The backscattered signal results from:
Rice monitoring using Sentinel-1 SAR data

Quiz
•
Science
•
10th Grade
•
Medium
Hoa Phan
Used 3+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Surface scattering
Volume scattering
Multiple volume-surface scattering
All of the above
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The radar measurements depends on:
Polarisation, Incidence angle,
Polarisation, radar frequency bands
Polarisation, Incidence angle, radar frequency bands
Polarisation, Incidence angle, radar frequency bands, speckle noise
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the wrong information
Low backscatter radar response on flat surface
Large radar response on surface with local slope
Scattering mechanisms doesn't depend on surface roughness
Scattering mechanisms depend on dielectric properties of the medium
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Find the wrong answer for "Sentinel-1 SAR has:.."
Two satellites (S1-A and S1-B) with C-band SAR
Dual polarizations: HH & VV
All-weather sensor: Not sensitive to clouds
In operation since 2014
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The wavelength of C-band:
1.7-2.4 (cm)
2.4-3.8 (cm)
3.8-7.5 (cm)
7.5-15 (cm)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After sowing or transplanting, the rice plants go through ... phases:
3
4
5
6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The specific radar physical interaction mechanisms for rice fields: vegetation layer, wet soil (or water).
True
False
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