1. Sassen, K., Wang, Z. & Liu, D. Global distribution of cirrus clouds from cloudsat/cloud-aerosol lidar and infrared pathfinder satellite observations (calipso) measurements. J. Geophys. Res.: Atmospheres 113, doi: 10.1029/2008JD009972 (2008).
2. Myhre, G. et al. Anthropogenic and Natural Radiative Forcing. Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, book section 8, 659–740, www.climatechange2013.org (Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 2013).
3. Zelinka, M. D. & Hartmann, D. L. Climate feedbacks and their implications for poleward energy flux changes in a warming climate. J. Climate 25, 608–624 (2012).
4. Boucher, O. et al. Clouds and Aerosols. Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, book section 7, 571–658, www.climatechange2013.org (Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 2013).
5. Gettelman, A., Liu, X., Barahona, D., Lohmann, U. & Chen, C. Climate impacts of ice nucleation. J. Geophys. Res. 117, doi: 10.1029/2012JD017950 (2012).