UHF Power Amplifier

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Off topic 13 February 2021

De Kwade Hoek, near Havenhoofd, Goeree

North Sea Level rise

I have always had the idea, that past years the level of the North Sea has risen very rapidly. This is what the main stream media tries to make us aware of. Some meters rise coming years would be possible they say.

However, lately I bumped into this article:

https://klimaatgek.nl/wordpress/2021/01/17/de-zeespiegel-in-nederland-1901-t-m-2019/#more-7043

I found that the last 100 years the North Sea level rise is lineair and does not show a grow acceleration. The absolute North Sea level rise is appr. 15 centimeters in a century (100 years).

This graph shows the average height of 6 sea costal stations in The Netherlands.

Deltares has published a nice graph showing the sea level trend.

In spite of this (only) 15 cm rise per century, I am not underestimating the forces of water and wind. I have a special interest in the sea level rise because I live on Goeree-Overflakkee. This island was struck by the ‘Watersnoodramp’ (North Sea flood) that took place in the night of 31 January/ 1 February 1953.

A combination of a high spring tide and a severe windstorm over the North Sea caused a storm tide. Dykes broke and the sea flooded up to about 6 meters above the mean sea level.

Today, this happened exactly 68 years ago. During this disaster 1836 people in Zeeland, Brabant and Zuid-Holland were killed. Also on the island where I live (Goeree-Overflakkee) more than 300 people lost their lives (Oude Tonge).

                                    Oude Tonge, 1 February 1953

Today, many people in the neighbourhood commemorate the flood and its victims.

Interesting story for radio amateurs: About 20 km from where I live, in Zierikzee (capital city of Schouwen Duiveland), Peter Hossfelt jr. –working in a radio store/shop - managed to make a 80 mtr band transmitter to inform the rest of Holland about the disaster that had taken place. A replica of this transmitter can nowadays be found in the ‘ Watersnoodmuseum’ in Ouwerkerk.

More: https://www.pa3esy.nl/zelfbouw/Watersnoodzender-1953/html/Watersnoodzender_set.html