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Extreme Heat - Monthly Summary, Global (v1.0)


This is a global dataset capturing the rate of actual extreme heat events at a monthly timescale.

heat, global, thermal, hazard, risk, stress, summary, monthly, temperature
Temporal Extent:
11 km
Product Version:

Technical Description

The Extreme Heat Monthly Summary product provides valuable insights into the frequency of extreme heat actuals across the globe at a monthly timescale. This product seek to identify global areas where heat conditions may have presented risks to human health, agriculture, water resources, and wildlife.

The product's severe_heat_frequency field is a human-centered metric built as a critical indicator of when it becomes too hot for humans to safely endure outdoor activities. It offers a straightforward and comparable measure across diverse locations, making it a valuable tool for identifying areas with consistently high temperatures that may pose risks to human health.

The product's heat_anomaly_frequency field detects locations experiencing moderately high temperatures that are concurrently above the normal conditions for that area. It considers regional acclimatization and ensures an absolute baseline for classifying extreme heat events.

Together, these indices contribute to a comprehensive evaluation of extreme heat events, considering both absolute thresholds for human safety and anomalies in temperature patterns relative to regional norms.

This dataset contains the following fields:

  • severe_heat_frequency: Rate of days/month (between 0-1) with a mean heat index in or above the USNWS 'Danger' threshold (>103F, 40C).
  • heat_anomaly_frequency: Rate of days/month (between 0-1) where the mean daily heat index is in or above the USNWS "Caution" threshold (>80F, > 26.7°C) AND above the 95th baseline percentile HI for that location.