Vertical eddy viscosity

General scientific issues regarding ROMS

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zhangtianhao
Posts: 50
Joined: Fri May 11, 2018 5:36 pm
Location: Beijing Normal University

Vertical eddy viscosity

#1 Unread post by zhangtianhao »

Hi all,

I plan to calculate the value of vertical eddy viscosity —— Km. I wonder if ROMS could output this variable, or I have to calculate it by myself?

Thanks.

Hoty
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kate
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Re: Vertical eddy viscosity

#2 Unread post by kate »

I believe it is called Akv in the ROMS output.

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zhangtianhao
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Joined: Fri May 11, 2018 5:36 pm
Location: Beijing Normal University

Re: Vertical eddy viscosity

#3 Unread post by zhangtianhao »

kate wrote: Wed Dec 09, 2020 4:49 pm I believe it is called Akv in the ROMS output.
Kate,

Thanks for your reply. But I remember that the defination of Akv [Input] is vertical viscosity (ν in the picture below) but not vertical eddy viscosity (Km in the picture below) . I wonder that if Akv [Output] is the sum of background viscosity and eddy viscosity (Km + ν in the picture below)?

Cheers,

Hoty
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kate
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Re: Vertical eddy viscosity

#4 Unread post by kate »

It is the vertical viscosity used by the model, the sum of all the bits that go into it. The details depend on which vertical mixing scheme you are using.

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zhangtianhao
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Location: Beijing Normal University

Re: Vertical eddy viscosity

#5 Unread post by zhangtianhao »

kate wrote: Thu Dec 10, 2020 5:08 pm It is the vertical viscosity used by the model, the sum of all the bits that go into it. The details depend on which vertical mixing scheme you are using.
Kate,

Thanks, I will take a try.

Cheers,

Hoty

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