The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations
As more weather and climate extremes continue to occur and projected to intensify, this poses a threat to low-lying countries such as Singapore which are prone to flash flooding. Given that there are recurrent atmospheric phenomena that periodically occur and influence our weather such as the MJO, w...
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| Other Authors: | |
| Format: | Final Year Project (FYP) |
| Language: | English |
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Nanyang Technological University
2021
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| Online Access: | https://hdl.handle.net/10356/153379 |
| _version_ | 1826114070680436736 |
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| author | Tjoa, Chin Hong |
| author2 | Tong Ping |
| author_facet | Tong Ping Tjoa, Chin Hong |
| author_sort | Tjoa, Chin Hong |
| collection | NTU |
| description | As more weather and climate extremes continue to occur and projected to intensify, this poses a threat to low-lying countries such as Singapore which are prone to flash flooding. Given that there are recurrent atmospheric phenomena that periodically occur and influence our weather such as the MJO, we seek to find out where these convective weather were occurring and their intensities around Singapore to provide observational reference for operational meteorologists, and to ana-lyse sounding parameters of convective thunderstorms across the MJO phases. Four years of radar data showed that the active MJO phase 8 was most favourable for severe (very severe and extreme) convection along the western and southern islands of Singapore. Widespread convec-tive thunderstorms around Singapore also tended to occur during the wetter MJO phases 1 – 4. The frequency of widespread and/or prolonged convection, during phases 6 – 8, also increases with increasing moisture in the atmosphere while this was invariant over phases 1 – 5. Lastly, hotspots of intense convection over Singapore tended to occur over the western and central north-south corridor of Singapore. |
| first_indexed | 2024-10-01T03:33:09Z |
| format | Final Year Project (FYP) |
| id | ntu-10356/153379 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:33:09Z |
| publishDate | 2021 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1533792023-02-28T23:12:44Z The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations Tjoa, Chin Hong Tong Ping School of Physical and Mathematical Sciences Centre for Climate Research Singapore, Meteorological Service Singapore, National Environment Agency Muhammad Eeqmal Hassim tongping@ntu.edu.sg Science::Mathematics As more weather and climate extremes continue to occur and projected to intensify, this poses a threat to low-lying countries such as Singapore which are prone to flash flooding. Given that there are recurrent atmospheric phenomena that periodically occur and influence our weather such as the MJO, we seek to find out where these convective weather were occurring and their intensities around Singapore to provide observational reference for operational meteorologists, and to ana-lyse sounding parameters of convective thunderstorms across the MJO phases. Four years of radar data showed that the active MJO phase 8 was most favourable for severe (very severe and extreme) convection along the western and southern islands of Singapore. Widespread convec-tive thunderstorms around Singapore also tended to occur during the wetter MJO phases 1 – 4. The frequency of widespread and/or prolonged convection, during phases 6 – 8, also increases with increasing moisture in the atmosphere while this was invariant over phases 1 – 5. Lastly, hotspots of intense convection over Singapore tended to occur over the western and central north-south corridor of Singapore. Bachelor of Science in Mathematical Sciences 2021-11-24T06:23:32Z 2021-11-24T06:23:32Z 2021 Final Year Project (FYP) Tjoa, C. H. (2021). The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations. Final Year Project (FYP), Nanyang Technological University, Singapore. https://hdl.handle.net/10356/153379 https://hdl.handle.net/10356/153379 en application/pdf Nanyang Technological University |
| spellingShingle | Science::Mathematics Tjoa, Chin Hong The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations |
| title | The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations |
| title_full | The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations |
| title_fullStr | The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations |
| title_full_unstemmed | The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations |
| title_short | The Influence of the Madden-Julian Oscillation in the distribution of convective intensities around Singapore from ground-based radar observations |
| title_sort | influence of the madden julian oscillation in the distribution of convective intensities around singapore from ground based radar observations |
| topic | Science::Mathematics |
| url | https://hdl.handle.net/10356/153379 |
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