File:Submarine-Karst-spring Kiveri Argolis-Gulf Peloponnese.jpg

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Deutsch: Große submarine Karstquelle „Dini“ beim Ort „Kiveri“, Ostküste des Peloponnes am Argolischen Golf. Das Süßwasser stammt aus dem Plateau (500 – 700 m) des hochgradig verkarsteten Kalkgebirges des nordöstlichen Peloponnes. Die Quelle am Ende eines großen Karstgangs wurde schon 1972 durch einen 150 m langen Ringwall vor der Vermischung mit Meerwasser geschützt hat. Steuerbare Wehre halten bei schwankendem Schüttungsvolumen den Süßwasserspiegel stets so weit oberhalb des Salzwasser-Meeresspiegels (mehrere Meter), dass das physikalisch dichtere, Salzwasser sich nicht mit dem Süßwasser vermischt. Die hohe Jahresdurchschnittsschüttung von 10 m3/s hat je nach Wassermenge nur sensationelle 0.3g/l bis 2,5g/l Chloride! Das Wasser wird über eine ca. 15 km lange Betonrinne statt exzessiver Entnahme des inzwischen versalzenden Brunnenwassers zur Bewässerung in die fruchtbare „Argos-Ebene“ (hinten noch erkennbar) gepumpt.

English: Submarine karst spring “Kiveri”, east coast of the Peloponnese, Argolic Gulf. Precipitation water of the plateau (500-700 m) of the karstified limestone mountains of the Northeastern Peloponnese collects gradually in huge conduits, which run towards the Argolic Coast. The spring’s fresh water was barred already in 1972 by a 150 m long barrage. Gated weirs always maintain the fresh water table higher (since sea water is physically denser), to prevent the saline sea water from mixing with the fresh water. In the immense average annual discharge of 10 3/s there is only 0.3 to 2.5 gr/l Chloride! Along a ca. 15 km long water chute the fresh water is guided to the fertile Argos plain, where it replaces the irrigation by boreholes, whose water is very saline from excessive usage.
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current17:18, 16 December 2016Thumbnail for version as of 17:18, 16 December 20161,800 × 1,200 (1.67 MB)Ulrichstill (talk | contribs)User created page with UploadWizard

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