期刊
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
卷 116, 期 -, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2010JC006729
关键词
-
类别
资金
- NOAA [NA06OAR4310049]
- NASA [NNH05ZDA001N- NIP]
- NASA Carbon [NNH07ZDA001N]
Brominated very short-lived substances (VSLSs) such as bromoform (CHBr3), dibromomethane (CH2Br2), and chlorodibromomethane (CHClBr2) are receiving increasing attention, due to their important role in tropospheric and lower stratospheric ozone (O-3) chemistry. These brominated VSLSs were measured in air and surface water during the Gulf of Mexico and East Coast Carbon (GOMECC) cruise in the summer of 2007. Mean atmospheric mixing ratios for CHBr3, CH2Br2 and CHClBr2 for the entire cruise were 14.6 (0.7 to 138.3) ppt, 2.8 (0.5 to 13.2) ppt, and 0.5 (0.03 to 3.2) ppt, respectively; and mean sea-surface water concentrations were 66.0 (4.4 to 1724.8) pmol L-1, 10.6 (1.9 to 153.8) pmol L-1, and 1.0 (0.1 to 17.2) pmol L-1, respectively. These compounds were supersaturated almost everywhere in the study region, except a few locations in the Florida Straits and along the east coast of Florida, where negative saturation anomalies and fluxes were observed. Mean net fluxes observed during the GOMECC cruise for CHBr3, CH2Br2, and CHClBr2 were 47.6 (-25.4 to 1056.3) nmol m(-2) d(-1), 9.7 (-0.5 to 112.3) nmol m(-2) d(-1), and 0.8 (-1.2 to 10.8) nmol m(-2) d(-1), respectively. The net fluxes for these polybrominated compounds from the coastally influenced waters (bottom depth <= 200 m) are significantly higher than the net fluxes observed in the open ocean ( bottom depth >200 m).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据