Podcast
Questions and Answers
What is the primary advantage of using longer wavelengths in remote sensing radars?
What is the primary advantage of using longer wavelengths in remote sensing radars?
- Reduced beam mode variability
- Enhanced polarisation effects
- Improved resolution in cloud-covered areas
- Increased capability to penetrate through precipitation or into a surface layer (correct)
Which radar frequency band is commonly used for terrain surveys and military reconnaissance?
Which radar frequency band is commonly used for terrain surveys and military reconnaissance?
- C-band
- P-band
- L-band
- X-band (correct)
At what wavelength range are radars not significantly affected by cloud cover?
At what wavelength range are radars not significantly affected by cloud cover?
- Greater than 2 cm (correct)
- Less than 2 cm
- Between 2 cm to 4 cm
- Between 4 cm to 10 cm
What is the primary factor affecting beam mode variability in remote sensing radars?
What is the primary factor affecting beam mode variability in remote sensing radars?
Which radar frequency band is used on the NASA/JPL AIRSAR system?
Which radar frequency band is used on the NASA/JPL AIRSAR system?
What is the effect of opposing look directions on agricultural fields in radar images?
What is the effect of opposing look directions on agricultural fields in radar images?
Why are opposing look directions often necessary in areas with high relief?
Why are opposing look directions often necessary in areas with high relief?
What is the local incident angle (θloc) in radar imaging?
What is the local incident angle (θloc) in radar imaging?
What is the largest source of error in radiometric calibration in radar imaging?
What is the largest source of error in radiometric calibration in radar imaging?
What is the difference between topographic displacement in radar and optical systems?
What is the difference between topographic displacement in radar and optical systems?
