Understanding Interplanetary Shock Dynamics in the Inner Heliosphere with New Observations and Modeling Techniques: Case studies on the 2010-04-03 and 2010-08-01 events

H. XIE; L. MAYS; O. C. ST. CYR; N. GOPALSWAMY; D. ODSTRCIL; H. CREMADES

San Francisco, USA

Congreso; American Geophysical Union, Fall Meeting 2010; 2010

AGU

The 2010 April 03 and August 01 CMEs were studied using observations from STEREO A and B, and SOHO LASCO, combined with ENLIL+Cone model simulations preformed at the Community Coordinated Modelling Center (CCMC). In particular, we identified the origin of CMEs using STEREO EUVI and/or SDO images. A flux-rope model fitting to the SECCHI A and B, SOHO/LASCO images was used to reconstruct the 3D structures of CMEs and determine their actual speeds. J-maps were obtained from COR-2/HI-1/HI-2 and simulations using ENLIL+cone model were conducted to study the formation and evolution of the CME-driven shocks in the inner heliosphere. We compared the simulation results with the observed height-time profiles of the shocks from white light and kilometric type II burst (Wind/WAVES) observations. The predicted shock arrival at Earth is compared with in-situ observations from ACE and Wind. We report the preliminary results of the study in this poster.