Das extremste Wetter in unserem Sonnensystem
Verfasst: Mo 2. Jan 2006, 07:05
Habt ihr gewusst, dass auf Saturn und Neptun Windböen von 400 Metern in der Sekunde (Überschall!) normal sind, dass es auf der Oberfläche der Venus 427 Grad heiss ist oder dass es auf dem Mars Zyklone gibt mit der vierfachen Grösse von Texas und einem 200 Meilen Augendurchmesser? Oder dass auf Jupiter seit über 300 Jahren ein Monstersturm (Hypercane) mit einem Durchmesser von 24,800 kilometern wütet (The Great Red Spot) oder dass es auf der Oberfläche von Pluto -212 Grad kalt ist (Windchill nicht miteingerechnet)?
Dies und noch mehr könnt ihr hier nachlesen:
http://www.space.com/scienceastronomy/s ... 10306.html
Zwei sehr interessante Abschnitte habe ich euch noch herauskopiert:
1.
"The root cause of all wind is energy. On Earth, the Sun warms the planet at different rates in different places. These temperature differences create pressure differences, and air moves from high pressure to low pressure to try to equalize the differences.
The giant planets also generate a little energy of their own. Still, because it is so far from the Sun, Jupiter gets about one-twentieth the amount of energy, compared to its surface area, as Earth, according to Ingersoll. And Neptune has about one-twentieth the energy of Jupiter to work with.
"Yet there is an inverse relation between energy input and the speed of the winds," Ingersoll said. "Neptune is the windiest planet, Jupiter is intermediate, and Earth has the weakest winds. This inverse relation is a mystery."
2.
"While Earth's weather may seem tame compared to some of these crazy places, Ingersoll notes one important feature -- a scientific fact -- that forecasters still wrestle with every day: Our planet has the most unpredictable and inexplicable weather in the solar system."
Gruss Chrigi
PS: Ist schon spannend unser Universum, was?
- Editiert von Christian Matthys am 05.01.2006, 12:46 -
Dies und noch mehr könnt ihr hier nachlesen:
http://www.space.com/scienceastronomy/s ... 10306.html
Zwei sehr interessante Abschnitte habe ich euch noch herauskopiert:
1.
"The root cause of all wind is energy. On Earth, the Sun warms the planet at different rates in different places. These temperature differences create pressure differences, and air moves from high pressure to low pressure to try to equalize the differences.
The giant planets also generate a little energy of their own. Still, because it is so far from the Sun, Jupiter gets about one-twentieth the amount of energy, compared to its surface area, as Earth, according to Ingersoll. And Neptune has about one-twentieth the energy of Jupiter to work with.
"Yet there is an inverse relation between energy input and the speed of the winds," Ingersoll said. "Neptune is the windiest planet, Jupiter is intermediate, and Earth has the weakest winds. This inverse relation is a mystery."
2.
"While Earth's weather may seem tame compared to some of these crazy places, Ingersoll notes one important feature -- a scientific fact -- that forecasters still wrestle with every day: Our planet has the most unpredictable and inexplicable weather in the solar system."
Gruss Chrigi
PS: Ist schon spannend unser Universum, was?
- Editiert von Christian Matthys am 05.01.2006, 12:46 -
