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Library Digital Collections

Data from: Diminished efficacy of regional marine cloud brightening in a warmer world

Component

Readme

File Size
  • 7.53 KB
File Format
  • Plain text
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MBC seeding mask

Subtropical

File Size
  • 5.08 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical Pacific seeding mask, 2% ocean area, rank by liquid cloud amount from CESM Large Ensemble 2 (LENS2) 2000-2009 climatology, Mar-Nov seeding. Forcing is imposed repeatedly each model year according to this MCB mask for the subtropical MCB simulations.

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Mid-latitude

File Size
  • 5.08 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude Pacific seeding mask, 2% ocean area, rank by liquid cloud amount from CESM Large Ensemble 2 (LENS2) 2000-2009 climatology, Mar-Nov seeding. Forcing is imposed repeatedly each model year according to this MCB mask for the mid-latitude MCB simulations.

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2050 monthly atmospheric (simulation years 56-85)

Control (no MCB)

File Size
  • 25.9 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2050 cyclical emissions, monthly atmospheric variables, simulation years 56-85

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Subtropical (MCB)

File Size
  • 25.9 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2050 cyclical emissions, monthly atmospheric variables, simulation years 56-85

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Mid-latitude (MCB)

File Size
  • 25.9 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2050 cyclical emissions, monthly atmospheric variables, simulation years 56-85

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2010 monthly atmospheric (simulation years 56-85)

Control (no MCB)

File Size
  • 25.9 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2010 cyclical emissions, monthly atmospheric variables, simulation years 56-85

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Subtropical (MCB)

File Size
  • 25.9 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2010 cyclical emissions, monthly atmospheric variables, simulation years 56-85

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Mid-latitude (MCB)

File Size
  • 25.9 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2010 cyclical emissions, daily atmospheric variables, simulation years 56-85

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2050 daily atmospheric (simulation years 56-85)

Control (no MCB)

File Size
  • 31.6 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2050 cyclical emissions, daily atmospheric variables, simulation years 56-85

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Subtropical (MCB)

File Size
  • 31.6 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2050 cyclical emissions, daily atmospheric variables, simulation years 56-85

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Mid-latitude (MCB)

File Size
  • 31.6 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2050 cyclical emissions, daily atmospheric variables, simulation years 56-85

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2010 daily atmospheric (simulation years 56-85)

Control (no MCB)

File Size
  • 31.6 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2010 cyclical emissions, daily atmospheric variables, simulation years 56-85

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Subtropical (MCB)

File Size
  • 31.6 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2010 cyclical emissions, daily atmospheric variables, simulation years 56-85

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Mid-latitude (MCB)

File Size
  • 31.6 GB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2010 cyclical emissions, daily atmospheric variables, simulation years 56-85

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2050 monthly ocean (simulation years 56-85)

Control (no MCB

File Size
  • 375 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2050 cyclical emissions, monthly ocean variables, simulation years 56-85

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Subtropical (MCB)

File Size
  • 375 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2050 cyclical emissions, monthly ocean variables, simulation years 56-85

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Mid-latitude (MCB)

File Size
  • 375 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2050 cyclical emissions, monthly ocean variables, simulation years 56-85

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2010 monthly ocean (simulation years 56-85)

Control (no MCB)

File Size
  • 375 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2010 cyclical emissions, monthly ocean variables, simulation years 56-85

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Subtropical (MCB)

File Size
  • 375 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2010 cyclical emissions, monthly ocean variables, simulation years 56-85

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Mid-latitude (MCB)

File Size
  • 375 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2010 cyclical emissions, monthly ocean variables, simulation years 56-85

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2050 monthly atmospheric transient (simulation years 55-85; MCB starts after 55 years of control branch spin up)

Control (no MCB)

File Size
  • 668 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2050 cyclical emissions, monthly atmospheric variables, simulation years 55-58

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Subtropical (MCB)

File Size
  • 668 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2050 cyclical emissions, monthly atmospheric variables, simulation years 55-58, MCB starts after 55 years of control branch spin up

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Mid-latitude (MCB)

File Size
  • 668 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2050 cyclical emissions, monthly atmospheric variables, simulation years 55-58, MCB starts after 55 years of control branch spin up

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2010 monthly atmospheric (simulation years 1-4)

Control (no MCB)

File Size
  • 668 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2010 cyclical emissions, monthly atmospheric variables, simulation years 1-4

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Subtropical (MCB)

File Size
  • 668 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2010 cyclical emissions, monthly atmospheric variables, simulation years 1-4

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Mid-latitude (MCB)

File Size
  • 668 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2010 cyclical emissions, monthly atmospheric variables, simulation years 1-4

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2050 monthly TREFHT (simulation years 1-85)

Control (no MCB)

File Size
  • 215 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2050 cyclical emissions, monthly reference height (2 m) temperature (TREFHT), simulation years 1-85

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Subtropical (MCB)

File Size
  • 215 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2050 cyclical emissions, monthly reference height (2 m) temperature (TREFHT), simulation years 1-85

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Mid-latitude (MCB)

File Size
  • 215 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2050 cyclical emissions, monthly reference height (2 m) temperature (TREFHT), simulation years 1-85

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2010 monthly TREFHT (simulation years 1-85)

Control (no MCB)

File Size
  • 215 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Control (no MCB) case, 2010 cyclical emissions, monthly reference height (2 m) temperature (TREFHT), simulation years 1-85

Download file View file Download file

Subtropical (MCB)

File Size
  • 215 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Subtropical MCB case, 2010 cyclical emissions, monthly reference height (2 m) temperature (TREFHT), simulation years 1-85

Download file View file Download file

Mid-latitude (MCB)

File Size
  • 210 MB
File Format
  • Hierarchical Data Format (version 5) data
Description

Mid-latitude MCB case, 2010 cyclical emissions, monthly reference height (2 m) temperature (TREFHT), simulation years 1-85

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Collection
Cite This Work

Wan, Jessica S.; Chen, Chih-Chieh-Jack; Tilmes, Simone; Luongo, Matthew T.; Richter, Jadwiga H.; Ricke, Katharine (2024). Data from: Diminished efficacy of regional marine cloud brightening in a warmer world. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0WW7HW0

Description

Marine cloud brightening (MCB) is a geoengineering proposal to cool atmospheric temperatures and reduce climate change impacts. As large-scale approaches to stabilize global mean temperatures pose governance challenges, regional interventions may be more attractive near term. Here, we investigate the efficacy of regional MCB in the North Pacific to mitigate extreme heat in the Western U.S. Under present-day conditions, we find MCB in the remote mid-latitudes or proximate subtropics reduces the relative risk of dangerous summer heat exposure by 55% and 16%, respectively. However, the same interventions under mid-century warming minimally reduce or even increase heat stress in the Western U.S. and across the world. This loss of efficacy may arise from a state-dependent response of the Atlantic Meridional Overturning Circulation to both anthropogenic warming and regional MCB. Our result demonstrates a risk in assuming that interventions effective under certain conditions will remain effective as the climate continues to change.

Creation Date
  • 2022-04 to 2023-12
Date Issued
  • 2024
Authors
Advisor
Technical Details

Model output generated using the Community Earth System Model (CESM) version 2.2: National Center for Atmospheric Research (NCAR), Boulder, CO, USA.
Data analysis conducted using Python version 3.8.2.

Required libraries to run Python code can be reproduced from the conda environment file: https://github.com/j4wan/wna-regional-mcb/blob/4ba41843fb508a0c30c2c8e53597539c932b7892/ncar-ecip-env.txt

Funding

National Center for Atmospheric Research Early Career Faculty Innovator Program Cooperative Agreement Number 1755088
National Defense Science and Engineering Graduate Fellowship Program.

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Topics

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Language
  • English
Identifier

Identifier: Chih-Chieh-Jack Chen: https://orcid.org/0000-0002-4819-2510

Identifier: Jadwiga H. Richter: https://orcid.org/0000-0001-7048-0781

Identifier: Jessica S. Wan: https://orcid.org/0000-0003-3757-6436

Identifier: Katharine Ricke: https://orcid.org/0000-0002-2780-7213

Identifier: Matthew T. Luongo: https://orcid.org/0000-0002-2996-7579

Identifier: Simone Tilmes: https://orcid.org/0000-0002-6557-3569

Related Resources

    Primary associated publication

    Source data

    • Center for International Earth Science Information Network - CIESIN - Columbia University. (2018): Gridded Population of the World, Version 4 (GPWv4): Population Count, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Accessed 21 October 2022. https://doi.org/10.7927/H4JW8BX5

    • Gao, J. (2020): Global 1-km Downscaled Population Base Year and Projection Grids Based on the Shared Socioeconomic Pathways, Revision 01. NASA Socioeconomic Data and Applications Center (SEDAC). Accessed 4 January 2023. https://doi.org/10.7927/q7z9-9r69

    • Hersbach, H., Bell, B., Berrisford, P., Biavati, G., Horányi, A., Muñoz Sabater, J., Nicolas, J., Peubey, C., Radu, R., Rozum, I., Schepers, D., Simmons, A., Soci, C., Dee, D., Thépaut, J-N. (2023): ERA5 monthly averaged data on single levels from 1940 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS). Accessed on 20 March 2023. https://doi.org/10.24381/cds.f17050d7

    • W. B. Rossow, A. Walker, V. Golea, K. R. Knapp, A. Young, A. Inamdar, B. Hankins, NOAA’s Climate Data Record Program, Climate Data Record Program (2016): International Satellite Cloud Climatology Project Climate Data Record, H-Series Basic HGM. NOAA Natl. Cent. Environ. Inf. Accessed 24 March 2023. https://doi.org/10.7289/V5QZ281S

    Software

    Previous version

    • Wan, Jessica S.; Chen, Chih-Chieh-Jack; Tilmes, Simone; Luongo, Matthew T.; Richter, Jadwiga H.; Ricke, Katharine. (2023). Data from: Unexpected failure of regional marine cloud brightening in a warmer world. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0HQ4036

License

Creative Commons Attribution 4.0 International Public License

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  • UC Regents
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Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp)

Last Modified

2024-07-11