GEOG 1280 Lecture Notes - Lecture 39: Pressure-Gradient Force, Dhahran, Buoyancy
17 May 2017
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The temperature at which a given mass of air becomes saturated. In other words, air is saturated when the dew-point temperature and the air temperature are the same. Extreme dew points: a dew point of 35c was reported in dhahran, saudi arabia at 3 p. m. july 8, 2003. The temperature was 42c, resulting in an apparent temperature or heat index of 80c. Air always rises or falls at the dalr or salr (only rises) Never at the elr (environmental lapse rate: actual air temperature as you move through a stationary column of air). To test for stability compare moving air to the elr. If moving air is colder than elr then air will fall. If moving air is warmer than elr then air will rise. Striving to remove the imbalance in temperature and pressure. Newton"s laws of motion: first law: law of inertia, object in motion stays in motion. o second law: f=ma, third law: equal reactions.
