WALRUS Hyperspectral Radiometer Buoy

WALRUS with extended spar for 2-meter total depth

Collector Options

• Collector types: Radiance (L) and Irradiance (E)
• Above or below the water surface
• Upwelling or downwelling

Lower Spar options

• 1-meter total depth, collectors at top and/or bottom
• 2-meter total depth, collectors at top, middle, and/or bottom

Examples

Four configurations are shown below.  Each has 5 collectors:

• Sky Irradiance in air (E_s)
• 1 or 2 upwelling radiance in air (L_u+)
• 1, 2 or 3 upwelling radiance in water (L_u-)
• The first configuration also measures sky radiance (L_ds)