What is the measure in change of elevation throughout the elbe river?

The Elbe River has a total length of about 1,094 kilometers (680 miles) and features a change in elevation of approximately 1,400 meters (about 4,593 feet) from its source in the Czech Republic to its mouth at the North Sea. The river flows through varied terrain, including mountainous regions, plains, and urban areas, leading to a gradual decline in elevation overall. The most significant elevation changes occur in the river's upper course, while the lower stretches near the coast are relatively flat.