In a recent paper published in the Journal of Climate, scientists with NOAA and the University of Miami have identified how variability in ocean circulation in the South Atlantic Ocean may influence global rainfall and climate patterns. The study by researchers at NOAA’s Atlantic Oceanographic and Meteorological Laboratory (AOML) and the Cooperative Institute for Marine and Atmospheric Studies (CIMAS) suggests that the South Atlantic is a potential predictor of global rainfall variability with a lead-time of approximately 20 years. This link between the South Atlantic Ocean and weather and climate could provide significant long-term insight for water management on a global scale.
How do hurricanes form, survive, and intensify? Hurricane scientists have long believed upper ocean temperatures are the key factor. AOML’s Dr. Joe Cione reveals a new theory, after observing 62 Atlantic hurricanes of a span of 32 years, suggesting this common theory may not be all that accurate. If his theory holds, it could have the potential to significantly improve hurricane intensity forecasts for the nation.
Dr. Cione found that in addition to ocean temperature, the near-surface air temperature and moisture around the hurricane are also essential energy requirements for sustaining a hurricane. These two variables often play an even more important role than ocean temperature.