[MITgcm-support] using MITgcm to simulate hydrothermal venting

[Klymak Jody]

An alternative to two-way nesting is to simply coarsen the resolution outside your plumes.   In this case presumably you want to nest to ensure a large ambient reservoir for the plume to flow into versus worrying about large scale physics in the outer domain.  

Cheers.  Jody

Sent from my iPhone

> On Jul 23, 2015, at 10:30, Ryan Abernathey <ryan.abernathey at gmail.com> wrote:
> 
> Guangyu,
> 
> Yes, MITgcm is definitely appropriate for what you want to do, for all the reasons you give (flexible configurations, non-hydrostatic capability). The configuration you described will be computationally expensive but do-able. The deep convection tutorial would probably be a good place to start:
> http://mitgcm.org/public/r2_manual/latest/online_documents/node142.html
> 
> I don't know about nesting. One-way nesting is possible using the open boundary package (OBCS). I don't know the status of two-way nesting. I think people are working on it, but there is no example in the verification experiments.
> 
> Good luck. Sounds like a cool project.
> 
> -Ryan
> 
> 
> 
> 
> 
>> On Thu, Jul 23, 2015 at 12:22 PM, xuguangyu <xupeng_66 at hotmail.com> wrote:
>> Dear Sir/Madam,
>> 
>> My name is Guangu Xu, a Ph.D. student in the department of marine and coastal sciences at Rutgers University. I am currently preparing a proposal on a numerical study of the near-ridge dispersal of hydrothermal plumes at the Endeavour Segment on the Juan de Fuca Ridge. I am fairly new to ocean modeling and am writing to ask if MITgcm is the appropriate model for me to use. So here is a little bit more details of my proposed study. 
>> 
>> The main goal of my study is to investigate the near-ridge (up to 20 km off axis) dispersal of the neutrally buoyant hydrothermal plume. What MITgcm appeals to me is the non-hydrostatic capability that is needed to simulate the vertical convection caused by hydrothermal venting. Right now the model domain I am trying to use is a 10 by 10 km square with 50 m horizontal resolution. I am planning to add seafloor buoyancy sources in the model to mimic the venting from known hydrothermal vents. I am also curious to know if I can use non-hydrostatic modeling in a smaller grid near the vent sources with higher resolution, which is nested in a larger grid over which hydrostatic modeling is performed. I am thinking this measure, if possible, can potentially save a lot of computational time.
>> 
>> I am interested to know if MITgcm is the appropriate model to use for my research purpose. 
>> 
>> I will be very grateful for your help.
>> 
>> Best,
>> 
>> Guangyu 
>> 
>> 
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