Talk:Pacific Meridional Mode

Two sources on which I have questions
This source discusses correlations between PMM and precession and this one between PMM and insolation but I am not entirely certain exactly what the correlation is, as the sources discuss PMM in standalone paragraph with no clear connection to high/low precession/insolation values. Jo-Jo Eumerus (talk) 20:06, 5 December 2020 (UTC)

More graphics might make this easier to understand
As someone who has never heard of the subject before I found this article very encyclopedic but rather hard to understand. I wonder if more graphics, or even an animated graphic, might help.

I am not artistic myself but for a few graphics in the past I have explained what I thought was needed to Graphic Lab and they have drawn a very good graphic. For example for the simple English article about the automobile Ian Furst drew an excellent schematic https://simple.wikipedia.org/wiki/Automobile#/media/File:Simple_Electric_Car_propulsion_diagram.svg Chidgk1 (talk) 08:06, 14 February 2021 (UTC)
 * A lot more graphs would certainly help, but we'd need some pretty precise ideas as to what they would show. Which questions would in your opinion be best answered by a graph? Jo-Jo Eumerus (talk) 11:11, 14 February 2021 (UTC)


 * Please correct me if I have misunderstood as I am completely new to the subject. But if I understand right this is a variation over the year, a snapshot of which is shown in the existing diagram. So how about if you ask the graphics wizkids to make an animation showing how it "develops during the winter months and spreads southwestward towards the equator and the central and western Pacific during spring" as you descrbe? Presumably they would just need to vary the direction and length of the wind arrows and the color of the sea under your instructions? And the animation would name the changing months of the year. Also when I first glanced at the diagram I thought the arrows were the actual wind speed - but now if I understand right they are a variation on the average wind? I had to look up the meaning of "regression pattern" but I am not sure how to best describe that so people understand. Chidgk1 (talk) 18:19, 15 February 2021 (UTC)
 * It's a good understanding. I haven't seen a source that shows a graphical progression, though, so I am not sure whether someone could make a graphic. Jo-Jo Eumerus (talk) 13:40, 16 February 2021 (UTC)


 * There is a queue of requests for the graphics wizards so it may take a while. But once they are on the case I have found them very good. I did not find anything very close but there are a couple of existing animations which you might refer to when explaining what is needed (see right) NASA Finds 2011 Ninth-Warmest Year on Record (hd video).webm and Wind vectors and monthly average CO2 concentrations in 2003.ogv and there are a lot of video diagrams on Wikimedia and UK Met Office on Youtube. As you have such a good understanding of the subject I am sure with the aid of the article and perhaps a few rough sketches you could explain what might be useful. When you say "and the reverse during its negative state" is that simply a matter of reversing the arrows and colors on the diagram? If you are going for FA in future I think it would be worth a try. Chidgk1 (talk) 06:43, 11 March 2021 (UTC)
 * Sure, but we need some template images. I am thinking Figure 1d-g, Figure 1 and Figure 2 could be useful not I am not sure on their copyright status. Jo-Jo Eumerus (talk) 15:07, 11 March 2021 (UTC)
 * I suspect by the time the animators have done their stuff the result will be sufficiently different from the template images for copyright not to be a problem. When the final version is put on Wikimedia Commons it could be described as "adapted from ....." in order to credit them. Chidgk1 (talk) 14:36, 14 March 2021 (UTC)
 * I've put such a request in. Jo-Jo Eumerus (talk) 16:03, 14 March 2021 (UTC)

Source for possible inclusion
...here. Jo-Jo Eumerus (talk) 16:34, 4 January 2022 (UTC)