International Journal Of Coastal, Offshore And Environmental Engineering(ijcoe)

International Journal Of Coastal, Offshore And Environmental Engineering(ijcoe)

Study of surface fluxes over the Northern Indian Ocean Seas

Document Type : Original Research Article

Authors
Rozana Ghandy 1
Abbas Ali Ali Akbari Bidokhti 2
Parviz Irannejad 3
Mojtaba Ezam Ezam 1
1 Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University, Tehran, Iran
2 Prof. of Environmental Fluid Mechanics Institute of Geophysics University of Tehran, Tehran, Iran
3 Institute of Geophysics University of Tehran, Tehran, Iran
10.22034/ijcoe.2023.341127.0
Abstract
The open waters of the north Indian Ocean (NIO), which itself includes the Persian Gulf (PG), the Gulf of Oman (GO), and the Arabian Sea (AS), are subject to different meteorological forcing that can affect surface fluxes of these environments. In this study, latent heat flux (QLH), sensible heat flux (QSH), and surface wind stress (τ) between these regions are investigated. The reanalysis data from the data sets of the National Centers for Environmental Prediction (NCEP) and the European Center for Medium-Range Weather Forecasts (ECMWF) for these three regions for 14 years (2013-2000) are used. The results are compared with the measured data in the GO that show ECMWF reanalysis data are more consistent with the measured data in this period. We compare the average monthly, seasonal and annual values of QLH, QSH and τ of the PG, GO, and AS. The annual averages of QLH for the PG, the GO, and the AS are -128.63, -118.76, and -118.03 (Wm-2) and the annual averages of QSH are -1.28, -3.88, and -5.67 (Wm-2) respectively. The annual averages of τ are 0.074, 0.075, 0.036 (Pa) for these areas respectively. Also the annual average SST is 27, 26.56, and 27.14 (⁰C) respectively for these areas. Based on the results, different regimes of the PG wind with dust storms, and the limited and semi-closed space of the PG with its shallow depth, leads to different behaviors of QLH and QSH in PG area, in comparison with the other two environments (namely GO and AS).
Keywords
Latent heat flux
Sensible heat flux
Persian Gulf
Gulf of Oman
Northern Indian Ocean
Subjects
  1. Al Senafi, F., Anis, A. and Menezes, V. (2019). Surface heat fluxes over the Northern Persian Gulf and the Northern Red Sea: evaluation of ECMWF-ERA5 and NASA-MERRA2 reanalyses. Atmosphere,. 10(9): p. 504.
  2. Vissa, N.K., Satyanarayana, A.N.V. and Prasad Kumar, B. (2013). Comparison of mixed layer depth and barrier layer thickness for the Indian Ocean using two different climatologies. International J. of Climatology, 33(13), pp.2855-2870.
  3. Kara, A.B., Rochford, P.A. and Hurlburt, H.E., (2003). Mixed layer depth variability over the global ocean. Journal of Geophysical Research: Oceans, 108(C3).
  4. Mullah Esmailpour, S., Mehdizadeh, M.,  Hassanzadeh, E.,  Khalilabadi, M. (2018). Determination of the depth of the mixed layer and investigation of the barrier layer during the summer and winter monsoon in the North Indian Ocean. Hydrophysics, 3(2), pp.41-55
  5. Stewart, R. H. (2008) Introduction to physical oceanography, Robert H. Stewart.
  6. Cayan, D. R. (1992). Latent and sensible heat flux anomalies over the northern oceans: Driving the sea surface temperature. Journal of Physical Oceanography, 22(8), pp.859-881.
  7. Singh, R., Kishtawal, C.M., Pal, P.K. and Joshi, P.C. (2006). Surface heat fluxes over global oceans exclusively from satellite observations.Monthly weather review, 134, (3), pp.965-980.
  8. Banks, R.F., Bourassa, M .A., Hughes, P., O'Brien, J.J. and Smith, S.R. (2006). Variability of surface turbulent fluxes over the Indian Ocean. In 14th Conference on Interactions of the Sea and Atmosphere.
  9. Yu, L. and Weller, R.A. (2007). Objectively analyzed air–sea heat fluxes for the global ice-free oceans (1981–2005).Bulletin of the American Meteorological Society, 88(4), pp.527-540.
  10. Yu, L., Weller, R.A. and Sun, B. (2004). Improving latent and sensible heat flux estimates for the Atlantic Ocean (1988–99) by a synthesis approach.Journal of Climate, 17(2), pp.373-393.
  11. Yu, L., Jin, X. and Weller, R.A. (2007). Annual, seasonal, and interannual variability of air–sea heat fluxes in the Indian Ocean. Journal of climate, 20(13), pp.3190-3209.
  12. Khademi, I., Akbarinasab, M., Bidokhti, A.A. and Khalilabadi, M.R. (2017). Numerical calculation of Prandtl number in water column stratification in the Strait of Hormuz.Journal of Marine Science and Technology, 16(3), pp.14-26.
  13. Ghose, S.K., Swain, D., Mathew, S. and Venkatesan, R. (2021). Seasonal variability of air-sea fluxes in two contrasting basins of the North Indian Ocean. Dynamics of Atmospheres and Oceans, 93, p.101183.
  14. Zolina, O., Dufour, A., Gulev, S.K. and Stenchikov, G. (2017). Regional hydrological cycle over the Red Sea in ERA-Interim. Journal of Hydrometeorology, 18(1), pp.65-83.
  15. Al Senafi, F. and Anis, A. (2015). Shamals and climate variability in the Northern Persian Gulf from 1973 to 2012. International Journal of climatology, 35(15): p. 4509-4528.
  16. Rao, P.G., Hatwar, H.R., Al‐Sulaiti, M.H. and Al‐Mulla, A.H. (2003). Summer shamals over the Persian Gulf. Weather, 58(12), pp.471-478.
  17. Thoppil, P.G. and Hogan, P.J. (2010). Persian Gulf response to a wintertime shamal wind event. Deep Sea Research Part I: Oceanographic Research Papers, 57(8): p. 946-955.
  18. Rezaei-Latifi, A. and Hosseinibalam, F. (2015). An estimate of the surface heat fluxes transfer of the Persian Gulf with the overlying atmosphere.Journal of Radiation Research and Applied Sciences, 8(3), pp.354-361.
  19. Mahpeykar, O. and Khalilabadi, M.R. (2021). Numerical modelling the effect of wind on Water Level and Evaporation Rate in the Persian Gulf.International Journal of coastal and offshore engineering, 6(1), pp.47-53.
  20. Pourali, M. and Kavianpour, M.R. (2023). Variation of monthly exploitable wave energy in the Gulf of Chabahar under a high-resolution CMIP6. International Journal Of Coastal, Offshore And Environmental Engineering, 8(1), pp.16-25.
  21. Tomita, H. and Kubota, M. (2004). Variability of surface heat flux over the Indian Ocean. Atmosphere-ocean, 42(3): p. 183-199.
  22. Shinoda, T., Hendon, H.H. and Glick, J. (1999). Intraseasonal surface fluxes in the tropical western Pacific and Indian Oceans from NCEP reanalysis. Monthly weather review, 127(5), pp.678-693.