Comment Well I hate to burst your balloon but... (Score 5, Informative) 157
Actually not quite...
The balloon flights actually only last about two hours and then the balloons break. In fact the balloon flights in question are done world wide at 0000 and 1200 UCT (Used to be GMT). They record temperature, humidty, air pressure and by triangulating from the ground tracking antenna you can calculate upper level winds.
I'm actually being generous with the length of flight. The time of year has a lot to do with the length of flight. The calculated height of the flight is related very much to the air pressure and for a flight to be valid it generally must be below 100 millibars. (The higher the balloon the lower the millibar reading). A flight reaching 3 millibars is around 120,000 ft. Summer flights usually have balloon bursts below 15 millibars. In winter early bursts, above 100 millibars, can require a second release, provided it happens within a given time window. The weather instrument package is called a radiosonde. Two types of upper air balloon a generally used for launching off the surface. For calmer winds a soft cheap latex balloon called a Kaysam is used and for adverse wind conditions or launch from a ship at sea a severe weather balloon called a Totex is used. (Totex is more rugged and more expensive)
They say they plan to hitch a ride on the existing balloons. The short duration is going to be a problem. The balloons expand as they rise and then go BOOM
I worked as an Aerological Observer for Environment Canada at a variety of Arctic Weather stations for about six years sending these suckers up there! There are long duration high altitude balloons out there, but the upper air program the article refers to doesn't use them, and the balloon shown in the photograph is of the variety to quickly put a few "holes" in the flight duration claim!
Watch the investor's money go BOOM!
