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<p>The northern Indian Ocean is always affected by seasonal monsoons, tropical cyclones, and other atmospheric and oceanic interactions. In this study, the spatial and temporal (monthly and seasonal) variability of wave power in the northern Indian Ocean (the Gulf of Oman and north of the Arabian Sea) were investigated. For this purpose, the MIKE SW model prepared by the Danish Hydraulic Institute was used to evaluate the wave power pattern in the study area for 15 years (2009–2023). To more accurately assess wave energy in the study area, wave spectral characteristics were analyzed in the northeastern Gulf of Oman (Chabahar offshore) and northeastern Arabian Sea (Karachi offshore). The simulation results showed that the highest and the lowest monthly wave power values were in July and December, respectively, and the highest and the lowest seasonal wave power values were in summer (June-July-August) and winter (December-January-February), respectively. Closeness to the summer monsoon region in the northern Indian Ocean and exposure to swells from lower latitudes are the main reasons for the higher wave energy over the north of the Arabian Sea than in the Gulf of Oman. The maximum annual mean wave power over the Karachi offshore is around 25&#xa0;kW/m, and the Chabahar offshore is around 11&#xa0;kW/m. Also, the wave energy propagated from south and southeast to northwest in the Chabahar offshore and from southwest to northeast in the Karachi offshore. Finally, considering the average mean wave power in coastal parts of Chabahar and Karachi, these regions are prone to install and launch new wave energy harvesting technologies such as wave energy converters.</p>

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Investigating of Wave Power Characteristics over the Northern Indian Ocean

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • Mohammad Pakhirehzan,
  • Mahdi MohammadMahdizadeh

摘要

The northern Indian Ocean is always affected by seasonal monsoons, tropical cyclones, and other atmospheric and oceanic interactions. In this study, the spatial and temporal (monthly and seasonal) variability of wave power in the northern Indian Ocean (the Gulf of Oman and north of the Arabian Sea) were investigated. For this purpose, the MIKE SW model prepared by the Danish Hydraulic Institute was used to evaluate the wave power pattern in the study area for 15 years (2009–2023). To more accurately assess wave energy in the study area, wave spectral characteristics were analyzed in the northeastern Gulf of Oman (Chabahar offshore) and northeastern Arabian Sea (Karachi offshore). The simulation results showed that the highest and the lowest monthly wave power values were in July and December, respectively, and the highest and the lowest seasonal wave power values were in summer (June-July-August) and winter (December-January-February), respectively. Closeness to the summer monsoon region in the northern Indian Ocean and exposure to swells from lower latitudes are the main reasons for the higher wave energy over the north of the Arabian Sea than in the Gulf of Oman. The maximum annual mean wave power over the Karachi offshore is around 25 kW/m, and the Chabahar offshore is around 11 kW/m. Also, the wave energy propagated from south and southeast to northwest in the Chabahar offshore and from southwest to northeast in the Karachi offshore. Finally, considering the average mean wave power in coastal parts of Chabahar and Karachi, these regions are prone to install and launch new wave energy harvesting technologies such as wave energy converters.