Links
Clouds &
Particles

cloud types * cloud formation * droplet chemistry * light interaction * aerosols * particle sources * visibility * climate interaction * rainbows

Cloud types and properties

Classification of clouds and precipitation
Overview with photos and short descriptions

Cloud gallery with descriptions

Clouds and precipitation
Definitions and overview with fotos

Cloud formation

What are cloud condensation nuclei (CCN)?
summary in key words - part of lecture chapter on condensation: dew, fog and clouds

Aerosols

Atmospheric aerosol
What are they and why they are important - nicely illustrated summary about aersols and their impact from NASA

Aerosols in the atmosphere - an article
Online magazin article in scientific american about aerosol impacts around India and measurements in a field campaign (many commercial ads)

Visibility

What is opacity?
A definition and short description of measurement and standards (by EPA) 

Visibility and monitoring - an example
Explanation of visibility and its monitoring at Glacier National Park - definition and photos

Light and Rainbow

Interaction of matter and light
Explains how light interacts with dust, aerosols, ice crystals, droplets and how rainbows are formed

Electromagnetic spectrum
Well illustrated explanation of waves and how they form the electromagnetic spectrum - from NASA

Light and ray optics
An explanation of optics, refraction and reflection with some artistic illustrations

Rainbow
Short explanation with images from Spectroscopy.net
Rainbow
another explanation in the Chennai online journal (includes commercials)

Smoke and health

How smoke cans affect health
short summary of health risks and potential protection

About the respiratory system