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On the influence of spatial heterogeneity on an internal boundary layer at a short fetch

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Abstract

Surface layer meteorological data collected at a coastal site, at Vasco-Da-Gama (15°21′N, 73°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.

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Correspondence to B. S. Murthy.

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Murthy, B.S., Latha, R., Sukumaran, C. et al. On the influence of spatial heterogeneity on an internal boundary layer at a short fetch. J Earth Syst Sci 118, 61–70 (2009). https://doi.org/10.1007/s12040-009-0006-9

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  • DOI: https://doi.org/10.1007/s12040-009-0006-9

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