%0 Journal Article %J Journal of Earth System Science %D 2009 %T On the influence of spatial heterogeneity on an internal boundary layer at a short fetch %A Murthy, B. S. %A Latha, R. %A Sukumaran, Cini %A Shivaji, A. %A Sivaramakrishnan, S. %K heterogeneity %K IBL %K sea-land interface %K wind spectra %X

Surface layer meteorological data collected at a coastal site, at Vasco-Da-Gama (15A degrees 21'N, 73A degrees 51'E, 58.5m MSL) (13-18 July, 2002) with prevailing southwesterly surface winds are analyzed to study the characteristics of internal boundary layer at a short fetch using an instrumented tower (9 m). The spectral and turbulence characteristics of wind are compared with earlier measurements made at a comparatively homogeneous terrain and the standards available in literature. The study show the smaller eddies in the vertical velocity spectrum attains equilibrium with the underlying surface at a short fetch itself and follows spectral similarity. However, this is not followed by longitudinal and transverse velocity spectra under unstable as well as stable conditions.

%B Journal of Earth System Science %I INDIAN ACAD SCIENCES %C C V RAMAN AVENUE, SADASHIVANAGAR, P B \#8005, BANGALORE 560 080, INDIA %V 118 %P 61-70 %8 FEB %G eng %N 1 %3 Indian %4 0.941 %R 10.1007/s12040-009-0006-9