Weather Banter - View Single Post

Brian Salt · November 13th 04, 08:01 PM posted to sci.geo.meteorology

In article E9sld.110274$cJ3.88730@fed1read06,
(Dan Mckenna) wrote:

to have a second observer in case I lost track or wrote
down the wrong reading

That might well be the reason for the second pillar, as a confirmation of
the readings, especially considering the short distance between them.

The balloon would have been launched from the same point, i.e. not more
than a few feet from the theodolites.

as the ascent
rates for a standard balloon and fill are known.

I wonder if that applied in 1942? No reason why not, I suppose.