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Title: Evaluation of convection‐permitting model simulations of cloud populations associated with the Madden‐Julian Oscillation using data collected during the AMIE/DYNAMO field campaign

Journal Article · · Journal of Geophysical Research: Atmospheres
 [1];  [1];  [1];  [1];  [1];  [2];  [3]
  1. Pacific Northwest National Laboratory Richland Washington USA
  2. Mesoscale Atmospheric Processes Laboratory NASA Goddard Space Flight Center Greenbelt Maryland USA, Science Systems and Applications, Inc. Lanham Maryland USA
  3. National Center for Atmospheric Research Boulder Colorado USA
+ Show Author Affiliations

Abstract Regional convection‐permitting model simulations of cloud populations observed during the 2011 Atmospheric Radiation Measurement (ARM) Madden‐Julian Oscillation Investigation Experiment/Dynamics of the Madden‐Julian Oscillation Experiment (AMIE/DYNAMO) field campaign are evaluated against ground‐based radar and ship‐based observations. Sensitivity of model simulated reflectivity, surface rain rate, and cold pool statistics to variations of raindrop breakup/self‐collection parameters in four state‐of‐the‐art two‐moment bulk microphysics schemes in the Weather Research and Forecasting (WRF) model is examined. The model simulations generally overestimate reflectivity from large and deep convective cells, and underestimate stratiform rain and the frequency of cold pools. In the sensitivity experiments, introduction of more aggressive raindrop breakup or decreasing the self‐collection efficiency increases the cold pool occurrence frequency in all of the simulations, and slightly reduces the reflectivity and precipitation statistics bias in some schemes but has little effect on the overall mean surface precipitation. Both the radar observations and model simulations of cloud populations show an approximate power law relationship between convective echo‐top height and equivalent convective cell radius.

Sponsoring Organization:
USDOE
OSTI ID:
1402176
Journal Information:
Journal of Geophysical Research: Atmospheres, Journal Name: Journal of Geophysical Research: Atmospheres Journal Issue: 21 Vol. 119; ISSN 2169-897X
Publisher:
American Geophysical Union (AGU)Copyright Statement
Country of Publication:
United States
Language:
English

References (37)

Impacts of microphysical scheme on convective and stratiform characteristics in two high precipitation squall line events: MICROPHYSICAL IMPACTS ON SQUALL LINE journal October 2013
A comprehensive two-moment warm microphysical bulk scheme. I: Description and tests journal July 2000
A parameterization of warm cloud microphysical conversion processes journal June 1994
Impact of an improved longwave radiation model, RRTM, on the energy budget and thermodynamic properties of the NCAR community climate model, CCM3 journal June 2000
Evaluating regional cloud-permitting simulations of the WRF model for the Tropical Warm Pool International Cloud Experiment (TWP-ICE), Darwin, 2006 journal January 2009
Evaluation of cloud-resolving model intercomparison simulations using TWP-ICE observations: Precipitation and cloud structure journal January 2011
A limited area model (LAM) intercomparison study of a TWP-ICE active monsoon mesoscale convective event: LAM INTERCOMPARISON OF TWP-ICE journal June 2012
A comparison of TWP-ICE observational data with cloud-resolving model results: COMPARING TWP-ICE DATA WITH CRM RESULTS journal March 2012
A Madden-Julian Oscillation Event Realistically Simulated by a Global Cloud-Resolving Model journal December 2007
Evaluation of the WRF Double-Moment 6-Class Microphysics Scheme for Precipitating Convection journal January 2010
Comparison of Dual-Polarization Radar Estimators of Rain journal April 1995
The Cumulus Parameterization Problem: Past, Present, and Future journal July 2004
An Economical Procedure for Cartesian Interpolation and Display of Reflectivity Factor Data in Three-Dimensional Space journal May 1979
Equivalent Radar Reflectivity Factors for Snow and Ice Particles journal August 1984
Climatological Characterization of Three-Dimensional Storm Structure from Operational Radar and Rain Gauge Data journal September 1995
Numerical Study of Convection Observed during the Winter Monsoon Experiment Using a Mesoscale Two-Dimensional Model journal October 1989
Organization of Tropical Convection in Low Vertical Wind Shears: The Role of Cold Pools journal July 2001
Fitting Microphysical Observations of Nonsteady Convective Clouds to a Numerical Model: An Application of the Adjoint Technique of Data Assimilation to a Kinematic Model journal October 1993
Mismo Field Experiment in the Equatorial Indian Ocean journal December 2008
Characteristics of High-Resolution Versions of the Met Office Unified Model for Forecasting Convection over the United Kingdom journal September 2008
Explicit Forecasts of Winter Precipitation Using an Improved Bulk Microphysics Scheme. Part II: Implementation of a New Snow Parameterization journal December 2008
Development of an Effective Double-Moment Cloud Microphysics Scheme with Prognostic Cloud Condensation Nuclei (CCN) for Weather and Climate Models journal May 2010
The Impact of Size Distribution Assumptions in a Bulk One-Moment Microphysics Scheme on Simulated Surface Precipitation and Storm Dynamics during a Low-Topped Supercell Case in Belgium journal April 2011
Moist Thermodynamics of the Madden–Julian Oscillation in a Cloud-Resolving Simulation journal November 2011
Breaking the Cloud Parameterization Deadlock journal November 2003
Atmospheric Predictability at Synoptic Versus Cloud-Resolving Scales journal November 2007
Tracking Pulses of the Madden–Julian Oscillation journal December 2013
The Role of Cloud Microphysics Parameterization in the Simulation of Mesoscale Convective System Clouds and Precipitation in the Tropical Western Pacific journal April 2013
The Effects of Explicit versus Parameterized Convection on the MJO in a Large-Domain High-Resolution Tropical Case Study. Part I: Characterization of Large-Scale Organization and Propagation* journal May 2013
Environment and the Lifetime of Tropical Deep Convection in a Cloud-Permitting Regional Model Simulation journal August 2013
The Formation of Wider and Deeper Clouds as a Result of Cold-Pool Dynamics journal August 2014
A New Double-Moment Microphysics Parameterization for Application in Cloud and Climate Models. Part I: Description journal June 2005
A Multimoment Bulk Microphysics Parameterization. Part I: Analysis of the Role of the Spectral Shape Parameter journal September 2005
Cloud-Resolving Model Simulations of KWAJEX: Model Sensitivities and Comparisons with Satellite and Radar Observations journal May 2007
Constructing a Merged Cloud–Precipitation Radar Dataset for Tropical Convective Clouds during the DYNAMO/AMIE Experiment at Addu Atoll journal May 2014
Sensitivity of a Simulated Midlatitude Squall Line to Parameterization of Raindrop Breakup journal August 2012
The Operational JMA Nonhydrostatic Mesoscale Model journal April 2006

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