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.
Previous Next. Incorporated in 1913 and the seat of Flagler county, Bunnell is rich in history and intrigue. Home to a variety of parks, recreation areas and natural attractions, the northeast Florida gem of Bunnell welcomes visitors to experience the uniqueness and growth of this picturesque town. HI Â°F.