FW: [MITgcm-support] obcs for lock-exchange problem (fwd)

[Chris Hill]

James,

 These sound like great bits of code for the MITgcm_contrib/ area of CVS.
Would you be interested in adding them in there? I could help you. The stuff
in MITgcm_contrib can be rough around the edges.

Chris 

> -----Original Message-----
> From: mitgcm-support-bounces at mitgcm.org 
> [mailto:mitgcm-support-bounces at mitgcm.org] On Behalf Of James 
> B. Girton
> Sent: Tuesday, April 20, 2004 6:23 PM
> To: mitgcm-support at mitgcm.org
> Subject: Re: FW: [MITgcm-support] obcs for lock-exchange problem (fwd)
> 
> samar khatiwala wrote:
> 
> >  
> >
> >>i/m still not clear as to exactly which OBCS schemes are 
> available. any pointers?
> >>    
> >>
> >
> >Basically, you can have
> >(1) a radiation BC - only Orlanski is implemented as far as I know
> >(2) prescribed, including sponge, BC.
> >
> >Also, there is a variant of (1) that only radiates the "wave" or 
> >variable part of the solution by first subtracting out a mean flow. 
> >This is probably not in the standard obcs package, but it 
> exists if you 
> >are interested.
> >  
> >
> I've made some modifications to the radiation condition that 
> use an a priori specified wavespeed (rather than the adaptive 
> Orlanski condition which in my problems tends to introduce 
> more noise than it lets out...), and another version with 
> separate (constant) wavespeeds for external and internal 
> modes. I'm happy to send my code to anyone who wants it, 
> although I haven't yet done the necessary homework to make an 
> "official" 
> contribution to the code database...
> 
> -James
> 
> --
> -----------------------------------------------------------
> James B. Girton, Postdoctoral Investigator Department of 
> Physical Oceanography, MS 29 Woods Hole Oceanographic 
> Institution, Woods Hole, MA 02543 Clark 214B, Phone: 
> 508-289-2632, FAX: 508-457-2163 girton at whoi.edu, 
> http://ohm.apl.washington.edu/~girton
> -----------------------------------------------------------
> 
> 
> 
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