High-resolution climate simulations using the Model for Prediction Across Scales - Atmosphere (MPAS-A; version 5.1)

We present multi-seasonal simulations representative of present-day and
future environments using the global Model for Prediction Across Scales –
Atmosphere (MPAS-A) version 5.1 with high resolution (15 km) throughout
the Northern Hemisphere. We select 10 simulation years with varying phases
of El Niño–Southern Oscillation (ENSO) and integrate each for 14.5 months.
We use analyzed sea surface temperature (SST) patterns for present-day
simulations. For the future climate simulations, we alter present-day SSTs
by applying monthly-averaged temperature changes derived from a 20-member
ensemble of Coupled Model Intercomparison Project phase 5 (CMIP5) general
circulation models (GCMs) following the Representative Concentration
Pathway (RCP) 8.5 emissions scenario. Daily sea ice fields, obtained from
the monthly-averaged CMIP5 ensemble mean sea ice, are used for present-day
and future simulations. Due to storage limitations, the full dataset is
much too large to be published (~50TB). Instead, a subset consisting of
6-hourly warm season (May-September) 2-meter temperature, precipitation,
and 500hPa height is presented. If you wish to access the full dataset (as
presented in Michaelis et al. 2019), please contact one of the authors.