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The Model Diagnostics Task Force is constituted to develop, coordinate, and implement process-based model evaluation metrics and a metrics framework in National modeling center metrics packages, leveraging ongoing efforts at the modeling centers toward advancing model evaluation and development capabilities.

This Task Force is constituted of researchers whose projects were successfully evaluated as part of the FY18 competition held by NOAA’s Modeling, Analysis, Predictions, and Projections program on the topic of Process Oriented Metrics. This competition was motivated by a number of factors, including community interest in moving beyond performance oriented metrics toward process oriented metrics, ongoing efforts to develop next-generation climate and Earth system models, evolving plans for CMIP, and a need to link model development and evaluation efforts across modeling centers. Nine projects were selected as a result of the competitive process, including eight focused on developing metrics and one that will develop metrics as well as define a direction and framework for the overall effort.

Task Force Function and Implementation

MAPP Task Force Concept and Terms of Reference


Overall lead: David Neelin, University of California, Los Angeles
NCAR lead: Andrew Gettelman, National Center for Atmospheric Research
GFDL lead: John Krasting, NOAA Geophysical Fluid Dynamics Laboratory
Co-lead: Allison Wing, Florida State University
Co-lead: Yi Ming, NOAA Geophysical Fluid Dynamics Laboratory
Co-lead: Eric Maloney, Colorado State University


Relevant MAPP Program PIs and selected additional invitees.
To view the full Participants list, please visit the Participants page.


To view the full list of Projects, please click here.

News & Events

Scientists meet to improve understanding of model errors

  • 15 June 2017
  • Author: Anonym

Scientists from around the world will meet for the fifth time to advance understanding of the causes of errors in weather and climate models. Co-organized by the Model Diagnostics Task Force (MDTF), the World Climate Research Program Working Group on Numerical Experimentation (WGNE) workshop will focus on several key themes identified by WGNE centered around processes that models currently do not represent well: atmosphere-land-ocean-cryosphere interactions, clouds and precipitation, resolution issues, teleconnections, metrics and diagnostics, and model errors in ensembles. 

In support of the metrics and diagnostics theme, the MDTF, organized by the NOAA Modeling, Analysis, Predictions, and Projections (MAPP) Program, will meet for a one-day group meeting to discuss current and future activities to better diagnose models, or determine whether or not weather and climate models produce good simulations, and if not, why they don’t. NOAA’s MAPP Program contributed to both events.

Environment and Climate Change Canada will host the workshop and MDTF meeting June 19-23 and June 24m respectively, in Montreal.


For more information, go to:   







Dr. Daniel Barrie
Acting MAPP Program Director
P: 301-734-1256

Courtney Byrd
MAPP Program Specialist
P: 301-734-1257

Wenfei Ni
MAPP Program Specialist

Dr. Annarita Mariotti
MAPP Program Director, on detail to EOP/OSTP
P: 301-734-1237

«May 2021»


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