A036
Boundary Layer Clouds and Climate Change
Session ID#: 76832
Session Description:
Boundary layer clouds are a key element in Earth's climate system. Their response and feedback to climate change is a leading source of uncertainty in projecting Earth's radiation budget and climate. This session provides a platform for observational, theoretical, and modeling work on warm and mixed-phase boundary layer clouds from the microscale to the global scale. Topics include mechanisms by which boundary layer clouds interact with climate in the course of trends and variations in atmospheric circulation, temperature, humidity, radiation, and composition. Interactions between natural and anthropogenic aerosol and clouds, mechanisms that link clouds with biological activity, vegetation, and surface processes, and consequences for radiation, precipitation, and climate are of equal interest.
Index Terms:
0320 Cloud physics and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
3307 Boundary layer processes [ATMOSPHERIC PROCESSES]
3322 Land/atmosphere interactions [ATMOSPHERIC PROCESSES]
3339 Ocean/atmosphere interactions [ATMOSPHERIC PROCESSES]
Primary Convener: Hailong Wang, Pacific Northwest National Laboratory, Richland, WA, United States
Conveners: Armin Sorooshian, University of Arizona, Department of Chemical and Environmental Engineering, Tucson, AZ, United States, Jan Kazil, NOAA/CIRES, Boulder, United States and David Painemal, Science Systems and Applications, Inc. Hampton, Hampton, VA, United States
Primary Liaison: Hailong Wang, Pacific Northwest National Laboratory, Richland, WA, United States
A New Stochastic Model for the Boundary Layer Clouds and Stratocumulus Phase Transition Regimes: Open Cells, Closed Cells, and Convective Rolls (488414)
Boualem Khouider, University of Victoria, Mathematics and Statistics, Victoria, BC, Canada and Alexander Bihlo, Memorial University, Mathematics and Statistics, St John's, NF, Canada
Statistical Methods to Quantify and Visualise the Complex Behaviour of Clouds in the Climate System (498374)
Rachel Sansom1, Ken S Carslaw1, Jill S Johnson2, Lindsay A. Lee3 and John Paul Gosling4, (1)University of Leeds, Leeds, LS2, United Kingdom, (2)University of Leeds, Institute for Climate and Atmospheric Science, School of Earth and Environment, Leeds, United Kingdom, (3)School of Earth and Environment, University of Leeds, Leeds, United Kingdom, (4)University of Leeds, Leeds, United Kingdom
Mechanisms of Changes in Marine Fog in CMIP5 Multi-Model Simulations (498492)
Hideaki Kawai1, Tsuyoshi Koshiro1, Hirokazu Endo2 and Osamu Arakawa3, (1)Meteorological Research Institute, Ibaraki, Japan, (2)Meteorological Research Institute, Climate Reserach Department, Ibaraki, Japan, (3)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
Investigation of Aerosol-Cloud Interactions under Different Absorptive Aerosol Regimes using ARM SGP Ground-Based Measurements (503715)
Xiaojian Zheng1, Baike Xi2, Xiquan Dong3, Timothy Logan4, Yuan Wang5 and Peng Wu2, (1)University of Arizona, Tucson, United States, (2)University of Arizona, Tucson, AZ, United States, (3)University of Arizona, Department of Hydrology and Atmospheric Sciences, Tucson, AZ, United States, (4)Texas A & M University College Station, College Station, TX, United States, (5)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
Steady State Large-Eddy Simulations Forced by an Idealized General Circulation Model (504879)
Zhaoyi Shen, California Institute of Technology, Environmental Science and Engineering, Pasadena, CA, United States, Kyle Pressel, Pacific Northwest National Laboratory, Richland, WA, United States, Zhihong Tan, University of Chicago, Department of the Geophysical Sciences, Chicago, IL, United States and Tapio Schneider, California Institute of Technology, Pasadena, CA, United States
Substantial Cloud Brightening from Shipping in Subtropical Stratocumulus Clouds (524244)
Michael S Diamond, University of Washington, Atmospheric Sciences, Seattle, WA, United States, Hannah Director, University of Washington, Statistics, Oak Ridge, TN, United States, Anna Possner, Carnegie Institution for Science Stanford, Department of Global Ecology, Stanford, CA, United States and Robert Wood, Univ Washington, Seattle, WA, United States
Following Clouds: Seeking Causal Relationships in Aerosol-Cloud Interactions (535136)
Matthew Christensen1, William Jones1, Jan Kazil2, Steven Abel3 and Philip Stier4, (1)University of Oxford, Oxford, United Kingdom, (2)NOAA/CIRES, Boulder, United States, (3)Met Office Hadley center for Climate Change, Exeter, United Kingdom, (4)University of Oxford, Department of Physics, Oxford, United Kingdom
The Arctic boundary layer cloud annual cycle and the influence of surface-atmosphere interactions: Implications for Arctic climate change (538283)
Patrick C Taylor, NASA Langley Research Center, Hampton, VA, United States, Robyn Boeke, Science Systems and Applications, Inc, Hampton, VA, United States, Ying Li, Colorado State University, Fort Collins, CO, United States and David W J Thompson, Colorado State University, Atmospheric Science, Fort Collins, CO, United States
Global Oceanic Low Cloud Radiative Sensitivity to Perturbations in Large-Scale Atmosphere-Ocean Conditions (546023)
Ryan C Scott1, Timothy A Myers2, Joel R Norris1, Mark Zelinka2 and Stephen A Klein2, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Lawrence Livermore National Laboratory, Livermore, CA, United States
A Wider Field-of-View is Better: Quantifying the Information on Trends in Cloud-Fraction from Narrow- and Wide Field-of-View Instruments Using ARM data (561499)
Daniel Feldman, Lawrence Berkeley National Laboratory, Berkeley, CA, United States, Rusen Oktem, Lawrence Berkeley National Lab, Berkeley, CA, United States and David Romps, Lawrence Berkeley National Laboratory, Berkeley, United States
Observations of Centimeter-Scale Cloud Microphysics at the Top of Marine Stratocumulus Clouds measured during the CSET Field Study (571696)
Inyeob La1, Jae Min Yeom2, Seong Soo Yum1 and Raymond A Shaw3, (1)Yonsei University, Seoul, Korea, Republic of (South), (2)Yonsei University, Seoul, South Korea, (3)Michigan Technological University, Houghton, MI, United States
Microphysical properties of low level clouds in West Africa and the tropical Atlantic and their sensitivity to aerosol and updraft distributions (578715)
Christiane Voigt1, Valerian Hahn1, Jonathan Taylor2, Yvonne Boose1, Stefan Kaufmann1, Jonas Kleine1, Daniel N Sauer3, Valéry Catoire4, Hugh Coe2, Phil Rosenberg5, Régis Dupuy6, Alfons Schwarzenboeck7, Cyrille Flamant8 and Hans Schlager9, (1)German Aerospace Center DLR Oberpfaffenhofen, Institute of Atmospheric Physics, Oberpfaffenhofen, Germany, (2)University of Manchester, Manchester, United Kingdom, (3)Ludwig Maximilians University, Meteorological Institute, Munich, Germany, (4)Laboratoire de Physique et Chimie de l'Environnement et de l'Espace, Orléans Cedex 2, France, (5)University of Leeds, Institute of Climate and Atmospheric Science, Leeds, United Kingdom, (6)Laboratoire de Météorologie Physique, University Blaise Pascal, Clermont-Ferrand, France, (7)Laboratoire de Météorologie Physique Observatoire de Physique du Globe de Clermont-Ferrand, Aubiere Cedex, France, (8)LATMOS Laboratoire Atmosphères, Milieux, Observations Spatiales, Paris Cedex 05, France, (9)Institute of Atmospheric Physics, Oberpfaffenhofen, Germany
A Large-Scale Analysis of Pockets of Open Cells Enabled by Deep Learning (582910)
Duncan Watson-Parris1, Samuel Sutherland1, Matthew Christensen2, Anthony Caterini1, Dino Sejdinovic1 and Philip Stier3, (1)University of Oxford, Oxford, United Kingdom, (2)Colorado State University, Fort Collins, CO, United States, (3)University of Oxford, Department of Physics, Oxford, United Kingdom
Attributing marine stratocumulus cloud break-up timing to anthropogenic aerosols (594305)
Tom Goren, NOAA/CIRES, Boulder, CO, United States, Jan Kazil, NOAA/CIRES, Boulder, United States, Fabian Hoffmann, CIRES, Boulder, CO, United States, Takanobu Yamaguchi, NOAA ESRL Chemical Sciences Division / CIRES University of Colorado, Boulder, CO, United States and Graham Feingold, NOAA CSD, Boulder, CO, United States
Examination of Regional Trends in Low-level Cloud Properties Found in the Aqua-MODIS Satellite Record (596429)
William L Smith Jr1, David Painemal2, Benjamin R Scarino3, David R Doelling4, Moguo SUN5, Sunny Sun-Mack3, Patrick Minnis6 and Yan Chen3, (1)NASA Langley Research Center, Hampton, VA, United States, (2)Science Systems and Applications, Inc. Hampton, Hampton, VA, United States, (3)Science Systems and Applications, Inc., Hampton, VA, United States, (4)NASA Langley Research Center, E302, Hampton, VA, United States, (5)SSAI, Hampton, VA, United States, (6)SSAI/Larc, Hampton, VA, United States
Evaluating Lagrangian Large Eddy Simulations of a Pocket of Open cells with Satellite and In-situ Data (598386)
Jan Kazil, NOAA Boulder, Boulder, CO, United States, Matthew Christensen, Colorado State University, Fort Collins, CO, United States, Steven Abel, Met Office Hadley center for Climate Change, Exeter, United Kingdom, Graham Feingold, NOAA CSD, Boulder, CO, United States and Takanobu Yamaguchi, NOAA ESRL Chemical Sciences Division / CIRES University of Colorado, Boulder, CO, United States
Simulations with a multiscale climate model that permits boundary-layer eddies suggest a weaker aerosol-cloud interaction (598412)
Christopher R Terai1, Mike S Pritchard2, Hossein Parishani3, Christopher S. Bretherton4, Peter N Blossey4 and Matthew C Wyant5, (1)University of California Irvine, Irvine, CA, United States, (2)University California Irvine, Department of Earth System Science, Irvine, CA, United States, (3)University of California Irvine, Department of Earth System Science, Irvine, CA, United States, (4)University of Washington, Seattle, WA, United States, (5)University of Washington Seattle Campus, Atmospheric Sciences, Seattle, WA, United States
Subtropical Marine Stratocumulus Cloud Deck Spatial Errors in the E3SMv1 Atmosphere Model (605620)
Michael Brunke1, Po-Lun Ma2, James Edward Jack Reeves Eyre3, Philip J Rasch4, Armin Sorooshian5 and Xubin Zeng3, (1)University of Arizona, Tucson, AZ, United States, (2)Pacific Northwest National Laboratory, Richland, WA, United States, (3)University of Arizona, Department of Hydrology and Atmospheric Sciences, Tucson, AZ, United States, (4)Pacific Northwest National Lab, Richland, WA, United States, (5)University of Arizona, Department of Chemical and Environmental Engineering, Tucson, AZ, United States
Positive marine low cloud feedback inferred from satellite cloud observations (613623)
Timothy A Myers1, Ryan C Scott2, Mark Zelinka1, Stephen A Klein1 and Joel R Norris2, (1)Lawrence Livermore National Laboratory, Livermore, CA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States
Comparing the Lagrangian evolution of subtropical stratocumulus between GCMs and observations (616225)
Ryan M Eastman1, Christopher R Terai2, Dan Grosvenor3 and Robert Wood1, (1)University of Washington, Seattle, WA, United States, (2)Lawrence Livermore National Laboratory, Livermore, CA, United States, (3)University of Leeds, Leeds, United Kingdom
Stratocumulus Cloud Clearings: Statistics from Satellites, Reanalysis Models, and Airborne Measurements (621774)
Hossein Dadashazar1, Ewan Crosbie2, Mohammad Sadegh Majdi2, Milad Panahi2, Mohammad A. Moghaddam3, Ali Behrangi4, Michael Brunke5, Xubin Zeng4, Haflidi Jonsson2, Richard C Flagan6, John Seinfeld7 and Armin Sorooshian1, (1)University of Arizona, Department of Chemical and Environmental Engineering, Tucson, AZ, United States, (2)University of Arizona, Tucson, AZ, United States, (3)The University of Arizona, Department of Hydrology and Atmospheric Sciences, Tucson, AZ, United States, (4)University of Arizona, Department of Hydrology and Atmospheric Sciences, Tucson, AZ, United States, (5)The University of Arizona, Tucson, AZ, United States, (6)California Inst Technology, Department of Chemical Engineering, Pasadena, CA, United States, (7)California Institute of Technology, Pasadena, CA, United States
