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Atmosphere 2017, 8(1), 17; doi:10.3390/atmos8010017

Inhomogeneous Radiative Forcing of NF3

1
Jiangsu Climate Center, Nanjing 210009, China
2
Laboratory for Climate Studies, National Climate Center, China Meteorological Administration, Beijing 100081, China
3
Shanghai Public Meteorological Service Centre, Shanghai 200030, China
*
Author to whom correspondence should be addressed.
Academic Editor: Robert W. Talbot
Received: 6 December 2016 / Revised: 10 January 2017 / Accepted: 12 January 2017 / Published: 18 January 2017
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Abstract

Nitrogen trifluoride (NF3) has the potential to make a growing contribution to the Earth’s radiative budget. In this study, the global mean radiative efficiency of NF3 is calculated as 0.188 W·m−2·ppb−1 by line-by-line method. Global warming potentials of 14,700 for 100 years and global temperature potentials of 16,600 for 100 years are calculated. At the same time, inhomogeneous instantaneous radiative forcing of NF3 at the top of the atmosphere and its relationship to other atmospheric and surface variables are studied. A total of 42 atmospheric profiles are used. The results show NF3 instantaneous radiative efficiency range from 0.07 W·m−2·ppb−1 to 0.50 W·m−2·ppb−1 in clear sky conditions. The mean value is 0.25 W·m−2·ppb−1. In clear sky conditions, the correlation coefficient between surface temperature and NF3 instantaneous radiative forcing is 0.94 and the partial correlation coefficient is −0.88 between integrated water content and NF3 instantaneous radiative forcing. A regression model is constructed for NF3 instantaneous radiative forcing based on surface temperature and integrated water content. The average value of the relative error is 6.17% based on LBLRTM (Line-by-Line Radiative Transfer Model) results. The correlation coefficient is 0.985 between cloud radiative forcing and the difference of NF3 instantaneous radiative forcing between clear sky and all cloudy sky conditions. A regression model is constructed for NF3 instantaneous radiative forcing in all cloudy sky. The average relative error is 5.9% based on LBLRTM results. View Full-Text
Keywords: NF3; radiative forcing; inhomogeneous; regression mode NF3; radiative forcing; inhomogeneous; regression mode
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Lu, P.; Zhang, H.; Wu, J. Inhomogeneous Radiative Forcing of NF3. Atmosphere 2017, 8, 17.

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