[MITgcm-devel] heat fluxes

[Chris Hill]

Martin,

 Not sure what is wrong. Can you compare your qnet with monthly
clmatologies here

http://ingrid.mit.edu/SOURCES/.DASILVA/.SMD94/.climatology/.netheat/figviewer.html?map.url=X+Y+fig-+colors+-fig

 and an annual average here

http://ingrid.mit.edu/SOURCES/.DASILVA/.SMD94/.climatology/.netheat/figviewer.html?map.url=X+Y+fig-+colors+-fig

Chris

 
On 6/1/05, Martin Losch <mlosch at awi-bremerhaven.de> wrote:
> Hi,
> I found a problem in the forcing data that may concern the suite of
> experiments that are based on global_ocean.90x40x15, but I am not sure:
> 
> The ncep forcing fields in global_ocean.90x40x15 are derived from NCEP
> data that I (or someone else) downloaded from the LDEO climate data
> server in 2001 or 2002 (can't remember). I can no longer find them
> there, but that's a different story. The download data is in
> fjord.mit.edu:/data3/mlosch/ncep_data
> as netcdf files. There's also a matlab-script that reads the data and
> create flux files such as ncep_qnet.bin for a global_ocean.90x40x15
> configuration (or whatever configuration you prescribe in the structure
> grd). I defined qnet as the sum of solar radiation, long wave flux,
> latent heat flux and sensible heat flux.
> 
> When you integrate the temporal mean of qnet zonally and cumulatively
> integrate it meridionally you should get the implied ocean heat flux as
> a function of latitude, that you than can compare to Trenberth+Caron
> 2001, J.Clim, for example. Unfortunately this curve hardly gives any
> poleward heat flux in the southern hemisphere (other than
> Trenberth+Caron etc. find), so I assume, something went wrong there. I
> repeated the computations with the "raw" data from the netcdf files in
> /data3/mlosch/ncep_data, but the result is the same: hardly any
> poleward heat flux in the Southern hemisphere. (I am attaching a figure
> for the computation on the 90x40x15 grid to give you an idea what I
> mean, never mind the additional lines on that plot). Where do I go
> wrong?
> 
> Martin
> 
> 
> 
> 
> 
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