Land breeze

Just as heating in the daytime occurs more quickly over land than over water, at night radiational cooling occurs more quickly over land. The pressure pattern tends to be the reverse of that in the daytime. The warmer air tends to rise over the water, which is replaced by the land breeze from land to water, with the reverse flow (water to land) completing the circular flow at altitudes somewhat aloft. Frequently at night, the temperature differences between between land and water are smaller than those during the daytime, and therefore the land breeze has a lower speed. 

BUOYANT PLUME RISES INTO ZONE WHERE RETURN LAND BREEZE DOMINATES wno PATTERN THIS BEHAVIOR WILL BE DtURNALLY VARYIND AND VERY DIFFICULT TO PREDICT. 

Land breeze The air movement that takes place after sunset, when the land cools and air currents flow from the land to the cooler sea. 

Land and sea breezes are wind and weather phenomena associated with coastal areas. A land breeze is a breeze blowir from land out toward a body cf water. A sea breeze is a wind blowing from the water onto the land. Land breezes and sea breezes arise because of differential heatir between land and water surfaces. Land and sea breezes can extend inland rp to 100 mi (161 km), or manifest as local phenomena that quickly weaken with a few hundred yards cf the oreline. On average, the... 

After sunset, the air mass above the coastal land quickly loses heat while the air mass above the water generally remains much closer to it s daytime temperature. When the air mass above the land becomes cooler than the air mass over water, the wind direction and convective cell currents reverse and the land breeze blows from land out to sea. 

Because land breezes and sea breezes are localized weather patterns, they are frequently subsumed into or overrun by large-scale weather systems. Regardless, winds will always follow the most dominant pressure gradient. 

As a rule, the land breeze of this local wind system of the Baltic Sea develops only in the late summer and in autunm at calm high pressure weather conditions and in particular at night and in the morning. Then, the temperature contrast between the still warm Baltic Sea water and the coastal seam, cooling down already more strongly, are strongest. However, the land breeze is—because of the stronger friction—only weakly pronounced in comparison to the Seabreeze. 

In the evening, both land and ocean lose heat by radiation to the sky, but the temperature of the water drops less than that of the land, continuing to supply heat to the oceanic air and causing it to rise, thus reversing the direction of air flow and producing the evening land breeze. 

The figure also includes land breeze data from two different altitudes, 90 and 1800 meters, which were obtained within 2 hours of each other from a circling aircraft. Again we see deviations from sea water ratios with increasing altitude for Cl/Na. The absolute values of the ratios containing F also show this change, but are different from marine aerosol ratios. In this case, however, the wind was from the land and the samples were collected about 150 miles from the U. S. east coast. The influence of a continental aerosol component did appear in the fluoride concentration (12). Similarly, changes in the relative chemical composition of marine aerosols with altitude have been reported by others for SO4/CI (2, 51) and Cl, Br, and I (44). 

An advective inversion is formed when warm air flows over a cold surface or colder air. The inversion can be surface-based, as when warm air flows over cold plains, or elevated, as in the case when a cool sea breeze is overlaid by a warm land breeze. 

Winds caused by local temperature changes include sea breezes, and land breezes. 

A breeze that blows from the land to the ocean or a large lake is called a land breeze. 

The best example of local winds in the coastal zone is perhaps the land-sea breeze system. This coastal air-circulation system brings fresh air fi om the sea in the afternoon to cool coastal residents, whereas farther inland hot and still air is the general rule. On coasts and shores of relatively large lakes, because of the large diurnal temperature variations over land as compared to that over water, a diurnal reversal of onshore (sea breeze) and offshore (land breeze) wind occurs. 

A sea breeze develops a few hours after sunrise, continues during the daylight hours, and dies down after sunset. Later, a seaward-blowing land breeze appears and contin-... 

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