High Resolution Model Intercomparison Project (HighResMIP v1.0) for CMIP6

Abstract. Robust projections and predictions of climate variability and change, particularly at regional scales, rely on the driving processes being represented with fidelity in model simulations. The role of enhanced horizontal resolution in improved process representation in all components of the climate system is of growing interest, particularly as some recent simulations suggest both the possibility of significant changes in large-scale aspects of circulation as well as improvements in small-scale processes and extremes. However, such high-resolution global simulations at climate timescales, with resolutions of at least 50 km in the atmosphere and 0.25° in the ocean, have been performed at relatively few research centres and generally without overall coordination, primarily due to their computational cost. Assessing the robustness of the response of simulated climate to model resolution requires a large multi-model ensemble using a coordinated set of experiments. The Coupled Model Intercomparison Project 6 (CMIP6) is the ideal framework within which to conduct such a study, due to the strong link to models being developed for the CMIP DECK experiments and other model intercomparison projects (MIPs). Increases in high-performance computing (HPC) resources, as well as the revised experimental design for CMIP6, now enable a detailed investigation of the impact of increased resolution up to synoptic weather scales on the simulated mean climate and its variability. The High Resolution Model Intercomparison Project (HighResMIP) presented in this paper applies, for the first time, a multi-model approach to the systematic investigation of the impact of horizontal resolution. A coordinated set of experiments has been designed to assess both a standard and an enhanced horizontal-resolution simulation in the atmosphere and ocean. The set of HighResMIP experiments is divided into three tiers consisting of atmosphere-only and coupled runs and spanning the period 1950–2050, with the possibility of extending to 2100, together with some additional targeted experiments. This paper describes the experimental set-up of HighResMIP, the analysis plan, the connection with the other CMIP6 endorsed MIPs, as well as the DECK and CMIP6 historical simulations. HighResMIP thereby focuses on one of the CMIP6 broad questions, “what are the origins and consequences of systematic model biases?”, but we also discuss how it addresses the World Climate Research Program (WCRP) grand challenges.

[1]  Michael F. Wehner,et al.  The resolution sensitivity of Northern Hemisphere blocking in four 25-km atmospheric global circulation models. , 2017 .

[2]  P. Chang,et al.  Structure and dynamics of the Benguela low-level coastal jet , 2017, Climate Dynamics.

[3]  Ingo Richter,et al.  Challenges and Prospects for Reducing Coupled Climate Model SST Biases in the Eastern Tropical Atlantic and Pacific Oceans: The U.S. CLIVAR Eastern Tropical Oceans Synthesis Working Group , 2016 .

[4]  Jian Lu,et al.  Uncertainties in Projecting Future Changes in Atmospheric Rivers and Their Impacts on Heavy Precipitation over Europe , 2016 .

[5]  Richard J. Greatbatch,et al.  Western boundary currents regulated by interaction between ocean eddies and the atmosphere , 2016, Nature.

[6]  B. Stevens,et al.  Simple Plumes: A parameterization of anthropogenic aerosol optical properties and an associated Twomey effect for climate studies , 2016 .

[7]  Hannah M. Christensen,et al.  Climate SPHINX: Evaluating the impact of resolution and stochastic physics parameterisations in climate simulations , 2016 .

[8]  Qiang Wang,et al.  Designing variable ocean model resolution based on the observed ocean variability , 2016 .

[9]  Rhys Parfitt,et al.  The atmospheric frontal response to SST perturbations in the Gulf Stream region , 2016 .

[10]  Chris Funk,et al.  Projections of leaf area index in earth system models , 2016 .

[11]  L. Leung,et al.  A projection of changes in landfalling atmospheric river frequency and extreme precipitation over western North America from the Large Ensemble CESM simulations , 2016 .

[12]  Caroline L. Bain,et al.  Sahel decadal rainfall variability and the role of model horizontal resolution , 2016 .

[13]  L. Jackson,et al.  Stable AMOC off state in an eddy-permitting coupled climate model , 2015, Climate Dynamics.

[14]  T. Semmler,et al.  Towards multi-resolution global climate modeling with ECHAM6-FESOM. Part II: climate variability , 2013, Climate Dynamics.

[15]  M. Rummukainen.  Added value in regional climate modeling , 2016 .

[16]  François Massonnet,et al.  Clusters of interannual sea ice variability in the northern hemisphere , 2016, Climate Dynamics.

[17]  Shoshiro Minobe,et al.  The influence of the Gulf Stream on wintertime European blocking , 2016, Climate Dynamics.

[18]  Veronika Eyring,et al.  Overview of the Coupled Model Intercomparison Project Phase 6 (CMIP6) experimental design and organization , 2015 .

[19]  W. Large,et al.  The Benguela upwelling system: Quantifying the sensitivity to resolution and coastal wind representation in a global climate model , 2015 .

[20]  Shian-Jiann Lin,et al.  Simulation and Prediction of Category 4 and 5 Hurricanes in the High-Resolution GFDL HiFLOR Coupled Climate Model , 2015 .

[21]  Xiaopei Lin,et al.  Distant Influence of Kuroshio Eddies on North Pacific Weather Patterns? , 2015, Scientific Reports.

[22]  Steven J. Woolnough,et al.  Atmosphere‐ocean coupled processes in the Madden‐Julian oscillation , 2015 .

[23]  K. Emanuel.  Effect of Upper-Ocean Evolution on Projected Trends in Tropical Cyclone Activity , 2015 .

[24]  Elinor R. Martin,et al.  Representation of African Easterly Waves in CMIP5 Models , 2015 .

[25]  Riko Oki,et al.  The EarthCARE Satellite: The Next Step Forward in Global Measurements of Clouds, Aerosols, Precipitation, and Radiation , 2015 .

[26]  Y. Qian,et al.  Dynamical and thermodynamical modulations on future changes of landfalling atmospheric rivers over western North America , 2015 .

[27]  Chun Zhao,et al.  Exploring a Multiresolution Approach Using AMIP Simulations , 2015 .

[28]  R. Haarsma,et al.  Resolution dependence of European precipitation in a state-of-the-art atmospheric general circulation model , 2015 .

[29]  Reto Knutti,et al.  Addressing interdependency in a multimodel ensemble by interpolation of model properties , 2015 .

[30]  L. Leung,et al.  Toward the Dynamical Convergence on the Jet Stream in Aquaplanet AGCMs , 2015 .

[31]  K. Emanuel,et al.  Hurricanes and Climate: The U.S. CLIVAR Working Group on Hurricanes , 2015 .

[32]  Ronald van Haren,et al.  Resolution dependence of circulation forced future central European summer drying , 2015 .

[33]  Jian Lu,et al.  Resolution and Dynamical Core Dependence of Atmospheric River Frequency in Global Model Simulations , 2015 .

[34]  D. Stevens,et al.  Propagation of the Madden–Julian Oscillation and scale interaction with the diurnal cycle in a high-resolution GCM , 2015, Climate Dynamics.

[35]  M. Ambaum,et al.  The Lifecycle of the North Atlantic Storm Track , 2015 .

[36]  Leonard A. Smith,et al.  Tales of future weather , 2015 .

[37]  Stuart A. Cunningham,et al.  The North Atlantic subpolar circulation in an eddy-resolving global ocean model , 2015 .

[38]  Kevin I. Hodges,et al.  Tropical Cyclones in the UPSCALE Ensemble of High-Resolution Global Climate Models* , 2015 .

[39]  Peter Berg,et al.  Arctic climate change in an ensemble of regional CORDEX simulations , 2015 .

[40]  W. Hazeleger,et al.  Global and regional climate impacts of future aerosol mitigation in an RCP6.0-like scenario in EC-Earth , 2015, Climatic Change.

[41]  B. Hewitson,et al.  Daily characteristics of West African summer monsoon precipitation in CORDEX simulations , 2015, Theoretical and Applied Climatology.

[42]  S. Gualdi,et al.  The role of the export of tropical moisture into midlatitudes for extreme precipitation events in the Mediterranean region , 2015, Theoretical and Applied Climatology.

[43]  A. V. Delden,et al.  Severe Autumn storms in future Western Europe with a warmer Atlantic Ocean , 2015, Climate Dynamics.

[44]  S. Gualdi,et al.  An assessment of a multi-model ensemble of decadal climate predictions , 2015, Climate Dynamics.

[45]  Chris Funk,et al.  Leaf Area Index in Earth System Models: evaluation and projections , 2014 .

[46]  Arun Kumar,et al.  Characteristics of tropical cyclones in high‐resolution models in the present climate , 2014 .

[47]  D. Lawrence,et al.  A new synoptic scale resolving global climate simulation using the Community Earth System Model , 2014 .

[48]  Takemasa Miyoshi,et al.  The Non-hydrostatic Icosahedral Atmospheric Model: description and development , 2014, Progress in Earth and Planetary Science.

[49]  Bryan N. Lawrence,et al.  High-resolution global climate modelling: the UPSCALE project, a large-simulation campaign , 2014 .

[50]  Kevin I. Hodges,et al.  Can Polar Lows be Objectively Identified and Tracked in the ECMWF Operational Analysis and the ERA-Interim Reanalysis? , 2014 .

[51]  L. Polvani,et al.  Southern Hemisphere Cloud–Dynamics Biases in CMIP5 Models and Their Implications for Climate Projections , 2014 .

[52]  C. Taylor,et al.  The scale dependence and structure of convergence fields preceding the initiation of deep convection , 2014 .

[53]  I. Watterson,et al.  What Influences the Skill of Climate Models over the Continents , 2014 .

[54]  Gabriele Villarini,et al.  Intense Precipitation Events Associated with Landfalling Tropical Cyclones in Response to a Warmer Climate and Increased CO2 , 2014 .

[55]  D. Handorf,et al.  Effect of horizontal resolution on ECHAM6-AMIP performance , 2014, Climate Dynamics.

[56]  C. Hannay,et al.  Exploratory High-Resolution Climate Simulations using the Community Atmosphere Model (CAM) , 2014 .

[57]  G. Vecchi,et al.  Sensitivity of tropical cyclone rainfall to idealized global-scale forcings , 2014 .

[58]  Nick Rayner,et al.  The Met Office Hadley Centre sea ice and sea surface temperature data set, version 2: 1. Sea ice concentrations , 2014 .

[59]  L. Polvani,et al.  Southern Hemisphere Cloud – Dynamics Biases in CMIP 5 Models and Their Implications for Climate Projections , 2014 .

[60]  Frank O. Bryan,et al.  Storm track response to ocean fronts in a global high-resolution climate model , 2014, Climate Dynamics.

[61]  Paul Berrisford,et al.  The role of horizontal resolution in simulating drivers of the global hydrological cycle , 2014, Climate Dynamics.

[62]  R. Vautard,et al.  EURO-CORDEX: new high-resolution climate change projections for European impact research , 2014, Regional Environmental Change.

[63]  Shuting Yang,et al.  Tropical cyclones in enhanced resolution CMIP5 experiments , 2014, Climate Dynamics.

[64]  Nick Rayner,et al.  EN4: Quality controlled ocean temperature and salinity profiles and monthly objective analyses with uncertainty estimates , 2013 .

[65]  R. Bell,et al.  Response of Tropical Cyclones to Idealized Climate Change Experiments in a Global High-Resolution Coupled General Circulation Model , 2013 .

[66]  Reto Knutti,et al.  Imprint of Southern Ocean eddies on winds, clouds and rainfall , 2013 .

[67]  L. Leung,et al.  Climate change projections of the North American Regional Climate Change Assessment Program (NARCCAP) , 2013, Climatic Change.

[68]  T. Delworth,et al.  Controls of Global Snow under a Changed Climate , 2013 .

[69]  Hajime Okamoto,et al.  Evaluating cloud microphysics from NICAM against CloudSat and CALIPSO , 2013 .

[70]  G. Villarini,et al.  The nexus between atmospheric rivers and extreme precipitation across Europe , 2013 .

[71]  Ronggao Liu,et al.  Characterization and intercomparison of global moderate resolution leaf area index (LAI) products: Analysis of climatologies and theoretical uncertainties , 2013 .

[72]  A. Sterl,et al.  More hurricanes to hit western Europe due to global warming , 2013 .

[73]  D. Rowell.  Simulating SST Teleconnections to Africa: What is the State of the Art? , 2013 .

[74]  Elizabeth A. Barnes,et al.  Response of the Midlatitude Jets, and of Their Variability, to Increased Greenhouse Gases in the CMIP5 Models , 2013 .

[75]  Peter E. Thornton,et al.  Global Latitudinal-Asymmetric Vegetation Growth Trends and Their Driving Mechanisms: 1982-2009 , 2013, Remote. Sens..

[76]  Eric P. Chassignet,et al.  Gulf Stream Separation in Numerical Ocean Models , 2013 .

[77]  Alessandro Anav,et al.  Global Data Sets of Vegetation Leaf Area Index (LAI)3g and Fraction of Photosynthetically Active Radiation (FPAR)3g Derived from Global Inventory Modeling and Mapping Studies (GIMMS) Normalized Difference Vegetation Index (NDVI3g) for the Period 1981 to 2011 , 2013, Remote. Sens..

[78]  H. Ishikawa,et al.  Environmental Factors Contributing to Tropical Cyclone Genesis over the Western North Pacific , 2013 .

[79]  Mats Hamrud,et al.  Revolutionizing Climate Modeling with Project Athena: A Multi-Institutional, International Collaboration , 2013 .

[80]  P. Vidale,et al.  Investigating Global Tropical Cyclone Activity with a Hierarchy of AGCMs: The Role of Model Resolution , 2013 .

[81]  Daniela JacobJuliane,et al.  EURO-CORDEX: new high-resolution climate change projections for European impact research , 2013 .

[82]  Hiroyuki Murakami,et al.  Resolution dependence of tropical cyclone formation in CMIP3 and finer resolution models , 2013, Climate Dynamics.

[83]  M. Balmaseda,et al.  Impact of the sea surface temperature forcing on hindcasts of Madden-Julian Oscillation events using the ECMWF model , 2012 .

[84]  Andrew Dawson,et al.  Simulating regime structures in weather and climate prediction models , 2012 .

[85]  Enrico Scoccimarro,et al.  Tropical cyclone effects on Arctic Sea ice variability , 2012 .

[86]  Frank O. Bryan,et al.  Impact of ocean model resolution on CCSM climate simulations , 2012, Climate Dynamics.

[87]  G. Vecchi,et al.  Biases in the Atlantic ITCZ in Seasonal–Interannual Variations for a Coarse- and a High-Resolution Coupled Climate Model , 2012 .

[88]  Toru Nozawa,et al.  MIROC4h—A New High-Resolution Atmosphere-Ocean Coupled General Circulation Model , 2012 .

[89]  Nils Wedi,et al.  High-Resolution Global Climate Simulations with the ECMWF Model in Project Athena: Experimental Design, Model Climate, and Seasonal Forecast Skill , 2012 .

[90]  E. Giarolla,et al.  Coupled Ocean–Atmosphere Variations over the South Atlantic Ocean , 2012 .

[91]  G. Vecchi,et al.  Simulated Climate and Climate Change in the GFDL CM2.5 High-Resolution Coupled Climate Model , 2012 .

[92]  Karl E. Taylor,et al.  An overview of CMIP5 and the experiment design , 2012 .

[93]  Ed Hawkins,et al.  Time of emergence of climate signals , 2012 .

[94]  Takashi T. Sakamoto,et al.  MIROC 4 h — A New High-Resolution Atmosphere-Ocean Coupled General Circulation Model , 2012 .

[95]  T. Yamagata,et al.  Impact of intra-daily SST variability on ENSO characteristics in a coupled model , 2012, Climate Dynamics.

[96]  R. Laprise,et al.  Potential for added value in precipitation simulated by high-resolution nested Regional Climate Models and observations , 2012, Climate Dynamics.

[97]  F. Martin Ralph,et al.  Flooding in Western Washington: The Connection to Atmospheric Rivers* , 2011 .

[98]  Chris Harris,et al.  Improved Atlantic winter blocking in a climate model , 2011 .

[99]  L. Bengtsson,et al.  A Comparison of Extratropical Cyclones in Recent Reanalyses ERA-Interim, NASA MERRA, NCEP CFSR, and JRA-25 , 2011 .

[100]  M. Hoerling,et al.  On North American Decadal Climate for 2011–20 , 2011 .

[101]  E. Hawkins,et al.  The potential to narrow uncertainty in projections of regional precipitation change , 2011 .

[102]  Chris Harris,et al.  Improved Atlantic blocking in a climate model , 2011 .

[103]  Frank O. Bryan,et al.  Frontal scale air-sea interaction in high-resolution coupled climate models , 2010 .

[104]  Dudley B. Chelton,et al.  Coupled ocean-atmosphere interaction at oceanic mesoscales , 2010 .

[105]  M. Blackburn,et al.  Storm track sensitivity to sea surface temperature resolution in a regional atmosphere model , 2010 .

[106]  Shoshiro Minobe,et al.  Precipitation Response to the Gulf Stream in an Atmospheric GCM , 2010 .

[107]  R. Neale,et al.  Improvements in a half degree atmosphere/land version of the CCSM , 2010 .

[108]  E. Gerber,et al.  Intermodel variability of the poleward shift of the austral jet stream in the CMIP3 integrations linked to biases in 20th century climatology , 2010 .

[109]  Joseph Tribbia,et al.  Crucial Experiments in Climate Science , 2010 .

[110]  S. Gualdi,et al.  The Double-ITCZ Syndrome in Coupled General Circulation Models: The Role of Large-Scale Vertical Circulation Regimes , 2010 .

[111]  Richard L. Smith,et al.  The effect of horizontal resolution on simulation of very extreme US precipitation events in a global atmosphere model , 2010 .

[112]  Shian-Jiann Lin,et al.  Simulations of global hurricane climatology, interannual variability, and response to global warming using a 50-km resolution GCM. , 2009 .

[113]  Hiroaki Miura,et al.  Diurnal Cycle of Precipitation in the Tropics Simulated in a Global Cloud-Resolving Model , 2009 .

[114]  David P. Stevens,et al.  Impact of Resolution on the Tropical Pacific Circulation in a Matrix of Coupled Models , 2009 .

[115]  Simon Wilson,et al.  U.K. HiGEM: The New U.K. High-Resolution Global Environment Model― Model Description and Basic Evaluation , 2009 .

[116]  Y. Qian,et al.  Atmospheric rivers induced heavy precipitation and flooding in the western U.S. simulated by the WRF regional climate model , 2009 .

[117]  Shoshiro Minobe,et al.  Influence of the Gulf Stream on the troposphere , 2008, Nature.

[118]  Reto Knutti,et al.  The use of the multi-model ensemble in probabilistic climate projections , 2007, Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences.

[119]  A. Sterl,et al.  On the robustness of ENSO teleconnections , 2007 .

[120]  R. Wu,et al.  Regimes of seasonal air–sea interaction and implications for performance of forced simulations , 2007 .

[121]  Lennart Bengtsson,et al.  How may tropical cyclones change in a warmer climate? , 2007 .

[122]  M. Dettinger,et al.  Flooding on California's Russian River: Role of atmospheric rivers , 2006 .

[123]  Bin Wang,et al.  Fundamental challenge in simulation and prediction of summer monsoon rainfall , 2005 .

[124]  Renate Hagedorn,et al.  The rationale behind the success of multi-model ensembles in seasonal forecasting — I. Basic concept , 2005 .

[125]  Renate Hagedorn,et al.  The rationale behind the success of multi-model ensembles in seasonal forecasting-II , 2005 .

[126]  Hisashi Nakamura,et al.  10-km Mesh Meso-scale Resolving Simulations of the Global Atmosphere on the Earth Simulator - Preliminary Outcomes of AFES (AGCM for the Earth Simulator) - , 2004 .

[127]  Y. Masumoto.  A fifty-year eddy-resolving simulation of the world ocean : Preliminary outcomes of OFES (OGCM for the Earth Simulator) , 2004 .

[128]  A. Robertson,et al.  Simulations of the atmospheric response to South Atlantic sea surface temperature anomalies , 2003 .

[129]  Thomas M. Smith,et al.  An Improved In Situ and Satellite SST Analysis for Climate , 2002 .

[130]  P. Mathieu,et al.  Response of the atmosphere–ocean mixed‐layer system to anomalous ocean heat‐flux convergence , 2002 .

[131]  Carlos R. Mechoso,et al.  Interannual and Interdecadal Variability of the South Atlantic Convergence Zone , 2000 .

[132]  M. Maltrud,et al.  Numerical simulation of the North Atlantic Ocean at 1/10 degrees , 2000 .

[133]  A. Semtner,et al.  Impact of mesoscale ocean currents on sea ice in high-resolution Arctic ice and ocean simulations , 1999 .

[134]  G. Martin,et al.  The simulation of the Asian summer monsoon, and its sensitivity to horizontal resolution, in the UK meteorological office unified model , 1999 .

[135]  Yong Zhu,et al.  A Proposed Algorithm for Moisture Fluxes from Atmospheric Rivers , 1998 .

[136]  D. Battisti,et al.  The Basic Effects of Atmosphere–Ocean Thermal Coupling on Midlatitude Variability* , 1998 .

[137]  U. Cubasch,et al.  Simulation of the Indian monsoon climatology in ECHAM3 climate model: sensitivity to horizontal resolution , 1997 .

[138]  Gerald L. Potter,et al.  Simulation of the Northern Summer Monsoon in the ECMWF Model: Sensitivity to Horizontal Resolution , 1994 .

[139]  J. Chen,et al.  Defining leaf area index for non‐flat leaves , 1992 .