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AMT | Articles | Volume 12, issue 2
Atmos. Meas. Tech., 12, 853–872, 2019
https://doi.org/10.5194/amt-12-853-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
Atmos. Meas. Tech., 12, 853–872, 2019
https://doi.org/10.5194/amt-12-853-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 07 Feb 2019

Research article | 07 Feb 2019

3-D tomographic limb sounder retrieval techniques: irregular grids and Laplacian regularisation

Lukas Krasauskas et al.
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Allen, E., Baglama, J., and Boyd, S.: Numerical approximation of the product of the square root of a matrix with a vector, Linear Algebra and its Applications, 310, 167–181, https://doi.org/10.1016/s0024-3795(00)00068-9, 2000. a
Bai, Y. and Wang, D.: On the Comparison om Trilinear, Cubic Spline, and Fuzzy Interpolation Methods in the High-Accuracy Measurements, IEEE T. Fuzzy Syst., 18, 1016–1022, https://doi.org/10.1109/TFUZZ.2010.2064170, 2010. a
Birner, T.: Fine-scale structure of the extratropical tropopause region, J. Geophys. Res., 111, D04104, https://doi.org/10.1029/2005JD006301, 2006. a, b
Boissonnat, J.-D. and Yvinec, M.: Algorithmic Geometry, Cambridge University Press, New York, NY, USA, 1998. a
Carlotti, M., Dinelli, B. M., Raspollini, P., and Ridolfi, M.: Geo-fit approach to the analysis of limb-scanning satellite measurements, Appl. Opt., 40, 1872–1885, https://doi.org/10.1364/AO.40.001872, 2001. a, b
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Many limb sounder measurements from the same atmospheric region taken at different angles can be combined into a 3-D tomographic image of the atmosphere. Mathematically, this is a complex, computationally expensive, underdetermined problem that needs additional constraints (regularisation). We introduce an improved regularisation method based on physical properties of the atmosphere with a new irregular grid implementation. Simulated data tests show improved results and lower computational cost.
Many limb sounder measurements from the same atmospheric region taken at different angles can be...
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