Divergence of tropical cyclone hazard based on wind-weighted track distributions in the Coral Sea, over 50 years

Abstract Tropical cyclones (TCs) with genesis in the Coral Sea present significant hazards to coastal regions their surroundings. In addition, erratic nature of TC tracks is not well understood this region. Therefore, study grouped over last fifty years based on K-means clustering maximum wind-weighted centroids. This was done order extract valuable new cyclone power, track curvature and location related information from historical records predict behaviour light a changing climate. variance (sinuosity) were assessed. Three well-defined clusters identified, results showed differing predominant directions movement by cluster. Track sinuosity shown increase east west. Only one cluster statistically trend (decreasing) frequency. The power dissipation index (PDI) used reveal that two have diverging trends for PDI post-2004. Based intensity, only (towards equator). All these findings demonstrated clear between-cluster hazard show discovered southwest Pacific are manifest or consistent across all clusters.