[MITgcm-support] Where can download monthly net heat flux data directly?

[Martin Losch]

Brainf,

you'll have to create your own qnet (unless you want to use the  
fluxes from say the tutorial_global_oce_latlon experiment, but these  
are on a 4deg grid). I use ncep data, as you suggested, which I  
downloaded from the ingrid data server at Columbia University  
( http://ingrid.ldeo.columbia.edu/ ). However, I cannot tell you the  
exact path, because I never find these data myself, ask their  
support. And your formula is right too, but you have to make sure  
that the sign convection is correct. MITgcm use + for upward flux  
(out of the ocean!). I use the second formula for the data that I  
downloaded.

Martin

On 22 Dec 2006, at 03:21, Brainf wrote:

> Hi,
>    I want make Qnet.bin for my interest area (1/4-deg). Does the  
> net heat flux data can  be downloaded directly ?
> if We must count it by ourselves, Where to download net longwave  
> radiation flux (NLWRF)? I found  NCEP "net longwave  
> radiation"( nswrs.mon.mean.nc) in http://www.cdc.noaa.gov/cdc/ 
> data.ncep.reanalysis.derived.surfaceflux.html ,
> But the file name has no "flux" word , is the flux data what I  
> need? The same question with net longwave radiation Monthly Mean.
>    And than use the formula NHF = NSWRF - (NLWF + NSHF + NHLF). Is  
> this formula correct? Or NCEP data has right sign, I just use NHF =  
> NSWRF + NLWF + NSHF + NHLF is ok?  NHF=net heat flux, NLWRF=net  
> longwave radiation flux ,
> net sensible heat flux (NSHF), net latent heat flux (NHLF).
>
>
>
>
> Best regards.
>
> Brainf
> brainf at 163.com
> 2006-12-22
>
>
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