The map, generated using SMOS data, shows the soil moisture values across central Europe on 31 May and 2 June 2013. The blues indicate wetter soils and the yellow and orange colours indicate dryer soils. For example, a value of 0.50 means that there is 500 litres of water in one cubic metre of soil. Heavy rainfall has led to disastrous flooding in Germany, Austria, the Czech Republic and Slovakia.