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Title: Sensitivity of CAM5-simulated Arctic clouds and radiation to ice nucleation parameterization

Journal Article · · Journal of Climate
 [1];  [2];  [1];  [1]
  1. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Sensitivity of Arctic clouds and radiation in the Community Atmospheric Model, version 5, to the ice nucleation process is examined by testing a new physically based ice nucleation scheme that links the variation of ice nuclei (IN) number concentration to aerosol properties. The default scheme parameterizes the IN concentration simply as a function of ice supersaturation. The new scheme leads to a significant reduction in simulated IN concentration at all latitudes while changes in cloud amounts and properties are mainly seen at high- and midlatitude storm tracks. In the Arctic, there is a considerable increase in midlevel clouds and a decrease in low-level clouds, which result from the complex interaction among the cloud macrophysics, microphysics, and large-scale environment. The smaller IN concentrations result in an increase in liquid water path and a decrease in ice water path caused by the slowdown of the Bergeron–Findeisen process in mixed-phase clouds. Overall, there is an increase in the optical depth of Arctic clouds, which leads to a stronger cloud radiative forcing (net cooling) at the top of the atmosphere. The comparison with satellite data shows that the new scheme slightly improves low-level cloud simulations over most of the Arctic but produces too many midlevel clouds. Considerable improvements are seen in the simulated low-level clouds and their properties when compared with Arctic ground-based measurements. As a result, issues with the observations and the model–observation comparison in the Arctic region are discussed.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-07NA27344
OSTI ID:
1266669
Report Number(s):
LLNL-JRNL-566175
Journal Information:
Journal of Climate, Vol. 26, Issue 16; ISSN 0894-8755
Publisher:
American Meteorological SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 73 works
Citation information provided by
Web of Science

References (57)

Measurements of natural deposition and condensation-freezing ice nuclei with a continuous flow chamber journal January 1985
The Earth Radiation Budget Experiment (ERBE) journal November 1984
Arctic synoptic regimes: Comparing domain-wide Arctic cloud observations with CAM4 and CAM5 during similar dynamics: CAM4 AND CAM5 ARCTIC CLOUD EVALUATION journal August 2012
Ice forming nuclei in the high Arctic journal January 1996
COSP: Satellite simulation software for model assessment journal August 2011
Parameterizing ice nucleation rates using contact angle and activation energy derived from laboratory data journal January 2008
The GCM-Oriented CALIPSO Cloud Product (CALIPSO-GOCCP) journal January 2010
Objective Determination of Cloud Heights and Radar Reflectivities Using a Combination of Active Remote Sensors at the ARM CART Sites journal May 2000
Predicting global atmospheric ice nuclei distributions and their impacts on climate journal June 2010
The ice nucleating ability of pollen journal July 2001
The Microbase Value-Added Product: A Baseline Retrieval of Cloud Microphysical Properties report May 2011
An Overview of the Results of the Atmospheric Model Intercomparison Project (AMIP I) journal January 1999
Global simulations of ice nucleation and ice supersaturation with an improved cloud scheme in the Community Atmosphere Model journal January 2010
Climate impacts of ice nucleation: ICE NUCLEATION journal October 2012
Ice nucleation on soot particles journal February 2001
A parameterization of cirrus cloud formation: Heterogeneous freezing journal January 2003
Inter-annual to multi-decadal Arctic sea ice extent trends in a warming world: ARCTIC SEA ICE TRENDS IN A WARMING WORLD journal August 2011
The Boundary Layer Response to Recent Arctic Sea Ice Loss and Implications for High-Latitude Climate Feedbacks journal January 2011
Exposing Global Cloud Biases in the Community Atmosphere Model (CAM) Using Satellite Observations and Their Corresponding Instrument Simulators journal August 2012
The Seasonal Cycle of Low Stratiform Clouds journal August 1993
Contact Versus Immersion Freezing of Freely Suspended Droplets by Bacterial Ice Nuclei journal November 1983
Inclusion of Ice Microphysics in the NCAR Community Atmospheric Model Version 3 (CAM3) journal September 2007
Evaluation of a new mixed-phase cloud microphysics parameterization with CAM3 single-column model and M-PACE observations: CLOUD MICROPHYSICS PARAMETERIZATION journal December 2007
Testing cloud microphysics parameterizations in NCAR CAM5 with ISDAC and M-PACE observations journal January 2011
Sensitivity studies of dust ice nuclei effect on cirrus clouds with the Community Atmosphere Model CAM5 journal January 2012
Toward a minimal representation of aerosols in climate models: description and evaluation in the Community Atmosphere Model CAM5 journal January 2012
Toward Optimal Closure of the Earth's Top-of-Atmosphere Radiation Budget journal February 2009
New Primary Ice-Nucleation Parameterizations in an Explicit Cloud Model journal July 1992
A New Two-Moment Bulk Stratiform Cloud Microphysics Scheme in the Community Atmosphere Model, Version 3 (CAM3). Part I: Description and Numerical Tests journal August 2008
Resilience of persistent Arctic mixed-phase clouds journal December 2011
The Impact of Convection on ENSO: From a Delayed Oscillator to a Series of Events journal November 2008
A Particle-Surface-Area-Based Parameterization of Immersion Freezing on Desert Dust Particles journal October 2012
Anvil glaciation in a deep cumulus updraught over Florida simulated with the Explicit Microphysics Model. I: Impact of various nucleation processes
  • Phillips, Vaughan T. J.; Andronache, Constantin; Sherwood, Steven C.
  • Quarterly Journal of the Royal Meteorological Society, Vol. 131, Issue 609 https://doi.org/10.1256/qj.04.85
journal July 2005
An Empirical Parameterization of Heterogeneous Ice Nucleation for Multiple Chemical Species of Aerosol journal September 2008
Reconciling Simulated and Observed Views of Clouds: MODIS, ISCCP, and the Limits of Instrument Simulators journal July 2012
The MODIS cloud products: algorithms and examples from terra journal February 2003
Can Ice-Nucleating Aerosols Affect Arctic Seasonal Climate? journal April 2007
Evaluation of cloud fraction and its radiative effect simulated by IPCC AR4 global models against ARM surface observations journal January 2012
A Comparison of the CCM3 Model Climate Using Diagnosed and Predicted Condensate Parameterizations journal July 1998
Advances in Understanding Clouds from ISCCP journal November 1999
Clouds at Arctic Atmospheric Observatories. Part II: Thermodynamic Phase Characteristics journal March 2011
Arctic Cloud Microphysics Retrievals from Surface-Based Remote Sensors at SHEBA journal October 2005
Arctic Mixed-Phase Cloud Properties Derived from Surface-Based Sensors at SHEBA journal February 2006
Arctic Mixed-Phase Cloud Properties from AERI Lidar Observations: Algorithm and Results from SHEBA journal April 2005
Retrieving Liquid Wat0er Path and Precipitable Water Vapor From the Atmospheric Radiation Measurement (ARM) Microwave Radiometers journal November 2007
Simulations of 20th and 21st century Arctic cloud amount in the global climate models assessed in the IPCC AR4 journal October 2008
The Mixed-Phase Arctic Cloud Experiment journal February 2007
Comparison of Arctic Climate Simulations by Uncoupled and Coupled Global Models journal June 2002
Clouds and the Earth's Radiant Energy System (CERES): An Earth Observing System Experiment journal May 1996
Amplified Arctic climate change: What does surface albedo feedback have to do with it? journal January 2006
Simulations of Arctic mixed-phase clouds in forecasts with CAM3 and AM2 for M-PACE journal January 2008
CLOUDS AND MORE: ARM Climate Modeling Best Estimate Data: A New Data Product for Climate Studies journal January 2010
Mineral Dust Entrainment and Deposition (DEAD) model: Description and 1990s dust climatology journal January 2003
A contribution by ice nuclei to global warming
  • Zeng, Xiping; Tao, Wei-Kuo; Zhang, Minghua
  • Quarterly Journal of the Royal Meteorological Society, Vol. 135, Issue 643 https://doi.org/10.1002/qj.449
journal July 2009
Sensitivity of climate simulations to the parameterization of cumulus convection in the Canadian climate centre general circulation model journal September 1995
Low-Cloud Fraction, Lower-Tropospheric Stability, and Large-Scale Divergence journal September 2009
Toward understanding of differences in current cloud retrievals of ARM ground-based measurements: UNDERSTANDING CLOUD RETRIEVAL DIFFERENCE journal May 2012

Cited By (11)

Temporal and Spatial Matching in Human-Earth System Model Coupling journal June 2018
Quantify contribution of aerosol errors to cloud fraction biases in CMIP5 Atmospheric Model Intercomparison Project simulations journal March 2018
Three‐Year Continuous Observation of Pure and Polluted Dust Aerosols Over Northwest China Using the Ground‐Based Lidar and Sun Photometer Data journal January 2019
Estimation of the Dust Aerosol Shortwave Direct Forcing Over Land Based on an Equi‐albedo Method From Satellite Measurements journal August 2019
Nonequilibrium Fractionation During Ice Cloud Formation in iCAM5: Evaluating the Common Parameterization of Supersaturation as a Linear Function of Temperature journal November 2019
Role of updraft velocity in temporal variability of global cloud hydrometeor number journal May 2016
Different contact angle distributions for heterogeneous ice nucleation in the Community Atmospheric Model version 5 journal January 2014
Aerosol vertical distribution and optical properties over China from long-term satellite and ground-based remote sensing journal January 2017
Spatial distribution of aerosol microphysical and optical properties and direct radiative effect from the China Aerosol Remote Sensing Network journal January 2019
Concentrations, composition, and sources of ice-nucleating particles in the Canadian High Arctic during spring 2016 journal January 2019
Different contact angle distributions for heterogeneous ice nucleation in the community atmospheric model version 5 text January 2014

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