This sea-ice albedo data set contains measured spectral albedos for
snow-free and snow-covered Antarctic sea-ice types.
Measurements were made during austral spring and summer cruises of the
Australian National Antarctic Research Expeditions in 1988, 1996 and
2000 using a portable spectrophotometer in the wavelength range
Spectral ... albedos are reported for the following snow-free ice types:
grease, nilas, young-grey, first-year<0.7 m and first-year>0.7
m. Spectal albedos are also reported for nilas and first-year>0.7 m
under a thin (<3cm) snow cover, and both first-year<0.7 m and
first-year>0.7 m under a thick (>3cm) snow cover.
Instrument platforms include a basket mounted boom suspended from the
ship's crane, direct on-floe observations, and a helicopter mounted
instrumented boom. Corrections for shadowing and variation in solar
elevation during albedo scans have been applied as described in:
Allison, I, R.E. Brandt, and S.G. Warren. East Antarctic sea ice;
albedo, thickness distribution and snow
cover. J. Geophys. Res. (Oceans), 98, 12417-12429. 1993.