ; climate change ; emission ; human activity ; mercury (element) ; micrometeorology ; solar radiation ; air temperature ; ambient air ; climate change ; comparative study ; exhaust gas ; field study ; high temperature ; limit of detection ; meteorology ; night ; priority journal ; soil moisture ; soil temperature ; solar radiation ; substrate concentration ; surface area ; volcano
学科: Air-surface exchange ; Climate change ; Mercury ; Micrometeorology ; Temperature
中文摘要: It has been well established that human activities have significantly altered the earth's climate system. Terrestrial Mercury (Hg) emissions exhibit a strong relationship with meteorological variables, in particular solar radiation and temperature. Alterations to these controlling parameters resulting from climate change will influence Hg air-surface exchange trends. Over the past two decades, using the same micrometeorological-based methodology, mercury flux data was collected at a number of varying terrestrial sites globally. This study aimed to investigate the relationship between climate variables and mercury air-surface exchange. The large data set identified significant relationships between Hg air-surface exchange and temperature that was consistent across the multiple field sites, facilitating the development of a well-constrained empirical model to predict the impact of climate change on terrestrial mercury air-surface exchange, with changing temperature. Flux increases calculated, based on IPCC Temperature projections, ranged between 15 and 43% increase for a 1–2 °C rise in temperature by 2050 and 15–96% increase for temperature rise between 1 and 3.7 °C by 2100. The projections developed here indicate that air temperature can be used as a baseline for determining potential terrestrial evasion under projected climate change, prolonging the recovery time of the natural mercury cycle in view of reduced anthropogenic emissions. © 2019
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161039
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作者单位: Department of Environmental Sciences, Faculty of Science and Engineering, Macquarie University, Sydney, Australia

Recommended Citation:
MacSween K.,Edwards G.C.,Howard D.A.. Up-scaling mercury emissions from terrestrial surfaces as a response to sustained temperature increase[J]. Atmospheric Environment,2020-01-01,223
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