Looking at air moving into the up area in the last two times four ten years - A move-with-parts look

Here we will look at how the air moves into the up area and how it’s moves have changed over the last two times four ten years. We know that the up area air is not alone, but it is a part of the whole sky air. We can see that in the early year when not clean air is moved from areas more down to the up area and the air in the up area is becoming less nice.

For our work we use a computer to add up the time how long air parts stay in the up area and to follow air parts to see where they come from and where they go to. So we can also find out where the not clean air comes from. Maybe the areas where the not clean air comes from has changed over time?

Our computer tells us that air parts usually stay in the up area for around one week in month one of the year and around two weeks in month seven of the year. However, this is not the same in the whole up area and it has changed in the last two times four ten years. It has changed most in month four of the year, when the air parts stay shorter in the up area now than they used to.