Imperial College London
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Professor Helen Brindley

Faculty of Natural Sciences, Department of Physics

Professor in Earth Observation
 
 
 
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Contact

 

+44 (0)20 7594 7673h.brindley

 
 
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Location

 

717Huxley BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@unpublished{Bantges:2020:10.5194/acp-2019-1181,
author = {Bantges, R and Brindley, H and Russell, J and Murray, J and Last, A and fox, C and fox, S and harlow, C and o'shea, S and bower, K and baum, B and yang, P and oetjen, H and Pickering, J},
doi = {10.5194/acp-2019-1181},
publisher = {Atmospheric Chemistry and Physics. Discussion. Copernicus Publications},
title = {A test of the ability of current bulk optical models to represent the radiative properties of cirrus cloud across the mid-and far-infrared},
url = {http://dx.doi.org/10.5194/acp-2019-1181},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - UNPB
AB  - Measurements of mid- to far-infrared nadir radiances obtained from the UK Facility for Airborne Atmospheric Measurements (FAAM) BAe-146 aircraft during the Cirrus Coupled Cloud-Radiation Experiment (CIRCCREX) are used to assess the performance of various ice cloud bulk optical (single-scattering) property models. Through use of a minimisation approach, we find that the simulations can reproduce the observed spectra in the mid-infrared to within measurement uncertainty but are unable to simultaneously match the observations over the far-infrared frequency range. When both mid and far-infrared observations are used to minimise residuals, first order estimates of the flux differences between the best performing simulations and observations indicate a strong compensation effect between the mid and far infrared such that the absolute broadband difference is < 0.7 W m−2. However, simply matching the spectra using the mid-infrared observations in isolation leads to substantially larger discrepancies, with absolute differences reaching ~ 1.8 W m−2. These results highlight the benefit of far infrared observations for better constraining retrievals of cirrus cloud properties and their radiative impact, and provide guidance for the development of more realistic ice cloud optical models.
AU  - Bantges,R
AU  - Brindley,H
AU  - Russell,J
AU  - Murray,J
AU  - Last,A
AU  - fox,C
AU  - fox,S
AU  - harlow,C
AU  - o'shea,S
AU  - bower,K
AU  - baum,B
AU  - yang,P
AU  - oetjen,H
AU  - Pickering,J
DO  - 10.5194/acp-2019-1181
PB  - Atmospheric Chemistry and Physics. Discussion. Copernicus Publications
PY  - 2020///
TI  - A test of the ability of current bulk optical models to represent the radiative properties of cirrus cloud across the mid-and far-infrared
UR  - http://dx.doi.org/10.5194/acp-2019-1181
UR  - https://doi.org/10.5194/acp-2019-1181
UR  - http://hdl.handle.net/10044/1/88930
ER  -
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