Topographic Stabilization of Ocean Rings
نویسندگان
چکیده
Coherent large-scale vortices in the open ocean can retain their structure and properties for periods as long several years. However, patterns of potential vorticity such suggest that they are baroclinically unstable therefore should rapidly disintegrate. This study proposes a plausible explanation longevity rings based on bottom roughness, which restricts flow lower layer thereby stabilizes eddy. We perform series simulations topography is represented by observationally derived Goff-Jordan spectrum. demonstrate coherent dramatically prolongs lifespan. In contrast, same flat-bottom model exhibit strong instability fragmentation timescale weeks. A critical depth variance exists allows to remain stable circularly symmetric indefinitely. Our investigation underscores essential role played dynamics large- meso-scale flows.
منابع مشابه
Topographic enhancement of vertical turbulent mixing in the Southern Ocean
It is an open question whether turbulent mixing across density surfaces is sufficiently large to play a dominant role in closing the deep branch of the ocean meridional overturning circulation. The diapycnal and isopycnal mixing experiment in the Southern Ocean found the turbulent diffusivity inferred from the vertical spreading of a tracer to be an order of magnitude larger than that inferred ...
متن کاملSensitivity of ocean acidification to geoengineered climate stabilization
[1] Climate engineering has been proposed as a possible response to anthropogenic climate change. While climate engineering may be able to stabilize temperatures, it is generally assumed that this will not prevent continued ocean acidification. However, due to the strong coupling between climate and the carbon cycle, climate engineering could indirectly affect ocean chemistry. We used a global ...
متن کاملhazard evaluation of gas condensate stabilization and dehydration unit of parsian gas refinery using hazop procedures
شناسایی مخاطرات در واحد 400 پالایشگاه گاز پارسیان. در این پروزه با بکارگیری از تکنیک hazop به شناسا یی مخاطرات ، انحرافات ممکن و در صورت لزوم ارایه راهکارهای مناسب جهت افزایش ایمنی فرا یند پرداخته میگردد. شرایط عملیاتی مخاطره آمیز نظیر فشار و دمای بالا و وجود ترکیبات مختلف سمی و قابل انفجار در واحدهای پالایش گاز، ضرورت توجه به موارد ایمنی در این چنین واحدهایی را مشخص می سازد. مطالعه hazop یک ر...
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2022
ISSN: ['1944-8007', '0094-8276']
DOI: https://doi.org/10.1029/2021gl097686