The reanalysis is generated by Norwegian Climate Prediction Model (NorCPM, Counillon et al. 2014). NorCPM is a climate prediction system developed for seasonal-to-decadal climate predictions and long-term reanalyses. It combines the Norwegian Earth system model (NorESM, Bentsen et al. 2013) and the ensemble Kalman filter (Evensen 2003). The reanalysis consists of 30 ensemble members and covers the period of 1980–2010, in which anomaly assimilation of SST and T-S profile (Counillon et al. 2016; Wang et al. 2017) is used. Monthly SST data from Hadley Centre Sea Ice and Sea Surface Temperature dataset version 2.1 (HadISST2.1.0.0) and observed subsurface ocean temperature and salinity profiles are taken from the EN4 dataset (version EN.4.2.1, Good et al., 2013). The climatology defined for the anomaly assimilation is cover the period 1980–2010. The ocean component of NorCPM is updated at the assimilation step; the other components are dynamically adjusted during the system integration after the assimilation step. Data description: case = ana_19800115_me ; Members 01-30; 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 ; 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 ; LHFLX:Surface latent heat flux ; 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 ; 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 ; RELH:Fictive 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 ; SRFRAD:Net radiative flux at surface ; SST:sea surface temperature ; 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 ; 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 ; sealv:Sea level ; fice:Ice concentration ; mld:Mixed layer depth ; maxmld:Maximum mixed layer depth ; sst:Ocean surface temperature ; sss:Ocean surface salinity ; uflx2d:Mass flux in x-direction ; vflx2d:Mass flux in y-direction ; uhflx2d:Heat flux in x-direction ; vhflx2d:Heat flux in y-direction ; usflx2d:Salt flux in x-direction ; vsflx2d:Salt flux in y-direction ; templvl:Temperature ; salnlvl:Salinity ; 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 ; ACTUAL_IMMOB:actual N immobilization ; AGNPP:aboveground NPP ; ANN_FAREA_BURNED:annual total fractional area burned ; AR:autotrophic respiration (MR + GR) ; BGNPP:belowground NPP ; COL_CTRUNC:column-level sink for C truncation ; COL_FIRE_CLOSS:total column-level fire C loss ; COL_FIRE_NLOSS:total column-level fire N loss ; COL_NTRUNC:column-level sink for N truncation ; CPOOL:temporary photosynthate C pool ; CWDC:coarse woody debris C ; CWDC_HR:coarse woody debris C heterotrophic respiration ; CWDC_LOSS:coarse woody debris C loss ; CWDN:coarse woody debris N ; DEADCROOTC:dead coarse root C ; DEADCROOTN:dead coarse root N ; DEADSTEMC:dead stem C ; DEADSTEMN:dead stem N ; DENIT:total rate of denitrification ; DISPVEGC:displayed veg carbon, excluding storage and cpool ; DISPVEGN:displayed vegetation nitrogen ; DWT_CLOSS:total carbon loss from land cover conversion ; DWT_CONV_CFLUX:conversion C flux (immediate loss to atm) ; DWT_CONV_NFLUX:conversion N flux (immediate loss to atm) ; DWT_NLOSS:total nitrogen loss from landcover conversion ; DWT_PROD100C_GAIN:landcover change-driven addition to 100-yr wood product pool ; DWT_PROD100N_GAIN:addition to 100-yr wood product pool ; DWT_PROD10C_GAIN:landcover change-driven addition to 10-yr wood product pool ; DWT_PROD10N_GAIN:addition to 10-yr wood product pool ; DWT_SEEDC_TO_DEADSTEM:seed source to PFT-level deadstem ; DWT_SEEDC_TO_LEAF:seed source to PFT-level leaf ; DWT_SEEDN_TO_DEADSTEM:seed source to PFT-level deadstem ; DWT_SEEDN_TO_LEAF:seed source to PFT-level leaf ; ER:total ecosystem respiration, autotrophic + heterotrophic ; FIRESEASONL:annual fire season length ; FPG:fraction of potential gpp ; FPI:fraction of potential immobilization ; FROOTC:fine root C ; FROOTC_ALLOC:fine root C allocation ; FROOTC_LOSS:fine root C loss ; FROOTN:fine root N ; FSNO:fraction of ground covered by snow ; GPP:gross primary production ; GR:total growth respiration ; GROSS_NMIN:gross rate of N mineralization ; HR:total heterotrophic respiration ; HTOP:canopy top ; LAND_UPTAKE:NEE minus LAND_USE_FLUX, negative for update ; LAND_USE_FLUX:total C emitted from land cover conversion and wood product pools ; LEAFC:leaf C ; LEAFC_ALLOC:leaf C allocation ; LEAFC_LOSS:leaf C loss ; LEAFN:leaf N ; LITFALL:litterfall (leaves and fine roots) ; LITHR:litter heterotrophic respiration ; LITR1C:litter labile C ; LITR1C_TO_SOIL1C:decomp. of litter 1 C to SOM 1 C ; LITR1N:litter labile N ; LITR2C:litter cellulose C ; LITR2C_TO_SOIL2C:decomp. of litter 2 C to SOM 2 C ; LITR2N:litter cellulose N ; LITR3C:litter lignin C ; LITR3C_TO_SOIL3C:decomp. of litter 3 C to SOM 3 C ; LITR3N:litter lignin N ; LITTERC:litter C ; LITTERC_HR:litter C heterotrophic respiration ; LITTERC_LOSS:litter C loss ; LIVECROOTC:live coarse root C ; LIVECROOTN:live coarse root N ; LIVESTEMC:live stem C ; LIVESTEMN:live stem N ; MEAN_FIRE_PROB:e-folding mean of daily fire probability ; MR:maintenance respiration ; NBP:net biome production, includes fire, landuse, and harvest flux, positive for sink ; NDEPLOY:total N deployed in new growth ; NDEP_TO_SMINN:atmospheric N deposition to soil mineral N ; NEE:net ecosystem exchange of carbon, includes fire, landuse, harvest, and hrv_xsmrpool flux, positive for source ; NEP:net ecosystem production, excludes fire, landuse, and harvest flux, positive for sink ; NET_NMIN:net rate of N mineralization ; NFIX_TO_SMINN:symbiotic/asymbiotic N fixation to soil mineral N ; NPP:net primary production ; PFT_CTRUNC:pft-level sink for C truncation ; PFT_FIRE_CLOSS:total pft-level fire C loss ; PFT_FIRE_NLOSS:total pft-level fire N loss ; PFT_NTRUNC:pft-level sink for N truncation ; PLANT_NDEMAND:N flux required to support initial GPP ; POTENTIAL_IMMOB:potential N immobilization ; PROD100C:100-yr wood product C ; PROD100C_LOSS:loss from 100-yr wood product pool ; PROD100N:100-yr wood product N ; PROD100N_LOSS:loss from 100-yr wood product pool ; PROD10C:10-yr wood product C ; PROD10C_LOSS:loss from 10-yr wood product pool ; PROD10N:10-yr wood product N ; PROD10N_LOSS:loss from 10-yr wood product pool ; PRODUCT_CLOSS:total carbon loss from wood product pools ; PRODUCT_NLOSS:total N loss from wood product pools ; PSNSHA:shaded leaf photosynthesis ; PSNSHADE_TO_CPOOL:C fixation from shaded canopy ; PSNSUN:sunlit leaf photosynthesis ; PSNSUN_TO_CPOOL:C fixation from sunlit canopy ; RETRANSN:plant pool of retranslocated N ; RETRANSN_TO_NPOOL:deployment of retranslocated N ; RR:root respiration (fine root MR + total root GR) ; SEEDC:pool for seeding new PFTs ; SEEDN:pool for seeding new PFTs ; SMINN:soil mineral N ; SMINN_LEACHED:soil mineral N pool loss to leaching ; SMINN_TO_NPOOL:deployment of soil mineral N uptake ; SMINN_TO_PLANT:plant uptake of soil mineral N ; SNOWDP:snow height ; SOIL1C:soil organic matter C (fast pool) ; SOIL1N:soil organic matter N (fast pool) ; SOIL2C:soil organic matter C (medium pool) ; SOIL2N:soil organic matter N (medium pool) ; SOIL3C:soil organic matter C (slow pool) ; SOIL3N:soil orgainc matter N (slow pool) ; SOIL4C:soil organic matter C (slowest pool) ; SOIL4N:soil orgainc matter N (slowest pool) ; SOILC:soil C ; SOILC_HR:soil C heterotrophic respiration ; SOILC_LOSS:soil C loss ; SOILPSI:soil water potential in each soil layer ; SOILWATER_10CM:soil liquid water + ice in top 10cm of soil ; SOMHR:soil organic matter heterotrophic respiration ; SR:total soil respiration (HR + root resp) ; STORVEGC:stored vegetation carbon, excluding cpool ; STORVEGN:stored vegetation nitrogen ; SUPPLEMENT_TO_SMINN:supplemental N supply ; TOTCOLC:total column carbon, incl veg and cpool ; TOTCOLN:total column-level N ; TOTECOSYSC:total ecosystem carbon, incl veg but excl cpool ; TOTECOSYSN:total ecosystem N ; TOTLITC:total litter carbon ; TOTLITN:total litter N ; TOTPFTC:total pft-level carbon, including cpool ; TOTPFTN:total PFT-level nitrogen ; TOTPRODC:total wood product C ; TOTPRODN:total wood product N ; TOTSOMC:total soil organic matter carbon ; TOTSOMN:total soil organic matter N ; TOTVEGC:total vegetation carbon, excluding cpool ; TOTVEGN:total vegetation nitrogen ; WOODC:wood C ; WOODC_ALLOC:wood C allocation ; WOODC_LOSS:wood C loss ; WOOD_HARVESTC:wood harvest (to product pools) ; WOOD_HARVESTN:wood harvest (to product pools) ; XSMRPOOL:temporary photosynthate C pool ; XSMRPOOL_RECOVER:C flux assigned to recovery of negative xsmrpool ; 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 ;