Data assimilation

Questions about modifying the MPAS-Atmosphere code, and general discussion of MPAS code structure and development
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hesselmans
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Data assimilation

Post by hesselmans » Mon Nov 08, 2021 9:54 am

Currently I am assimilating local meaurements and satellite data (scatterometer) in a nested regional WRF model.
MPAS can be run as a limited-area or regional model. Is it possible to assimilate local measurements in this MPAS version?
If this is the case, which data-assimilation techniques are available: nudging, 3DVAR, 4DVAR???

mgduda
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Joined: Mon Feb 26, 2018 7:35 pm

Re: Data assimilation

Post by mgduda » Tue Nov 23, 2021 5:22 pm

MPAS-Atmosphere can be run for both global and limited-area domains. Two data assimilation efforts with support for MPAS-Atmosphere that I'm aware of are DART and JEDI, though I've never personally used either of these.
NCAR/MMM

hesselmans
Posts: 17
Joined: Mon Aug 13, 2018 2:43 pm
Location: Netherlands
Contact:

Re: Data assimilation

Post by hesselmans » Wed Nov 24, 2021 1:21 pm

Dear Michael, thanks for answering. It seems that MPAS is not yet used for operational work, but more like an advanced scientific tool.
Do you agree? Are you aware of operational usage of MPAS?

mgduda
Posts: 681
Joined: Mon Feb 26, 2018 7:35 pm

Re: Data assimilation

Post by mgduda » Fri Dec 03, 2021 5:46 pm

I think the statement that MPAS is primarily and advanced scientific research tool is not entirely inaccurate. The only operational use of MPAS-Atmosphere that I'm aware of is by IBM / The Weather Company, where the system in which MPAS-Atmosphere is used is called GRAF.
NCAR/MMM

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