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Atmospheric and Oceanic Optics

2017 year, number 5

Main sources of uncertainty in measuring weak near-infrared water vapor continuum absorption using Fourier spectrometer and long optical path

Yu.N. Ponomarev, I.V. Ptashnik, A.A. Solodov, A.M. Solodov
V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
Keywords: континуальное поглощение, водяной пар, погрешность измерения, continuum absorption, water vapour, measurement error

Abstract

We examine the main sources of uncertainties in measuring the near-infrared water vapor continuum absorption using the Fourier spectrometric complex of Institute of Atmospheric Optics SB RAS. The instrumental and methodical errors are considered, including the error in determining baseline, as well as the possible impact of nanoscale complexes of water molecules.