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:
“It’s a particular Observation I have always made, That of all Mortals, a Critick is the silliest; for by inuring himself to examine all Things, whether they are of Consequence or not, he never looks upon any Thing but with a Design of passing Sentence upon it; by which Means, he is never a Companion, but always a Censor.”
—Richard Steele (1672–1729)
“That observation which is called knowledge of the world will be found much more frequently to make men cunning than good.”
—Samuel Johnson (1709–1784)
“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)