Improved Temperature‐Dependent Ice Refractive Index Compilation in the Far‐Infrared Spectrum
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 se...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-07-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2024GL110176 |
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| _version_ | 1849725642893950976 |
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| author | Siheng Wang Tong Ren Ping Yang Masanori Saito Helen E. Brindley |
| author_facet | Siheng Wang Tong Ren Ping Yang Masanori Saito Helen E. Brindley |
| author_sort | Siheng Wang |
| collection | DOAJ |
| description | 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 data set will improve downstream light‐scattering applications for upcoming far‐IR satellite missions and allow robust modeling of outgoing longwave radiation under ice cloud conditions. |
| format | Article |
| id | doaj-art-89c3498f851141bd8dda3e956b2f970c |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-89c3498f851141bd8dda3e956b2f970c2025-08-20T03:10:25ZengWileyGeophysical Research Letters0094-82761944-80072024-07-015114n/an/a10.1029/2024GL110176Improved Temperature‐Dependent Ice Refractive Index Compilation in the Far‐Infrared SpectrumSiheng Wang0Tong Ren1Ping Yang2Masanori Saito3Helen E. Brindley4Department of Atmospheric Sciences Texas A&M University College Station TX USADepartment of Atmospheric Sciences Texas A&M University College Station TX USADepartment of Atmospheric Sciences Texas A&M University College Station TX USADepartment of Atmospheric Science University of Wyoming Laramie WY USADepartment of Physics National Centre for Earth Observation Imperial College London Kensington UKAbstract 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 data set will improve downstream light‐scattering applications for upcoming far‐IR satellite missions and allow robust modeling of outgoing longwave radiation under ice cloud conditions.https://doi.org/10.1029/2024GL110176 |
| spellingShingle | Siheng Wang Tong Ren Ping Yang Masanori Saito Helen E. Brindley Improved Temperature‐Dependent Ice Refractive Index Compilation in the Far‐Infrared Spectrum Geophysical Research Letters |
| title | Improved Temperature‐Dependent Ice Refractive Index Compilation in the Far‐Infrared Spectrum |
| title_full | Improved Temperature‐Dependent Ice Refractive Index Compilation in the Far‐Infrared Spectrum |
| title_fullStr | Improved Temperature‐Dependent Ice Refractive Index Compilation in the Far‐Infrared Spectrum |
| title_full_unstemmed | Improved Temperature‐Dependent Ice Refractive Index Compilation in the Far‐Infrared Spectrum |
| title_short | Improved Temperature‐Dependent Ice Refractive Index Compilation in the Far‐Infrared Spectrum |
| title_sort | improved temperature dependent ice refractive index compilation in the far infrared spectrum |
| url | https://doi.org/10.1029/2024GL110176 |
| work_keys_str_mv | AT sihengwang improvedtemperaturedependenticerefractiveindexcompilationinthefarinfraredspectrum AT tongren improvedtemperaturedependenticerefractiveindexcompilationinthefarinfraredspectrum AT pingyang improvedtemperaturedependenticerefractiveindexcompilationinthefarinfraredspectrum AT masanorisaito improvedtemperaturedependenticerefractiveindexcompilationinthefarinfraredspectrum AT helenebrindley improvedtemperaturedependenticerefractiveindexcompilationinthefarinfraredspectrum |