convection, sea and land breeze, during the day, the land heats up faster compared to seawater, the air above the land heats up and rises, the cooler air above the sea rushes inland to replace the space left by the warm air, this sets up a convection current, creating a sea breeze. during the night, the land cools down faster compared to seawater, the air above the sea heats up and rises, the cooler air above the land rushes out towards the sea to replace the space left by the warm air, this sets up a convection current, creating a land breeze