<div dir="ltr">Hello Ou, <div><br></div><div><br></div><div>Thank you for the quick responses to my questions; they succinctly answer what I am trying to accomplish. I was not previously aware of the 'SIarea' dataset so I'll be able to incorporate this into my analysis to differentiate ice coverages. </div><div><br></div><div>Best, </div><div><br></div><div><br></div><div>Justin </div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Mar 23, 2023 at 4:02 PM <<a href="mailto:ecco-support-request@mit.edu">ecco-support-request@mit.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Send ecco-support mailing list submissions to<br>
<a href="mailto:ecco-support@mit.edu" target="_blank">ecco-support@mit.edu</a><br>
<br>
To subscribe or unsubscribe via the World Wide Web, visit<br>
<a href="https://mailman.mit.edu/mailman/listinfo/ecco-support" rel="noreferrer" target="_blank">https://mailman.mit.edu/mailman/listinfo/ecco-support</a><br>
or, via email, send a message with subject or body 'help' to<br>
<a href="mailto:ecco-support-request@mit.edu" target="_blank">ecco-support-request@mit.edu</a><br>
<br>
You can reach the person managing the list at<br>
<a href="mailto:ecco-support-owner@mit.edu" target="_blank">ecco-support-owner@mit.edu</a><br>
<br>
When replying, please edit your Subject line so it is more specific<br>
than "Re: Contents of ecco-support digest..."<br>
<br>
<br>
Today's Topics:<br>
<br>
1. Concern Regarding Closure of Heat and Freshwater Flux for<br>
ECCOV4R4 (Justin Campbell)<br>
2. Re: [EXTERNAL] Concern Regarding Closure of Heat and<br>
Freshwater Flux for ECCOV4R4 (Wang, Ou (US 329B))<br>
<br>
<br>
----------------------------------------------------------------------<br>
<br>
Message: 1<br>
Date: Thu, 23 Mar 2023 14:37:29 -0500<br>
From: Justin Campbell <<a href="mailto:campbelljustin989@gmail.com" target="_blank">campbelljustin989@gmail.com</a>><br>
To: <a href="mailto:ecco-support@mit.edu" target="_blank">ecco-support@mit.edu</a><br>
Cc: "Heimbach, Patrick" <<a href="mailto:heimbach@oden.utexas.edu" target="_blank">heimbach@oden.utexas.edu</a>><br>
Subject: [ecco-support] Concern Regarding Closure of Heat and<br>
Freshwater Flux for ECCOV4R4<br>
Message-ID:<br>
<<a href="mailto:CAHp-uWW1DTOz8rVS6yLTBtr5TLXVkE3c4qsLGa9Ri1JF9QME1g@mail.gmail.com" target="_blank">CAHp-uWW1DTOz8rVS6yLTBtr5TLXVkE3c4qsLGa9Ri1JF9QME1g@mail.gmail.com</a>><br>
Content-Type: text/plain; charset="utf-8"<br>
<br>
Hello,<br>
<br>
<br>
My name is Justin Campbell; I am a research engineering assistant working<br>
under Patrick Heimbach on a data analysis project using ECCOv4r4 datasets<br>
from the ECCO Drive. There are a few questions that I have with regards to<br>
the datasets that close the heat and freshwater flux budgets for the ocean<br>
surface:<br>
<br>
1) In developing a residual plot of the net heat flux through the ocean<br>
surface from sea-ice-ocean-surface transfer (in areas with ice cover) and<br>
from atmosphere-ocean-surface transfer (in areas without ice cover) it<br>
appears the dataset, 'EXFqnet', is not closed by taking the sum of the<br>
datasets: 'EXFlwnet', 'EXFswnet', 'EXFhl', and 'EXFhs'. Are there any<br>
datasets that I am missing here?<br>
<br>
2) Similarly, in developing a residual plot of the net freshwater flux<br>
through the ocean surface, can I be provided with a confirmation as to<br>
whether or not the dataset, 'EXFempmr' is closed by taking the sum of<br>
the datasets: 'EXFroff', 'EXFevap', and 'EXFpreci'?<br>
<br>
3) Lastly, is there documentation available that differentiates individual<br>
grid points in these datasets that correspond to areas with ice cover from<br>
those that do not over time? I would like to be able to use this<br>
distinction in my analysis.<br>
<br>
<br>
Best Regards,<br>
<br>
<br>
<br>
Justin Campbell<br>
-------------- next part --------------<br>
An HTML attachment was scrubbed...<br>
URL: <<a href="http://mailman.mit.edu/pipermail/ecco-support/attachments/20230323/aae3c850/attachment-0001.htm" rel="noreferrer" target="_blank">http://mailman.mit.edu/pipermail/ecco-support/attachments/20230323/aae3c850/attachment-0001.htm</a>><br>
<br>
------------------------------<br>
<br>
Message: 2<br>
Date: Thu, 23 Mar 2023 21:02:10 +0000<br>
From: "Wang, Ou (US 329B)" <<a href="mailto:ou.wang@jpl.nasa.gov" target="_blank">ou.wang@jpl.nasa.gov</a>><br>
To: "ECCO support list, wider membership" <<a href="mailto:ecco-support@mit.edu" target="_blank">ecco-support@mit.edu</a>><br>
Cc: "Heimbach, Patrick" <<a href="mailto:heimbach@oden.utexas.edu" target="_blank">heimbach@oden.utexas.edu</a>><br>
Subject: Re: [ecco-support] [EXTERNAL] Concern Regarding Closure of<br>
Heat and Freshwater Flux for ECCOV4R4<br>
Message-ID:<br>
<<a href="mailto:BLAPR09MB617990BF11D872619D14B61AC4879@BLAPR09MB6179.namprd09.prod.outlook.com" target="_blank">BLAPR09MB617990BF11D872619D14B61AC4879@BLAPR09MB6179.namprd09.prod.outlook.com</a>><br>
<br>
Content-Type: text/plain; charset="windows-1252"<br>
<br>
Hello Justin,<br>
<br>
The answers to your first two questions are yes, both ?EXFqnet? and ?EXFempmr? can be closed only by these components you listed in your email. There are no other flux components to close EXFqnet? and ?EXFempmr?. I wonder if you might miss the minus sign in some of the components in your calculation. The exact equations to close ?EXFqnet? and ?EXFempmr? are as follows. Also, see my answer to your third question below.<br>
<br>
1) EXFqnet = -EXFhs -EXFhl + EXFlwnet + EXFswnet<br>
2) EXFempmr = EXFevap - EXFpreci - EXFroff<br>
3) There are no documentation that exactly differentiates ice-covered and ice-free grid points at each time step. However, you can use the daily-mean SIarea to differentiate ice-covered and ice-free grid points on daily mean basis.<br>
<br>
Best,<br>
Ou Wang<br>
<br>
From: ecco-support <<a href="mailto:ecco-support-bounces@mit.edu" target="_blank">ecco-support-bounces@mit.edu</a>> on behalf of Justin Campbell <<a href="mailto:campbelljustin989@gmail.com" target="_blank">campbelljustin989@gmail.com</a>><br>
Date: Thursday, March 23, 2023 at 12:38 PM<br>
To: <a href="mailto:ecco-support@mit.edu" target="_blank">ecco-support@mit.edu</a> <<a href="mailto:ecco-support@mit.edu" target="_blank">ecco-support@mit.edu</a>><br>
Cc: Heimbach, Patrick <<a href="mailto:heimbach@oden.utexas.edu" target="_blank">heimbach@oden.utexas.edu</a>><br>
Subject: [EXTERNAL] [ecco-support] Concern Regarding Closure of Heat and Freshwater Flux for ECCOV4R4<br>
Hello,<br>
<br>
<br>
My name is Justin Campbell; I am a research engineering assistant working under Patrick Heimbach on a data analysis project using ECCOv4r4 datasets from the ECCO Drive. There are a few questions that I have with regards to the datasets that close the heat and freshwater flux budgets for the ocean surface:<br>
<br>
1) In developing a residual plot of the net heat flux through the ocean surface from sea-ice-ocean-surface transfer (in areas with ice cover) and from atmosphere-ocean-surface transfer (in areas without ice cover) it appears the dataset, 'EXFqnet', is not closed by taking the sum of the datasets: 'EXFlwnet', 'EXFswnet', 'EXFhl', and 'EXFhs'. Are there any datasets that I am missing here?<br>
<br>
2) Similarly, in developing a residual plot of the net freshwater flux through the ocean surface, can I be provided with a confirmation as to whether or not the dataset, 'EXFempmr' is closed by taking the sum of the datasets: 'EXFroff', 'EXFevap', and 'EXFpreci'?<br>
<br>
3) Lastly, is there documentation available that differentiates individual grid points in these datasets that correspond to areas with ice cover from those that do not over time? I would like to be able to use this distinction in my analysis.<br>
<br>
<br>
Best Regards,<br>
<br>
<br>
<br>
Justin Campbell<br>
-------------- next part --------------<br>
An HTML attachment was scrubbed...<br>
URL: <<a href="http://mailman.mit.edu/pipermail/ecco-support/attachments/20230323/a884fb8f/attachment.htm" rel="noreferrer" target="_blank">http://mailman.mit.edu/pipermail/ecco-support/attachments/20230323/a884fb8f/attachment.htm</a>><br>
<br>
------------------------------<br>
<br>
Subject: Digest Footer<br>
<br>
_______________________________________________<br>
ecco-support mailing list<br>
<a href="mailto:ecco-support@mit.edu" target="_blank">ecco-support@mit.edu</a><br>
<a href="https://mailman.mit.edu/mailman/listinfo/ecco-support" rel="noreferrer" target="_blank">https://mailman.mit.edu/mailman/listinfo/ecco-support</a><br>
<br>
<br>
------------------------------<br>
<br>
End of ecco-support Digest, Vol 84, Issue 9<br>
*******************************************<br>
</blockquote></div>