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Laboratory study of mineral dust optical properties extending in the far-infrared spectral range — arXiv:2610.41907

Source: arXiv (en)
Original: https://arxiv.org/abs/2610.41907
License (as archived): CC0-1.0
Archived: 2026-11-02T05:10:31.773Z
SHA-256 of the archived text: 2102f00a1f9a5baeb344703d3e21754bb9a8118f313041f3836342e023272dd8
Stable URL of this page: https://metraipolis.com/documento/dc_2bee8ebf046e

How to cite

Laboratory study of mineral dust optical properties extending in the far-infrared spectral range — arXiv:2610.41907 — arXiv (en), https://arxiv.org/abs/2610.41907 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_2bee8ebf046e (Metraipolis archive dc_2bee8ebf046e, sha256 2102f00a1f9a5baeb344703d3e21754bb9a8118f313041f3836342e023272dd8)

BibTeX

@misc{dc2bee8ebf046e,
  title = {Laboratory study of mineral dust optical properties extending in the far-infrared spectral range — arXiv:2610.41907},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2610.41907},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_2bee8ebf046e; sha256 2102f00a1f9a5baeb344703d3e21754bb9a8118f313041f3836342e023272dd8},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2610.41907. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Mineral dust is one of the most abundant atmospheric aerosol types and remains a major source of uncertainty in estimates of aerosol radiative forcing. This uncertainty is particularly important in the far-infrared (FIR) spectral region, where the optical properties of natural mineral dust, especially its complex refractive index (CRI), remain poorly known. Previous measurements have commonly relied on pellet- or film-based methods, which can alter particle size, shape, and vibrational modes, inducing errors in the CRI determination. In this study, we present a laboratory investigation on six natural mineral dust samples with contrasting compositions and originated from major dust source regions worldwide, including Arizona, Atacama, China, Niger, Saudi Arabia, and Tunisia. Suspended dust aerosols were generated under controlled dry conditions and characterized using extinction spectroscopy from the infrared 250 to 4000 cm^-1 (2.5 to 40 micrometers) to the Ultraviolet-Visible (UV-Vis) from 10000 to 40000 cm^-1 (0.25 to 1 micrometer) spectral range, combined with particle size distribution measurements. The real and imaginary parts of the CRI were retrieved for all six samples, revealing a significant absorption and pronounced spectral variability in the FIR. These variations should be accounted for in remote sensing and dust radiative effect studies.

Tema degli esploratori: terra, clima ed energia (elenco arXiv physics.ao-ph, nuovi lavori del giorno).
Categorie arXiv: Atmospheric and Oceanic Physics (physics.ao-ph).
Pagina del lavoro: https://arxiv.org/abs/2610.41907 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-11-02T04:54:13.236Z dalla pagina https://arxiv.org/list/physics.ao-ph/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).