Sun path diagrams for the equinoxes, summer and winter ...www.atmo.arizona.edu › students › fall07 › lecture_notes Sun path diagrams are a way of showing the path that you would see the sun ... will receive less energy during the day because of the lower elevation angle.
I am talking about deaths, from Covid19 caused by too little Vit D in the blood, not the number of infections.
If you want I can explain how to read the graph, it has 2 plots, and over lay graph. There are also US NIH research studies this year and prior years on Influenza and Vit D , and UK studies that confirm that Vit D blood levels have huge, important immune system controls that have huge effects on death rates for Covid19 and Influenza.