Long-Term Evolution of Significant Wave Height in the Eastern Tropical Atlantic between 1940 and 2022 Using the ERA5 Dataset

Autor: Olorunfemi Omonigbehin, Emmanuel OlaOluwa Eresanya, Aifeng Tao, Victor Edem Setordjie, Samuel Daramola, Abiola Adebiyi
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Journal of Marine Science and Engineering, Vol 12, Iss 5, p 714 (2024)
Druh dokumentu: article
ISSN: 2077-1312
27474348
DOI: 10.3390/jmse12050714
Popis: Studies on the variability in ocean wave climate provide engineers and policy makers with information to plan, develop, and control coastal and offshore activities. Ocean waves bear climatic imprints through which the global climate system can be better understood. Using the recently updated ERA5 dataset, this study evaluated the spatiotemporal distribution and variability in significant wave height (SWH) in the Eastern Tropical Atlantic (ETA). The short-term trends and rates of change were obtained using the Mann–Kendall trend test and the Theil–Sen slope estimator, respectively, and decadal trends were assessed using wavelet transformation. Significant, positive monthly and yearly trends and a prevailing decadal trend were observed across the domain. Observed trends suggest that stronger waves are getting closer to the coast and are modulated by the Southern and Northern Atlantic mid-latitude storm fields. These observations have implications for the increasing coastal erosion rates on the eastern coast of the Tropical Atlantic.
Databáze: Directory of Open Access Journals