Subseasonal reforecasts - climatology experiments

We repeated the standard CESM2(CAM6) subseasonal reforecast set using climatological initial conditions for different components.

 

  • climoATM (ie, climatological atmosphere, standard land, standard ocean)
  • climoLND
  • climoOCN
  • climoOCNclimoLND (ie, standard atmosphere, climatological land, climatological ocean)
  • climoOCNclimoATM
  • climoATMclimoLND
  • climoALL (ie, climatological atmosphere, climatological land, climatological ocean)

Subseasonal Reforecasts & Forecasts with CESM2(CAM6)

  • Reforecasts initialized every Monday between 1999 to 2020
  • 45-day simulations
  • 11-member ensemble for reforecasts
  • Atmospheric initial conditions: CFSv2
  • Land initial conditions: CLM2 spun up with CFSv2
  • Ocean initial conditions: JRA-55 forced ocean/sea-ice
  • 11-member ensemble for forecasts
  • Data availability on Climate Data Gateway & DOI: https://doi.org/10.5065/0s63-m767 (click on CESM2 S2S Climo Studies)
  • Data availability on NCAR’s campaign storage (accessible from Casper) /glade/campaign/cesm/development/cross-wg/S2S/CESM2/S2SHINDCASTSclimo* (see 7 "climo" experiments available)

Output from the simulations is extensive and includes SubX priority 1, 2, 3 variables, additional 6-hourly, and daily output of other 2-dimensional variables, and 3-dimensional output of selected fields. A complete output list can be found in Tables S1-S7 of the Supplement to Richter et al. (2021).

Richter, J. H. , A. A. Glanville, J. Edwards, B. Kauffman, N. A. Davis, A. Jaye, N. M. Pedatella, L. Sun, J. Berner, W. M. Kim, S. G. Yeager, G. Danabasoglu, J. M. Caron, and K. W. Oleson (2021): “A subseasonal Earth System Prediction with CESM2”, Weather & Forecasting, 37(6), 797-815, https://journals.ametsoc.org/view/journals/wefo/37/6/WAF-D-21-0163.1.xml

Project Lead

Collaboration & Acknowledgement

We welcome collaborations! We would appreciate you letting us know that you’re using this dataset by emailing jrichter@ucar.edu to add your name to the Subseasonal-CESM2 Analysis registry.

When presenting results based on the above datasets in either oral or written form, please acknowledge the appropriate dataset DOIs (CESM2(CAM6): https://doi.org/10.5065/0s63-m767; CESM2(WACCM6): https://doi.org/10.5065/ekns-e430) as well as the Richter et al. (2022) dataset description.

Related Publications

Richter, J., Glanville, A. A., King, T., Kumar, S., Yeager, S., Davis, N. A., Duan, Y., Fowler, M., Jaye, A. B., Edwards, J., Caron, J., Dirmeyer, P. A., Danabasoglu, G., & Oleson, K. W. (2024). Quantifying sources of subseasonal prediction skill in CESM2. Npj Climate and Atmospheric Science, 7, Article 59. https://doi.org/10.1038/s41612-024-00595-4