Python practice in Climate Modeling

Browse the rooms before signing in. Opening a room requires an account and follows your existing access. Practice does not issue certificates.

• Balance the Books

  The outreach exhibit needs the planet's energy ledger on one screen. Compute the absorbed sunlight per square meter from the solar constant and the albedo.

  energy-budget. Free room.

• Count the Doublings

  Express a supplied positive concentration as doublings relative to its stated baseline using log2(C/C0).

  co2-law. Free room.

• The CO2 Forcing

  A policy briefing needs the radiative forcing from a CO2 level. Apply the standard logarithmic formula relating concentration to the energy imbalance it drives.

  forcing. Free room.

• The Famous 255

  Compute an effective radiating temperature from supplied sunlight and planetary albedo. This is not a calculation of removing the atmosphere while retaining its clouds.

  effective. Free room.

• Amplifier Check

  Reviewers want the feedback math shown. Apply the gain formula and report what the feedbacks do to a 1.1 K Planck response.

  feedbacks. Account access required.

• One Pane of Glass

  The lecture demo: a single IR-opaque layer over the surface. Derive what it does to the surface temperature.

  one-layer. Account access required.

• The CO2 Meter

  Compute forcing from supplied illustrative CO2 concentrations. This exercise does not connect to a live measurement feed.

  co2-law. Account access required.

• The Sensitivity

  Compute equilibrium sensitivity from doubling forcing and a positive restoring coefficient, stating the parameter units.

  ecs. Account access required.

• The Long Carbon Tail

  Evaluate a multiscale carbon pulse response and explain its long tail. The constant term approximates slow removal over the model horizon.

  impulse. Account access required.

• The Honest Global Mean

  An intern averaged the grid without weights and announced record polar warming. Fix the global mean with cos-latitude weighting before it ships.

  weighting. Account access required.

• The Lagging Thermometer

  The minister asks why the thermometer trails the forcing. Compute the analytic step response of the one-box climate.

  transient. Account access required.

• The Temperature Anomaly

  Climate records report anomalies, not absolute temperatures. Compute how far the latest reading sits above the series' own baseline mean.

  analysis. Account access required.

• The Feedback Gain

  Compute the scalar linear feedback gain and identify its stable-response domain. Its singularity alone does not prove a physical runaway.

  feedback. Account access required.

• The Quiet Collapse

  Solve the thermal roots in the nondimensional Stommel model. Its fold is a mathematical model threshold, not a measured real-world AMOC safety boundary.

  stommel. Account access required.

• Trend or Noise

  Compute the stipulated AR(1) effective-sample-size approximation. This diagnostic alone does not establish whether an observed trend is significant.

  red-noise. Account access required.

• Two Earths

  The paleo team needs the bistability demo for the museum: settle the Budyko ice-albedo model from a warm start and a cold start, same Sun.

  ice-albedo. Account access required.

• Boot the Earth

  Compose annual carbon, forcing and two thermal-response modes. Report the toy trajectory and finite-horizon peak with explicit initial conditions.

  scenario-runner. Account access required.

• Budget Day

  Compute conditional carbon headroom using supplied temperature and TCRE values, with consistent baselines and carbon units.

  tcre. Account access required.

• The Carbon Budget

  Invert the illustrative TCRE relation using supplied assumptions. This result is not an assessed remaining carbon budget.

  tcre. Account access required.

• The Choice

  Two futures sit on the cabinet table: business as usual, or a 30-year phase-out. Run both through the full model and quantify what ambition buys in degrees.

  scenario-runner. Account access required.