Hanna Tietäväinen

TL;DR: In this paper, the EN ISO 15927-4 was modified by using monthly dependent weighting factors for the main climatic parameters in the calculation of heating and cooling energy demand in buildings, which may be used for many applications, such as the energy performance of buildings, the simulation of active or passive solar energy systems, HVAC system performance or indoor climate analyses.

TL;DR: In this article, the authors calculated the annual and seasonal mean temperature of Finland for 162 years based on spatially interpolated monthly mean temperature records using the spatial interpolation method known as kriging, which was used with the following forcing parameters: the geographical coordinates, elevation of the terrain, and percentage share of lakes and sea.

TL;DR: In this article, the authors estimated the magnitude of the radiative forcing due to changes in albedo following the forestation of peatlands, and calculated the net RF by taking into account the changes in both the albedos and the greenhouse gas (GHG) fluxes during one forest rotation.

TL;DR: In this paper, the past and projected future precipitation sum in May-September for two areas in Finland, one located in the south-west (SW) and the other in the north-east (NE), is studied using 13 regional climate simulations and three observational datasets.

TL;DR: Helama et al. as mentioned in this paper presented a multi-proxy reconstruction of temperature histories using a combination of dendrochronological and sclerochronological evidence, and the reconstruction correlated well with the long records of instrumental temperatures from Tornedalen, St. Petersburg, Uppsala and Stockholm.