GSTDTAP  > 气候变化
DOI10.1029/2018JD030057
Spatioseasonal Variations of Atmospheric Ammonia Concentrations Over the United States: Comprehensive Model-Observation Comparison
Nair, Arshad Arjunan; Yu, Fangqun; Luo, Gan
2019-06-27
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
ISSN2169-897X
EISSN2169-8996
出版年2019
卷号124期号:12页码:6571-6582
文章类型Article
语种英语
国家USA
英文摘要

Atmospheric ammonia plays an important role in a number of environmental issues, including new particle formation and aerosol indirect radiative forcing. Over the United States, atmospheric ammonia has seen an increasing trend due in most part to the declining SO2 and NOx emissions. We conduct the first comprehensive assessment of multiyear Goddard Earth Observing System (GEOS)-Chem simulated ammonia concentration ([NH3]) over conterminous United States along with surface observations from all 90 National Atmospheric Deposition Program Ammonia Monitoring Network (AMoN) sites that have at least 2 years of continuous measurements. Model-simulated [NH3] is along empirically expected lines with regard to temporal trends, seasonal variations, and spatial distribution. GEOS-Chem-simulated [NH3], compared to AMoN observed values, has weighted average correlation (tau) of 0.50 0.15 and mean fractional bias (MFB) of -8.8 56%. Most sites (63 out of 90) have -60% < MFB < +60%. The deviations from observed values vary spatially and seasonally, and there is significant wintertime underestimation (-44 58%) across most of conterminous United States (except the Pacific states). The largest positive deviations occur in the Pacific states (101 46%) and the largest negative deviations in the Southern Plain states (-73 +/- 39%) and the Mountain states (-73 +/- 84%), both in the winter months. Over the Great Plains region, GEOS-Chem simulated [NH3] shows a much stronger dependence to emissions than AMoN observed [NH3], indicating scope for improved representation of emissions for the region. Over Southeast United States, there appears to be the strong effect of the changing emissions of SO2 and NOx in both modeled and observed [NH3].


英文关键词atmospheric ammonia spatiotemporal variation model-observation comparison new particle formation emission reduction ecosystem
领域气候变化
收录类别SCI-E
WOS记录号WOS:000477800000040
WOS关键词NITROGEN DEPOSITION ; REDUCED NITROGEN ; EMISSIONS ; AEROSOL ; TRENDS ; SIMULATION ; SULFUR
WOS类目Meteorology & Atmospheric Sciences
WOS研究方向Meteorology & Atmospheric Sciences
引用统计
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/184193
专题气候变化
作者单位SUNY Albany, Atmospher Sci Res Ctr, Albany, NY 12222 USA
推荐引用方式
GB/T 7714
Nair, Arshad Arjunan,Yu, Fangqun,Luo, Gan. Spatioseasonal Variations of Atmospheric Ammonia Concentrations Over the United States: Comprehensive Model-Observation Comparison[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(12):6571-6582.
APA Nair, Arshad Arjunan,Yu, Fangqun,&Luo, Gan.(2019).Spatioseasonal Variations of Atmospheric Ammonia Concentrations Over the United States: Comprehensive Model-Observation Comparison.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(12),6571-6582.
MLA Nair, Arshad Arjunan,et al."Spatioseasonal Variations of Atmospheric Ammonia Concentrations Over the United States: Comprehensive Model-Observation Comparison".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.12(2019):6571-6582.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Nair, Arshad Arjunan]的文章
[Yu, Fangqun]的文章
[Luo, Gan]的文章
百度学术
百度学术中相似的文章
[Nair, Arshad Arjunan]的文章
[Yu, Fangqun]的文章
[Luo, Gan]的文章
必应学术
必应学术中相似的文章
[Nair, Arshad Arjunan]的文章
[Yu, Fangqun]的文章
[Luo, Gan]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。