SIMULATION OF STRONG WINDS AT LOMBOK INTERNATIONAL AIRPORT USING THE WRF MODEL ON MARCH 15 2012
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Published: Dec 30, 2015 |
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Keywords: extreme weather, strong wind, WRF |
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Abstract
On March, 15th 2012 a strong winds occured in Lombok International Airport (BIL). The wind blowing at a speed over 35 knots at 14.00 pm until 15.00 pm where it is very disturbing the airlines activities and also damaging the infrastructures in the airport. To illustrate the strong winds in BIL and to know the reliability of the model, then the simulation with methods observation and experimental by WRF-ARW version 3.1 had to do. In this study, radiation scheme was tested toward wind speed to get the best scheme. After that, running the FNL data by the best scheme and also for the GFS data prediction to get the output to be analyzed. WRF-ARW output showed indicate that strong winds that occurred on March 15, 2012 in BIL due to a low pressure area in the South Indian Ocean of Lombok Island. The result showed that the best radiation scheme is RRTM-Dudhia with correlation value is 0,5 and RMSE value is 5,4. The model can illustrated the strong wind event very well, that can be seen by the output of the model either FNL or GFS data don’t have a big difference value with the observation data.The wind speed of the model is about 40 knots that almost same as the observation data.
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