Evaluation of the effect of climate change on the characteristics of waves in the coasts of the Persian Gulf

Document Type : Original Article

Authors

1 Master of Civil Engineering, Coastal Engineering, Ports and Marine Structures.

2 Assistant Professor, Department of Civil Engineering, Marine Structures, Faculty of Marine Engineering, Khorramshahr University of Marine Sciences and Technology, Khorramshahr, Iran.

3 Assistant Professor, Faculty of Marine Engineering, Institute of Geophysics, University of Tehran.

4 Ph.D. Candidate, Department of Irrigation and Reclamation Engineering, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.

5 Ph.D. Candidate, Department of Water Science and Engineering, Faculty of Agriculture and Natural Resources, Islamic Azad University Ahwaz, Ahwaz, Iran.

6 Assistant Professor, Climatological Research Institute, Mashhad, Iran.

Abstract

Various factors play a role in climate change, including oceanic processes (such as ocean orbits), changes in solar radiation received from the earth, volcanic eruptions, and changes in human activity. Climate change has affected atmospheric and oceanic phenomena such as the Earth's surface temperature, precipitation, sea level, wind speed, wave height, coastlines and other phenomena and has changed these characteristics. In studying the effects of climate change on oceanic phenomena, estimating the long-term impact of climate change is of great importance. This is important because the offshore structures in these areas are affected by these changes and there is a need to amend the standard guidelines for the design of coastal structures. In this study, using the CGCM3 climate change model, wind speed values ​​for the Persian Gulf and the Sea of ​​Oman were extracted. These values ​​as model input, using the third generation numerical model MIKE21 (SW) which simulates wave parameters with the least assumptions, were converted into wave characteristics and finally the amount of changes in wave characteristics such as wave height Wave period and wave direction have been obtained in the Persian Gulf, the Sea of ​​Oman and part of the Indian Ocean that is affected by climate change in the region. The results of studies have shown that the effect of climate change on wave height and wave period is negligible, but in Makran beaches the effect of climate change on the angle of the wave direction can be considered and this will affect the sedimentation process. The effect of climate change on the wave direction and its effect on the structure should be further investigated for the construction of ports and marine structures such as desalination catchments in these areas.Various factors play a role in climate change, including oceanic processes (such as ocean orbits), changes in solar radiation received from the earth, volcanic eruptions, and changes in human activity. Climate change has affected atmospheric and oceanic phenomena such as the Earth's surface temperature, precipitation, sea level, wind speed, wave height, coastlines and other phenomena and has changed these characteristics. In studying the effects of climate change on oceanic phenomena, estimating the long-term impact of climate change is of great importance. This is important because the offshore structures in these areas are affected by these changes and there is a need to amend the standard guidelines for the design of coastal structures. In this study, using the CGCM3 climate change model, wind speed values ​​for the Persian Gulf and the Sea of ​​Oman were extracted. These values ​​as model input, using the third generation numerical model MIKE21 (SW) which simulates wave parameters with the least assumptions, were converted into wave characteristics and finally the amount of changes in wave characteristics such as wave height Wave period and wave direction have been obtained in the Persian Gulf, the Sea of ​​Oman and part of the Indian Ocean that is affected by climate change in the region. The results of studies have shown that the effect of climate change on wave height and wave period is negligible, but in Makran beaches the effect of climate change on the angle of the wave direction can be considered and this will affect the sedimentation process. The effect of climate change on the wave direction and its effect on the structure should be further investigated for the construction of ports and marine structures such as desalination catchments in these areas.Various factors play a role in climate change, including oceanic processes (such as ocean orbits), changes in solar radiation received from the earth, volcanic eruptions, and changes in human activity. Climate change has affected atmospheric and oceanic phenomena such as the Earth's surface temperature, precipitation, sea level, wind speed, wave height, coastlines and other phenomena and has changed these characteristics. In studying the effects of climate change on oceanic phenomena, estimating the long-term impact of climate change is of great importance. This is important because the offshore structures in these areas are affected by these changes and there is a need to amend the standard guidelines for the design of coastal structures. In this study, using the CGCM3 climate change model, wind speed values ​​for the Persian Gulf and the Sea of ​​Oman were extracted. These values ​​as model input, using the third generation numerical model MIKE21 (SW) which simulates wave parameters with the least assumptions, were converted into wave characteristics and finally the amount of changes in wave characteristics such as wave height Wave period and wave direction have been obtained in the Persian Gulf, the Sea of ​​Oman and part of the Indian Ocean that is affected by climate change in the region. The results of studies have shown that the effect of climate change on wave height and wave period is negligible, but in Makran beaches the effect of climate change on the angle of the wave direction can be considered and this will affect the sedimentation process. The effect of climate change on the wave direction and its effect on the structure should be further investigated for the construction of ports and marine structures such as desalination catchments in these areas.

Keywords

References

  1.  

    1. Kamran-zad, B. (2013). Investigation of the effect of climate change on the angiogenic regime of waves in the Persian Gulf. PhD Thesis. Iran University of Science &
    2. Kamran-zad, B. (2014). Assessment of Soft Computing Models to Estimate Wave Heights in AnzaliPort. marine-engineering. 9 (17) :27-36.
    3. Battjes,J.A. and Janssend,J.P.F.M. , "ENERGY LOSS AND SET-UP DUE TO BREAKING OF RANDOM WAVES," COASTAL ENGINEERING, 1978.
    4. Booij, N. Ris, R.C and Holthuijsen, L.H. (1999). A third-generation wave model for coastal regions, part II: verification," JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 104, NO. C4, PAGES 7667–7681.
    5. Dreier, N. and Schlamkow, C. (2011). Assessment of Future Wave Climate on basis of Wind-Wave- Correlations and Climate Change Scenarios," Journal of Coastal Research, Special Issue 64,, 2011.
    6. Eldeberky,y and Battjes,J,A, "Spectral modeling of wave breaking: Application to Boussinesq equations," Journal of Geophysical Research Atmospheres 101(C1):1253-1264, 1996.
    7. Jose, F. Forecast of Nearshore Wave Parameters Using MIKE21 Spectral Wave Model. Gulf Coast Association of Geological Societies Transactions, v. 56, p. 323-327.
    8. Janssen, Wave-Induced Stress and the Drag of Air Flow over Sea Waves. Journal of Physical Oceanography 19(6):745-772, 1989.
    9. Jiang, J. and Perrie, W. (2007). The Impacts of Climate Change on Autumn North Atlantic Midlatitude Cyclones. Journal of Climate 20(7):1174-1187, 2007.
    10. Grabemann, I. and Weisse, R. (2008). Climate change impact on extreme wave conditions in the North Sea: An ensemble study," Ocean Dynamics 58(3):199-212.
    11. Grabemann, I. and Groll, N. (2014). Climate change impact on North Sea wave conditions: a consistent analysis of ten projections. Ocean Dynamics 65:255-267, 2014.
    12. Grol, N. and Weisse, R. (2017). A multi-decadal wind-wave hindcast for the North Sea 1949-2014: CoastDat2. Earth System Science Data 9(2):955-968, 2017.
    13. Hasselmann, K. (1974). On the spectral dissipation of ocean waves due to white capping. Boundary-Layer Meteorology. 6(1):107-127.
    14. Hasselmann, K. (1985). Computations and Parameterizations of the Nonlinear Energy Transfer in a Gravity-Wave Specturm. Part II: Parameterizations of the Nonlinear Energy Transfer for Application in Wave Models. Journal of Physical Oceanography 15(11):1378-1392, 198.
    15. Hemer, M.A. and Griffin, D.A. (2010). The wave energy resource along Australia’s Southern margin. journal of Renewable and Sustainable Energy.1-043108-2.
    16. Holthuijsen, L. H, N. Booij and T. H. C. Herbers. A prediction model for stationary. short-crested waves in shallow water with ambient currents, Coastal Engineering, 13,23–54, 1989.
    17. Holthuijsen, L. H. Waves in Oceanic and Coastal Waters. United Kingdom:Cambridge University Press., 2007.
    18. Komen, G. J. and Hasselmann, K. (1984). On the Existence of a Fully Developed Wind-Sea Spectrum. Journal of physical oceangraphy.
    19. Koman, G.K, Cavaleri, L, Donelan, M and Hasselmann, K. (1994). Dynamics and modeling of Ocean Waves," Cambridge University Press.
    20. Lowe, R. J. A. (2009). numerical study of circulation in a coastal reef‐lagoon system. OURNAL OF GEOPHYSICAL RESEARCH, VOL. 114, C06022, doi:10.1029/2008JC005081.
    21. Moeini, M and Shahidi, E. (2007). Application of two numerical models for wave hindcasting in Lake Erie. Applied Ocean Research 29(3):137-145.
    22. Strauss, D. (2007). Comparison of two wave models for Gold Coast, Australia," Journal of Coastal Research 50(50):312-316.
    23. Lionellob, P and Giorgia, F. (2008). Climate change projections for the Mediterranean region. Global and Planetary Change.
    24. Mori, N. (2009) IMPACT OF GLOBAL CLIMATE CHANGE ON WAVE CLIMATE. Conference: Coastal Dynamics 2009 - Impacts of Human Activities on Dynamic Coastal Processes.
    25. Ris, R. (1997). Spectral modelling of wind waves in coastal areas. PhD thesis-Delft University Press.
    26. Weesakul, S. Ranasinghe, R. Dastgheib. A. (2014).Climate Change Driven Variations in the Wave. UNESCO-IHE. Rev.
Journal of Climate Research
Volume 1400, Issue 47 - Serial Number 47
Vol. 12 - No. 47,-Autumn 2021
January 2022
Pages 157-175

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