Author(s): Jens Ehn; Kai Rasmus; Matti Lepparanta; Kunio Shirasawa
Linked Author(s):
Keywords: No Keywords
Abstract: An ice research station was established in autumn 1999 in Santala Bay near 60°N on the coast of Finland, and data collection based on weekly winter-time sampling and an automatic station has been ongoing until the end of spring 2002. This work included automatic irradiance sensors above and in the ice, as well as spectral data collection of the downwelling shortwave irradiance. The first results of the irradiance time series from year 2000 are presented. The collected data is used to perform tests on the commonly used empirical downwelling radiative flux parameterizations by Zillman, Shine and Iqbal for clear sky fluxes, and Reed and Bennett for all-sky fluxes. For all-sky fluxes during the ice covered period, the best results were derived from the schemes by Shine in combination with Reed.
Year: 2002