Comparison between convectional and orographic rainfall:
1) Both types of rainfall are caused by vertical ascent of heated air.
Contrast between convectional and orographic rainfall :
1. While orographic rainfall is caused when the mountain forces the air to rise over mountain or the elevation in its path; the convectional rainfall occurs when moisture over the heated ground becomes warmer than the surrounding air.
2. While convectional rainfall is common on summer days in interior part of the continents the orographic rainfall occurs in the windward sides of mountains.
3. While the orographic rain occurs in the mountainous regions, the convectional rain takes place in the equatorial regions.
