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#A02 CAPT simulations with ACME v1 CONUS RRM grid

#A02 CAPT simulations with ACME v1 CONUS RRM grid

Aug 22, 2017

Poster Title

Understanding the Cloud and Precipitation Biases in ACME v1 over the Central US with the CONUS RRM Grid

Authors

@Xue Zheng @Chris Golaz @Shaocheng Xie @Wuyin Lin @Qi Tang @Erika Roesler (Unlicensed)

Group

Atmosphere

Experiment

 

Poster Category

Early Result

Submission Type

Poster

Poster Link

ACME_2017_Zheng_48x48.pdf

 

Abstract

Simulating precipitation processes, clouds, and hydrologic cycle at regional scale over the central US remains challenging for global climate models. ACME v1 atmosphere model has implemented many new features in the physical parameterizations. It is important to assess the persistent model biases over the central US in ACME v1 and exam how the biases respond to different model settings. This study conducts ACME v1 5-year AMIP simulations and several sets of short-term hindcasts (i.e. CAPT simulations) for the summer of 2011 with the regular grid and the CONUS RRM grid. Based on observations, especially ARM observations, the evolution of cloud and precipitation biases over the central US with various model parameter settings is analyzed in this study.