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Flood mapping is based on an inventory of existing information for the area of interest. This is often combined with measurements of flows and water levels. Based on these measurements and hydraulic models we calculate water levels and water distribution at different extreme situations. We also Last updated: Mar 13, 2024

SMHI has a long tradition of operational hydrological modelling including forecasts of water discharge, fire hazard, design of dams and dam regulation routines, flood risk, water quality and substance transport and the effects of climate change on hydrology and water quality. Last updated: Nov 01, 2023

assessments of what the local seawater level will be in the future along a particular stretch of coast – and along with the various risk levels involved. Part from the international and regional climate scenarios we take into account the absolute elevation of the land, which varies along the Swedish coast Last updated: Apr 23, 2014

Trading on the Nordic and European energy market calls for in-depth knowledge of water availability in the countries with major hydropower production. Last updated: Mar 13, 2024

per day. The inflows have very little effect on daily sea level observations since water flows continually out through the Danish Straits. Read more about the Baltic Sea, see the links to the right. Last updated: Mar 20, 2017

to industrial production and a shortage of drinking water.   If a waterworks does not switch off its raw water intake in time when threatened by a toxic discharge, the entire water production facility may have to be closed down. It is also important to include information about pollutant dispersion Last updated: Oct 24, 2022

street environment can be expected to have a less significant impact. Comfort index A comfort index can be used to summarise the effect of various climate parameters. One example of such an index is the Universal Thermal Climate Index (UTCI). This involves a higher level of ambition in relation to how Last updated: Dec 21, 2020

SMHI contributes to  through international development cooperation. The overall aim is that all countries shall have an equal capacity to handle and plan for the effects of weather, water and climate.  Last updated: Feb 22, 2024

during August and September. There are several likely contributory and concurrent causes to the recent development such as changes in wind speed and direction, increased loading of organic matter to the deep water due to eutrophication, altered vertical mixing and stratification, changes in precipitation Last updated: Mar 20, 2017