WeatherArb calculates Z-Score, HDD and CDD against the NASA POWER 25-year baseline for Sendai (38.27°N, 140.87°E). EN ISO 15927 standard.
Cos'è lo Z-Score climatico?
Misura quante deviazioni standard la temperatura attuale di Sendai si allontana dalla media storica dello stesso mese. Sopra +2σ indica caldo anomalo raro; sotto -2σ indica freddo anomalo.
Cosa sono HDD e CDD?
Heating e Cooling Degree Days, standard EN ISO 15927, misurano la domanda energetica per riscaldamento/raffrescamento confrontando la temperatura con una soglia di 18°C.
Con quale frequenza si aggiornano i dati di Sendai?
WeatherArb aggiorna i dati meteo di Sendai ogni ora tramite MET Norway, NOAA NWS e WeatherAPI.
Weather Sendai Today — Temperature and Climate Anomalies
WeatherArb monitors current temperature in Sendai against the NASA POWER 25-year climate baseline. When an extreme heat event, unusual rainfall or cold snap occurs, the Z-Score is automatically updated.
Humidity, wind speed and feels-like temperature in Sendai are updated hourly. During heatwave conditions (July: elevated heat anomaly risk), the anomaly level rises to EXTREME or CRITICAL — a statistically rare climate event.
Seismic Risk Sendai — High Seismic Risk
Sendai is one of the world's most seismically active countries, with thousands of earthquakes per year. Located at the junction of four tectonic plates (Pacific, Eurasian, North American, Philippine). WeatherArb integrates real-time climate anomaly monitoring with USGS seismic data to provide a comprehensive view of natural risk factors affecting agriculture, infrastructure and public safety.