At Eye Level
Looking for Landing Place
Tightness
Landing
Church John the Baptist
Ice-Land
Freedom
Grandness
In Line
Full Speed Ahead
The River
Roofs
Up and Away
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The Bavarian Sea
Cross Country Ski Run
Dog with Girl
The Landing Place
Embark Point
Shifting to the Lorry
Finishing
Deflating the Balloon
Beeing Baptized
Small Blower
Big Blower
Balloon Glow
Coming Down
H.F.F. - Three Levels of Movement
Back on Stage
Winter Dreams are Coming True
Winter Dreams #2
H.F.F. - Winter Dreams #3
Good Morning with EGON *)
Dumping the Snow
Let it Flow
Break of Dawn
Main Square
Shops Awakening
Cafeterias Opening
Balcony Closed
Guardian Watching
Caps Growing
A Great Deal Too Much
Neighbourly Help
Unemployed
St. Johann in Tyrol
Winter Forest
Off the Beaten Track
Kaiser Mountains, Tyrol
Kitzbüheler Horn
Home Away from Home
H.F.F. - with the Gmail Chapel
Advice for Donald 45th
No Chance Without Snowshoes
In Memoriam
Kitzbüheler Horn
High Noon
Alpine Rescue Service
Aerial Rescue
The Race is On
Musher
Without Musher
Full Alertness
Ice Circles
In File
Patterns of Nature
Lake WALCHSEE
Dancing With Clouds
Alongside the Road
Up and Away
Hot Air
Head-to-Head
Scheduling
* Ascension *
* Embossment *
* Christmas Mountains *
* Christmas Dog *
* Flying Christmas ~~~~ *
* Christmas Walk *
* Christmas Morning *
* Holy Night *
* Merry Christmas *
Stillness
Off the Beaten Track
White Death is Waiting
Dual Track Guideway
That's Fun
Closed
Breezy Adventure
Mother Huldas Support
Bottom Up
No Other Way Up
Kitzsteinhorn, 3.203m
Cable Cars
H.F.F. - Blue!
Full in Action
It's Not Only Fun
Uplifts Mandatory
Low Season
EOS
Twosome or Threesome . . .
It's Wintertime!
The Worlds Highest Accessible Summit Cross
Night of Silence
Night of Fright (1)
Night of Fright (2)
Night of Fright (3)
The Nuarach Trail
You're Never Alone
Dizzy Height
Alongside the Abyss
To the Mitterhorn via "Naked Dog"
Mitterhorn, 2.506m
Lofer Mountains from the West
Mountaineers Dreams
Chapel St. Antonius
Lofer Mountains
Highway for Skiers
The Simple Method
Snow Canon
Preparing the Slopes
Helpless Answer to Global Warming
In Vain - But Not For Free!
Full Moon
Never Ending . . . . . H.F.F.
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" Bilder aus der Region wo ich wohne... Photos de la région où je vis ...Pictures from the region where I live ..."
" Bilder aus der Region wo ich wohne... Photos de la région où je vis ...Pictures from the region where I live ..."
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1 117 visits
Amazing Structures
I never saw those structures before.
The reason is exciting.
2. This phenomenon is known from elsewhere: The phenomenon of ice circles has bee described in 1882. But it didn't evoke interest of scientists before 1995, when very large ice circles were seen on satellite photographs of lake Baikal with diameters of some kilometers. As recently as 2009 those ice circles were explored. Measurements of temperature and flow underneath the frozen surface uncovered the mystery.
Beneath the ice circles large vortices are stirring. Those circulating waters cause the dark ringlike structures. The vortices originate from ascending methane bubbles, which are developping by decomposing of organic materials at the bottom of the lake. The bubbles take warm waters on their way up. A vertical flow results, which is circling under the influence of the Coriolis force - in the same manner as waters do within the plug hole of an wash-bowl, but reverse.
www.spiegel.de/wissenschaft/natur/a-674932.html
If you know, what you have to be looking for, you'll find some more interesting pictures within the worldwide web:
www.leidorf.de/images/dzoom/grafik/1Ds38720_Eis.jpg
~~~~~
Ich hab nie zuvor solche Eisstrukturen gesehen.
Die Erklärung ist erstaunlich:
2. ist das Phänomen von anderswo bekannt: Das Phänomen der Eiskreise wurde schon 1882 beschrieben, erweckte aber erst 1995 wissenschaftliches Interesse, weil auf Satellitenaufnahmen kilometergroße Eiskreise auf dem Baikalsee entdeckt wurden. Erst 2009 wurden diese Eiskreise genauer erforscht. Temperatur- und Strömungsmessungen unter der Eisoberfläche brachten die Erklärung.
Unter den Eiskreisen bewegen sich Strudel. Das kreisförmig zirkulierende Wasser verursacht die dunklen Ringstrukturen im Eis. Ursache für die Strudel ist aufsteigendes Methangas aus sich zersetzendem Pflanzenmaterial am Boden des Sees. Die Gasblasen nehmen wärmeres Wasser mit hoch. Es entsteht eine Aufwärtsströmung, die sich unter dem Einfluss der Corioliskraft zu drehen beginnt - wie das Wasser im Abfluss eines jeden Waschbeckens, nur umgekehrt herum.
www.spiegel.de/wissenschaft/natur/a-674932.html
Wenn man weiß, wonach man suchen soll, findet man übrigens weitere interessante Aufnahmen:
www.leidorf.de/images/dzoom/grafik/1Ds38720_Eis.jpg
~~~~~
Aerial photo while ballooning near Walchsee (Tyrol, Austria), January 2016.
Disclosing the secret, part 1:
Disclosing the secret, part 3:
Translate into English
The reason is exciting.
2. This phenomenon is known from elsewhere: The phenomenon of ice circles has bee described in 1882. But it didn't evoke interest of scientists before 1995, when very large ice circles were seen on satellite photographs of lake Baikal with diameters of some kilometers. As recently as 2009 those ice circles were explored. Measurements of temperature and flow underneath the frozen surface uncovered the mystery.
Beneath the ice circles large vortices are stirring. Those circulating waters cause the dark ringlike structures. The vortices originate from ascending methane bubbles, which are developping by decomposing of organic materials at the bottom of the lake. The bubbles take warm waters on their way up. A vertical flow results, which is circling under the influence of the Coriolis force - in the same manner as waters do within the plug hole of an wash-bowl, but reverse.
www.spiegel.de/wissenschaft/natur/a-674932.html
If you know, what you have to be looking for, you'll find some more interesting pictures within the worldwide web:
www.leidorf.de/images/dzoom/grafik/1Ds38720_Eis.jpg
~~~~~
Ich hab nie zuvor solche Eisstrukturen gesehen.
Die Erklärung ist erstaunlich:
2. ist das Phänomen von anderswo bekannt: Das Phänomen der Eiskreise wurde schon 1882 beschrieben, erweckte aber erst 1995 wissenschaftliches Interesse, weil auf Satellitenaufnahmen kilometergroße Eiskreise auf dem Baikalsee entdeckt wurden. Erst 2009 wurden diese Eiskreise genauer erforscht. Temperatur- und Strömungsmessungen unter der Eisoberfläche brachten die Erklärung.
Unter den Eiskreisen bewegen sich Strudel. Das kreisförmig zirkulierende Wasser verursacht die dunklen Ringstrukturen im Eis. Ursache für die Strudel ist aufsteigendes Methangas aus sich zersetzendem Pflanzenmaterial am Boden des Sees. Die Gasblasen nehmen wärmeres Wasser mit hoch. Es entsteht eine Aufwärtsströmung, die sich unter dem Einfluss der Corioliskraft zu drehen beginnt - wie das Wasser im Abfluss eines jeden Waschbeckens, nur umgekehrt herum.
www.spiegel.de/wissenschaft/natur/a-674932.html
Wenn man weiß, wonach man suchen soll, findet man übrigens weitere interessante Aufnahmen:
www.leidorf.de/images/dzoom/grafik/1Ds38720_Eis.jpg
~~~~~
Aerial photo while ballooning near Walchsee (Tyrol, Austria), January 2016.
Disclosing the secret, part 1:
Disclosing the secret, part 3:
* ઇઉ *, autofantasia, tigermaus, Pam J and 19 other people have particularly liked this photo
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