CAMEX-4 Dual-Beam UV-Absorption Ozone Photometer

Ozone is measured in situ using a photometer consisting of a mercury lamp, two sample chambers that can be peridically scrubbed of ozone, and two detectors that measure the 254-nm radtion transmitted through the chamber from the lamp. The ozone number density is calculated using the ozone absorption cross-section at 254-nm and the Beer-Lambert Law. The one second data collection rate the minimum detectable concentration of ozone (one sigma) is 1.5 x 10^10 molecules/cm^3. The Ozone Photometer flew on the NASA ER-2 during CAMEX-4.

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(START DATE: 2001-08-16 STOP DATE: 2001-09-25)

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