Density always increases as altitude decreases. So the air density below sea level will be greater than the air density at sea level.
Temperature reaches its coldest at the tropopause, which is the boundary between the troposphere below and the stratosphere above. In the stratosphere, the temperature increases with height due to absorption of radiation by ozone.Temperature changes when altitude is in the stratosphere because of one things. It already rises when you climb up in the stratosphere.
It is 282 feet below sea level.
Altitude is the distance above ground-level that an object is, in a vertical direction (that is, directly away from the centre of the Earth). If this is negative then the object is below ground-level, so it is underground.
As the depth increases, the density increases also.
As altitude increases, air pressure decreases. Gravity causes the atmosphere to become heavier the closer you are to the ground. The atmosphere may seem weightless but all the air molecules add up to a tremendous amount of mass. If you think of the atmosphere like blankets, the more blankets you have piled on you the heavier they become, thus pressing down on your body more and more. This is the same in the atmosphere, where the higher the altitude, the less overlying atmosphere, the less pressure on air molecules. At higher altitudes the air molecules have more freedom to move around.
It increases by 1 atmosprere every 33 feet.
The atmosphere becomes less dense with altitude. Atmosphere, thin though it is, has weight, and it is the weight of the air above which compresses the air below it, to greater density.
The thermosphere has lower density than the layers below it but higher than the exosphere above it.The density of the Earth's atmosphere decreases nearly exponentially with altitude. At 400 km altitude the density is typically about 6g/m3 . This changes considerably when there is a solar storm.The air density is so low in this layer that most of the thermosphere is what we normally think of as outer space. In fact, the most common definition says that space begins at an altitude of 100 km (62 miles), slightly above the mesopause at the bottom of the thermosphere.
The density of the gases in space is so low that we would not term them "air". As you increase in altitude from Sea Level the density of air gradually decreases right up until you reach space. There is no point where there is a sudden change so that someone can say that air has stopped and space has begun. Quite simply, the upper reaches of the atmosphere have been defined by picking an altitude. Below that altitude is "air"; above it is "space".
This characteristic is called altitude or elevation.
It is the altitude.
Yes, that is correct. Altitude above sea level, for example, is negative or positive - if you are below sea level, a negative number will be used.
altitude
Almost . . ."Altitude" is the apparent angle of the object above the horizon.
The rpm will start to drop and the warning horn will beep. Below about 4000 ft density altitude you'd have to be pulling above take-off maximum power for this to happen.
5m
False.