By Ann Posegate
"How strong is a hurricane? Just listen." Besides reconnaissance flights and ocean buoys, there may be potential to measure the strength of hurricanes by listening to their sound deep under the ocean surface. Leave it to MIT to develop underwater microphones (hydrophones) that make it "possible to measure wind power as a function of the intensity of the sound." You can listen for yourself here.
And while we're witnessing Gustav growing in the Caribbean, check out this visualization of the Sea Surface Temperatures in the Western Hemisphere, including the Gulf Stream current (courtesy of NOAA's Science on a Sphere.)