{
  "original_points": 38,
  "selected_points": 29,
  "background_fit_points": 11,
  "fit_depth_m": [
    200,
    300
  ],
  "intercept_degC": 7.989090909090907,
  "gradient_K_per_m": 0.03858181818181818,
  "gradient_K_per_km": 38.581818181818186,
  "at_50m": {
    "measured_degC": 11.17,
    "background_degC": 9.918181818181816,
    "anomaly_K": 1.2518181818181842
  },
  "scope": "OLS background and subsurface residuals only. No inversion of past surface temperatures."
}