Lec Jan 21 - Geography January 21, 2010 Troposphere - 0 to...

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

View Full Document Right Arrow Icon
Geography January 21, 2010 Troposphere - 0 to 17 km (equatorial) - 0 to 10 km (polar) - 80% of the mass of the atmosphere Stratosphere 15-50 km 'o-zone layer' temperature increases little circulation between the troposphere and stratosphere Stratopause (boundry) Mesosphere and Thermosphere - Mesosphere 50 to 80 km - temperature decreases - Mesopause (not concerned with) - Thermosphere (not concerned with) - very low density - temperature increases Function - The lonosphere absorbs Gamma and x-ray radiation - The ozonosphere (stratosphere) absorbs) ultra-violet radiation - above the troposphere Function: Figures 3.2 Atmospheric Issues What are some of the important environmental atmospheric issues that have been problematic in recent decades? - Acid Deposition (Focus 3.2) - Ozone Depletion (Focus 3.1) - Pollution (Smog) (pages 78-86) - Sulphurous smog (industrial) - Photochemical smog Photochemical Smog - weed need a warm hot day with clear skys - Vehicle exhaust reacts on hot sunny days to produce: Ozone, Peroxyacetyl Nitrates (PAN), and Nitric Acid
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.

Page1 / 4

Lec Jan 21 - Geography January 21, 2010 Troposphere - 0 to...

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