Soil moisture map of a Danube river section in dry conditions. The colours correspond to the soil moisture gradations in the upper 0-5 cm-thick layer.
Dark green ranges between 0 and 0.05 m3/m3
Light green ranges between 0.05 and 0.10 m3/m3
Light blue ranges between 0.10 and 0.20 m3/m3
Dark blue ranges between 0.20 and 0.35 m3/m3, and represents open water.