What I would like to see is a realistic modeling of the wind conditions on the North Shore (Oahu) pali, which is indeed a gliding playground. I've glided in a sailplane
in flightgear (can't remember which) and it's pretty nice, but I was not (am not) proficient enough with modeling the winds and thermals to make it realistic.
After some math I also realized you would need at least 4000' of altitude to run between the first stretch of water.
Thorsten wrote in Tue Sep 13, 2011 6:53 am:Maui happens to be one of my testbeds for placement of thermals (because the terrain changes radiacally over short distances), but since I've never been there, I am down to plausibility. Here are some recent developments of how the conditions are simulated right now.
Kabuki wrote in Tue Sep 13, 2011 4:53 pm:Man, that is gorgeous scenery! How did you do that? Maui sure doesn't look that good on my system.
Anyway, the clouds around Haleakala are typically very dense by mid morning on the north side (left in the pic). They don't "ring" the mountain, but hit it from the northeast and back up out to sea. Meanwhile, the tops, when they reach the height of the crater rim, spill over almost like a waterfall, down the leeward side of
the crater rim, and dissapate within the crater itself. The leeward side is typically cloudless, and gusty.
The form something like a train of clouds that gets thicker as they head out to sea. It's really quite a sight to be standing on the mountain, and seeing the clouds form just a few hundred yards in front of you. The effect is like the sky spinning cotton candy.
The valleys of west maui that open
onto the south-southwest shores have very pronounced winds that can be dangerous to motor vehicles, and a sailor's delight.
I'm also staring a bit at the wind maps - it seems the surface winds are especially strong whenever an obstacle has just been crossed, but much weakened before it. I'll have to stare a bit more to get a feeling for how the airflow actually goes.
Kabuki wrote in Wed Sep 14, 2011 7:41 pm:One of the most amazing demonstrations I saw was in an educational film, where it was
observed with people crowding through a doorway. As they exited the doorway, they briefly sped up for a few steps as they spread out.
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