OBJECTIVE FORESTRY

FORESTRY

REMOTE SENSING

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The distance of the electromagnetic spectrum that can be captured by the sensor, the bigger the band the better the resolution
A
true
B
false
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Spectral resolution describes the ability of a sensor to define fine wavelength intervals. The finer the spectral resolution, the narrower the wavelength range for a particular channel or band. Black and white film records wavelengths extending over much, or all of the visible portion of the electromagnetic spectrum.

Detailed explanation-2: -Spectral resolution describes the amount of spectral detail in a band. High spectral resolution means its bands are more narrow. Whereas low spectral resolution has broader bands covering more of the spectrum. For example, a multispectral image breaks light into 4 to 36 bands.

Detailed explanation-3: -Spectral resolution refers to the number and dimension of specific wavelength intervals a sensor is able to record. The spectral resolution of a sensor capturing natural color bands of red, green, and blue is finer than a black and white sensor, which would capture all of the visible light wavelengths as one band.

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