Kim Martucci's Blog

Kim is so in love with the science of meteorology that her number one hobby is chasing tornadoes. On her most exciting excursion into tornado alley, she spotted twelve of the dangerous storms. The story she broadcast about that trip helped earn her an Emmy Award nomination as best weathercaster in New England.

Tuesday, May 20, 2008

NOAA WILL LAUNCH NEW SATELLITE TO TRACK GLOBAL SEA LEVEL

There is a new satellite called the Jason-2/Ocean Surface Topography Mission (OSTM) that will be launched on June 15th at 1:47am. This satellite will continue the work if its predecessors: Jason-1, and TOPEX/Poseidon. Its main goal is to continue the long-term survey of the oceans, their circulation patterns, measuring sea-surface heights and their RATES of sea-level rise.

How does it work? It uses a radar altimeter and flies in a low orbit. It will monitor 95% of the ice-free oceans. The best part about this new satellite, in my opinion, is that it will be able to help meteorologists make better predictions when it comes to a hurricane's intensity. According to Dr. Laury Miller, chief of NOAA's Laboratory for Satellite Altimetry "If we increase the accuracy of intensity predictions, we help save lives." In the past, using data received by other altimeter missions with hurricane strengths of category 5 on the Saffir Simpson scale (wind speeds 155 mph or greater), the error for intensity prediction has decreased by 5% and as much as 20%, according to Miller.

This will be a major boost for the NOAA Satellite Operations Facility in Suitland, MD. Right in our back yard, those folks will be the ground support for this satellite. Hurricane season, by the way, officially starts June 1.

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1 Comments:

At May 20, 2008 at 3:58 PM , Blogger Yota said...

Interesting

I had thought most of the energy from hurricanes was due to water temperatures which the systems passed over. At least that has been what I remember reported, not the ocean level itself. Which made sense to me because of convection and evaporation.

You guys are the pro's though. Too many variables including opposing systems and jet streams, as well as wind shear at upper altitudes. The physics or global dynamics all come into play when dealing with systems of this size. (the really big picture).

Anyways I googled this just out of curiosity: ( http://www.oceanweather.com/forecast/ )

About all I remember from school was charting the predominate winds between longitudes and the Coriolis effect as it related to ocean currents in I think the 7th or 8th grade.

It's all physics

 

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