WP2: Active Region Properties as Predictors of Flare Activity
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Data SourceProperty GroupDeveloperStatus
SWPC catalogues  (To do / In progress / Under testing / Delivered)
 Solar Region Summary propertiesTCDDelivered
DetailsGOES X-ray eventsTCDDelivered
LOS magnetograms   
 SMART-derived properties (Ahmed et al., 2013)TCDIn progress
 SMART delta finder (Padinhatteeri et al., 2015)TCDTo do
DetailsEffective connected magnetic field strength (Beff ) (Georgoulis & Rust, 2007)AADelivered
DetailsFractal dimension (Georgoulis, 2012)AADelivered
DetailsMulti-fractal structure function s(q) inertial range index k (Georgoulis, 2012)AADelivered
DetailsFourier power spectral index (Guerra et. al., 2015)TCD

Delivered

DetailsCWT power spectral index (Hewett et. al., 2008)TCDDelivered
DetailsGeneralised correlation dimension (Georgoulis, 2012)AADelivered
DetailsHolder exponent h (Conlon et al., 2010)AADelivered
DetailsHausdorff dimension D(h) (Conlon et al., 2010)AADelivered
 WTMM (Conlon et al., 2010)TCDUnder testing (further investigated in WP6)
DetailsDecay index (Zuccarello et al. 2014)TCDDelivered
DetailsMagnetic polarity inversion line characteristics (Mason & Hoeksema 2010)TCDDelivered
Details3D magnetic null point (Greene 1992)TCDDelivered
DetailsR (Schrijver 2007)TCDDelivered
DetailsLWLSG (Falconer et al. 2008) *TCDDelivered
DetailsIsing energy (Ahmed et al. 2010)AADelivered
DetailsWGM and Sl-f (Korsos et al. 2015)AADelivered
DetailsMagnetic helicity injection rate proxy (Park et al. 2013)TCDDelivered
Vector magnetograms   
DetailsSHARP properties (Bobra et al. 2014)TCDDelivered
DetailsMagnetic helicity injection rate (Berger & Field 1984)TCDDelivered
Details  Magnetic energy injection rate (Kusano et al. 2002)TCDDelivered
DetailsNon-neutralized currents (Georgoulis et al., 2012)AADelivered
DetailsFlow field characteristics (Deng et al. 2006; Wang et al. 2014)TCDDelivered
 Magnetic bipolar feature characteristicsTCDUnder testing (further investigated in WP6)
Intensity images   
 Flow field characteristicsTCDUnder testing (further investigated in WP6)
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2 Comments

  1. Etienne Pariat

    A few comments, following the discussin at the PMB meeting:

    DATA with LOS magnetic field:

    • The helicity injection rate requires the computation of the flux transport velocity field  (cf e.g. Welsh et al 2007). So the flux transport velocity field is a type of data which is obtained for "free" with that method. Maybe a metric base on that field can be used/tested (e.g. mean, maximum, etc...)

    DATA with vector magnetogram:

    • Having the vector magnetic field allows to improve the computation of the flux transport velocity field (e.g. using the freely available DAVE4VM code of Schuck et al 08)
    • It hence improve the computation of the helicity injection rate.
    • For the free magnetic energy: before computing this using the Poynting formula it is possible to compute the (total) magnetic energy but also to separate this term in two components: a shearing term and an emergence term. The total and each of these two components can be tested independantly as a criterion.

  2. Jordan Guerra

    Suggestion:

    Al-Ghraibah et. al. (2015) reported several photospheric magnetic parameters ranked according to the TSS value they yield using a RVM (Relevant Vector Machine) method for flare forecasting. See table below.

    These parameters were calculated using a MDI data set. Some of these quantities can be easily implemented with SHARP data. The gradient of Blos and Br images can be calculated using their method and/or the CWT method, which we already started implementing. Other quantities such as the wavelet energy levels are already calculated using CWT. 

    This can also be extended to include the other components of the vector magnetic field as well as the total field.