DOI: 10.5281/zenodo.3967597
title: CORE inter-annual forced ocean ice simulation using E3SMv0-HiLAT-tx0.3v2 (HiLAT03)

description: This data set supports the analysis presented in the manuscript: “Labrador Sea freshening linked to Beaufort Gyre freshwater release” (LA-UR-20-20936), which is under review for publication by Nature Communications. The model output is from a 186-year long simulation with the E3SMv0-HiLAT code that was described in the technical report: “An eddy-permitting ocean-sea ice general circulation model (E3SMv0-HiLAT03): Description and evaluation” (LA-UR-19-25177; doi: 10.2172/1542803), by Zhang et al.. The ocean and sea ice components are active, and their grid is configured with a nominal 0.3 degree horizontal resolution. The model is forced by an atmospheric data set that represents the atmospheric state from 1948 through 2009, and is repeated for 3 cycles. #----------------------------------------------------------------------------------------------------------<br> # Data description<br> # Fri Jul 24 16:55:12 MDT 2020<br> # Contacts: Jiaxu Zhang (jiaxuzh@uw.edu) and Wilbert Weijer (wilbert@lanl.gov)<br> #----------------------------------------------------------------------------------------------------------<br> Simulation length: 186 years<br> Simulation machine: LANL HPC facility, on Grizzly<br> Case name: t32_GIAF_woa13rest_deepenNares_Griz<br> Time range: 012101-018612 (corresponding to Jan 1948 to Dec 2009)<br> Grid file: gridFile/tx0.3v2_grid.nc<br> In the post-processed files:<br> pop = ocean output from POP2<br> mon = monthly<br> ann = annual mean<br> clim = monthly climatology<br> ltm = long-term annual mean<br> dec = decadal mean<br> YYYYMM-YYYYMM = time range<br> FastRel = Fast release case, corresponding to the 016001-017212 period<br> FastAcc = Fast accumulation case, corresponding to the 017301-018512 period<br> NH = data only contain the Northern Hemisphere Similarly, there are files for "BG" (Beaufort Gyre), "Davis_Strait", "Fram_Strait", "Labrador_Sea", "Labrador_Sea_Outflow", "Lancaster_Sound", and "Nares_Strait". These regions are illustrated in Figure 1 of the manuscript. Variable names:<br> SALT = salinity<br> UES = East flux of SALT<br> UVEL = Zonal Velocity<br> VNS = North flux of SALT<br> VVEL = Meridional velocity<br> DYE01 = dye tracer that tags the Beaufort Gyre freshwater (from surface to the reference salinity of 34.6)<br> DSALT01 = salt tracer that tags the Beaufort Gyre salinity (from surface to the reference salinity of 34.6)<br> UE_DSALT01 = East flux of DSALT01<br> VN_DSALT01 = North flux of DSALT01 In the transport folder:<br> File names: transport.[StraitName].012101-018612.txt<br> Content: Diagnosed transport at a specific strait.<br> Structure: 4 columns are<br> 1. Model time (days since 0001-01)<br> 2. Volume transport (Sv)<br> 3. Heat transport (PW)<br> 4. Liquid freshwater transport (mSv)<br> For all the transports, positive is poleward, negative is equatorward. <br> File names: [CaseName].transport.BG_portion.[StraitName].txt<br> Content: Diagnosed BG-sourced transport at a specific strait for either FastRel or FastAcc case.<br> Structure: 8 columes are<br> 1. Model time (days since 0001-01)<br> 2. Volume transport (Sv)<br> 3. Liquid freshwater transport (mSv)<br> 4. Validation data, please ignore<br> 5. Validation data, please ignore<br> 6. Volume transport sourced from BG alone (Sv)<br> 7. Liquid freshwater transport sourced from BG alone (mSv)<br> 8. Validation data, please ignore