The Abundance and Seasonal Variability of Tropospheric Ozone and Its Precursors Over China
中国对流层臭氧及其前体的丰度和季节变化
基本信息
- 批准号:0635548
- 负责人:
- 金额:$ 52.5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2007
- 资助国家:美国
- 起止时间:2007-03-01 至 2011-02-28
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The goals of this project include an improved understanding of factors regulating the abundance and seasonal variability of tropospheric ozone and its precursors (in particular NOx, nitrogen oxides, NO + NO2) over China. Multi-year observations of NO2 from space will be employed to develop improved information on seasonal and spatial variations in combustion and biological sources of NOx over China. New constraints on emissions of CO and CO2 (carbon monoxide and dioxide) associated with Chinese fossil fuel consumption will be developed using the first continuous, long-term, simultaneous measurements of CO2 and CO at a surface station in north China. Improvements in understanding of emissions will be incorporated in a 3-dimensional nested grid chemical model (GEOS-Chem) to analyze surface and aircraft observations of ozone for different seasons over Asia. Specific objectives of the work are: (1) to develop 'top-down' estimates for the seasonal variation of combustion and microbial sources of NOx over China based on a reanalysis of multi-year observations of NO2 columns inferred from GOME and other satellite instruments; (2) to determine factors responsible for the seasonal variability of tropospheric ozone and the outflow of ozone from the Asian landmass using a 3-D nested-grid model to analyze aircraft and a year long record of surface observations; and (3) to improve the understanding of emissions of CO2 associated with Chinese fossil fuel consumption and the role of the biosphere for the regional budget of CO2 over China. This research is expected to improve our understanding of combustion and biological sources of NOx on a global scale with particular emphasis on sources from rapidly developing China. This will be helpful for policy makers by providing input into understanding the complex impacts of ozone pollution on public health and agricultural productivity in China. Results of this work will also be integrated into the teaching of undergraduate (science and non-science) and graduate students at Harvard.
该项目的目标包括提高对中国对流层臭氧及其前体(特别是NOx、氮氧化物、NO + NO2)丰度和季节变化的调节因素的认识。将利用来自空间的多年NO2观测资料,开发有关中国境内NOx燃烧和生物来源的季节和空间变化的改进信息。利用中国北方地面站首次连续、长期、同时测量的二氧化碳和一氧化碳,将制定与中国化石燃料消耗相关的二氧化碳和二氧化碳(一氧化碳和二氧化碳)排放的新限制。对排放的进一步了解将被纳入一个三维嵌套网格化学模型(GEOS-Chem),以分析亚洲不同季节的地面和飞机臭氧观测。工作的具体目标是:(1)基于从国美和其他卫星仪器推断的多年NO2柱观测数据的再分析,对中国NOx燃烧和微生物来源的季节变化进行“自上而下”的估计;(2)利用三维套网模式分析飞机和一年的地面观测记录,确定对流层臭氧季节性变化和亚洲大陆臭氧外流的影响因素;(3)提高对中国化石燃料消费相关的CO2排放量以及生物圈对中国区域CO2收支的作用的认识。这项研究有望提高我们对全球范围内NOx的燃烧和生物来源的理解,特别是对快速发展的中国的来源。这将有助于决策者了解臭氧污染对中国公众健康和农业生产力的复杂影响。这项工作的结果也将被整合到哈佛大学本科生(理科和非理科)和研究生的教学中。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Michael McElroy其他文献
Does God Work in All Things to the Good of Those Who Love Him? Family Caregivers of Persons with Early-Stage Dementia Share Their Spiritual Struggles
神在万事上互相效力,使爱他的人得益处吗?
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:0.8
- 作者:
J. McGee;Morgan Davie;R. Meraz;Dennis R. Myers;Michael McElroy - 通讯作者:
Michael McElroy
Offshore wind: An opportunity for cost-competitive decarbonization of China’s energy economy
海上风电:中国能源经济具有成本竞争力的脱碳机遇
- DOI:
10.1126/sciadv.aax9571 - 发表时间:
2020-02 - 期刊:
- 影响因子:13.6
- 作者:
Peter Sherman;Xinyu Chen;Michael McElroy - 通讯作者:
Michael McElroy
Michael McElroy的其他文献
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{{ truncateString('Michael McElroy', 18)}}的其他基金
Selected Studies of the Atmosphere with an Emphasis on Air Quality in China and on Prospects for Wind and Solar Energy as Potential Future Substitutes for Fossil Fuel
以中国空气质量为重点的大气研究以及风能和太阳能作为化石燃料未来潜在替代品的前景研究
- 批准号:
1019134 - 财政年份:2010
- 资助金额:
$ 52.5万 - 项目类别:
Continuing Grant
Interagency Agreement: Scientists, Engineers and Technician
机构间协议:科学家、工程师和技术人员
- 批准号:
0438539 - 财政年份:2002
- 资助金额:
$ 52.5万 - 项目类别:
Contract Interagency Agreement
Interagency Agreement: Scientists, Engineers and Technician
机构间协议:科学家、工程师和技术人员
- 批准号:
0308647 - 财政年份:2002
- 资助金额:
$ 52.5万 - 项目类别:
Contract Interagency Agreement
Theoretical Studies of the Chemical Composition of the Earth's Atmosphere
地球大气化学成分的理论研究
- 批准号:
9903529 - 财政年份:1999
- 资助金额:
$ 52.5万 - 项目类别:
Standard Grant
Theoretical Studies of the Chemical Composition of the Earth's Atmosphere
地球大气化学成分的理论研究
- 批准号:
9320778 - 财政年份:1994
- 资助金额:
$ 52.5万 - 项目类别:
Continuing Grant
Theoretical Studies of the Chemical Composition of the Earth's Atmosphere
地球大气化学成分的理论研究
- 批准号:
8921119 - 财政年份:1990
- 资助金额:
$ 52.5万 - 项目类别:
Continuing Grant
Special Minority Award (Earth and Planetary Sciences)
特别少数族裔奖(地球与行星科学)
- 批准号:
8821569 - 财政年份:1988
- 资助金额:
$ 52.5万 - 项目类别:
Standard Grant
Theoretical Studies of the Chemical Composition of the Earth's Atmosphere
地球大气化学成分的理论研究
- 批准号:
8413153 - 财政年份:1985
- 资助金额:
$ 52.5万 - 项目类别:
Continuing Grant
Nitrogen Transformations in Major East Coast Estuaries: Response to Large Inputs of Exogenous Nutrients
东海岸主要河口的氮转化:对外源养分大量输入的反应
- 批准号:
8316359 - 财政年份:1984
- 资助金额:
$ 52.5万 - 项目类别:
Continuing Grant
Theoretical Studies of the Chemical Composition of Atmospheres
大气化学成分的理论研究
- 批准号:
8117009 - 财政年份:1982
- 资助金额:
$ 52.5万 - 项目类别:
Continuing Grant
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