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The ultraviolet radiation and the total ozone have been monitored in Norrköping, Sweden, since 1983. From these data it has been possible to develop a simple empirical model to compute the distibution of UV in Sweden. The result is presented as monthly maps.

Samples of measured UV spectra are …

The objective of this investigation has been to estimate areal precipitation for the Baltic Sea and its subbasins.
The areal estimates have been computed by use of point precipitation data. These data have been submitted and corrected for the systematic deficits, inherent with precipitation …

The atmospheric transport to Sweden and the deposition there of radioactive material following the Chernobyl accident have been described on the basis of radiological and meteorological data and theoretical calculations of despersion. The radioactive cloud created by the explosion at 01. 23 local …

During the period 2-4 February 1987 one of the most severe episodes of polluted air, which has ever been registered in Sweden, occured over southern Sweden.The sulfur dioxide concentrations reached at that time daily mean values around 300 μg m^-3 in background as well as in urban areas. The sulfur …

This report describes an operational air pollution medel developed at the Swedish Meteorological and Hydrological Institut for the prediction of air pollution concentrations on a local scale. Predictions can be roade in one or several receptor points for emissions from point, area- and traffic …

We are living in a time when there is a great concern and anxiety on climate changes, induced by man or natural. Figures showing trends or abrupt changes may not seldom be based on rather poor climate records. Thus we have started a climate project at SMHI where we have taken great care to avoid …

Snow conditions during the 30 winter seasons 1950/51 - 79/80 have been studied. The snow depths at the middle and last day of the months concerned have been analyzed. The relative number of years with a snow cover reported at these dates was computed and is presented in tables and maps. The …

This report describes a model for calculation of human exposure to air pollution. The model consist of two parts. In the first part air pollution concentrations are calculated, as function of space and time, by using an air pollution model (Omstedt, 1988, Robertson, 1989). Inputdata are routine …

Within the PROMIS project at the Swedish Meteorological and Hydrological Institute a meso-scale network of automatic weather observing stations was established for several purposes . For several of these applications it was considered advantageous to process the data by applying an objective …

For a period of nearly one year temperature readings from small sensors (high quality platinum resistance thermometers) in conventional screens (Stevensson type) and emaller screens (Lambrecht, Young and Vaisala) have been compared to those from a sensor of the same type in a ventilated screen …