DOI: 10.1038/ngeo2092
论文题名: Contribution of sea surface carbon pool to organic matter enrichment in sea spray aerosol
作者: Quinn P.K. ; Bates T.S. ; Schulz K.S. ; Coffman D.J. ; Frossard A.A. ; Russell L.M. ; Keene W.C. ; Kieber D.J.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2014
卷: 7, 期: 3 起始页码: 228
结束页码: 232
语种: 英语
Scopus关键词: aerosol
; bioactivity
; carbon cycle
; cloud condensation nucleus
; coastal water
; correlation
; numerical model
; nutrient enrichment
; organic matter
; satellite imagery
; sea surface
; seawater
; supersaturation
; Atlantic Ocean
; Atlantic Ocean (North)
; California
; United States
英文摘要: Breaking waves on the ocean surface generate air bubbles that scavenge organic matter from the surrounding sea water. When injected into the atmosphere, these bubbles burst, yielding sea spray aerosols enriched in organic matter, relative to the sea water. Downwind of plankton blooms, the organic carbon content of sea spray aerosol is weakly correlated with satellite-derived measurements of chlorophyll a levels, a measure of phytoplankton biomass. This correlation has been used in large-scale models to calculate the organic enrichment in sea spray aerosol. Here, we assess the relationship between the organic carbon content of sea water and freshly emitted sea spray aerosol in the presence and absence of plankton blooms in the North Atlantic Ocean and the coastal waters of California. The organic carbon content of freshly emitted sea spray aerosol was similar in all regions sampled, despite significant differences in seawater chlorophyll a levels. The proportion of freshly emitted aerosols that served as cloud condensation nuclei at a given supersaturation was also similar across sampling sites. The large reservoir of organic carbon in surface sea water remained relatively constant across the regions sampled, and independent of variations in chlorophyll a concentrations. We suggest that this reservoir is responsible for the organic carbon enrichment of freshly emitted sea spray aerosol, overwhelming any influence of local biological activity as measured by chlorophyll a levels. © 2014 Macmillan Publishers Limited. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106476
Appears in Collections: 气候减缓与适应 科学计划与规划
There are no files associated with this item.
作者单位: NOAA Pacific Marine Environmental Laboratory, 7600 Sand Point Way NE, Seattle, WA 98115, United States; Scripps Institute of Oceanography, UC San Diego, San Diago, CA 92093, United States; Department of Environmental Sciences, University of Virginia, Charlottesville, VA 22904, United States; SUNY, College of Environmental Science and Forestry, Syracruse, NY 13210, United States
Recommended Citation:
Quinn P.K.,Bates T.S.,Schulz K.S.,et al. Contribution of sea surface carbon pool to organic matter enrichment in sea spray aerosol[J]. Nature Geoscience,2014-01-01,7(3)