How Uncertainty in Field Measurements of Ice Nucleating Particles Influences Modeled Cloud Forcing

AbstractField and laboratory measurements using continuous flow diffusion chambers (CFDCs) have been used to construct parameterizations of the number of ice nucleating particles (INPs) in mixed-phase and completely glaciated clouds in weather and climate models. Because of flow nonidealities, CFDC measurements are subject to systematic low biases. Here, the authors investigate the effects of this undercounting bias on simulated cloud forcing in a global climate model. The authors assess the influence of measurement variability by constructing a stochastic parameterization framework to endogenize measurement uncertainty. The authors find that simulated anthropogenic longwave ice-bearing cloud forcing in a global climate model can vary up to 0.8 W m−2 and can change sign from positive to negative within the experimentally constrained bias range. Considering the variability in the undercounting bias, in a range consistent with recent experiments, leads to a larger negative cloud forcing than that when the v...

[1]  B. Stevens,et al.  Untangling aerosol effects on clouds and precipitation in a buffered system , 2009, Nature.

[2]  Chien Wang,et al.  Uncertainty in counting ice nucleating particles with continuous flow diffusion chambers , 2017 .

[3]  B. Murray,et al.  Ice nucleation by particles immersed in supercooled cloud droplets. , 2012, Chemical Society reviews.

[4]  U. Lohmann,et al.  Ice nucleating particles in the Saharan Air Layer , 2016 .

[5]  Chien Wang,et al.  Distribution and direct radiative forcing of carbonaceous and sulfate aerosols in an interactive size-resolving aerosol-climate model , 2008 .

[6]  Andrew Gettelman,et al.  Advanced Two-Moment Bulk Microphysics for Global Models. Part II: Global Model Solutions and Aerosol–Cloud Interactions* , 2015 .

[7]  S. Kreidenweis,et al.  Biological aerosol particles as a key determinant of ice nuclei populations in a forest ecosystem , 2013 .

[8]  R. Charlson,et al.  Global Indirect Radiative Forcing Caused by Aerosols: IPCC (2007) and Beyond , 2009 .

[9]  Corinna Hoose,et al.  Global modeling of mixed‐phase clouds: The albedo and lifetime effects of aerosols , 2011 .

[10]  S. Xie.  Sensitivity of CAM 5-Simulated Arctic Clouds and Radiation to Ice Nucleation Parameterization , 2015 .

[11]  T. Clauss,et al.  Kaolinite particles as ice nuclei: learning from the use of different kaolinite samples and different coatings , 2014 .

[12]  Johannes Quaas,et al.  Total aerosol effect: radiative forcing or radiative flux perturbation? , 2009 .

[13]  W. Cotton,et al.  New primary ice-nucleation parameterizations in an explicit cloud model , 1992 .

[14]  Thomas Koop,et al.  Review of the vapour pressures of ice and supercooled water for atmospheric applications , 2005 .

[15]  Andrew S. Jones,et al.  Global Indirect Radiative Forcing Caused by Aerosols , 2009 .

[16]  David R. Doelling,et al.  Toward Optimal Closure of the Earth's Top-of-Atmosphere Radiation Budget , 2009 .

[17]  S. Ghan.  Technical Note: Estimating aerosol effects on cloud radiative forcing , 2013 .

[18]  D. Rogers.  Development of a continuous flow thermal gradient diffusion chamber for ice nucleation studies , 1988 .

[19]  Corinna Hoose,et al.  The global influence of dust mineralogical composition on heterogeneous ice nucleation in mixed-phase clouds , 2008 .

[20]  C. Bretherton,et al.  Clouds and Aerosols , 2013 .

[21]  U. Lohmann,et al.  The Zurich Ice Nucleation Chamber (ZINC)-A New Instrument to Investigate Atmospheric Ice Formation , 2008 .

[22]  U. Lohmann,et al.  Ice nuclei properties within a Saharan Dust Event at the Jungfraujoch , 2010 .

[23]  Xiaohong Liu,et al.  Sensitivity of CAM5-Simulated Arctic Clouds and Radiation to Ice Nucleation Parameterization , 2013 .

[24]  Joyce E. Penner,et al.  Ice nucleation parameterization for global models , 2005 .

[25]  I. Tegen,et al.  Seasonal variability of Saharan desert dust and ice nucleating particles over Europe , 2014 .

[26]  J. K. Ayers,et al.  Aerosol impacts on California winter clouds and precipitation during CalWater 2011: local pollution versus long-range transported dust , 2013 .

[27]  B. Luo,et al.  Water activity as the determinant for homogeneous ice nucleation in aqueous solutions , 2000, Nature.

[28]  R. Betts,et al.  Changes in Atmospheric Constituents and in Radiative Forcing. Chapter 2 , 2007 .

[29]  K. Lau,et al.  Detecting trends in tropical rainfall characteristics, 1979–2003 , 2007 .

[30]  M. Petters,et al.  Integrating laboratory and field data to quantify the immersion freezing ice nucleation activity of mineral dust particles , 2014 .

[31]  Chien Wang,et al.  The responses of cloudiness to the direct radiative effect of sulfate and carbonaceous aerosols , 2014 .

[32]  U. Lohmann,et al.  Ice nuclei properties within a Saharan dust event at the Jungfraujoch in the Swiss Alps , 2011 .

[33]  B. Luo,et al.  Water activity as the determinant for homogeneous ice nucleation in aqueous solutions , 2000, Nature.

[34]  D. M. Murphy,et al.  Measurements of the concentration and composition of nuclei for cirrus formation , 2003, Proceedings of the National Academy of Sciences of the United States of America.

[35]  U. Lohmann,et al.  Inadvertent climate modification due to anthropogenic lead , 2009 .

[36]  Ivy Tan,et al.  Sensitivity Study on the Influence of Cloud Microphysical Parameters on Mixed-Phase Cloud Thermodynamic Phase Partitioning in CAM5 , 2016 .

[37]  Sonia M. Kreidenweis,et al.  African dust aerosols as atmospheric ice nuclei , 2003 .

[38]  U. Lohmann,et al.  The SPectrometer for Ice Nuclei (SPIN): An instrument to investigate ice nucleation , 2014 .

[39]  M. D. Petters,et al.  Predicting global atmospheric ice nuclei distributions and their impacts on climate , 2010, Proceedings of the National Academy of Sciences.

[40]  Andrew Gettelman,et al.  Climate impacts of ice nucleation , 2012 .