Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018JD029073 |
Spatiotemporal Controls on Observed Daytime Ozone Deposition Velocity Over Northeastern US Forests During Summer | |
Clifton, O. E.1,2,3; Fiore, A. M.1,2; Munger, J. W.4,5; Wehr, R.6 | |
2019-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
![]() |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2019 |
卷号 | 124期号:10页码:5612-5628 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Spatiotemporal variability in ozone dry deposition is often overlooked despite its implications for interpreting and modeling tropospheric ozone concentrations accurately. Understanding the influences of stomatal versus nonstomatal deposition processes on ozone deposition velocity is important for attributing observed changes in the ozone depositional sink and associated damage to ecosystems. Here, we aim to identify the stomatal versus nonstomatal deposition processes driving observed variability in ozone deposition velocity over the northeastern United States during June-September. We use ozone eddy covariance measurements from Harvard Forest in Massachusetts, which span a decade, and from Kane Experimental Forest in Pennsylvania and Sand Flats State Forest in New York, which span one growing season each, along with observation-driven modeling. Using a cumulative precipitation indicator of soil wetness, we infer that high soil uptake during dry years and low soil uptake during wet years may contribute to the twofold interannual variability in ozone deposition velocity at Harvard Forest. We link stomatal deposition and humidity to variability in ozone deposition velocity on daily timescales. The humidity dependence may reflect higher uptake by leaf cuticles under humid conditions, noted in previous work. Previous work also suggests that uptake by leaf cuticles may be enhanced after rain, but we find that increases in ozone deposition velocity on rainy days are instead mostly associated with increases in stomatal conductance. Our analysis highlights a need for constraints on subseasonal variability in ozone dry deposition to soil and fast in-canopy chemistry during ecosystem stress. |
英文关键词 | dry deposition stomatal conductance eddy covariance temperate forest ozone nonstomatal deposition |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000471237200027 |
WOS关键词 | TEMPERATE DECIDUOUS FOREST ; VOLATILE ORGANIC-COMPOUNDS ; DRY DEPOSITION ; OXIDATION-PRODUCTS ; TROPOSPHERIC OZONE ; SURFACE WETNESS ; SESQUITERPENE EMISSIONS ; STOMATAL CONDUCTANCE ; SOIL RESPIRATION ; SULFUR-DIOXIDE |
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/183360 |
专题 | 气候变化 |
作者单位 | 1.Columbia Univ, Dept Earth & Environm Sci, Palisades, NY 10964 USA; 2.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA; 3.Natl Ctr Atmospher Res, Adv Study Program, POB 3000, Boulder, CO 80307 USA; 4.Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA; 5.Harvard Univ, Dept Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA; 6.Univ Arizona, Dept Ecol & Evolutionary Biol, Tucson, AZ USA |
推荐引用方式 GB/T 7714 | Clifton, O. E.,Fiore, A. M.,Munger, J. W.,et al. Spatiotemporal Controls on Observed Daytime Ozone Deposition Velocity Over Northeastern US Forests During Summer[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(10):5612-5628. |
APA | Clifton, O. E.,Fiore, A. M.,Munger, J. W.,&Wehr, R..(2019).Spatiotemporal Controls on Observed Daytime Ozone Deposition Velocity Over Northeastern US Forests During Summer.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(10),5612-5628. |
MLA | Clifton, O. E.,et al."Spatiotemporal Controls on Observed Daytime Ozone Deposition Velocity Over Northeastern US Forests During Summer".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.10(2019):5612-5628. |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论