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Projections of wind climate and wave energy resources in Lithuanian territorial waters of the Baltic Sea in the 21st century
Oceanologia ( IF 2.9 ) Pub Date : 2023-06-24 , DOI: 10.1016/j.oceano.2023.06.004
Darius Jakimavičius , Vytautas Akstinas

Wave energy is still insufficiently explored and exploited as a future energy source. Climate change is an additional force that affects energy potential changes. Therefore, this study aims to evaluate the wave energy under climate change and to project it for the near (2025–2044) and far (2081–2100) future by applying the wave energy flux (WEF) approach and statistical relations between wind speeds and wave heights. The study was concentrated on the Baltic Sea nearshore at the Lithuanian territorial water. The analysis of existing relations between wind speeds and wave heights was found based on historical observations of the reference period (1995–2014), and the projections of WEF were created using the downscaled output of best-fit global climate models (GCMs) according to four scenarios of Shared Socioeconomic Pathways (SSP). The results indicated strong relations between wind speed and wave height, especially for the west-origin winds. Depending on the selected scenarios, the projected WEF may increase up to 10% (SSP5-8.5) and 11% (SSP1-2.6) in the near and far future respectively. The absence of large differences between the periods may be caused by the rough resolution of grid cells of GCMs. The comparison with the results based on regional climate models output could be a future perspective in order to reach a better representation of regional forces and to introduce more clarity to the obtained results. The results of this study may be advantageous for the primary planning of renewable energy sources (RES) development, especially in the face of climate change.



中文翻译:

21世纪立陶宛波罗的海领海风气候和波浪能资源预测

波浪能作为未来能源还没有得到充分的探索和利用。气候变化是影响能源潜力变化的额外力量。因此,本研究旨在评估气候变化下的波浪能,并通过应用波浪能通量(WEF)方法以及风速和风速之间的统计关系来预测近期(2025-2044)和远(2081-2100)的未来波浪能。波高。该研究集中在立陶宛领海附近的波罗的海。对风速和波高之间现有关系的分析是根据参考期(1995-2014)的历史观测结果得出的,并且 WEF 的预测是根据最适合的全球气候模型(GCM)的缩小输出创建的共享社会经济路径(SSP)的四种情景。结果表明,风速和波高之间存在密切关系,尤其是西风。根据所选情景,预计 WEF 在近期和远期可能分别增加至 10% (SSP5-8.5) 和 11% (SSP1-2.6)。周期之间没有大的差异可能是由于 GCM 网格单元的分辨率粗糙造成的。与基于区域气候模型输出的结果进行比较可能是未来的一个视角,以便更好地代表区域力量并使所获得的结果更加清晰。这项研究的结果可能有利于可再生能源(RES)发展的初步规划,特别是面对气候变化。根据所选情景,预计 WEF 在近期和远期可能分别增加至 10% (SSP5-8.5) 和 11% (SSP1-2.6)。周期之间没有大的差异可能是由于 GCM 网格单元的分辨率粗糙造成的。与基于区域气候模型输出的结果进行比较可能是未来的一个视角,以便更好地代表区域力量并使所获得的结果更加清晰。这项研究的结果可能有利于可再生能源(RES)发展的初步规划,特别是面对气候变化。根据所选情景,预计 WEF 在近期和远期可能分别增加至 10% (SSP5-8.5) 和 11% (SSP1-2.6)。周期之间没有大的差异可能是由于 GCM 网格单元的分辨率粗糙造成的。与基于区域气候模型输出的结果进行比较可能是未来的一个视角,以便更好地代表区域力量并使所获得的结果更加清晰。这项研究的结果可能有利于可再生能源(RES)发展的初步规划,特别是面对气候变化。周期之间没有大的差异可能是由于 GCM 网格单元的分辨率粗糙造成的。与基于区域气候模型输出的结果进行比较可能是未来的一个视角,以便更好地代表区域力量并使所获得的结果更加清晰。这项研究的结果可能有利于可再生能源(RES)发展的初步规划,特别是面对气候变化。周期之间没有大的差异可能是由于 GCM 网格单元的分辨率粗糙造成的。与基于区域气候模型输出的结果进行比较可能是未来的一个视角,以便更好地代表区域力量并使所获得的结果更加清晰。这项研究的结果可能有利于可再生能源(RES)发展的初步规划,特别是面对气候变化。

更新日期:2023-06-24
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