Python Climate Predictability Tool (PyCPT)

An open-source Python interface that modernizes the Climate Predictability Tool (CPT), enabling automated statistical seasonal forecasting, forecast calibration, verification, and reproducible climate forecasting workflows.

Developer: International Research Institute for Climate and Society
Stage Of Maturity: Mature

Strengths

  • Open-source and freely available
  • Automates seasonal forecasting workflows
  • Reproducible analyses
  • Integrates with modern Python ecosystem
  • Easier workflow management than desktop CPT
  • Strong community support through IRI

Weaknesses

  • Requires Python programming skills
  • Not intended for non-technical users
  • No standalone web interface
  • Requires quality historical datasets

Synergies

  • Uses observational datasets managed through DataEx and WIS 2.0.
  • Produces seasonal forecasts that can be customized using FOCUS.
  • Complements modern forecasting workflows with XCAST and CPT.
  • Provides forecast inputs for downstream platforms including CST, SMART, and Agromet DSSs.