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dc.contributor.authorAbdulla, C.P.
dc.contributor.authorAboobacker, V.M.
dc.contributor.authorShanas, P.R.
dc.contributor.authorVijith, V.
dc.contributor.authorSajeev, R.
dc.contributor.authorVethamony, P.
dc.date.accessioned2022-12-31
dc.date.accessioned2023-03-01T09:15:28Z
dc.date.available2022-12-30
dc.date.available2023-03-01T09:15:28Z
dc.date.issued2022
dc.identifier.citationInternational Journal of Climatology, vol.42(16); 2022; 8738-8754
dc.identifier.issn1097-0088
dc.identifier.otherhttps://rmets.onlinelibrary.wiley.com/doi/full/10.1002/joc.7767
dc.identifier.urihttps://doi.org/10.1002/JOC.7767
dc.identifier.urihttps://drs.nio.org/drs/handle/2264/8939
dc.description3.651
dc.description.abstractWind climate along the southwest coast of India (Kerala coast) has been analysed using 41 years of Climate Forecast System Reanalysis (CFSR) winds to delineate long-term trends and variability.The study reveals significant decreasing trends in annual mean wind speeds, of the order of -2.0 to -2.5~cm�s-1�year-1, for the period 1979-2019.Southwest monsoon has contributed the highest weakening trends (-3.0 to -4.0~cm�s-1�year-1) due to significant decrease in the southwesterly/westerly wind speeds.The wind climate and trends during the northeast monsoon and premonsoon seasons have been characterized largely by the prevalence of sea breeze and shamal-makran wind systems.We find that the intensity of both sea breeze and shamal-makran wind systems reduces from north to south along the Kerala coast, which is in consistent with the earlier studies.Decadal oscillations in wind speeds, driven by the decadal variability in large-scale atmosphere-ocean circulations, are evident.Recent changes in the frequency of occurrence of Indian Ocean Dipole in the Indian Ocean have determined the overturning trends since 2010, and resulted in increasing trends in the current decade along the central and northern coasts of Kerala.Furthermore, interannual variability in wind speeds has been linked to the El Nino-Southern Oscillations (ENSO) and Indian Ocean Dipole (IOD).
dc.languageen
dc.publisherWiley
dc.relation.isreferencedbySCI
dc.rightsOnly the author version of the copright reserved papers uploaded. Contact drs@nio.org for any complaints regarding copyright violations
dc.titleClimatology and variability of wind speeds along the southwest coast of India derived from Climate Forecast System Reanalysis winds
dc.typeJournal Article
dc.affiliation.authorDepartment of Physical Oceanography, Cochin University of Science and Technology, Cochin, India


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