Quantitative comparison of measured and simulated O<sub>4</sub> absorptions for one day with extremely low aerosol load over the tropical Atlantic
<p>In this study, we compare measured and simulated O<span class="inline-formula"><sub>4</sub></span> absorptions for conditions of extremely low aerosol optical depth (between 0.034 to 0.056 at 360 nm) on one day during a ship cruise in the tropical Atlantic....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2021-05-01
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| Series: | Atmospheric Measurement Techniques |
| Online Access: | https://amt.copernicus.org/articles/14/3871/2021/amt-14-3871-2021.pdf |
| Summary: | <p>In this study, we compare measured and simulated O<span class="inline-formula"><sub>4</sub></span>
absorptions for conditions of extremely low aerosol optical depth (between
0.034 to 0.056 at 360 nm) on one day during a ship cruise in the tropical
Atlantic. For such conditions, the uncertainties related to imperfect
knowledge of aerosol properties do not significantly affect the comparison
results. We find that the simulations underestimate the measurements by
15 % to 20 %. Even for simulations without any aerosols, the measured
O<span class="inline-formula"><sub>4</sub></span> absorptions are still systematically higher than the simulation
results. The observed discrepancies cannot be explained by uncertainties of
the measurements and simulations and thus indicate a fundamental
inconsistency between simulations and measurements.</p> |
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| ISSN: | 1867-1381 1867-8548 |