Datasets

Overview Global Datasets Regional Datasets Upcoming Releases

 

Overview

iHESP is focused on high-resolution, coupled climate simulations spanning the entire globe and regionally downscaled simulations of a region of interest (ex: Gulf of Mexico). Our global climate datasets have been generated using a high‐resolution configuration of the Community Earth System Model version 1.3 (CESM1.3), with a nominal horizontal resolution of 0.25° for the atmosphere and land models and 0.1° for the ocean and sea‐ice models. At these resolutions, the model permits tropical cyclones and ocean mesoscale eddies, allowing interactions between these synoptic and mesoscale phenomena with large‐scale circulations.

Regional datasets consist of model output from high-resolution simulations using coupled regional climate model R-CESM (Regional CESM). R-CESM couples the ocean model ROMS (Regional Ocean Modelling System) with the atmospheric model WRF (Weather Research and Forecast model) using the CESM/CIME coupling infrastructure. This dataset include standard variables from both ROMS and WRF at selected time interval on their native horizontal and vertical grid.

 

Global Datasets

The following global climate datasets will be made publicly available through iHESP in several staged releases. The first increment of data release (release date: 8th June, 2020) included the data from the CESM-HighResMIP control and transient simulations and data from the first 310 years of the 500-year pre-industrial control simulation forced by perpetual 1850 conditions. The second increment (release date: 12th June, 2021) consists of the remaining 190-years of the 1850 pre-industrial control simulation and 250 years of transient (historical and future) climate simulation for the 1850-2100 period.

CESM-HighResMIP

This set contains data from the 1950-control and the accompanying transient climate simulations that follow the HighResMIP protocol. 

  • The 1950-control simulation is forced by perpetual 1950 Greenhouse Gas (GHG) emissions for 130 years.
  • The transient climate simulation is forced by observed GHG emissions from 1950 to 2005 and then by projected GHG emissions from 2006 to 2050 based on the Representative Concentration Pathway 8.5 (RCP8.5) scenario.

Both the high-resolution (HR) and low-resolution (LR) version of these datasets have been published on Earth Systems Grid Federation (ESGF) portal with the help of NCAR's ESGF Data Node. The HR version of this collection can be obtained from ESGF using this link. And the LR version can be obtained here. 

CESM-HE (present and future climate simulations)

This collection contains several different simulations:

  • A 500-year, pre-industrial control simulation forced by perpetual 1850 conditions, performed on the Chinese HPC system. This dataset is publicly available via the Texas A&M Datahub portal. The first 310 years of this dataset are also available through the QNLM data release portal.
  • 250 years of transient (historical and future) climate simulation for the 1850-2100 period. The future (2005-2100) period of the latter simulation again uses the RCP8.5 scenario. This dataset is publicly available via the Texas A&M Datahub portal.
  • Ensemble of 5-10 present and future climate simulations with observed and projected climate forcing from 1920 to 2050.

CESM-DP-HE

  • 60-year simulation from 1958 to 2018 of the high-resolution ocean-ice model forced by the JRA55-do dataset (a modified version of the JRA-55 atmospheric reanalysis dataset designed for ocean and sea-ice modelling).
  • Ensemble of decadal climate predictions at ocean-mesoscale-eddy resolving and TC-permitting resolution for about 2000 model years.

 

Regional Datasets

The following regional climate/weather datasets will be made publicly available through iHESP in several staged releases:

R-CESM_GOM01 

This dataset contains R-CESM model output from the Gulf of Mexico configuration for the 2010-2018 period. The horizontal resolutions of R-CESM’s ocean and atmospheric components are 3 and 9 km, respectively. Data from Copernicus reanalysis (from E.U. Copernicus Marine Service Information) has been used for ROMS initial and boundary conditions. WRF initial and boundary conditions are from NCEP CFSR and CFSv2. Monthly mean data for the model fields are expected to be available in March, 2021.

R-CESM_GOM_DA01 

This dataset contains the analysis of R-CESM model with data assimilation of satellite and in-situ oceanic observations for the Gulf of Mexico during the 2010-2018 period. Similar to R-CESM_GOM01, the horizontal resolutions of the ocean and atmospheric grids are 3 km and 9 km, respectively; the boundary conditions for ROMS and WRF are from Copernicus reanalysis and NCEP CFSR and CFSv2, respectively. Monthly mean data for the model fields are expected to be available at end of 2021.