"Microbaroms, what the heck are they?"
Microbaroms are infrasound signals created by certain kinds of ocean waves that are captured thousands of miles away. A recent study in the Journal of Geophysical Research-Oceans reveals that these signals that are delivered during tropical cyclones can be distinguished from other wave activity. Microbaroms may be helpful in monitoring and predicting wave hazards during hurricanes. In 2009, researchers monitored two Pacific tropical cyclones, Niki and Felicia that moved over an infrasound sensor in Hawaii. They determined that the microbaroms from the hurricane activity overwhelmed weaker signals from similar ocean activity. This represents a first step in using infrasound measurements in determining storm strength. The next phase of the experimentation will be the examination of storms around the world for comparative large-scale weather patterns