Global and Regional Perspectives

This chapter explores the global and regional footprints of ARs, which are just beginning to be recognized. This chapter begins by highlighting the global climatology of ARs using metrics such as frequency, duration, seasonality, and the fraction of precipitation that can be attributed to ARs. It then highlights regional climatologies of ARs, the unique ways in which ARs are manifested across each of these regions, and some of the high-impact events associated with them.