Network?Synchronization Analysis Reveals the Weakening Tropical Circulations

The impact of climate change on extreme weather is one the most concerning problems. Climate could cause more frequent and unexpected weather. Still, synchronization features under are not fully understood. Here, we develop a network approach to study global patterns events based 500-hPa geopotential field. We find that positive event (PES) associated with tropical circulations in tropics; negative large-scale atmospheric Rossby waves mid-latitudes. By studying temporal evolution PES network, strengths tropics weakening relation slowing down circulations. Furthermore, our results show strength Africa Atlantic Ocean decrease faster than other regions.