[MITgcm-support] The Net Heat Flux

smaeilpour saeid_gal at yahoo.com
Mon May 29 17:01:18 EDT 2017

Hi everyone,

for calculating The net heat flux at the ocean-atmosphere interface, which two equations below are correct?

(1) QNet=Qshortwave-Qlongwave-Qlaten-Qsensible
(2) QNet=Qshortwave+Qlongwave+Qlaten+Qsensible

because references have mentioned both of them.
the values of my data flux into all Q are either negative or positive. should i have to add them as Algebraic sum [as (1) equation]? or i have to subtract them from each other [as (2) equation]? 
Thank you in advance for any help.


On Thu, 5/25/17, Menemenlis, Dimitris (329C) <Dimitris.Menemenlis at jpl.nasa.gov> wrote:

 Subject: Re: [MITgcm-support] using ECCOv4 exf inputs with a different model
 To: "mitgcm-support at mitgcm.org" <mitgcm-support at mitgcm.org>
 Date: Thursday, May 25, 2017, 11:15 AM
 One would have to rotate/interpolate to a
 regular latitude/longitude grid (the most flexible approach)
 or to the specific grid that you want to drive.
 I think this is of
 sufficiently general interest so that we could ask Ou or
 Hong to produce such forcing fields.
 If your domain is between 70S and 56N, all one
 has to do is to get rid of the Northern polar cap and
 Southern tripolar grid.
 Dimitris Menemenlis
 > On May 25, 2017, at 8:00 AM, Ryan
 Abernathey <ryan.abernathey at gmail.com>
 > Hello,
 > I would like to use
 the exf input forcing dataset produced by Gael for ECCOv4
 (e.g. ECCO_v4_r2/forcing_baseline2/eccov4r2_rain_2010.data,
 etc.) with a different model with a different grid
 > My
 current understanding is that this is basically impossible
 because the ECCOv4 inputs are already interpolated to the
 llc90 grid, rather than a regular lat lon grid.
 > Am I right? Is there
 a workaround?
 > Ryan
 > p.s. If anyone can point me to a global,
 modern set of exf input data for MITgcm based on ECMWF,
 NCEP, or CORE, I would sincerely appreciate it.
 > MITgcm-support mailing list
 > MITgcm-support at mitgcm.org
 > http://mitgcm.org/mailman/listinfo/mitgcm-support
 MITgcm-support mailing list
 MITgcm-support at mitgcm.org

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