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Polarity inversion line identification from SDO magnetogram 1.0

  Date Added: May 26, 2013  |  Visits: 216

Polarity inversion line identification from SDO magnetogram

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An efficient algorithm for identification of strong polarity-inversion line (SPIL) on Solar Dynamic Observatory (SDO) Helioseismic and Magnetic Imager (HMI) magnetograms.Detailed description will appear in the paper: Volobuev, D.M. StrongPolarity-Inversion Line Preceding X-class Flare, Solar Physics, 2011Initial data (65 megabyte .fits magnetograms) can be downloaded from http://hmi.stanford.edu/- SdoPIL.m script - calculates example of SPIL with 100 Gauss threshold. Threshold can changed in the script text.- select_dipoles.m function - marks SPIL pixels- fill_fire_zp.m and fill_fire.zn functions - do iteration for region growing of SPIL to high magnetic flux (center of sunspot)

Requirements: No special requirements
Platforms: Matlab
Keyword: Calculates Changed Downloaded Gauss Script Sdopilm Select Dipolesm Threshold
Users rating: 0/10

License: Shareware Size: 10 KB
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