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
One Direction: Where We Are – The Concert Film One Direction: Where We Are – The Concert Film One Direction: Where We Are – The Concert Film, also known as One Direction: Where We Are – Live from San Siro Stadium is the second concert film by English-Irish boy band One Direction and the sequel to "". The film takes place during the 28 and 29 June 2014 shows of the band's Where We Are Tour at San Siro Stadium in Milan, Italy. It contains a 15-minute interview with the band with exclusive behind-the-scenes footage. Initial rumors of a sequel to "This Is Us" surfaced in April 2014 as