A path towards uncertainty assignment in an operational cloud-phase  algorithm from ARM vertically pointing active sensors

Riihimaki, Laura D.; Comstock, Jennifer M.; Anderson, Kevin K.; Holmes, Aimee; Luke, Edward

doi:10.5194/ascmo-2-49-2016

Articles | Volume 2, issue 1

https://doi.org/10.5194/ascmo-2-49-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/ascmo-2-49-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 2, issue 1

10 Jun 2016

| 10 Jun 2016

A path towards uncertainty assignment in an operational cloud-phase algorithm from ARM vertically pointing active sensors

Laura D. Riihimaki, Jennifer M. Comstock, Kevin K. Anderson, Aimee Holmes, and Edward Luke

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Jun 2016	35	9	4	48
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Oct 2016	5	4	2	11
Nov 2016	4	3	1	8
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Jan 2025	11	6	1	18
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May 2025	11	9	2	22
Jun 2025	30	8	0	38
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Aug 2025	35	9	2	46
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Cumulative views and downloads (calculated since 10 Jun 2016)

Month	HTML	PDF	XML	Total
Jun 2016	35	9	4	48
Jul 2016	14	2	1	17
Aug 2016	24	8	3	35
Sep 2016	12	4	1	17
Oct 2016	5	4	2	11
Nov 2016	4	3	1	8
Dec 2016	3	3	0	6
Jan 2017	5	1	0	6
Feb 2017	6	5	0	11
Mar 2017	10	3	0	13
Apr 2017	8	3	0	11
May 2017	12	6	0	18
Jun 2017	15	8	4	27
Jul 2017	2	6	0	8
Aug 2017	10	3	0	13
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Oct 2017	5	4	0	9
Nov 2017	8	9	1	18
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Feb 2018	7	4	1	12
Mar 2018	11	3	0	14
Apr 2018	5	3	1	9
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Jun 2018	6	4	1	11
Jul 2018	7	6	1	14
Aug 2018	6	9	0	15
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Jul 2025	21	12	2	35
Aug 2025	35	9	2	46
Sep 2025	36	15	3	54
Oct 2025	30	15	2	47
Nov 2025	38	13	3	54

Latest update: 28 Nov 2025

Short summary

Between atmospheric temperatures of 0 and −38 °C, clouds contain ice crystals, super-cooled liquid droplets, or a mixture of both, impacting how they influence the atmospheric energy budget and challenging our ability to simulate climate change. Better cloud-phase measurements are needed to improve simulations. We demonstrate how a Bayesian method to identify cloud phase can improve on currently used methods by including information from multiple measurements and probability estimates.