Buoyancy effect on atmospheric surface layer: Measurements from the East Coast of Malaysia

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The nature and evolution of the atmospheric surface layer is still unresolved completely. Many questions regarding the existence of the z-less layer and trend of the cross correlations still remain open. This research analyzes some of the surface layer ambiguities. In this research temperature, velocity and turbulence data were collected from a weather station facility located in the Marine Ecosystem Research Centre (EKOMAR) Mersing on the East Coast of Malaysia. Two high resolution hotwires were utilized at 3 m and 12 m heights above ground. Both gradient Richardson number and Obukhov stability parameter were calculated. Turbulence spectra were plotted at different stability conditions. The results does not show the existence of the z-less layer at deep stable condition. The buoyancy force, under unstable condition, was found responsible for the increase of vertical correlation factor. The fingerprint of the buoyancy force was detected in the spectra at low frequencies.

Original languageEnglish
Article number012043
JournalJournal of Physics: Conference Series
Volume822
Issue number1
DOIs
Publication statusPublished - 11 Apr 2017

Fingerprint

Malaysia
buoyancy
coasts
surface layers
turbulence
weather stations
Richardson number
ecosystems
ambiguity
cross correlation
low frequencies
trends
gradients
high resolution
temperature

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Buoyancy effect on atmospheric surface layer : Measurements from the East Coast of Malaysia. / Harun, Zambri; Reda, E.; Zulkifli, Rozli.

In: Journal of Physics: Conference Series, Vol. 822, No. 1, 012043, 11.04.2017.

Research output: Contribution to journalArticle

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