Sea breeze characteristics over a coastal station in peninsular Malaysia

Jayakrishnan, P. R. and Sivaprasad, P. and Chenoli, Sheeba Nettukandy and Babu, C. A. and Abu Samah, Azizan and Mohammedali, N. P. (2021) Sea breeze characteristics over a coastal station in peninsular Malaysia. Journal of Earth System Science, 130 (3). ISSN 2347-4327, DOI

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Land and sea breezes are formed due to differential heating between land and sea surfaces and are prominent local circulation in the tropical region. We present the first observational analysis of the overview of sea-breeze characteristics based on Automatic Weather Station (AWS) data and radiosonde ascends at Bachok Marine Research Station in peninsular Malaysia. Onset criteria for sea breeze were defined based on the variations of Sea Breeze Component (SBC). Associated parameters such as surface wind direction, wind speed, humidity, and air temperature are analysed for 3 yrs (2015-2017) from the AWS. The radiosonde data taken during two field experiments during northeast monsoon and southwest monsoon are utilised to investigate the impact of monsoons on the sea breeze in greater detail. The influence of synoptic-scale motion on the sea breeze is also investigated using radiosonde and reanalysis data. Generally, the sea breeze sets in from the east at about 10:00 AM and occasionally, prevailing monsoon flow intruded into the local circulation. An increase in station pressure is noted during the onset. The time of onset, as well as the strength of the sea breeze, is influenced by conditions such as clear, cloudy, partially cloudy days and the presence of thunderstorms.

Item Type: Article
Funders: Fundamental Research Grant Scheme (FRGS) (FP104-2018A), eScience Fund (04-01-03-SF0410), HICoE MOHE Project (IOES-2014 A), HICoE MOHE Project (IOES-2014B)
Uncontrolled Keywords: Sea breeze; Diurnal variation; Monsoon; Synoptic wind
Subjects: Q Science > Q Science (General)
Q Science > QE Geology
Divisions: Faculty of Arts and Social Sciences > Department of Geography
Deputy Vice Chancellor (Research & Innovation) Office > Institute of Ocean and Earth Sciences
Depositing User: Ms Zaharah Ramly
Date Deposited: 11 Aug 2022 07:44
Last Modified: 11 Aug 2022 07:44

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