Free radicals in the stratosphere: a new observational technique.
A new approach to in situ observations of trace reactive species in the stratosphere is described. A balloon-borne system, floating 40 kilometers above the earth's surface, successfully lowered and then retracted a cluster of instruments a distance of 12 kilometers on a filament of Kevlar. This instrument cluster is capable of detecting gas-phase free radicals at the part-per-trillion level. The suspended instrument array has excellent stability and has been used to measure atomic oxygen concentrations in the stratosphere.
Anderson
J G
JG
Hazen
N L
NL
McLaren
B E
BE
Rowe
S P
SP
Schiller
C M
CM
Schwab
M J
MJ
Solomon
L
L
Thompson
E E
EE
Weinstock
E M
EM