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2. Numerical Study of Incompressible Flow Past a Circular Cylinder at Low Reynolds Number Using COMSOL Multiphysics

Author

Ahmad, Mohamad Faizal, Haniffah, Mohd Ridza Mohd, Kueh, Ahmad, Kasiman, Erwan Hafizi, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Cui, Zhen-Dong, Series Editor, and Sabtu, Nuridah, editor

Published
2024
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4. Employing gridded-based dataset for heatwave assessment and future projection in Peninsular Malaysia.

Author

Sa'adi, Zulfaqar, Hamed, Mohammed Magdy, Muhammad, Mohd Khairul Idlan, Chow, Ming Fai, Mohamad, Nur Athirah, Basri, Mohd Hadi Akbar, Ahmad, Mohamad Faizal, Sa'adi, Nurzalikha, Alias, Nor Eliza, Yusop, Zulkifli, Houmsi, Mohamad Rajab, Shukla, Prabhakar, and Aris, Azmi

Subjects
HEAT waves (Meteorology), EL Nino, CLIMATE change models, SUBSET selection, GLOBAL warming
Abstract

Rising temperatures due to global warming necessitate immediate evaluation of heatwave patterns in Peninsular Malaysia (PM). For this purpose, this study utilized a locally developed heatwave index and a gridded daily maximum temperature (Tmax) dataset from ERA5 (1950–2022). During validation, the ERA5 dataset accurately represented the spatial pattern of Level 1 heatwaves, showing widespread occurrence. Historically, Level 1 heatwaves prevailed at 63.0%, followed by Level 2 at 27.7%, concentrated in northwestern states and the enclave between the Tahan and Titiwangsa mountain ranges. During very strong El Niño events in 1982/83, 1997/98, and 2015/16, Level 2 heatwave distributions were 10.4%, 26.8%, and 15.0%, respectively. For future projection, the model ensemble was created by selecting top-performing Global Climate Models (GCMs) using Kling-Gupta efficiency (KGE), ranked re-aggregation with compromise programming index (CPI), and GCM subset selection via Fisher-Jenks. The linear scaling bias-corrected GCMs (BC-GCMs), NorESM2-LM, ACCESS-CM2, MPI-ESM1-2-LR, ACCESS-ESM1-5, and FGOALS-g3, were found to exhibit better performance, and then ensemble. March to May show the highest increase in all scenarios, ranging from 3.3 °C to 4.4 °C for Level 1 heatwaves and 4.1 °C to 10.7 °C for Level 2 heatwaves. In the near future, SSP5-8.5 projects up to a 40.5% spatial increase for Level 1 heatwaves and a 2.3% increase for Level 2 heatwaves, affecting 97.1% and 57.2% of the area, respectively. In the far future, under SSP2-4.5 and SSP5-8.5, Tmax is projected to rise rapidly (1.5–4.5 °C) in the northern, western, and central regions, with increasing population exposure anticipated in the northern and western regions. [ABSTRACT FROM AUTHOR]

Published
2024
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5. List of contributors

Author

Achinas, Spyridon, primary, Achinas, Vasileios, additional, Ahmad, Mohamad Faizal, additional, Alam, Md. Saiful, additional, Arumugam, Nithiya, additional, Arun, S., additional, Asif, Saira, additional, Bokhari, Awais, additional, Chandra, Rashmi, additional, Chelliapan, Shreeshivadasan, additional, Chuah, Lai Fatt, additional, Din, Mohd. Fadhil Md., additional, Ebrahimi, Shirin Shafiei, additional, Euverink, Gerrit Jan Willem, additional, Faizal, Che Ku Mohammad, additional, Ghosh, Pooja, additional, Hariharan, S., additional, Islam, M. Amirul, additional, Jaibiba, P., additional, Kamyab, Hesam, additional, Karim, Ahasanul, additional, Karim, Shefa Ul, additional, Khan, Md. Maksudur Rahman, additional, Krishnan, Santhana, additional, Kumar, Manoj, additional, Laamanen, Corey A., additional, Mahapatra, D.M., additional, Michelle, Leow Zi Yan, additional, Naga Vignesh, S., additional, Naik, S.N., additional, Nasrullah, Mohd, additional, Pakshirajan, Kannan, additional, Ramasamy, Surjith, additional, Rezania, Shahabaldin, additional, Sahay, Arunaditya, additional, Sahoo, N.K., additional, Sahota, Shivali, additional, Sahu, S.N., additional, Sánchez, Carlos Eduardo Gámez, additional, Scott, John A., additional, Sengupta, Subhanjan, additional, Shah, Goldy, additional, Singh, Lakhveer, additional, Sinharoy, Arindam, additional, Taib, Shazwin Mat, additional, Tanveer, Md. Sifat, additional, Trinh, Huong, additional, Uribe, Janet Alejandra Gutiérrez, additional, Vijay, Virendra Kumar, additional, Vishal, Garima, additional, Wahid, Zularisam Abdul, additional, Yousuf, Abu, additional, Yusup, Suzana, additional, and Zainuddin, Nur Azmira, additional

Published
2020
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