SunPy - AGU 2011 and SPD 2012

Observational Characteristics

from Warmuth et al. (2010)

• "We stress that all studied events show the same basic characteristics: the signatures in all wavelength ranges – Ha, HeI, EUV, and SXR – are consistent with a single underlying physical disturbance. In all cases, the disturbance is decelerating. This is seen from the combined kinematical curves as well as in the individual data sets from the various spectral channels.
• "There is a relation between the amount of deceleration and propagation speeds: faster waves tend to decelerate more strongly."

from Warmuth et al. (2004)

• Fitting the profiles using a second-order polynomial fit (r = r0 + v0t + 1/2a0*t^2) for 12 events.
• The mean parameters were found to be v0 = 933 +/- 252 km/s, a0 = −1495 +/- 1262 m/s^2.

from Long et al. 2011

• "Significant pulse broadening was also measured using both STEREO ( 55 km/s) andSDO ( 65 km/s) observations."

Download AGU 2011 test data from: http://www.sunpy.org/research/agu-2011/testdata1.zip

Download SPD 2012 test data from: http://umbra.nascom.nasa.gov/people/ireland/Data/eitwave/jp2/20110601_02_04.tar.gz

References

• Hough Transform
• Mendelev list of papers
• The Kinematics and Energetics of Globally-propagating Coronal Disturbance