Atmospheric sunlight transmission

For different rainout rates we have calculated widely different transmission of solar radiation through the atmosphere. For slow rainout rates, the transmission may remain below 10% for a whole month (see Figure 2), which means that sunlight transmission would be less than 1%, if twice the amount of aerosol were to be dumped in the atmosphere. Because of the uncertain analysis of the amounts of fuels burnt and particulate matter formed from different materials, and considering also the simplicity of the model adopted in this study, this possibility may not be discounted. A prolonged stay of aerosol particles in the atmosphere would occur if much particulate matter rapidly reached the stratosphere because of the intense solar heating of the smoke clouds. 

Oil-based and alkyd Based either on natural fish, plant oils, or synthetic resins (alkyd) all are organic cure by air oxidation moderate moisture vapor transmission rates good exterior durability in non-aggressive atmospheres topcoats should have good sunlight resistance relatively expensive. 

The sunlight incident upon a 1 square meter area perpendicular to the line of transmission of the solar flux just above the earth s atmosphere provides energy at a rate most closely equivalent to (a) that required to power a pocket calculator, (b) that required to provide a moderate level of lighting for a 40-person-capacity classroom illuminated with fluorescent lights, (c) that required to propel a 2500-pound automobile at 55 mph, (d) that required to power a 100-watt ineandescent light bulb, (e) that required to heat a 40-person classroom to 70T when the outside temperature is -10°F. 

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