Cyclones are categorized based on wind intensity, rainfall thresholds, or a combination of both. These definitions influence how exposure is measured and the associated health risks. For example, wind-based metrics classify cyclones into Tropical Depression (TD), Tropical Storm (TS), and Typhoon (TY), while rainfall-based metrics use percentile thresholds specific to each region. Combined metrics consider both wind and rainfall intensity, offering a more nuanced understanding of exposure.