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000279347 1001_ $$0P:(DE-HGF)0$$aMin, K.-E.$$b0
000279347 245__ $$aA broadband cavity enhanced absorption spectrometer for aircraft measurements of glyoxal, methylglyoxal, nitrous acid, nitrogen dioxide, and water vapor
000279347 260__ $$aKatlenburg-Lindau$$bCopernicus$$c2015
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000279347 520__ $$aWe describe a two-channel broadband cavity enhanced absorption spectrometer (BBCEAS) for aircraft measurements of glyoxal (CHOCHO), methylglyoxal (CH3COCHO), nitrous acid (HONO), nitrogen dioxide (NO2), and water (H2O). The instrument spans 361–389 and 438–468 nm, using two light emitting diodes (LEDs) and a grating spectrometer with a charge-coupled device (CCD) detector. Robust performance is achieved using a custom optical mounting system, high power LEDs with electronic on/off modulation, state-of-the-art cavity mirrors, and materials that minimize analyte surface losses. We have successfully deployed this instrument during two aircraft and two ground-based field campaigns to date. The demonstrated precision (2σ) for retrievals of CHOCHO, HONO and NO2 are 34, 350 and 80 pptv in 5 s. The accuracy is 5.8, 9.0 and 5.0 % limited mainly by the available absorption cross sections.
000279347 536__ $$0G:(DE-HGF)POF3-243$$a243 - Tropospheric trace substances and their transformation processes (POF3-243)$$cPOF3-243$$fPOF III$$x0
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000279347 7001_ $$0P:(DE-HGF)0$$aWashenfelder, R. A.$$b1$$eCorresponding author
000279347 7001_ $$0P:(DE-HGF)0$$aDubé, W. P.$$b2
000279347 7001_ $$0P:(DE-HGF)0$$aLangford, A. O.$$b3
000279347 7001_ $$0P:(DE-HGF)0$$aEdwards, P. M.$$b4
000279347 7001_ $$0P:(DE-HGF)0$$aZarzana, K. J.$$b5
000279347 7001_ $$0P:(DE-HGF)0$$aStutz, J.$$b6
000279347 7001_ $$0P:(DE-Juel1)6776$$aLu, K.$$b7
000279347 7001_ $$0P:(DE-Juel1)16347$$aRohrer, F.$$b8$$ufzj
000279347 7001_ $$0P:(DE-HGF)0$$aZhang, Y.$$b9
000279347 7001_ $$0P:(DE-HGF)0$$aBrown, S. S.$$b10
000279347 773__ $$0PERI:(DE-600)2507817-3$$a10.5194/amtd-8-11209-2015$$gVol. 8, no. 10, p. 11209 - 11254$$n10$$p11209 - 11254$$tAtmospheric measurement techniques discussions$$v8$$x1867-8610$$y2015
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