Analysis of the impact of realistic size wind speed parameter on the Delft3D mod

Question

Analysis of the impact of realistic size wind speed parameter on the Delft3D model REU Student - Marion Washington Currently, a constant default tropical cyclone size is being used for the wind field input in the Delft3D model. This could result in inconsistency in the model simulation and prediction results. To address this issue, analysis is needed to arrive at the realistic size for the wind size parameter. In this project, the literature review and data analytics based experimentation will be conducted to arrive at the realistic size for the wind field input parameter in the Delft3D model. In addition, the performance evaluation analysis for the Delft3D model output for the realistic size wind field input compared to the constant default size wind field input will be performed to study the impact of realistic tropical cyclone sizes on the Delft3D model simulation. May 30 2017 Next Steps Download satellite image file (for the Hurricanes across Atlantic basin) https/www.class.ngdc.noaa.gov/saa/products/search?sub id=0&datatype; family=GVAR IMG & submit.x=26&submit.y;=10 Plot it in the Matlab Compare it with advisory file on the wind sizes http://www.nhc.noaa.gov/archive/2012/[for the Hurricanes across Atlantic basin] Create an algorithm to Figure out the realistic wind size parameter using cyclone image file and given size file Implement the algorithm in Matlab to figure out the realistic wind size parameter Use the realistic wind size parameter created in Step 4 in Delft3D to create a new mdf file Compare the water level output from the mdf file with and without realistic wind size parameter Compare the water level output from the mdf file with and without realistic wind size parameter to the NoAA Buoy file (https://tidesandcurrents.noaa.gov/) Expected output is that output from the new mdf file should match more accurately with the Buoy file

Explanation / Answer

Initially a matlab file is created and in order to plot the satellite image of hurricane in the atlantic ocean,some of the parameters that are available.to sketch the satellite image are used.

Now this model is compared with another given advisory model of hurricanes across atlantic ocean.

It can be found that the amount of hurricane circulation varies slightly with that of the advisory file.

The algorithm to indicate the wind size parameter for the two files are:-

Step1-The matlab file is created.

Step2-The area covered by the hurricane is measured by using the scales in the matlab simulation. This is compared with that of the advisory file measurements.

Step3-The variations are calculated. This is used to find.the wind size parameter,that is amount of blowing wind,its speed in m or km/hr,etc.

Similarly the water level difference is also found out using the same algorithm.

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