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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 14 — May. 10, 2011
  • pp: 2069–2079

Vertical profiles of microphysical particle properties derived from inversion with two-dimensional regularization of multiwavelength Raman lidar data: experiment

Detlef Müller, Alexei Kolgotin, Ina Mattis, Andreas Petzold, and Andreas Stohl  »View Author Affiliations


Applied Optics, Vol. 50, Issue 14, pp. 2069-2079 (2011)
http://dx.doi.org/10.1364/AO.50.002069


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Abstract

Inversion with two-dimensional (2-D) regularization is a new methodology that can be used for the retrieval of profiles of microphysical properties, e.g., effective radius and complex refractive index of atmospheric particles from complete (or sections) of profiles of optical particle properties. The optical profiles are acquired with multiwavelength Raman lidar. Previous simulations with synthetic data have shown advantages in terms of retrieval accuracy compared to our so-called classical one-dimensional (1-D) regularization, which is a method mostly used in the European Aerosol Research Lidar Network (EARLINET). The 1-D regularization suffers from flaws such as retrieval accuracy, speed, and ability for error analysis. In this contribution, we test for the first time the performance of the new 2-D regularization algorithm on the basis of experimental data. We measured with lidar an aged biomass-burning plume over West/Central Europe. For comparison, we use particle in situ data taken in the smoke plume during research aircraft flights upwind of the lidar. We find good agreement for effective radius and volume, surface-area, and number concentrations. The retrieved complex refractive index on average is lower than what we find from the in situ observations. Accordingly, the single-scattering albedo that we obtain from the inversion is higher than what we obtain from the aircraft data. In view of the difficult measurement situation, i.e., the large spatial and temporal distances between aircraft and lidar measurements, this test of our new inversion methodology is satisfactory.

© 2011 Optical Society of America

OCIS Codes
(010.0010) Atmospheric and oceanic optics : Atmospheric and oceanic optics
(010.1100) Atmospheric and oceanic optics : Aerosol detection
(010.1110) Atmospheric and oceanic optics : Aerosols
(010.3640) Atmospheric and oceanic optics : Lidar
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: August 23, 2010
Revised Manuscript: February 2, 2011
Manuscript Accepted: February 11, 2011
Published: May 9, 2011

Virtual Issues
Vol. 6, Iss. 6 Virtual Journal for Biomedical Optics

Citation
Detlef Müller, Alexei Kolgotin, Ina Mattis, Andreas Petzold, and Andreas Stohl, "Vertical profiles of microphysical particle properties derived from inversion with two-dimensional regularization of multiwavelength Raman lidar data: experiment," Appl. Opt. 50, 2069-2079 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-14-2069

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