DOI: 10.1002/2013JD020394
论文题名: Atmospheric concentrations and deposition of reactive nitrogen in Grand Teton National Park
作者: Benedict K.B. ; Chen X. ; Sullivan A.P. ; Li Y. ; Day D. ; Prenni A.J. ; Levin E.J.T. ; Kreidenweis S.M. ; Malm W.C. ; Schichtel B.A. ; Collett Jr. J.L.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 20 起始页码: 11875
结束页码: 11887
语种: 英语
英文关键词: ammonia
; atmospheric deposition
; Grand Teton
; nitrogen deposition
; organic nitrogen
Scopus关键词: Ammonia
; Meteorological problems
; Nitric acid
; Atmospheric concentration
; Atmospheric depositions
; Grand Teton
; Nitric acid concentration
; Nitrogen deposition
; Organic nitrogen
; Reactive nitrogen species
; Total nitrogen deposition
; Nitrogen
; aerosol composition
; ammonia
; atmospheric chemistry
; atmospheric deposition
; concentration (composition)
; nitric acid
; nitrogen
; particulate matter
; Grand Teton National Park
; United States
; Wyoming
英文摘要: The Grand Teton Reactive Nitrogen Deposition Study (GrandTReNDS) was conducted to provide a more complete look at atmospheric concentrations and deposition fluxes of various reactive nitrogen species in and around Grand Teton National Park (GTNP). Daily measurements of wet deposition, PM2.5 composition, and gaseous ammonia and nitric acid concentrations were made at three locations. Weekly measurements of gaseous ammonia were made at eight additional sites. Ammonia concentrations were higher at the western sites; the study average ammonia concentration west of GTNP was 35 nmol m-3 and on the east side of the park it was 18 nmol m-3. Concentrations of other measured reactive nitrogen species were lower than NH3 and fairly similar at all sites, with averages of approximately 9, 1, and 3 nmol m-3 for ammonium, nitrate, and nitric acid, respectively. Wet deposition of ammonium and dry deposition of ammonia were the largest reactive nitrogen deposition pathways, together accounting for 56% and 62% of the nitrogen deposition on the east and west sides of GTNP, respectively. Nitrogen deposition of measured species totaled 2.38 kg N ha-1 west of GTNP at Driggs, ID (6 April to 21 September 2011), 0.85 kg N ha-1 west of GTNP at a high-elevation site (28 July to 21 September 2011) and 1.23 kg N · ha-1 at a location on the east side of GTNP (15 May to 21 September 2011). These measurements highlight the significant inputs of reactive nitrogen to regional ecosystems over the few months studied, the importance of including NH3 dry deposition in nitrogen deposition budgets, and the need to conduct further research to capture sources and the annual cycle of deposition. Key Points Reactive nitrogen species in Grand Teton National Park Ammonia concentrations were highest to the west of the park Reduced nitrogen contributed the most to total nitrogen deposition ©2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63227
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Department of Atmospheric Science, Colorado State University, Fort Collins CO, United States; Department of Land, Air, and Water Resources, University of California, Davis CA 95616, United States; Cooperative Institute for Research in the Atmosphere/NPS, Colorado State University, Fort Collins CO, United States
Recommended Citation:
Benedict K.B.,Chen X.,Sullivan A.P.,et al. Atmospheric concentrations and deposition of reactive nitrogen in Grand Teton National Park[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(20)