Daily(ish) Log
Aug. 4
Well I guess this is the end. My final presentation can be found
here.
Overall it was a great summer. The sun is pretty awesome.
I'll leave you with an overlay of the magnetic topology on a magnetogram from the Feb. '11 region I was working on:
July 26
Finally finished with the
Valentine's Day flare region.
July 21
Almost done withe the Feb. 2011 region. Probably could be done now if I hadn't spent so much time trying to make an mpeg that wasn't such crappy quality. Unfortunately I could not, so here is a bad quality
movie.
I basically just need to finish the borders in the big central positive area. Here's the plots of the flux through the poles at the moment:
I was also having issues with poles disappearing and then reappearing, which it turns out will completely mess up later calculations. I still have a couple that I need to fix:
The P96/P99 is in the big region I'm finishing up now, so that should be fixed soon.
Also, here is a movie of the magnetograms without any masks overlayed so you can see what's going on
here.
July 14
Here is the movie of the Dec. 2007 region I was working on: (
movie)
July 11
Still working on the Feb. 11 region. Here are graphs of the flux of each pole (threshold of 80000 Mx) and the total positive/negative fluxes.
July 6
I've started working on another region from Feb. 2011. It's an HMI as opposed to MDI magnetogram so it's a lot better quality. I'm still finishing up the rmv_vanish and rmv_flick routines and haven't started manually editing yet.
I also wrote a program to manually edit some of the regions where the user defines their own shape as opposed to just selecting everything above/below and left/right of a point.
June 29
Finally close to finished-ish with the mask for the Dec. 2007 region. Here are the fluxes:
(with a threshhold of 200,000 Mx). Looks a lot better than before. There's a weird boundary switch between P27 and P2 around timestep 45, but the flux does some weird stuff there and I can't figure out what the best way to deal with it is. Also, here's the total positive and negative (unsigned) flux that's fixed to account for the sun's rotation:
June 23
I've mostly been working on the mask for an active region in Dec. 2007. The manual labeling can be pretty time consuming. This region is also particularly weird because some of the major (negative) flux poles quickly disappear.
Here is a plot of the total positive and negative fluxes:
We can see a definited correlation between the two, but the (unsigned) negative flux is always higher.
June 8
Started to manually fix some of the labels. It takes a while.
June 7
I also made some movies. I haven't figured out how to save/post these though.
June 6
Mostly worked on smoothing out the track_flux plots with rmv_flick and rmv_vanish
Above is what it looks like at first. Each line represents the flux from a different pole. Kind of an eyesore.
Now here is the same thing with rmv_flick applied 31 times. Some of the poles that appear for only a single time step have been combined. Looks better, right?
Now with rmv_vanish applied 20 or so times and rmv_flick a few more times. Not perfect, but much better than what we started with.