Key points are not available for this paper at this time.
A tunable diode laser instrument denoted as DACOM (Differential Absorption CO Measurement) has been developed to meet the fast‐response, high‐precision CO measurement needs of the GTE (Global Tropospheric Experiment) program. Under the GTE program, DACOM participated in the three field missions of CITE 1 (Chemical Instrumentation Test and Evaluation 1), a project involving the intercomparison of trace gas measurement techniques. DACOM performance, including analyses of measurement error sources, is discussed for the ground‐based mission at Wallops Island, Virginia (summer 1983), and two missions on the NASA CV‐990 (fall 1983 and spring 1984). Examples of fast‐response (≈1 s), high‐precision (±1 part per billion by volume, ±1.5% of reading) airborne data are included to illustrate the capability of this instrument.
Sachse et al. (Fri,) studied this question.