2007-12-07 15:10:07 · 4 answers · asked by cyberjerk03 1 in Science & Mathematics ➔ Weather
29.92 inches of Mercury. Anything higher or lower relates to a corresponding weather condition. A lower reading indicates a Storm is about. A high indicates better weather and clear skies. At 1500 feet is not relevant to pressure since field elevations can and have changes in like fashion. The phrase "Sea Level" is used for a "Standard" and the established standard for a reading of 29.92 was made. It is important that a pilot know what the field pressure is when making takeoffs and landings. The setting tells his instruments where the ground is. Altimeters are instruments that meter altitude. The fact that you are flying at 1500 feet does not mean that the pressure is the same.
2007-12-07 15:33:54 · answer #1 · answered by blueridgemotors 6 · 0⤊ 2⤋
Barometric pressure is nothing but the weight of the overlying column of air over unit area at that level.If you reach a level of 1500 feet,the length of the overlying air colomn becomes less and hence the weight of the air colomn also becomes less resulting in less pressure.
So ,the pressure at 1500 feet will be lesser than that of the sea level.
2007-12-08 03:11:21 · answer #2 · answered by Arasan 7 · 0⤊ 0⤋
No, pressure decreases with height. The reason is because air pressure is just the weight of all the air above you put together. So if you go closer to the top of the atmosphere, the amount of air above you is less.
Sea level pressure is about 1013 mb.
At 1500 ft, you could probably expect about 960 mb. So it's not THAT much less, but it's definitely less.
2007-12-07 23:29:45 · answer #3 · answered by Scott Evil 6 · 1⤊ 0⤋
No. It's greater at sea level.
2007-12-07 23:17:30 · answer #4 · answered by Triddy 3 · 2⤊ 0⤋