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Purdue University In Research for More Accurate Doppler Radar

Posted by on Oct 06, 2010 | Leave a Comment

Recently, Purdue University, the National Center for Atmospheric Research and the Indian Institute of Technology Delhi’s research is collaboration for more accurate doppler radar. According to research collaboration, Doppler weather radar will considerably develop forecasting models used to track monsoon systems influencing the monsoon in and around India.

According to Purdue associate professor of agronomy and earth and atmospheric sciences, Dev Niyogi, modeling of a monsoon depression track can have a margin of error of about 200 kilometers for landfall, which can be significant for storms that produce as much as 20-25 inches of rain as well as inland floods and fatalities.”

Niyogi Said “When you run a forecast model, how you represent the initial state of the atmosphere is critical. Even if Doppler radar information may seem highly localized, we find that it enhances the regional atmospheric conditions, which, in turn, can significantly improve the dynamic prediction of how the monsoon depression will move as the storm makes landfall.” He also added, “It certainly looks like a wise investment made in Doppler radars can help in monsoon forecasting, particularly the heavy rain from monsoon processes.”

Indian Institute of Technology’s Atmospheric Sciences professor, U.C. Mohanty and his doctoral student, Ashish Routray and Niyogi collaborated with scientists at the National Center for Atmospheric Research and collected information like radial velocity and reflectivity from six Doppler weather radars that were in place during storms.  Using the Forecasting Model and weather research, they discovered that that incorporating the Doppler radar-based information reduced the fault of the monsoon depression’s landfall path from 200 kilometers to 75 kilometers.

According to Mohanty, more accurate predictions could better prepare people for heavy rains that account for a number of deaths in a monsoon season.”Once a monsoon depression passes through, it can cause catastrophic floods in the coastal areas of India.” he also added, “Doppler radar is a very useful tool to help assess these things.”

Future studies will include more imitations and more superior models to test the skill of Doppler radar to track monsoon processes.


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