[ecco-support] ECCO bottom temperature bias in the Weddell Sea

[Paola Cessi]

Hi Shanice,

I do not have an answer to your question, but have you tried to look at other analyses of bottom water temperature? Greg Johnson has written many papers about it. You could start by looking at this paper…

https://journals.ametsoc.org/jcli/article/26/16/6105/33911/Antarctic-Bottom-Water-Warming-and-Freshening <https://journals.ametsoc.org/jcli/article/26/16/6105/33911/Antarctic-Bottom-Water-Warming-and-Freshening>

Paola

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Paola Cessi                                                         Tel: +1 858 534 0622 
Scripps Institution of Oceanography                  Fax: +1 858 534 8045
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> On Jun 12, 2020, at 8:45 PM, Shanice T Bailey <stb2145 at columbia.edu> wrote:
> 
> Hi ECCO Consortium,
> 
> My name is Shanice Bailey. I am an Earth & Environmental Science graduate student at Columbia University advised by Ryan Abernathey. I've compared averaged bottom temperatures within the Weddell Sea region from ECCO's dataset, as well as from the World Ocean Atlas 2018 datasets for two separate time periods (1981-2010 and 2005-2017). Below I have attached a figure of ECCO and WOA's bottom temperature spatial distribution as well as their difference. From the figure you can see that ECCO is overall warmer than the observational dataset. I am emailing to ask if you may know the reason why ECCO is representing a 0.5-2˚C warmer temperature bias. I still consider myself a novice user of ECCO so I was hoping you may shed some light on this. I would appreciate any insight, and thank you for your time.
> 
> 
> Best,
> 
> Shanice T. Bailey
> <bottom-temperatures.png>_______________________________________________
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