Brubbel - A Cold Geyser

This type of geyser is unique in Europe. The water is cold, 15°C. This region used to be volcanically active. Brubbel is driven to erupt every 30 minutes by carbon-dioxide from a chamber 30 meters down.

In the cavern carbon-dioxide gets in solution in the water until it is saturated. More carbon-dioxide starts to rise the pressure in the chamber till the water starts to rise again. With less hydrostatic pressure in the water column, carbon-dioxide starts to degas in the ascending water and forces the water to ascend faster. The cold geyser erupts.

This happens every 30 minutes, though every second eruption is higher, up to 3-4 meters.

My panorama depicts the smaller of the two eruptions. I liked that version more than the one I took half an hour later. In this one a group of people, who likely attended a funeral before, came by to watch Brubbel and to their opposite some belgian or dutch tourists in shorts.

I also took two additional panoramas, one ten minutes before the eruption and one three minutes after it.

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Europe / Germany

Lat: 50° 9' 13.68" N
Long: 6° 43' 12.72" E

→ maps.google.com [EXT]

Precision is: Unknown / Undeclared.

Coolpix 5000 with the fisheye FC-E8 set to full frame, Manfrotto QTVR Kit 302+, stiched with PTMac / XPoints / MakeCubic, Nadir inserted with PaintShopPro on a PC.