Montana State University Solar REU Program 2010
Dustin Hickey
Home Log

Week 2
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Week 5
Week 6
Week 7

Friday, July 16

I kept doing the same thing today. I have succesfully transformed the magentic data to an array that is the same as the holemap array. Although I have done this, I am still having issues. Around the poles the transformation can contort things a lot. As a result, when I try to fill in these contorted contours the wrong parts will be filled in. As a fix I am eliminating the magnetic data that is outside of the 80 degrees latitude in both hemisperes.

Thursday, July 15

Today I went and watched the Borealis group launch their balloon with their experiments attached to it. This took up the entire day so I will continue working on the code tomorrow.

Wednesday, July 14

I am continuing to work on my program. As soon as I get one part to work, another part won't or I'll realize that I forgot to take something into account. I have been contouring the open field regions using the idl program contour. I then take the positions that it gives me I convert them to POS coordinates. I then fill in these contours using pollyfillv, another idl program. I'm getting closer but I am still working out the kinks. I have to use part of the contour program to individually select each separate open region so that when I fill in the contours it is filling in the right areas. The way contour does this is a little tricky so I am trying to get it to work successfully.

Tuesday, July 13

As has become the norm, changing my program to do this was not as easy as originally anticipated. At this point I should realize that there isn't going to be an easy fix for anything. My goal is to create a mask for both the coronal hole map and the open region map. The masks will have 1's where there are holes/open regions and 0's where they aren't. I can then multiply them together in order to see where they overlap. These masks should be in POS coordinates. The problem is that the two things I am comparing don't work well together. I am working to convert the open regions in longitude and lattitude coordinates to POS. This conversion is the hardest part.

Monday, July 12

Today  I began figuring out how I can make changes in my program in order to quantify my results better. Up until now I have been determining if the coronal holes match up with the open field regions by sight alone. It was brought to my attention that phrases like "they match up pretty well" doesn't give a lot of information. Thus I have started to find a way to find the percentage of coronal holes that overlap open field regions.