Atmosphere of Earth (see the temperature section, below). Because the general pattern of the temperature/altitude profile is constant and measurable by means of instrumented balloon soundings, the temperature behavior provides a useful metric to distinguish atmospheric layers. In this way, Earth's atmosphere can be divided (called atmospheric stratification) into five main layers. Excluding the exosphere, the atmosphere has four primary layers, which are the troposphere, stratosphere, mesosphere, and thermosphere. From highest to lowest, the five main layers are: The exosphere is the outermost layer of Earth's atmosphere (i.e. the upper limit of the atmosphere). It extends from the exobase, which is located at
The Outermost House presence on top of a dune overlooking the open Atlantic Ocean gave him the feeling of being aboard a ship. Over time, the structure also came to be known as "The Outermost House." Having spent considerable time on the Cape after completing a magazine assignment called "The Wardens of Cape Cod", about the Coast Guard officers of the Outer Cape, Beston drew up floor plans for a house on the dunes two miles south of the Nauset Coast Guard station in Eastham, Massachusetts. Carpenter Harvey Moore and his crew were the builders. Beston intended to use the cottage as a