[ecco-support] [EXTERNAL] Reproducing ECCO v4 release 5

[Samar Khatiwala]

Hi Hong,

Thanks for the quick response! I may just wait for the full optimized
version then.

Thanks,

Samar

On Fri, Nov 21, 2025 at 10:00 AM Zhang, Hong (US 398K) <
hong.zhang at jpl.nasa.gov> wrote:

>
>
> On Nov 20, 2025, at 4:06 PM, Samar Khatiwala <samkat6 at gmail.com> wrote:
>
> Dear ECCO group,
>
> I was wondering if and when you plan to make available data and
> instructions to reproduce the v4 release 5 solution. Usually, there's a
> very convenient howto document to reproduce results but the most recent one
> I could find is for V4r4.
>
> Hi Samar,
> A working version of V4r5 is available  here
> llc_hires/llc_90/ecco_v4r5/readme_v4r5_68o.txt at master ·
> MITgcm-contrib/llc_hires
> <https://github.com/MITgcm-contrib/llc_hires/blob/master/llc_90/ecco_v4r5/readme_v4r5_68o.txt>
> github.com
> <https://github.com/MITgcm-contrib/llc_hires/blob/master/llc_90/ecco_v4r5/readme_v4r5_68o.txt>
> [image: apple-touch-icon-180x180-a80b8e11abe2.png]
> <https://github.com/MITgcm-contrib/llc_hires/blob/master/llc_90/ecco_v4r5/readme_v4r5_68o.txt>
> <https://github.com/MITgcm-contrib/llc_hires/blob/master/llc_90/ecco_v4r5/readme_v4r5_68o.txt>
> One caveat:
> The period of 1992-2017 is fully optimized
> while year 2020-2024 is not optimized
> (simply an iteration 0, ie,
> By applying the climatological seasonal mean of previous adjustments to
> raw forcing).
> Ou Wang is working on a fully optimized 1992-2024 state estimate
> and it’s coming soon ...
>
>
> Hope it works for you.
> Hong
>
> _______________________________________________
> ecco-support mailing list
> ecco-support at mit.edu
> https://mailman.mit.edu/mailman/listinfo/ecco-support
>
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