Climatology is the study of our weather and its changes over the longer time scale, say a year or more - the distinction between meteorology and climatology can get fuzzy. I study high latitude meteorology in the Arctic and Antarctic, and the interactions of those systems with the global climate system. And under that umbrella, I use numerical modeling to study regional to global climate. I also study particular aspects of meteorology, like katabatic winds . I try to understand how they blow and what moderates them.
Technology is the most important part.
When I started, automatic weather stations were just getting going - that was in the early 1980's. Regular satellite coverage is relatively new - since about 1987. Computer-based modeling is just coming into its own right now. I was interested in physics, math and chemistry - you need those tools for meteorology. And I grew up in Australia, so there was a close tie to Antarctica.