Title: Multiwavelength analysis of flaring active regions during the
pre-event phase 

Author_list: Zuccarello, F., Contarino, L., Romano, P.

Abstract: In previous works we have studied the role played by phenomena
like cancelling magnetic features and magnetic helicity transport in
eruptive prominences. These works were carried out using both ground
based (THEMIS, BBSO, Catania Astrophysical Observatory) and space
(TRACE, MDI/SOHO, YOHKOH)  data. We have analysed these data using
specific software which allowed us to determine the physical parameters
relevant to the phenomena from the image analysis, to measure the rate
of emergence of magnetic flux, to determine the magnetic helicity
injected in corona by horizontal flows and, using the Local Correlation
Tracking technique, to determine the horizontal velocity fields
(Contarino et al. 2003; Romano et al., 2003a; Romano et al., 2003 b). We
plan to utilize these methodologies to study the pre-event phase in
active regions indicated in Working Group 1.

Contarino L., Romano P., Zuccarello F. Yurchyshyn, V.B., Solar Phys.,
  216, 173, 2003
Romano P., Contarino L., Zuccarello F., Solar Phys., 214, 323, 2003a 
Romano P., Contarino L., Zuccarello F., Solar Phys., 218, 137, 2003b