1. Spectroradiometer For more info reading Chapter 15

2. Spectraoradiometer Solar radiation

3. White (25), sky (25), white (5), sky (5), and consine

5. Spectroradiometer Albedo of snow, ice, water, and melt ponds

6. Air board remote sensing ： Albedo of snow, ice, water, and melt ponds Reflective radiation

7. Simultaneously Incidence solar radiation

8. Flight direction 119 m 84m D=44 m Showing the two footprints at the ground surface when helicopter altitude is at 100m.

9. Imaging and spectral Measurements: from helicopter

10. http://www.utsa.edu/lrsg/Fieldwork/spec_measu.htm