John Lindsey: The measurements of weather balloons (The San Luis Obispo Tribune)

By John Lindsey -- Every day around 4 a.m., the 30th Weather Squadron from Vandenberg Air Force Base in northern Santa Barbara County launches a weather balloon with a tiny transmitter called a radiosonde attached. As the weather balloon rises through the atmosphere, this transmitter broadcasts temperature, pressure and humidity levels, as well as Global Positioning System coordinates for the ...

More...
by Yahoo Parachute News