An overview of cloud–radiation denial experiments for the Energy Exascale Earth System Model version 1

The interaction between clouds and radiation is a key process within the climate system, and assessing the impacts of that interaction provides valuable insights into both the present-day climate and future projections. Many modeling experiments have been designed over the years to probe the impact of the cloud radiative effect (CRE) on the climate, including those that seek to disrupt the mean CRE effect and those that only disrupt the covariance of the CRE with the circulation. Seven such experimental designs have been added to the Energy Exascale Earth System Model version 1 (E3SMv1) of the US Department of Energy. These experiments include both the first and second iterations of the Clouds On/Off Klimate Intercomparison Experiment (COOKIE) experimental design, as well as the cloud-locking method. This paper documents the code changes necessary to implement such experiments and also provides detailed instructions for how to run them. Analyses across experiment types provide valuable insights and confirm the findings of prior studies, including the role of cloud radiative heating toward intensifying the monsoon, intensifying rain rates, and poleward expansion of the general circulation owing to cloud feedbacks.

To Access Resource:

Questions? Email Resource Support Contact:

  • opensky@ucar.edu
    UCAR/NCAR - Library

Resource Type publication
Temporal Range Begin N/A
Temporal Range End N/A
Temporal Resolution N/A
Bounding Box North Lat N/A
Bounding Box South Lat N/A
Bounding Box West Long N/A
Bounding Box East Long N/A
Spatial Representation N/A
Spatial Resolution N/A
Related Links

Related Other #1 : Figure making script for Overview of cloud-radiation denial in E3SMv1

Related Software #1 : Energy Exascale Earth System Model v1.0

Related Software #2 : beharrop/E3SM: CRE experiment v1.0.0

Related Software #3 : nco/nco: Sea Shanty

Related Software #4 : E3SM-Project/e3sm_diags: v2.7.0

Related Software #5 : Template scripts for Overview of cloud-radiation denial in E3SMv1

Additional Information N/A
Resource Format PDF
Standardized Resource Format PDF
Asset Size N/A
Legal Constraints

Copyright author(s). This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.


Access Constraints None
Software Implementation Language N/A

Resource Support Name N/A
Resource Support Email opensky@ucar.edu
Resource Support Organization UCAR/NCAR - Library
Distributor N/A
Metadata Contact Name N/A
Metadata Contact Email opensky@ucar.edu
Metadata Contact Organization UCAR/NCAR - Library

Author Harrop, B. E.
Lu, J.
Leung, L. R.
Lau, W. K. M.
Kim, K.
Medeiros, Brian
Soden, B. J.
Vecchi, G. A.
Zhang, B.
Singh, B.
Publisher UCAR/NCAR - Library
Publication Date 2024-04-23T00:00:00
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier N/A
Resource Version N/A
Topic Category geoscientificInformation
Progress N/A
Metadata Date 2025-07-10T20:02:45.500206
Metadata Record Identifier edu.ucar.opensky::articles:27179
Metadata Language eng; USA
Suggested Citation Harrop, B. E., Lu, J., Leung, L. R., Lau, W. K. M., Kim, K., Medeiros, Brian, Soden, B. J., Vecchi, G. A., Zhang, B., Singh, B.. (2024). An overview of cloud–radiation denial experiments for the Energy Exascale Earth System Model version 1. UCAR/NCAR - Library. https://n2t.org/ark:/85065/d7m90dv0. Accessed 03 August 2025.

Harvest Source