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Temporal variations in the wind and wave climate at a location in the eastern Arabian Sea based on ERA-Interim reanalysis data.

DRS at CSIR-National Institute of Oceanography

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Title Temporal variations in the wind and wave climate at a location in the eastern Arabian Sea based on ERA-Interim reanalysis data.
 
Creator Shanas, P.R.
SanilKumar, V.
 
Subject wave height
buoy data
 
Description Temporal variations in wind speed and significant wave height (SWH) at a location in the eastern Arabian Sea are studied using ERA-Interim reanalysis data from 1979 to 2012. A shallow water location is selected for the study since measured buoy data are available close to the location for comparison with the reanalysis data. The annual mean wind speed shows a statistically significant decreasing trend of 1.5 cm s-1 year-1 , whereas a statistically insignificant increasing trend of 3.6 cm s-1 year-1 is observed for annual maximum wind speed due to the local events that altered the trend in annual maximum wind speed. Weakening of SWH during one of the peak monsoon months (August) is identified from the monthly analysis of SWH, which shows a higher upward trend in SWH during the southwest monsoon period, with an exception during August. The annual mean SWH shows a slight upward trend (0.012 cm year-1 ), whereas a larger upward trend (1.4 cm year-1 ) is observed for annual maximum SWH. Both identified trends are statistically insignificant. The influence of tropical cyclone activity is also studied and it is found that the maximum SWH and wind speed during 1996 are directly related to the cyclonic event
 
Date 2014-06-11T11:33:32Z
2014-06-11T11:33:32Z
2014
 
Type Journal Article
 
Identifier Natural Hazards and Earth System Sciences, vol.14(5); 2014; 1371-1381.
no
http://drs.nio.org/drs/handle/2264/4551
 
Language en
 
Relation Nat_Hazards_Earth_Syst_Sci_14_1371.jpg
 
Rights © Author(s) 2014. CC Attribution 3.0 License.
 
Publisher European Geosciences Union