BAYU LAUT

BAYU LAUT (sea breeze)

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Terjadi pada waktu siang di mana kawasan di tepi pantai menjadi lebih panas berbanding dengan laut.

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Udara panas di darat menghasilkan tekanan lebih rendah berbanding kawasan pantai. Oleh itu kawasan kawasan pantai/daratan mengalami mengalami tekanan rendah dan laut tekanan tinggi.

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Udara bergerak dari kawasan tekanan tinggi ke kawasan tekanan rendah.

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Udara yang bergerak daripada laut ke daratan ini dinamakan dinamakan bayu laut.

BAYU DARAT (land breeze)

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Terjadi pada waktu malam di mana kawasan darat menjadi lebih cepat kehilangan haba berbanding kawasan laut.

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Suhu di darat lebih sejuk berbanding suhu di laut.

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Berlaku tekanan rendah di laut dan tekanan tinggi di darat.

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Udara bergerak dari tekanan tinggi ke tekanan rendah.

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Udara yang bergerak dari darat ke laut di namakan bayu darat.

SEA AND LAND BREEZES

During the day a land surface heats up quickly, and the air layer in contact with it rises in responseto the increased air temperature. This rising air produces a low-pressure cell over the coastal land or island. Since the air over the adjacent water is cooler, it subsides to produce a surface high-pressure cell. A pressure gradient is thereby produced, and air in contact with the surface now moves from high pressure to low pressure. Thus during the day, shore-zone areas generally experience air moving from water to land that is called a sea breeze. At night, when the temperature above the land surface has dropped sufficiently, the circulation reverse because the warmer air (and lower pressure) is now over the water. This results in air moving from land to water and its called a land breeze.