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DOI | 10.1029/2021GL095469 |
Photo-reactivity of surfactants in the sea-surface microlayer and subsurface water of the Tyne estuary, UK | |
Philippa C. Rickard; Guenther Uher; Robert C. Upstill-Goddard | |
2022-02-11 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | We report the first estimates of total surfactant photo-reactivity in the sea-surface microlayer (SML) and in subsurface water (SSW) (Tyne estuary, UK; salinity 0.3-32.0). In addition to temperature, a known driver of surfactant adsorption kinetics, we show that irradiation contributes independently to enhanced interfacial surfactant activity (SA), a notion supported by coincident CDOM photodegradation. We estimate a mean SA production via irradiation of 0.064 0.062 mg l-1 T-X-100 equivalents h-1 in the SML and 0.031 0.025 mg l-1 T-X-100 equivalents h-1 in the SSW. Using these data, we derive first-order estimates of the potential suppression of the gas transfer velocity (kw) by photo-derived surfactants ∼12.9-22.2% in coastal North Sea water. Given the ubiquitous distribution of natural surfactants in the oceans, we contend that surfactant photochemistry could be a hitherto unrecognized additional driver of air-sea gas exchange, with potential implications for global trace gas budgets and climate models. |
领域 | 气候变化 |
URL | 查看原文 |
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/346751 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Philippa C. Rickard,Guenther Uher,Robert C. Upstill-Goddard. Photo-reactivity of surfactants in the sea-surface microlayer and subsurface water of the Tyne estuary, UK[J]. Geophysical Research Letters,2022. |
APA | Philippa C. Rickard,Guenther Uher,&Robert C. Upstill-Goddard.(2022).Photo-reactivity of surfactants in the sea-surface microlayer and subsurface water of the Tyne estuary, UK.Geophysical Research Letters. |
MLA | Philippa C. Rickard,et al."Photo-reactivity of surfactants in the sea-surface microlayer and subsurface water of the Tyne estuary, UK".Geophysical Research Letters (2022). |
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