In person at three hubs
CLIVAR CMIP7 Hackathon
A three-day, in-person hackathon analyzing how the new generation of CMIP7 models represents historical trends and multidecadal variability, held at hubs in Boulder, Taipei, and Tokyo.
- When
- January 6–8, 2027
- Where
- Boulder · Taipei · Tokyo
- Apply by
- October 24th, 2026
Supported by
About
CMIP7 offers a new opportunity to confront Earth system models with observations over an extended historical period with realistic external forcings. This hackathon will analyze CMIP7 simulations that are available in early 2027, examining how well this new generation of models with updated forcings represents historical trends and multidecadal variability.
The aim is to understand the relative roles of forced change and internally generated variability in historical trends, identify the physical processes involved, and assess the ability of CMIP models to reproduce them. The ultimate goal is to spur research towards focused publications ahead of the IPCC AR7 deadline (March 15, 2027).
The hackathon will consist of some lectures and tutorials on CMIP data analysis with the majority of the time spent hacking.
Locations
The hackathon runs in person at three hubs over the same three days.
Taipei
Department of Atmospheric Sciences, National Taiwan University
Taiwan
Venue details coming soon.
Apply
Participation is by application, and applications are due October 24th, 2026 and notification will be received in late October / early November. The hackathon is open to all career stages.
Capacity at each hub is limited, and a limited amount of travel support is available for the Boulder node thanks to Spark Climate Solutions and the CMIP IPO and funding sources are currently being sought for the other nodes. Priority for travel support will be given to early-career researchers (within 10 years of PhD).
If we receive more applications than places, or more requests for travel support than funding available, we will select participants based on career stage and the relevance of their interests and proposed research to the hackathon goals.
Apply to the relevant node using the links above.
Schedule
The schedule is still under development and will be posted here.
FAQ
Who can apply?
The hackathon is open to all career stages. Priority for travel support will be given to early-career researchers (within 10 years of PhD).
When is the application deadline?
October 24th, 2026.
How are participants selected?
Capacity at each hub is limited. If we receive more applications than places, we will select participants based on career stage and the relevance of their interests and proposed research to the hackathon goals.
Is travel support available?
A limited amount of travel support is available thanks to Spark Climate Solutions and the CMIP IPO. Priority will be given to early-career researchers (within 10 years of PhD). If requests exceed available funding, support will be allocated using the same criteria as participant selection.
Organizers
The hackathon is organized by the CLIVAR CEMT-MV Research Focus.
Organizing contacts
Boulder
- Isla Simpson islas@ucar.edu
- Tiffany Shaw tas1@uchicago.edu
Taipei
- Yen-Ting Hwang ythwang@ntu.edu.tw
- Wei-Liang Lee leelupin@as.edu.tw
- Min-Hui Lo minhuilo@ntu.edu.tw
Tokyo
- Yu Kosaka ykosaka@atmos.rcast.u-tokyo.ac.jp
Other organizing committee members
- Noel Keenlyside
- Malte Stuecker
- Will Chapman
- Leandro Diaz
- Lili Lei
- Karen McKinnon
- Stephen Po-Chedley
- Cristi Proistosescu
- Ryan Kramer