DETECTION ALGORITHM OF TROPICAL CYCLONE EVENT IN INDONESIA USING SPLIT WINDOW DIFFERENCE HIMAWARI-8
One of the tropical cyclone events that has the greatest impact and occurs closest to Indonesia's land area is Tropical Cyclone Cempaka. But at the stage of growth and formation, Cempaka Tropical Cyclones is failed to be detected by global models and Advance microwave sounding units (AMSU). The...
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id-itb.:362842019-03-11T13:43:50ZDETECTION ALGORITHM OF TROPICAL CYCLONE EVENT IN INDONESIA USING SPLIT WINDOW DIFFERENCE HIMAWARI-8 Sandy, Roy Indonesia Final Project Tropical Cyclone Cempaka, split window difference, Himawari-8. INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/36284 One of the tropical cyclone events that has the greatest impact and occurs closest to Indonesia's land area is Tropical Cyclone Cempaka. But at the stage of growth and formation, Cempaka Tropical Cyclones is failed to be detected by global models and Advance microwave sounding units (AMSU). Therefore, In this study an algorithm for the detection of cyclone events in Indonesia will be formed by utilizing the Himawari-8 multispectral satellite with the occurrence of Cempaka Tropical Cyclone as a reference for making detection algorithms then be used as an indication of early warning of tropical cyclones in Indonesia.. This research will use the split window difference (SWD) method which will be formed into four schemes. The scheme was formed using a band with a wavelength of 6.4 ?m and 10.4 ?m, 11.3 ?m, 12.4 ?m, and 13 ?m. Then it will be identified in each SWD to see its relationship with the growth pattern of the Tropical Cyclone Cempaka and will be used to detect other tropical cyclone events that will be occur in Indonesia. The results showed that the cyclone growth pattern could be detected at the tropical depression stage using SWD (6.2 ?m - 10.4 ?m), SWD (10.4 ?m - 12.4 ?m), and SWD (10.4 ?m - 13.3 ?m). At SWD (10.4 ?m - 12.4 ?m) and SWD (10.4 ?m - 13.3 ?m) the cyclone was identified by a circular pattern at its minimum value with a range of 0 - 4 K while in SWD (6.2 ?m - 10.4 ?m) the cyclone was identified with a circular pattern at its maximum value with a range of -10 - 0 K. The cyclone formation from tropical depression is characterized by widening the minimum value and decreasing the maximum value with susceptible 3 - 4.5 K on the Hovmoller plot. Cyclone formation occurs in the range of 3-6 hours after the pattern on the Hovmoller plot is detected. Furthermore the reduction in the maximum value area in the detection area of 60 to 70 percent is also an indication of cyclone formation. text |
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One of the tropical cyclone events that has the greatest impact and occurs closest to Indonesia's land area is Tropical Cyclone Cempaka. But at the stage of growth and formation, Cempaka Tropical Cyclones is failed to be detected by global models and Advance microwave sounding units (AMSU). Therefore, In this study an algorithm for the detection of cyclone events in Indonesia will be formed by utilizing the Himawari-8 multispectral satellite with the occurrence of Cempaka Tropical Cyclone as a reference for making detection algorithms then be used as an indication of early warning of tropical cyclones in Indonesia..
This research will use the split window difference (SWD) method which will be formed into four schemes. The scheme was formed using a band with a wavelength of 6.4 ?m and 10.4 ?m, 11.3 ?m, 12.4 ?m, and 13 ?m. Then it will be identified in each SWD to see its relationship with the growth pattern of the Tropical Cyclone Cempaka and will be used to detect other tropical cyclone events that will be occur in Indonesia.
The results showed that the cyclone growth pattern could be detected at the tropical depression stage using SWD (6.2 ?m - 10.4 ?m), SWD (10.4 ?m - 12.4 ?m), and SWD (10.4 ?m - 13.3 ?m). At SWD (10.4 ?m - 12.4 ?m) and SWD (10.4 ?m - 13.3 ?m) the cyclone was identified by a circular pattern at its minimum value with a range of 0 - 4 K while in SWD (6.2 ?m - 10.4 ?m) the cyclone was identified with a circular pattern at its maximum value with a range of -10 - 0 K. The cyclone formation from tropical depression is characterized by widening the minimum value and decreasing the maximum value with susceptible 3 - 4.5 K on the Hovmoller plot. Cyclone formation occurs in the range of 3-6 hours after the pattern on the Hovmoller plot is detected. Furthermore the reduction in the maximum value area in the detection area of 60 to 70 percent is also an indication of cyclone formation. |
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Final Project |
author |
Sandy, Roy |
spellingShingle |
Sandy, Roy DETECTION ALGORITHM OF TROPICAL CYCLONE EVENT IN INDONESIA USING SPLIT WINDOW DIFFERENCE HIMAWARI-8 |
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Sandy, Roy |
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Sandy, Roy |
title |
DETECTION ALGORITHM OF TROPICAL CYCLONE EVENT IN INDONESIA USING SPLIT WINDOW DIFFERENCE HIMAWARI-8 |
title_short |
DETECTION ALGORITHM OF TROPICAL CYCLONE EVENT IN INDONESIA USING SPLIT WINDOW DIFFERENCE HIMAWARI-8 |
title_full |
DETECTION ALGORITHM OF TROPICAL CYCLONE EVENT IN INDONESIA USING SPLIT WINDOW DIFFERENCE HIMAWARI-8 |
title_fullStr |
DETECTION ALGORITHM OF TROPICAL CYCLONE EVENT IN INDONESIA USING SPLIT WINDOW DIFFERENCE HIMAWARI-8 |
title_full_unstemmed |
DETECTION ALGORITHM OF TROPICAL CYCLONE EVENT IN INDONESIA USING SPLIT WINDOW DIFFERENCE HIMAWARI-8 |
title_sort |
detection algorithm of tropical cyclone event in indonesia using split window difference himawari-8 |
url |
https://digilib.itb.ac.id/gdl/view/36284 |
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1821997106972327936 |