The lowest layer of the atmosphere is called the troposphere. It ranges in thickness from 8km at the poles to 16km over the equator. The troposphere is bounded above by the tropopause, a boundary marked by stable temperatures.Above the troposphere is the stratosphere.he troposphere is denser than the layers of the atmosphere above it (because of the weight compressing it), and it contains up to 75% of the mass of the atmosphere. It is primarily composed of nitrogen (78%) and oxygen (21%) with only small concentrations of other trace gases.
Bigler is a census-designated place located in Bradford Township, Clearfield County in the state of Pennsylvania.
Welcome to our new web site. It is still a work in progress. If you find any problems, have comments or suggestions to improve the site, please email the webmaster. The Ligonier Township building is located 2 miles north of Ligonier, PA on State Route 711 in Oak Grove. The township has a population of roughly 6,973 and the road crew is responsible for 96 miles of roads. The township covers 91.8 square miles in Westmoreland County and includes zip codes 15658, 15677 and 15655.