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| Titel |
Airborne Multiwavelength High Spectral Resolution Lidar (HSRL-2) observations during TCAP 2012: vertical profiles of optical and microphysical properties of a smoke/urban haze plume over the northeastern coast of the US |
| VerfasserIn |
D. Müller, C. A. Hostetler, R. A. Ferrare, S. P. Burton, E. Chemyakin, A. Kolgotin, J. W. Hair, A. L. Cook, D. B. Harper, R. R. Rogers, R. W. Hare, C. S. Cleckner, M. D. Obland, J. Tomlinson, L. K. Berg, B. Schmid |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 7, no. 10 ; Nr. 7, no. 10 (2014-10-10), S.3487-3496 |
| Datensatznummer |
250115931
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| Publikation (Nr.) |
 copernicus.org/amt-7-3487-2014.pdf |
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| Zusammenfassung |
| We present measurements acquired by the world's first airborne 3 backscatter
(β) + 2 extinction (α) High Spectral Resolution Lidar (HSRL-2).
HSRL-2 measures particle backscatter coefficients at 355, 532, and 1064 nm,
and particle extinction coefficients at 355 and 532 nm. The instrument has
been developed by the NASA Langley Research Center. The instrument was
operated during Phase 1 of the Department of Energy (DOE) Two-Column Aerosol
Project (TCAP) in July 2012. We observed pollution outflow from the
northeastern coast of the US out over the western Atlantic Ocean. Lidar
ratios were 50–60 sr at 355 nm and 60–70 sr at 532 nm.
Extinction-related Ångström exponents were on average 1.2–1.7,
indicating comparably small particles. Our novel automated, unsupervised data
inversion algorithm retrieved particle effective radii of approximately
0.2 μm, which is in agreement with the large Ångström
exponents. We find good agreement with particle size parameters obtained from
coincident in situ measurements carried out with the DOE Gulfstream-1
aircraft. |
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