Observation
Observation is typically made via different 'channels' of the Electromagnetic spectrum, in particular, the Visible and Infrared portions.
Some of these channels include :
- Visible and Near Infrared: 0.6 μm – 1.6 μm – For recording cloud cover during the day
- Infrared: 3.9 μm – 7.3 μm (Water Vapour), 8.7 μm, – 13.4 μm (Thermal imaging)
Read more about this topic: Weather Satellite
Famous quotes containing the word observation:
“There is no better proof of a man’s being truly good than his desiring to be constantly under the observation of good men.”
—François, Duc De La Rochefoucauld (1613–1680)
“I should say that the most prominent scientific men of our country, and perhaps of this age, are either serving the arts and not pure science, or are performing faithful but quite subordinate labors in particular departments. They make no steady and systematic approaches to the central fact.... There is wanting constant and accurate observation with enough of theory to direct and discipline it. But, above all, there is wanting genius.”
—Henry David Thoreau (1817–1862)
“There are three principal means of acquiring knowledge available to us: observation of nature, reflection, and experimentation. Observation collects facts; reflection combines them; experimentation verifies the result of that combination. Our observation of nature must be diligent, our reflection profound, and our experiments exact. We rarely see these three means combined; and for this reason, creative geniuses are not common.”
—Denis Diderot (1713–1784)