Radiation amplification factor (RAF) and Ultraviolet Index (UVI) over indo gangetic plains

Ultraviolet Index (UVI) form Ozone Monitoring Instrument (OMI) is used to see the possible changes in radiation amplification factor (RAF) for the year 2005, 2009 and 2010. The selection of the years is based on the criteria of the temperature trend observed over the Indo Gangetic plain area 71°E -91° E longitude and 21°N -31° N latitude during last decades. April and May month is taken as the representative months of summer season over Indo Gangetic plains. The yearly variation of RAF is not showing any significant change, which in turn related to the ozone content over the area. The values of RAF are slightly higher during the month of May.