CCN effects on numerically simulated mixed-phase convective storms with Klaus D. Beheng, University Karlsruhe, Germany Alexander Khain, Hebrew University.

Slides:

Advertisements

Similar presentations

WMO International Cloud Modeling Workshop, July 2004 A two-moment microphysical scheme for mesoscale and microscale cloud resolving models Axel Seifert.

Advertisements

Parametric representation of the hydrometeor spectra for LES warm bulk microphysical schemes. Olivier Geoffroy, Pier Siebesma (KNMI), Jean-Louis Brenguier,

Size Sorting in Bulk & Bin Models Onset of precip – development of particles large enough to sediment relative to cloud droplets & ice crystals. Larger.

Predicting lightning density in Mediterranean storms based on the WRF model dynamic and microphysical fields Yoav Yair 1, Barry Lynn 1, Colin Price 2,

Three Dimensional SBM in MM5 Two Case Studies: Florida Simulation of Sea Breeze (7/27/91): Comparison with FTMS, TMIS California: Orographic Precipitation.

IMPROVE data meeting, Seattle, WA, 13 July 2005 Recent NWP results from IMPROVE Greg Thompson, Roy Rasmussen, Bill Hall, Kyoko Ikeda (NCAR-RAL), Axel Seifert.

Hector simulation We found simulation largely depending on: Model initialization scheme Lateral boundary conditions Physical processes represented in the.

Motivation Sensitivity of Precipitation to Aerosol Concentration. (Based partly on 2 d results). Theory: Precipitation occurring in a “maritime” airmass.

Spectral microphysics in weather forecast models with special emphasis on cloud droplet nucleation Verena Grützun, Oswald Knoth, Martin Simmel, Ralf Wolke.

Aerosol effects on rain and hail formation and their representation using polarimetric radar signatures Eyal Ilotovich, Nir Benmoshe and Alexander Khain.

Roll or Arcus Cloud Supercell Thunderstorms.

ON THE RESPONSE OF HAILSTORMS TO ENHANCED CCN CONCENTRATIONS William R. Cotton Department of Atmospheric Science, Colorado State University.

ASP summer colloquium 2006: The challenge of convective forecasting Microphysics of deep convection Axel Seifert Research Division of the German Weather.

Acknowledgments This research was supported by the DOE Atmospheric Radiation Measurements Program (ARM) and by the PNNL Directed Research and Development.

Microphysics Parameterizations 1 Nov 2010 (“Sub” for next 2 lectures) Wendi Kaufeld.

Microphysics complexity in squall line simulations. As high-resolution climate models increasingly turn towards an explicit representation of convection,

Aerosol Microphysics: Plans for GEOS-CHEM

Understanding the effects of aerosols on deep convective clouds Eric Wilcox, Desert Research Institute, Reno NV Tianle.

Aerosol, Cumulus Congestus, MJO Xiaowen Li GEST/UMBC Wei-Kuo Tao NASA/GSFC Aerocenter Annual Meeting April 2010.

Comparison of Different Approaches NCAR Earth System Laboratory National Center for Atmospheric Research NCAR is Sponsored by NSF and this work is partially.

Model Resolution Prof. David Schultz University of Helsinki, Finnish Meteorological Institute, and University of Manchester.

Electricité atmosphérique et Production d’oxydes d’azote par les éclairs: Etat des lieux et perspectives Christelle Barthe 1 et Jean-Pierre Pinty Laboratoire.

DYMECS: Dynamical and Microphysical Evolution of Convective Storms (NERC Standard Grant) University of Reading: Robin Hogan, Bob Plant, Thorwald Stein,

Assimilating Reflectivity Observations of Convective Storms into Convection-Permitting NWP Models David Dowell 1, Chris Snyder 2, Bill Skamarock 2 1 Cooperative.

Numerical investigations on melting of large ice particles and shedding as well as meteorological applications B. Weigand, N. Roth, ITLR, Univ. Stuttgart.

Earth-Sun System Division National Aeronautics and Space Administration SPoRT SAC Nov 21-22, 2005 Regional Modeling using MODIS SST composites Prepared.

Evaluation of the Latent heat nudging scheme for the rainfall assimilation at the meso- gamma scale Andrea Rossa* and Daniel Leuenberger MeteoSwiss *current.

Outline Background Highlights of NCAR’s R&D efforts A proposed 5-year plan for CWB Final remarks.

Experiences with 0-36 h Explicit Convective Forecasting with the WRF-ARW Model Morris Weisman (Wei Wang, Chris Davis) NCAR/MMM WSN05 September 8, 2005.

Numerial Simulations of Convective Events – The Effect of Propagating Gust Fronts Kaspar and Müller Institute of Atmospheric Physics.

Aerosol-Cloud Interactions and Radiative Forcing: Modeling and Observations Graham Feingold 1, K. S. Schmidt 2, H. Jiang 3, P. Zuidema 4, H. Xue 5, P.

Data assimilation, short-term forecast, and forecasting error

GISS GCM Developmental Efforts for NASA MAP Program Surabi Menon, Igor Sednev (LBNL) and Dorothy Koch, Susanne Bauer (NASA GISS/Columbia University) and.

KoreaCAM-EULAG February 2008 Implementation of a Non-Hydrostatic, Adaptive-Grid Dynamics Core in the NCAR Community Atmospheric Model William J. Gutowski,

LIDAR OBSERVATIONS CONSTRAINT FOR CIRRUS MODELISATION IN Large Eddy Simulations O. Thouron, V. Giraud (LOA - Lille) H. Chepfer, V. Noël(LMD - Palaiseau)

Morrison/Gettelman/GhanAMWG January 2007 Two-moment Stratiform Cloud Microphysics & Cloud-aerosol Interactions in CAM H. Morrison, A. Gettelman (NCAR),

Edward Mansell National Severe Storms Laboratory Donald MacGorman and Conrad Ziegler National Severe Storms Laboratory, Norman, OK Funding sources in the.

Three real case simulations by Meso-NH validated against satellite observations J.-P. Chaboureau and J.-P. Pinty Laboratoire d’Aérologie, Toulouse 1.Elbe.

Aktionsprogramm Thorsten Reinhardt, DWD Sensitivity Tests Regarding Assumed Graupel Particle Properties Motivation: Gilmore et al (MWR 2004) found.

WMO Cloud Modeling workshop, Warsaw, July 2012 WMO Cloud Modeling workshop, Warsaw, July 2012 Idealized Oklahoma squall Line 20 june 2007, reflectivity.

The Sensitivity of a Simulated Supercell to Emulated Radiative Cooling beneath the Anvil Paul Markowski and Jerry Harrington Penn State University.

Georg A. Grell (NOAA / ESRL/GSD) and Saulo R. Freitas (INPE/CPTEC) A scale and aerosol aware stochastic convective parameterization for weather and air.

MM5 studies at Wageningen University (NL) Title Jordi Vilà (Group 4) NL North sea Radar MM5 NL North sea.

CCN Variability During LBA-SMOCC-EMfiN! 2002 and Its Role on Precipitation Initiation Over the Amazon Basin.

Yuqing Wang Department of Meteorology, University of Hawaii The 65 th IHC, February 28-March 3, 2011.

COSMO General Meeting, WG3-Session, 7 Sep Cloud microphysics in the COSMO model: New parameterizations of ice nucleation and melting of snow.

Towards parameterization of cloud drop size distribution for large scale models Wei-Chun Hsieh Athanasios Nenes Image source: NCAR.

Update on progress with the implementation of a new two-moment microphysics scheme: Model description and single-column tests Hugh Morrison, Andrew Gettelman,

Remote sensing and modeling of cloud contents and precipitation efficiency Chung-Hsiung Sui Institute of Hydrological Sciences National Central University.

Chien Wang Massachusetts Institute of Technology A Close Look at the Aerosol-Cloud Interaction in Tropical Deep Convection.

The Risks and Rewards of High-Resolution and Ensemble Modeling Systems David Schultz NOAA/National Severe Storms Laboratory Paul Roebber University of.

The Third Indirect Aerosol-Cloud Effect: Global Model Sensitivity and Restrictions Hans-F. Graf and Frank J. Nober EGS-AGU-ESF meeting Nice, April 2003.

Jason Milbrandt Recherche en Prévision Numérique [RPN] Meteorological Research Division, Environment Canada GEM Workshop, June 12, 2007 Multi-Moment Cloud.

SIMULATION OF AEROSOL EFFECTS ON CONVECTIVE CLOUDS UNDER CONTINENTAL AND MARITIME CONDITIONS Alexander Khain, Andrei Pokrovsky and Daniel Rosenfeld Institute.

Background – Building their Case “continental” – polluted, aerosol laden “maritime” – clean, pristine Polluted concentrations are 1-2 orders of magnitude.

12 th annual CMAS conference Impact of Biomass Burning Aerosols on Regional Climate over Southeast US Peng Liu, Yongtao Hu, Armistead G. Russell, Athanasios.

Characteristics of Isolated Convective Storms Morris L. Weisman Joseph B. Klemp Presented to you by: Elizabeth Polito.

Impact of Cloud Microphysics on the Development of Trailing Stratiform Precipitation in a Simulated Squall Line: Comparison of One- and Two-Moment Schemes.

1 Detailed Microphysical Model Simulations of Freezing Drizzle Formation Istvan Geresdi Roy Rasmussen University of Pecs, Hungary NCAR Research funded.

Reflections on Radar Observations of Mesoscale Precipitation

Putting the Clouds Back in Aerosol-Cloud Interactions

Multiscale aspects of cloud-resolving simulations over complex terrain

COPE: The COnvective Precipitation Experiment. Met Office interests

Shuyi S. Chen, Ben Barr, Milan Curcic and Brandon Kerns

Cathy Hohenegger 1,2 Linda Schlemmer 1,2 Bjorn Stevens 1

Sensitivity of WRF microphysics to aerosol concentration

Seong Soo Yum1, Wonheung Kim1, Jae-In Song1 and Chang Ki Kim2

Dawson, D. T. II, M. Xue, J. A. Milbrandt, and A. Shapiro, 2015

Sensitivity of idealized squall-line simulations to the level of complexity used in two-moment bulk microphysics schemes. Speaker: Huan Chen Professor:

Presentation transcript:

CCN effects on numerically simulated mixed-phase convective storms with Klaus D. Beheng, University Karlsruhe, Germany Alexander Khain, Hebrew University Jerusalem, Israel Axel Seifert National Center for Atmospheric Research (ASP/MMM)

Motivation Explicit simulation of aerosol-cloud interaction is necessary to estimate indirect aerosol effects on climate Considering aerosol conditions might increase the forecast skill of NWP models How can we improve the representation of clouds in weather and climate models?

(Seifert and Beheng 2001) A two-moment 5-class cloud scheme

Nucleation? RICO!

(Seifert and Beheng 2003, submitted)

Comparison within the Hebrew Univ. Cloud Model (HUCM)

BIN BULK CONT MARI Timeseries of maximum mass concentrations

Maximum vertical velocities

Total grid averaged precipitation (Seifert et al. 2004, submitted)

A numerical study of CCN effects on different storm types Weisman and Klemp (1982) sensitivity study, but now including CCN as a third external parameter: Variation of 1. CAPE 2. vertical wind shear 3. CCN concentration Effects on total precipitation? (Seifert and Beheng 2003, submitted)

Total 3h-precipitation supercell convection multicell conv.

Total 3h-precipitation and rel. change for cont. CCN

Coupling of microphysics and dynamics!

Continuous transition from maritime to cont. CCN

Confronting the model with real data! Dual-wavelength radar data from CRYSTAL-FACE: (data provided by G. Heymsfield, NASA)

Observations vs. WRF Simulation

Summary A new two-moment microphysical scheme has been developed and is implemented in WRF (KAMM2, LM, MM5) The scheme is able to resolve CCN effects explicitly The scheme shows a good agreement with the spectral bin microphysics in the Hebrew Univ. Cloud Model A sensitivity study shows an inverse aerosol effect for multicellular convection (latent heat effect) Validation with dual-wavelength radar?

Autoconversion

GATE squall line – total precip.

Bulk nucleation scheme