The NWRA Classification Infrastructure: description and extension to the Discriminant Analysis Flare Forecasting System (DAFFS) | Journal of Space Weather and Space Climate

Developing New Space Weather Tools: Transitioning fundamental science to operational prediction systems

Open Access

Fig. 3

An image of NOAA AR 11283 at 2011.09.07 21:48 TAI as an SDO/HARP #833), showing the vertical component of the magnetic field B_z from SDO/HMI (red/positive, blue/negative contours at ±100 ⁡⁡ Mx cm⁻²); axes are in arcsec, and green/yellow contours indicate the vertical current density J_z at ±50,100 m Am⁻². The HARP “active pixel” area is outlined in grey.

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