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Title: Aerosol measurements with a shipborne Sun-sky-lunar photometer and collocated multiwavelength Raman polarization lidar over the Atlantic Ocean
Authors: Yin, Z.Ansmann, A.Baars, H.Seifert, P.Engelmann, R.Radenz, M.Jimenez, C.Herzog, A.Ohneiser, K.Hanbuch, K.Blarel, L.Goloub, P.Victori, S.Maupin, F.
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Issue Date: 2019
Published in: Atmospheric Measurement Techniques Vol. 12 (2019), No. 10
Publisher: Göttingen : Copernicus GmbH
Abstract: A shipborne Sun-sky-lunar photometer of type CE318-T was tested during two trans-Atlantic cruises aboard the German research vessel <i>Polarstern</i> from 54<span classCombining double low line"inline-formula">ĝ</span> N to 54<span classCombining double low line"inline-formula">ĝ</span> S in May/June and December 2018. The continuous observations of the motion-stabilized shipborne CE318-T enabled the first-time observation of a full diurnal cycle of aerosol optical depth (AOD) and column-mean Ångström coefficient of a mixed dust-smoke episode. The latitudinal distribution of the AOD from the shipborne CE318-T, Raman lidar and MICROTOPS II shows the same trend with highest values in the dust belt from 0 to 20<span classCombining double low line"inline-formula">ĝ</span> N and overall low values in the Southern Hemisphere. The linear-regression coefficients of determination between MICROTOPS II and the CE318-T were 0.988, 0.987, 0.994 and 0.994 for AODs at 380, 440, 500 and 870 nm and 0.896 for the Ångström exponent at 440-870 nm. The root-mean-squared differences of AOD at 380, 440, 500 and 870 nm were 0.015, 0.013, 0.010 and 0.009, respectively.
Keywords: aerosol; Doppler lidar; lidar; optical depth; photometer; research vessel; Southern Hemisphere; spectrophotometry; African Margin [Atlantic Ocean]; Atlantic Ocean
DDC: 550
License: CC BY 4.0 Unported
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