Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL073949 |
Particulate concentration and seasonal dynamics in themesopelagic ocean based on the backscattering coefficient measured with Biogeochemical-Argo floats | |
Poteau, Antoine1; Boss, Emmanuel2; Claustre, Herve1 | |
2017-07-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:13 |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA |
英文摘要 | We explore a novel and spatially extensive data set obtained from Biogeochemical-Argo (or BGC-Argo) floats, containing 16,796 profiles of the particulate backscattering coefficient at 700 nm (b(bp)(700)) measured with three different sensors. We focus at the 900-950m depth interval (within the mesopelagic), where we found values to be relatively constant. While we find significant differences between estimates of bbp(700) obtained with different sensors (similar to 30% disagreement), the median values in most oceanic regions obtained with a single type of sensor are within 50% of each other and are consistent with measurements of suspended mass conducted in the early 1970s. Deviations from the quasi-constant background value likely indicate times and locations associated with higher particulate export to depth. Indeed, we observe that in productive high-latitude regions, a deep seasonal signal is observed, with enhanced values recorded a few months after surface spring/summer maximal concentrations. In addition, the deep b(bp)(700) is highest in regions exhibiting suboxic-anoxic conditions (e.g., Northern Indian Ocean), which have been associated with local particulate production as well as reduced particle flux attenuation. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000406257400054 |
WOS关键词 | ARABIAN SEA ; IN-SITU ; ATLANTIC ; MATTER |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/27096 |
专题 | 气候变化 |
作者单位 | 1.5 UPMC Univ Paris 06, Sorbonne Univ, CNRS, LOV,UMR 7093, Villefranche Sur Mer, France; 2.Univ Maine, Sch Marine Sci, Orono, ME USA |
推荐引用方式 GB/T 7714 | Poteau, Antoine,Boss, Emmanuel,Claustre, Herve. Particulate concentration and seasonal dynamics in themesopelagic ocean based on the backscattering coefficient measured with Biogeochemical-Argo floats[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(13). |
APA | Poteau, Antoine,Boss, Emmanuel,&Claustre, Herve.(2017).Particulate concentration and seasonal dynamics in themesopelagic ocean based on the backscattering coefficient measured with Biogeochemical-Argo floats.GEOPHYSICAL RESEARCH LETTERS,44(13). |
MLA | Poteau, Antoine,et al."Particulate concentration and seasonal dynamics in themesopelagic ocean based on the backscattering coefficient measured with Biogeochemical-Argo floats".GEOPHYSICAL RESEARCH LETTERS 44.13(2017). |
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