Optical properties and shape-dependent retrievals  of the imaginary part of the refractive  index of freshly emitted Saharan dust

Yus-Díez, Jesús; Escribano, Jeronimo; Pandolfi, Marco; Alastuey, Andrés; González-Flórez, Cristina; Gonzalez-Romero, Adolfo; Gonçalves Ageitos, María; Ivančič, Matic; Klose, Martina; Kandler, Konrad; Obiso, Vincenzo; Panta, Agnesh; Reche, Cristina; Rigler, Martin; Querol, Xavier; Perez García-Pando, Carlos

doi:10.5194/acp-26-14531-2026

Articles | Volume 26, issue 19

https://doi.org/10.5194/acp-26-14531-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-26-14531-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 19

Research article

|

14 Oct 2026

Research article |

| 14 Oct 2026

Optical properties and shape-dependent retrievals of the imaginary part of the refractive index of freshly emitted Saharan dust

Jesús Yus-Díez, Jeronimo Escribano, Marco Pandolfi, Andrés Alastuey, Cristina González-Flórez, Adolfo Gonzalez-Romero, María Gonçalves Ageitos, Matic Ivančič, Martina Klose, Konrad Kandler, Vincenzo Obiso, Agnesh Panta, Cristina Reche, Martin Rigler, Xavier Querol, and Carlos Perez García-Pando

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Jul 2025	1,059	259	80	1,398
Aug 2025	702	43	8	753
Sep 2025	2,865	44	14	2,923
Oct 2025	580	40	10	630
Nov 2025	526	55	25	606
Dec 2025	425	85	35	545
Jan 2026	627	135	40	802
Feb 2026	529	103	10	642
Mar 2026	386	139	23	548
Apr 2026	115	34	6	155
May 2026	102	25	5	132
Jun 2026	30	11	2	43
Jul 2026	20	21	5	46
Aug 2026	17	13	21	51
Sep 2026	58	51	20	129
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Nov 2026	24	13	4	41

Cumulative views and downloads (calculated since 03 Jul 2025)

Month	HTML	PDF	XML	Total
Jul 2025	1,059	259	80	1,398
Aug 2025	702	43	8	753
Sep 2025	2,865	44	14	2,923
Oct 2025	580	40	10	630
Nov 2025	526	55	25	606
Dec 2025	425	85	35	545
Jan 2026	627	135	40	802
Feb 2026	529	103	10	642
Mar 2026	386	139	23	548
Apr 2026	115	34	6	155
May 2026	102	25	5	132
Jun 2026	30	11	2	43
Jul 2026	20	21	5	46
Aug 2026	17	13	21	51
Sep 2026	58	51	20	129
Oct 2026	664	306	145	1,115
Nov 2026	24	13	4	41

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Short summary

Here we present measurements of dust optical properties during active emissions at a source region in the Moroccan Sahara. We present results on its single scattering albedo, absorption and scattering wavelength dependence and mass efficiency. Furthermore, we have performed imaginary refractive index (k) retrieval under varying assumptions of the refractive index real part, and particle sphericity. We also provide a comparison between the k retrievals and estimations on dust k from AERONET.