[ecco-support] ECCO model

[Ponte, Rui]

Franziska,

I suspect you want to use bottom pressure in equivalent water height
units. There should be a diagnostic variable PHIBOT, which is just bottom
pressure divided by density (units m^2/s^2). To convert to equivalent
water height (in m) you should divide by the gravitational acceleration
(g=9.81 m/s^2).


--
Rui M. Ponte
Atmospheric and Environmental Research, Inc.
131 Hartwell Avenue
Lexington, MA 02421-3126 USA
781-761-2288 | www.aer.com





On 12/9/16, 12:07 AM, "ecco-support-bounces at mit.edu on behalf of Patrick
Heimbach" <ecco-support-bounces at mit.edu on behalf of
heimbach at ices.utexas.edu> wrote:

>Hello Franziska,
>
>the output usually provided with the ECCO solutions (labeled ETAN) is the
>Boussinesq sea level, i.e. a global mean steric correction (e.g.,
>following Greatbatch 1994) is required.
>
>Depending on which ECCO solution you are using, you may or may not need
>to also correct for global mean net water (volume) flux from P-E+R
>(precip-evap+runoff).
>ECCO v4 uses a nonlinear free surface and real water flux boundary
>condition, and so *no* E-P-R correction is needed. Most other (especially
>earlier) ECCO solutions use a virtual salt flux boundary condition, in
>which case a correction would be needed.
>
>Another correction would be required to the field ETAN if you consider
>ice-covered regions, where sea ice load displaces the sea surface.
>
>-Patrick
>
>
>> On Dec 7, 2016, at 4:01 AM, Göttl, Franziska <franziska.goettl at tum.de>
>>wrote:
>>
>> Hello,
>>
>> I want to use the ECCO model to reduce the leakage effect within the
>>GRACE data processing. Do you also provide equivalten water heights from
>>ECCO or do I have to use the ssh from ECCO and reduce the steric effect
>>by my self?
>>
>> Thank you very much
>> Franziska Göttl
>> _______________________________________________
>> ecco-support mailing list
>> ecco-support at mit.edu
>> http://mailman.mit.edu/mailman/listinfo/ecco-support
>
>
>_______________________________________________
>ecco-support mailing list
>ecco-support at mit.edu
>http://mailman.mit.edu/mailman/listinfo/ecco-support


________________________________

This email is intended solely for the recipient. It may contain privileged, proprietary or confidential information or material. If you are not the intended recipient, please delete this email and any attachments and notify the sender of the error.