Bias-adjusted seasonal forecasts of soil moisture for forestry applications in Finland

Hyvärinen, Otto; Venäläinen, Ari; Vajda, Andrea

Seasonal forecasts for forestry have been developed in the Finnish Meteorological Institute in cooperation with Finnish end-users. Such forecasts could help forest companies in preparing for adverse conditions of timber harvesting operations. Bearing capacity for harvesting operations is dependent on soil moisture, and skillful forecasts have potentially large economic value. Using the ECMWF seasonal forecasts, we evaluated the monthly mean soil moisture forecasts for four different start months, with lead times from 0 to 2 months. Forecasts were bias adjusted, and showed skill in the first month for all four months. After the first lead month, winter months fared a bit better than summer months.

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Hyvärinen, Otto / Venäläinen, Ari / Vajda, Andrea: Bias-adjusted seasonal forecasts of soil moisture for forestry applications in Finland. 2020. Copernicus Publications.

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