Ionospheric Response to St. Patrick’s Day Storm of 2015 Over Indian Region: Ionosonde and All-Sky Imager Observations

Sumedha Gupta1, Arun Kumar Upadhayaya1, Alok K Taori2 and Ravinder Kumar Kotnala1, (1)National Physical Laboratory, New Delhi, India, (2)National Atmospheric Research Laboratory, Gadanki, India