List of Articles Polar Vortex Open Access Article Abstract Page Full-Text 1 - Synoptic Analysis of the Nature of Sudan Low Pressure Systems (Case Study: December 2001 Storm) عباس Mofidi آذر Zarrin Open Access Article Abstract Page Full-Text 2 - Dynamic Analysis of the Role of Stratospheric Large Scale Circulation on the Stratospheric Ozone Depletion, Part II; Dynamical Mechanisms عباس Mofidi Open Access Article Abstract Page Full-Text 3 - Dynamical Analysis of the Role of Stratospheric Large Scale Circulation on the Stratospheric Ozone Depletion Abbas Mofidi