Improved temperature-dependent ice refractive index compilation in the far-infrared spectrum

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Geophysical Research Letters - 2024 - Wang - Improved Temperature‐Dependent Ice Refractive Index Compilation in the.pdf (371.07 KB)

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Author(s)

Wang, Siheng

Ren, Tong

Yang, Ping

Saito, Masanori

Brindley, Helen E

Type

Journal Article

Abstract

A new ice refractive index compilation is reported for a broad spectrum ranging from 0.0443 to 106 𝜇m, focusing on the pronounced temperature-dependence of ice optical properties in the far-infrared (far-IR) segment (15-100 µm). A sensitivity study assuming spherical particles shows that selecting ice refractive indices at 12 temperatures and 215 wavelengths in the far-IR region gives sufficient accuracy in interpolated refractive indices for developing a new ice crystal optical property database. Furthermore, we demonstrate the differences between the bulk single-scattering properties computed for hexagonal ice particles with this new compilation compared to a previous iteration at three far-IR wavelengths where substantial differences are noticed between the two ice refractive index compilations. We suggest that our new ice refractive index dataset will improve downstream light-scattering applications for upcoming far-IR satellite missions and allow robust modeling of outgoing longwave radiation (OLR) under ice cloud conditions.

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Date Issued

2024-07-28

Date Acceptance

2024-06-24

Citation

Geophysical Research Letters, 2024, 51 (14)

URI

http://hdl.handle.net/10044/1/112991

URL

https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL110176

DOI

https://www.dx.doi.org/10.1029/2024GL110176

ISSN

0094-8276

Publisher

Wiley Open Access

Journal / Book Title

Geophysical Research Letters

Volume

51

Issue

14

Copyright Statement

© 2024. The Author(s).

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

License URL

https://creativecommons.org/licenses/by/4.0/

Identifier

https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2024GL110176

Publication Status

Published

Article Number

e2024GL110176

Date Publish Online

2024-07-12