Search results
Results from the WOW.Com Content Network
During the day, the sun heats up mountain air rapidly while the valley remains relatively cooler. Convection causes it to rise, causing a valley breeze. At night, the process is reversed. During the night the slopes get cooled and the dense air descends into the valley as the mountain wind. [4] These breezes occur mostly during calm and clear ...
Cross-breezes work when two windows are opposite of each other. Cross ventilation is a natural phenomenon where wind, fresh air or a breeze enters upon an opening, such as a window, and flows directly through the space and exits through an opening on the opposite side of the building (where the air pressure is lower).
Harmattan, a dry wind that blows from the northeast, bringing dust from the Sahara south toward the Gulf of Guinea. Khamsin ( khamaseen in Egypt) and similar winds named Haboob in the Sudan, Aajej in southern Morocco, Ghibli in Libya and Tunisia, Harmattan in the western Maghreb , Sirocco , a south wind from the Sahara and Simoom in the Arabian ...
In dry climates, the evaporative cooling effect may be used by placing water at the air intake, such that the draft draws air over water and then into the house. For this reason, it is sometimes said that the fountain, in the architecture of hot, arid climates, is like the fireplace in the architecture of cold climates.
This cooler air layer then flows down in the valley. This type of katabatic is very often observed during the night in the mountains. The term katabatic actually often refer to this type of wind. [4] In contrast, fall wind do not come from radiative cooling of the air, but rather from the advection of a relatively cold air mass to the top of a ...
The downward moving exterior is caused by colder air being displaced at the top of the thermal. Another convection-driven weather effect is the sea breeze. [17] [18] Stages of a thunderstorm's life. Warm air has a lower density than cool air, so warm air rises within cooler air, [19] similar to hot air balloons. [20]
French '89 Ingredients 1 oz non-alcoholic gin 1/4 oz simple syrup 1/4 oz lemon juice 3 oz non-alcoholic sparkling wine (chilled in advance) Lemon peel for garnish Method: Add all ingredients to glass.
The dry line is the boundary between dry and moist air masses east of mountain ranges with similar orientation to the Rockies, depicted at the leading edge of the dew point, or moisture, gradient. Near the surface, warm moist air that is denser than warmer, dryer air wedges under the drier air in a manner similar to that of a cold front wedging ...