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

TitleOn the influence of spatial heterogeneity on an internal boundary layer at a short fetch
Publication TypeJournal Article
Year of Publication2009
AuthorsMurthy, BS, Latha, R, Sukumaran, C, Shivaji, A, Sivaramakrishnan, S
JournalJournal of Earth System Science
Volume118
Issue1
Pagination61-70
Date PublishedFEB
ISSN0253-4126
Keywordsheterogeneity, IBL, sea-land interface, wind spectra
Abstract

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.

DOI10.1007/s12040-009-0006-9
Type of Journal (Indian or Foreign)Indian
Impact Factor (IF)0.941
Divison category: 
Polymer Science & Engineering