A cloud detection algorithm using the downwelling infrared radiance measured by an infrared pyrometer of the ground-based microwave radiometer

Ahn, M.-H.; Han, D.; Won, H. Y.; Morris, V.

doi:https://doi.org/10.5194/amt-8-553-2015

Articles | Volume 8, issue 2

https://doi.org/10.5194/amt-8-553-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-8-553-2015

© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 8, issue 2

Research article

|

03 Feb 2015

Research article |

| 03 Feb 2015

A cloud detection algorithm using the downwelling infrared radiance measured by an infrared pyrometer of the ground-based microwave radiometer

M.-H. Ahn, D. Han, H. Y. Won, and V. Morris

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Final revised paper (published on 03 Feb 2015)
Preprint (discussion started on 16 Sep 2014)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

RC C3141: 'Referee Comment (RC): AMTD-7-9413-2014', Anonymous Referee #2, 12 Oct 2014
- AC C3679: 'Reply to Comments of the Referee #2', MH AHN, 11 Nov 2014
RC C4200: 'Comments on “A cloud detection algorithm using the downwelling infrared radiance measured by an infrared pyrometer of the ground-based microwave radiometer”', Anonymous Referee #3, 13 Dec 2014

Short summary

A new cloud detection algorithm using the downwelling IR radiation has been developed by utilizing the spectral and temporal characteristics of clouds which significantly increase the measured radiance and temporal variability. Algorithm performance is evaluated by collocated ceilometer data showing the proportion of correct and probability of detection values of 88.3% and 90.8%, respectively. The algorithm is found to be insensitive to the presence of the inversion layer.