OBJECTIVE FORESTRY

FORESTRY

REMOTE SENSING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Energy that is artificial light when shooting at night is called ____
A
atmospheric scattering
B
atmospheric window
C
active system
D
None of the above
Explanation: 

Detailed explanation-1: -Artificial light at night (ALAN) is a major form of anthropogenic pollution. ALAN is well known to affect different behaviours during nighttime, when changes in light conditions often have immediate consequences for the trade-offs individuals experience.

Detailed explanation-2: -Active infrared night-vision combines infrared illumination of spectral range 700–1, 000 nm (just over the visible spectrum of the human eye) with CCD cameras sensitive to this light. The resulting scene, which is apparently dark to a human observer, appears as a monochrome image on a normal display device.

Detailed explanation-3: -Artificial sources of light are: Electric bulb, torch, an oil lamp, fluorescent tube, candle.

There is 1 question to complete.