The lowest part of the troposphere, where friction with the Earth's surface influences air flow, is the planetary boundary layer. This layer is typically a few hundred meters to 2 km (1.2 mi) deep depending on the landform and time of day.he troposphere is the lowest portion of Earth's atmosphere. It contains approximately 75% of the atmosphere 's mass and 99% of its water vapor and aerosols.
Bushnell is a city in Sumter County, Florida, United States. The population was 2,050 at the 2000 census. According to the U.S Census estimates of 2005, the city had a population of 2,119. It is the county seat of Sumter County.
Escambia County, Florida. (Redirected from Escambia County, FL) Escambia County is the westernmost county in the U.S. state of Florida. As of the 2010 census, the population was 297,619. Its county seat is Pensacola and the County Administrator is Jack Brown. Escambia County is included in the Pensacola-Ferry Pass-Brent, Florida Metropolitan Statistical Area.