This dataset contains 800 years' simulation of the Marine Isotope Stage 3 climate transition, using the NorESM1-F model. Experiment protocol is described in Jansen et al., 2020, A new era of abrupt climate change - perspectives from the past. Data description: case = NBF1850_f19_tn11_test_mis3b_fwf3b_fram; Source = CAM ; Variables = lev:hybrid level at midpoints (1000(A+B)) ; hyam:hybrid A coefficient at layer midpoints ; hybm:hybrid B coefficient at layer midpoints ; ilev:hybrid level at interfaces (1000(A+B)) ; hyai:hybrid A coefficient at layer interfaces ; hybi:hybrid B coefficient at layer interfaces ; P0:reference pressure ; time:time ; date:current date (YYYYMMDD) ; datesec:current seconds of current date ; lat:latitude ; lon:longitude ; slat:staggered latitude ; slon:staggered longitude ; w_stag:staggered latitude weights ; time_bnds:time interval endpoints ; ntrm:spectral truncation parameter M ; ntrn:spectral truncation parameter N ; ntrk:spectral truncation parameter K ; ndbase:base day ; nsbase:seconds of base day ; nbdate:base date (YYYYMMDD) ; nbsec:seconds of base date ; mdt:timestep ; nlon:number of longitudes ; wnummax:cutoff Fourier wavenumber ; gw:gauss weights ; ndcur:current day (from base day) ; nscur:current seconds of current day ; co2vmr:co2 volume mixing ratio ; ch4vmr:ch4 volume mixing ratio ; n2ovmr:n2o volume mixing ratio ; f11vmr:f11 volume mixing ratio ; f12vmr:f12 volume mixing ratio ; sol_tsi:total solar irradiance ; nsteph:current timestep ; CLDHGH:Vertically-integrated high cloud ; CLDLOW:Vertically-integrated low cloud ; CLDMED:Vertically-integrated mid-level cloud ; CLDTOT:Vertically-integrated total cloud ; CLOUD:Cloud fraction ; FLDS:Downwelling longwave flux at surface ; FLDSC:Clearsky downwelling longwave flux at surface ; FLNS:Net longwave flux at surface ; FLNSC:Clearsky net longwave flux at surface ; FLNT:Net longwave flux at top of model ; FLNTC:Clearsky net longwave flux at top of model ; FLUT:Upwelling longwave flux at top of model ; FLUTC:Clearsky upwelling longwave flux at top of model ; FSDS:Downwelling solar flux at surface ; FSDSC:Clearsky downwelling solar flux at surface ; FSDTOA:Downwelling solar flux at top of atmosphere ; FSNS:Net solar flux at surface ; FSNSC:Clearsky net solar flux at surface ; FSNT:Net solar flux at top of model ; FSNTC:Clearsky net solar flux at top of model ; FSNTOA:Net solar flux at top of atmosphere ; FSNTOAC:Clearsky net solar flux at top of atmosphere ; FSUTOA:Upwelling solar flux at top of atmosphere ; ICEFRAC:Fraction of sfc area covered by sea-ice ; LANDFRAC:Fraction of sfc area covered by land ; LHFLX:Surface latent heat flux ; LWCF:Longwave cloud forcing ; OCNFRAC:Fraction of sfc area covered by ocean ; OMEGA:Vertical velocity (pressure) ; OMEGA500:Vertical velocity at 500 mbar pressure surface ; OMEGA850:Vertical velocity at 850 mbar pressure surface ; PBLH:PBL height ; PRECC:Convective precipitation rate (liq + ice) ; PRECL:Large-scale (stable) precipitation rate (liq + ice) ; PRECT:Total (convective and large-scale) precipitation rate (liq + ice) ; PS:Surface pressure ; PSL:Sea level pressure ; Q:Specific humidity ; QFLX:Surface water flux ; QREFHT:Reference height humidity ; RELHUM:Relative humidity ; RHREFHT:Reference height relative humidity ; SHFLX:Surface sensible heat flux ; SNOWHICE:Water equivalent snow depth ; SNOWHLND:Water equivalent snow depth ; SOLIN:Solar insolation ; SOLLD:Solar downward near infrared diffuse to surface ; SOLSD:Solar downward visible diffuse to surface ; SRFRAD:Net radiative flux at surface ; SWCF:Shortwave cloud forcing ; T:Temperature ; T1000:Temperature at 1000 mbar pressure surface ; T200:Temperature at 200 mbar pressure surface ; T500:Temperature at 500 mbar pressure surface ; T700:Temperature at 700 mbar pressure surface ; T850:Temperature at 850 mbar pressure surface ; TAUX:Zonal surface stress ; TAUY:Meridional surface stress ; TGCLDLWP:Total grid-box cloud liquid water path ; TMQ:Total (vertically integrated) precipitatable water ; TREFHT:Reference height temperature ; TS:Surface temperature (radiative) ; TSMN:Minimum surface temperature over output period ; TSMX:Maximum surface temperature over output period ; U:Zonal wind ; U10:10m wind speed ; U200:Zonal wind at 200 mbar pressure surface ; U850:Zonal wind at 850 mbar pressure surface ; V:Meridional wind ; V200:Meridional wind at 200 mbar pressure surface ; V850:Meridional wind at 850 mbar pressure surface ; Z050:Geopotential Z at 50 mbar pressure surface ; Z100:Geopotential Z at 100 mbar pressure surface ; Z200:Geopotential Z at 200 mbar pressure surface ; Z3:Geopotential Height (above sea level) ; Z300:Geopotential Z at 300 mbar pressure surface ; Z500:Geopotential Z at 500 mbar pressure surface ; Z700:Geopotential Z at 700 mbar pressure surface ; Source = MICOM ; Variables = time:time ; sigma:Potential density ; depth:z level ; sigmx:Mixed layer density ; ubaro:Barotropic velocity x-component ; vbaro:Barotropic velocity y-component ; sealv:Sea level ; fice:Ice concentration ; swa:Short-wave heat flux ; nsf:Non-solar heat flux ; hmltfz:Heat flux due to melting/freezing ; hflx:Heat flux received by ocean ; lip:Liquid precipitation ; sop:Solid precipitation ; eva:Evaporation ; fmltfz:Fresh water flux due to melting/freezing ; rnf:Liquid runoff ; rfi:Frozen runoff ; sflx:Salt flux received by ocean ; bflx:Brine flux ; ztx:Wind stress x-component ; mty:Wind stress y-component ; taux:Momentum flux received by ocean x-component ; tauy:Momentum flux received by ocean y-component ; ustar:Friction velocity ; abswnd:Absolute wind speed ; sfl:Salt flux ; mld:Mixed layer depth ; maxmld:Maximum mixed layer depth ; brnpd:Brine plume depth ; sst:Ocean surface temperature ; sss:Ocean surface salinity ; mxlu:Mixed layer velocity x-component ; mxlv:Mixed layer velocity y-component ; Source = CLM ; Variables = levgrnd:coordinate soil levels ; levlak:coordinate lake levels ; edgen:northern edge of surface grid ; edgee:eastern edge of surface grid ; edges:southern edge of surface grid ; edgew:western edge of surface grid ; time:time ; mcdate:current date (YYYYMMDD) ; mcsec:current seconds of current date ; mdcur:current day (from base day) ; mscur:current seconds of current day ; nstep:time step ; time_bounds:history time interval endpoints ; lon:coordinate longitude ; lat:coordinate latitude ; lonatm:atm coordinate longitude ; latatm:atm coordinate latitude ; lonrof:runoff coordinate longitude ; latrof:runoff coordinate latitude ; longxy:longitude ; latixy:latitude ; area:grid cell areas ; areaupsc:normalized grid cell areas related to upscaling ; topo:grid cell topography ; topodnsc:normalized grid cell topography related to downscaling ; landfrac:land fraction ; landmask:land/ocean mask (0.=ocean and 1.=land) ; pftmask:pft real/fake mask (0.=fake and 1.=real) ; indxupsc:upscaling atm global grid index ; longxyatm:atm longitude ; latixyatm:atm latitude ; areaatm:atm grid cell areas ; ZSOI:soil depth ; DZSOI:soil thickness ; WATSAT:saturated soil water content (porosity) ; SUCSAT:saturated soil matric potential ; BSW:slope of soil water retention curve ; HKSAT:saturated hydraulic conductivity ; FSNO:fraction of ground covered by snow ; SNOWDP:snow height ; SOILWATER_10CM:soil liquid water + ice in top 10cm of soil ; Source = CICE ; Variables = time:model time ; time_bounds:boundaries for time-averaging interval ; TLON:T grid center longitude ; TLAT:T grid center latitude ; ULON:U grid center longitude ; ULAT:U grid center latitude ; tarea:area of T grid cells ; ANGLE:angle grid makes with latitude line on U grid ; hi:grid cell mean ice thickness ; hs:grid cell mean snow thickness ; fs:grid cell mean snow fraction ; aice:ice area (aggregate) ; uvel:ice velocity (x) ; vvel:ice velocity (y) ; transix:ice mass transport (x) on East side ; transiy:ice mass transport (y) on North side ; congel:congelation ice growth ; frazil:frazil ice growth ; meltt:top ice melt ; meltb:basal ice melt ; meltl:lateral ice melt ; fresh_ai:freshwtr flx ice to ocn ; fsalt_ai:salt flux ice to ocean ; Scientific Publication: Jansen et al., 2020,Past perspectives on the present era of abrupt Arctic climate change, doi.org/10.1038/s41558-020-0860-7