Sea level the warmer water expands. For at least the last 100 years, sea level has been rising at an average rate of about per year. Most of this rise can be attributed to the increase in temperature of the sea and the resulting slight thermal expansion of the upper of sea water. Additional contributions, as much as one-quarter of the total, come from water sources on land, such as melting snow and glaciers and extraction of groundwater for irrigation and other agricultural and human uses. Pilots can estimate height above sea level with an altimeter set to a defined barometric pressure.
AEDC Sea Level Test Cells AEDC Sea Level Test Cells The AEDC Sea Level Test Cells, located at Arnold Engineering Development Complex, is a collection of test cells used to economically perform durability testing on large augmented turbine engines at near sea level conditions. All test units in the facility are owned by the United States Air Force and currently operated by National Aerospace Solutions. The SL2 and SL3 cells are approximately 24 feet in height and width and 60 feet in length. In addition to running ambient pressure inlet conditions, they also provide the capability of using one of the complex's air plants to