Blautopf
The deep-blue, funnel-shaped karst spring in Blaubeuren that is the outlet of the Blauhöhle system. A popular sightseeing spot; diving is reserved for the permitted research group.
The Blautopf is a roughly 22 m deep, funnel-shaped spring pool in the centre of Blaubeuren. Its striking blue colour comes from sunlight: the deep water absorbs the other colours, and reflections off fine calcium carbonate particles intensify the blue. Water leaves the pool as the Blau river.
The pool is the underwater entrance to the Blautopfhöhle, part of the Blauhöhle system. Divers first reached the bottom in 1957, and the cave beyond has been explored by research divers since; today diving is carried out by ARGE Blautopf under a permit held since 1997, and the cave is not open to visitors.
The grounds around the spring have been under renovation since August 2024, with access to view the Blautopf maintained during the works.
पर्यावरण
Cold karst spring water (about 9 °C) flowing out of a funnel-shaped pool; discharge and clarity vary strongly with rainfall.
परिस्थितियाँ
Mean outflow about 2,300 L/s, over 30,000 L/s after heavy rain (town figures).
प्रकाशित स्रोतों से सामान्य अनुमानित दायरे, वर्तमान परिस्थितियाँ नहीं।
सुविधाएँ
Town-centre location; tourist information at Kirchplatz 10, Blaubeuren.
इस पृष्ठ का हर तथ्य, अपने source के साथ (7)
| तथ्य | स्थिति | स्रोत |
|---|---|---|
| The Blautopf is a funnel-shaped karst spring about 22 m deep. | सत्यापित | [4] [1] |
| The water is about 9 °C year-round. | सत्यापित | [4] |
| Mean discharge is about 2,300 L/s, rising above 30,000 L/s after heavy rain. | सत्यापित | [4] |
| The cave system cannot currently be entered by visitors; ARGE Blautopf has held a diving permit since 1997.Permit issuer not named. | सत्यापित | [1] [3] |
| The Blautopf area has been under renovation since August 2024, with access to the Blautopf maintained. | सत्यापित | [2] |
| The blue colour results from sunlight: other colours are absorbed in the deep water and reflections off calcium carbonate particles intensify the blue. | सत्यापित | [4] |
| Diving is limited to the research group ARGE Blautopf, which has held a diving permit since 1997. | सत्यापित | [3] [1] |
सत्यापित: किसी आधिकारिक या प्राथमिक स्रोत से पुष्टि हुई जिसे हमने खोला। रिपोर्ट किया गया: केवल द्वितीयक स्रोत से। स्रोतों में मतभेद: नोट में दोनों संस्करण दिए गए हैं। पुराना हो सकता है: हमें मिला सबसे नया स्रोत भी पुराना है।
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