JavaScript DHTML Menu Powered by Milonic
CODAR Ocean Sensors logo
CODAR Ocean Sensors - The Leaders in HF Radar Technology      
News Article Archives

Past Events
Newsletter Archives

For a Printable PDF Version of this article
Click here to >> Download Document << (approx. 620k)

March 2012

Improving Hurricane Intensity Forecasting Using Irene Case Study

Improving Hurricane Intensity Forecasting Using Irene Case Study
Presented by Dr. Scott Glenn at the TOS/ASLO/AGU Ocean Sciences 2012 Meeting.
Download presentation at:
Hurricane Irene’s visit to the U.S. east coast last August affected millions of people, breaking flood records in 26 rivers, was responsible for more than 37 deaths and causing nearly $8 billion in damages. During Irene’s progression up the eastern seaboard grim forecasts were made of how the storm would evolve and impact the nation’s most populous region, the mid-Atlantic bight. This was the first tropical storm to threaten New York City since 1985 and while scientists accurately predicted its track, its intensity was consistently over predicted, setting off a media panic, with speculation that Irene might retain hurricane status as it approached New York’s low-lying Manhattan.

SeaSonde, Glider & Satellite Data Improve Understanding of the Forecast Deficiency
A team of scientists led by Dr. Scott Glenn of Rutgers University performed a hindcasting exercise to better understand why the forecasts were overestimating intensity. Their exercise used data collected by the Mid Atlantic Regional Association Coastal Ocean Observing System (MARACOOS) during the event, including surface current maps from a suite of SeaSondes, satellite-derived surface temperatures, and critical sub-surface temperature data gathered by two gliders. With this field data applied, hindcasting results showed forecasts had not adequately factored in the effect of the highly stratified vertical thermocline. Vertical mixing caused by the hurricane winds resulted in a rapid and significant drop in surface temperatures that quickly weakened the hurricane into a storm.



© CODAR Ocean Sensors 2000 - 2021
About CODAR | Intro to HF Radar | News | Products | Support | Contact Us | Help | Partners Sales Support