{
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  "rows": 100000000,
  "stations": 1000,
  "hours_per_station": 100000,
  "timezone": "Asia/Kolkata",
  "seed": 20260917,
  "observation_mask_bits": {
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    "1": "relative_humidity_pct",
    "2": "wind_speed_ms",
    "3": "rainfall_mm",
    "4": "pm25_ugm3",
    "5": "pm10_ugm3",
    "6": "no2_ugm3",
    "7": "co_mgm3",
    "8": "so2_ugm3",
    "9": "o3_ugm3"
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    "2": "lockdown_regime",
    "3": "cyclone_regime",
    "4": "heatwave_state"
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}