Air Temperature and Air Temperature Cycles

Air Temperature and Air Temperature Cycles - OVERVIEW ,...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Air Temperature and Air Temperature Cycles  OVERVIEW   This chapter examines air temperature, its measurement and the factors that cause it to vary through time and space.  When  net radiation  is positive, the surface gains heat and temperature rises. When net radiation is negative, the  surface loses heat and temperature falls.  Air temperature measured above  urban surfaces  is usually higher than that over  rural surfaces Temperature declines with  altitude  at an average rate of 6.4° C/1000 m in the troposphere which extends 12 -15  km in altitude.  The  troposphere  contains:  o Most daily weather phenomena  o Significant amounts of water vapor  o Clouds  o Large numbers of aerosols on which water vapor condenses to form tiny droplets  The outer boundary of the troposphere is the  tropopause.   In the  stratosphere , the absorption of ultraviolet radiation causes the temperature to increase with 
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 11/10/2011 for the course GEA GEA2000 taught by Professor Wong,faith during the Fall '09 term at Broward College.

Page1 / 2

Air Temperature and Air Temperature Cycles - OVERVIEW ,...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online