EGU2020-20472
https://doi.org/10.5194/egusphere-egu2020-20472
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Using objective comparisons of observed and simulated precipitation to help guide the improvement of Earth System Models

Peter Gleckler1 and Angeline Pendergrass2
Peter Gleckler and Angeline Pendergrass
  • 1Lawrence Livermore National Laboratory, Program for Climate Model Diagnosis and Intercomparison (PCMDI), United States of America (pjgleckler@gmail.com)
  • 2National Center for Atmospheric Research (NCAR), Boulder, United States of America, (apgrass@ucar.edu)

In this presentation we discuss a community-based effort to establish the benchmarking of simulated precipitation in Earth System Models.   We first summarize the impetus and outcomes of a recent workshop dedicated to the topic.    This includes the identification of a tiered system of objective tests (metrics) for the following climatological characteristics:  the mean state, seasonal cycle, variability across time scales, intensity/frequency distributions, extremes and drought.   Preliminary results are shown gauging model performance changes across multiple generations of CMIP.   The performance tests we describe are part of an open-source analysis framework being made available to model developers to help them make judgements about the quality of simulated precipitation during the model development process.

How to cite: Gleckler, P. and Pendergrass, A.: Using objective comparisons of observed and simulated precipitation to help guide the improvement of Earth System Models, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-20472, https://doi.org/10.5194/egusphere-egu2020-20472, 2020

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