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Mountainbiking
& Snowbiking
24.01.1998, pretty cold and foggy,
upon the Riegelsattl (1029m), a high located
pass connecting the plain of the Danube near Deggendorf
with the dale of the river Regen crossing the Bavarian
Forest. Its a so called "saddle" between
the two mountains there, the Dreitannenriegel (1092m)
at the one hand and the Breitenauriegel (1114m)
at the other hand. The term "saddle" results
of the shape of the altimeter-profile lines visible
in the topographical cards of that area. Such shapes
of passes are quite often here in the mellow-shaped
Bavarian Forest. I personally often search such
"saddles" in the cards to look for the
best option to get to the other side of the mountain
during my biketours. You can imagine its a difference
to climb for an altitude of 1000m e.g. if you needed
to climb else where only up to 800 meters! So buying
and studying these 1:25000 cards is worth it!
This area is located near the BMW-Bikepark
Geißkopf, the worlds biggest bikeparcours
in its discipline. Every mountainbike-freak should
have been there at least one time, in most of the
cases he'll return anyway. A solid base of handling
your bike is necessarily there due to downhills
of 200 meters altitude loss and partly a level of
the tracks lead at 35% downwards. But don't worry
- at the basestation of the bikepark you can rent
the whole equipment needed to do that stuff - from
helmets over full suspension bikes up to full protection-wear.
After doing a few downhill races you can be frank
to yourself and think about if you are really such
a champion on the bike as you always thought before
! I came to the conclusion that i am by far not
so a good downhill-man i claimed before. But try
it on your own to learn to know your real abilities
on the bike !!!
During winter, this area is also a insider resort
to go skiing in the nice winterwood there above.
You'll hardly find a situation overcrowded like
sometimes at the Großer Arber - the most famous
mountain in the Bavarian Forest.
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Observing the
Weather and especially Thunderstorms and Severe
Weather
Here now a nice thunderstorm cell, viewed as
it has already passed my home town Plattling in
the summer 199?.
Behind the cell low Cumuls Fractus is moving by,
while the main part of the cloud has already reached
the top of the troposphere called tropopause. This
zone working like a limitation layer to all clouds
excepted those from volcanoes, is located here in
Europe usually in heights of 9-14 km above ground.
As the sunlight is very hard in these height-levels,
the cumulonimbus reflects the bright sun there above
with a rarely seen white colour to earth. Clouds
who reached this border can only lay themselves
to the lower side of this layer and shaping to what
everyone knows - a cloud like an "amboss".
Clouds of this behaviour consist usually of a mix
of rain, hail and snow moved by severe winds in
the inner cloud. Thats why pilots of ultra-light-airplanes
strictly avoid those clouds - even if you've ever
flown through a thunderstorm by an regular aircraft
you'll know the turbulencies and the conditions
inside such a 10 km high giant. The hardened edges
at the upper part of the Cb at the photo indicate
vigorous up- and downdrafts inside the tower of
the cloud. Speeds up to 130 miles per hour moving
up and down are no exception. Therefore a light
aircraft would be crashed within minutes inside
that cloud. No maneuvering is possible when catched
in such a electrical monster. Even if the storm
dont crashes the plain - hail and lightning will
do it anyway.
Every corn of ice and every drop of rain also contains a certain voltage - either positive or negative. The upper part is an opponent of the base of the cloud and the base of the cloud is loaded vice-versa to the ground(-objects) too. This enables to generate the storm lightning between clouds and clouds and between cloud and ground. Your head also can be a target for lightning, you always are a member of the earth-voltage-field when moving on earth. So dont be stupid and go inside when thunderstorm is approaching - and please not only when it is like that -" Oh! - a lightning!!" - the next second the bang! - thats too late in every case. Well known scientist advise to seek shelter already when the thunderstorm is still within a distance of 8 km, in other words, you hear the thunder 24 seconds after you saw the lightning. This is in my opinion a good advice, because many cases are known, where the lightning bolt leaves the cloud far above the ground and passes many kilometers outside the cell to finally beat at an area, where no rain falls, and no one is expecting a near strike. Consider that single lightnings of more than 50 km length have been repeatedly observed !! One of the deadliest errors is, to believe, oh, the rain is over, so i can surely go out and nothing will happen. Thats totally wrong, the rain is no indication for a possible strike by lightning.
There are also pretty unresearched types of lightning, namely the "blue jets" and the "red sprights" , first seen by research-pilots by the Airforce in their jets flying at the level of the CBs. They saw such ones upwards moving, and not bright but braod light-phenomenons of this red and blue color. They are only able to view when in the CB below simultanously ignits a severe lightning. They are caused by such severe ones.
Another thing is the balllightning, which is
hardly denied by most of the scientists doing studying
these topics. I'll discuss them a lot more here
but i have to inform what's the latest thories are
concerning it.
Well, visitors, i want to finish here, just think
about the facts going on in these clouds over your
homes every summer, it's worth keep on informing.
The Author, 19.03.2001