@article{Ren:2025:10.1029/2025GL116735,
author = {Ren, T and Yang, P and Brindley, HE and L'Ecuyer, TS and Maestri, T},
doi = {10.1029/2025GL116735},
journal = {Geophysical Research Letters},
title = {Temperature-dependent optical properties of ice crystals in the far-infrared regime},
url = {http://dx.doi.org/10.1029/2025GL116735},
volume = {52},
year = {2025}
}

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TY  - JOUR
AB  - A database of temperature-dependent hexagonal ice aggregate optical properties in the far-infrared (FIR) spectrum is developed to support FIR missions, particularly the current Polar Radiant Energy in the Far InfraRed Experiment and the upcoming Far-infrared-Outgoing-Radiation Understanding and Monitoring. Based on this data set, simulations of the brightness temperatures (BTs) in the 100–667 cm−1 FIR region are conducted for an anvil-like ice cloud in a tropical atmosphere. The results show nonnegligible impact of ice cloud temperature on simulated BTs, which can be as large as 3 K due to the difference between fixed 160 or 270 K cloud temperature and the benchmark counterpart, varying in accordance with the ambient temperature profile for a cloud residing between 249.6 and 199.6 K. To enhance the accuracy of FIR radiative transfer modeling, it is recommended to incorporate temperature-dependent optical properties of ice clouds.
AU  - Ren,T
AU  - Yang,P
AU  - Brindley,HE
AU  - L'Ecuyer,TS
AU  - Maestri,T
DO  - 10.1029/2025GL116735
PY  - 2025///
SN  - 0094-8276
TI  - Temperature-dependent optical properties of ice crystals in the far-infrared regime
T2  - Geophysical Research Letters
UR  - http://dx.doi.org/10.1029/2025GL116735
UR  - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL116735
VL  - 52
ER  - 

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