Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089425 |
Full‐Depth Global Estimates of Ocean Mesoscale Eddy Mixing from Observations and Theory | |
Sjoerd Groeskamp; Joseph H. LaCasce; Trevor J. McDougall; Marine Rogé | |
2020-09-09 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Mixing by mesoscale eddies profoundly impacts climate and ecosystems by redistributing and storing dissolved tracers such as heat and carbon. Eddy mixing is parameterized in most numerical models of the ocean and climate. To reduce known sensitivity to such parameterizations, observational estimates of mixing are needed. However, logistical and technological limitations obstruct our ability to measure global time‐varying mixing rates. Here, we extend mixing length theory with mean‐flow suppression theory, and first surface modes, to estimate mixing from readily‐available observational‐based climatological data, of salinity, temperature, pressure and eddy kinetic energy at the sea surface. The resulting full‐depth global maps of eddy mixing can reproduce the few available direct estimates and confirm the importance of mean‐flow suppression of mixing. The results also emphasize the significant effect of eddy surface intensification and its relation to the vertical density stratification. These new insights in mixing dynamics will improve future mesoscale eddy mixing parameterizations. |
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/293954 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Sjoerd Groeskamp,Joseph H. LaCasce,Trevor J. McDougall,等. Full‐Depth Global Estimates of Ocean Mesoscale Eddy Mixing from Observations and Theory[J]. Geophysical Research Letters,2020. |
APA | Sjoerd Groeskamp,Joseph H. LaCasce,Trevor J. McDougall,&Marine Rogé.(2020).Full‐Depth Global Estimates of Ocean Mesoscale Eddy Mixing from Observations and Theory.Geophysical Research Letters. |
MLA | Sjoerd Groeskamp,et al."Full‐Depth Global Estimates of Ocean Mesoscale Eddy Mixing from Observations and Theory".Geophysical Research Letters (2020). |
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