Table of Contents
Journal of Climatology
Volume 2014, Article ID 504178, 21 pages
Research Article

Coastal Boundary Layer Characteristics of Wind, Turbulence, and Surface Roughness Parameter over the Thumba Equatorial Rocket Launching Station, India

1Meteorology Facility, Thumba Equatorial Rocket Launching Station (TERLS), Vikram Sarabhai Space Centre (VSSC), Indian Space Research Organisation, Thiruvananthapuram 695 022, India
2Space Physics Laboratory, Vikram Sarabhai Space Centre (VSSC), Indian Space Research Organization, Thiruvananthapuram 695 022, India

Received 18 October 2013; Revised 25 February 2014; Accepted 9 March 2014; Published 19 June 2014

Academic Editor: Elena Paoletti

Copyright © 2014 K. V. S. Namboodiri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The study discusses the features of wind, turbulence, and surface roughness parameter over the coastal boundary layer of the Peninsular Indian Station, Thumba Equatorial Rocket Launching Station (TERLS). Every 5 min measurements from an ultrasonic anemometer at 3.3 m agl from May 2007 to December 2012 are used for this work. Symmetries in mesoscale turbulence, stress off-wind angle computations, structure of scalar wind, resultant wind direction, momentum flux ( ), Obukhov length ( ), frictional velocity ( ), w-component, turbulent heat flux ( ), drag coefficient ( ), turbulent intensities, standard deviation of wind directions ( ), wind steadiness factor- relationship, bivariate normal distribution (BND) wind model, surface roughness parameter ( ), and wind direction ( ) relationship, and variation of with the Indian South West monsoon activity are discussed.