[MITgcm-support] EtaN and EtaH in pickup file: which one to update when assimilating altimeter SSHA

[Siva Reddy Sanikommu]

Hi,
I have ETAN and ETAH in my pickup file. Which variable should I update in
the pickup file when I assimilate satellite altimeter SSHA observations? Is
it ETAN or ETAH or both?

BTW, I have already adjusted the SSHA observations for mean dynamic
topographies (MDT). And, with a revised OBCs scheme, time variations of
domain average ETA are taken care by adding a constant of integration,
following the explanation at (
http://mailman.mitgcm.org/pipermail/mitgcm-support/2013-April/008293.html).

Thanks in advance.
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*Dr. Siva Reddy Sanikommu*

*Research Scientist*

*Physical Sciences and Engineering (PSE) Division*

*Room # 4402, Building #1*
*King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi
Arabia*
*Mobile: +966 549594174*
*off: +966 12 8080669*

*Alt.Email: sivamtech07 at gmail.com <sivamtech07 at gmail.com>*

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