Aerosol measurements with a shipborne Sun–sky–lunar photometer and collocated multiwavelength Raman polarization lidar over the Atlantic Ocean
<p>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 class="inline-formula"><sup>∘</sup></span> N to 54<span class="...
| Main Authors: | , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2019-10-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://www.atmos-meas-tech.net/12/5685/2019/amt-12-5685-2019.pdf |
| Summary: | <p>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 class="inline-formula"><sup>∘</sup></span> N to 54<span class="inline-formula"><sup>∘</sup></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 class="inline-formula"><sup>∘</sup></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.</p> |
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| ISSN: | 1867-1381 1867-8548 |