✦ LIBER ✦

Infrared device for simultaneous measurement of fluctuations of atmospheric carbon dioxide and water vapor

✍ Scribed by Eiji Ohtaki; Tetsuji Matsui

Publisher: Springer
Year: 1982
Tongue: English
Weight: 920 KB
Volume: 24
Category: Article
ISSN: 0006-8314
DOI: 10.1007/bf00121803

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✦ Synopsis

An infrared device designed to measure simultaneous fluctuations of atmospheric CO* and water vapor concentrations is described. The measuring frequency is 30 Hz. The sensing path length is 20 cm. It is compatible with the path length of the standard type of a sonic anemometer. The noise level of the device is equivalent to fluctuations of about 0.8 ppm peak-to-peak for CO, and 0.02 g kg-' peak-to-peak for water vapor. Field tests have showed that the device is suitable for simultaneous measurement of turbulent fluxes of CO, and water vapor in conjunction with a sonic anemometer.

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