Earth

Rhine River – Europe’s Second-Largest River – Runs Dry

Copernicus Sentinel-2 satellite images show the stark difference between August 2021 and August 2022 on the Rhine River near Cologne.

Water levels on the Rhine River, Europe’s second-largest river, have continued to fall due to soaring temperatures and lack of rainfall. The low water levels are preventing many vessels from navigating through the waters at full capacity. The Copernicus Sentinel-2 mission captured satellite images of part of the Rhine River near Cologne. They show the stark difference between August 2021 and August 2022.

Flowing from the Swiss Alps to the North Sea, the Rhine River is an important shipping route for many products from grains to chemicals to coal. When water levels drop, cargo vessels need to sail with reduced load, so they don’t run aground.

Rhine River 2021

Rhine River on August 25, 2021. Credit: Contains modified Copernicus Sentinel data (2021), processed by ESA, CC BY-SA 3.0 IGO

Water levels at the chokepoint of Kaub, near Frankfurt, fell to 32 cm (13 inches) in depth on Monday, down from 42 cm (17 inches) last week. Ships, however, need around 1.5 m (5 feet) to be able to sail fully loaded. This means that current levels are making it difficult for larger ships to navigate through the waters. Freight ships continue to sail, but only with around 25% to 35% of the ship’s capacity.

The low water levels are emerging earlier than usual, with the lowest water levels typically recorded in September or October. However, reduced temperatures and predicted rainfall forecasted for this week may offer much-needed relief to the Rhine.

Rhine River on August 12, 2022. Credit: Contains modified Copernicus Sentinel data (2022), processed by ESA, CC BY-SA 3.0 IGO

The phenomenon facing the Rhine is common across much of Europe after an unusually hot and dry summer, which caused wildfires and water shortages.

The Copernicus Sentinel-2 satellites capture high-resolution imagery that provide information about the conditions on Earth, such as plant life, soil, and coastal areas. The mission consists of two satellites both of which carry an innovative multispectral imager – a camera that captures optical images over a range of wavelengths beyond visible light.

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  • What a stupid, misleading headline. The Rhine didn't "run dry". And no, the decline is not due to atmospheric temperature. It is due to drought. AND, a word is missing from the lede. Great job, editors.

  • Once upon a time editors could actually edit.
    You're in such a hurry to get your article online that it doesn't make sense and now you just look sad.

    • These "I have a right to my own private swimming pool" types might finally 'get it' the day their taps run dry + the aquifers have nothing but air + sand to fill their 'Evian' bottles. Nationalise all water + utilities. Private Co's care nothing but for huge profits. It is ironic that it'll be Modern Man who will be responsible for the end of civilisation as we know it. And all for nothing but pure greed + selfishness. Everything for the 1%. Well, we deserve what we have coming, just hope animals, flora + fauna will survive.
      Tragic.

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European Space Agency (ESA)

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