also: スピーディ
noun
System for Prediction of Environmental Emergency Dose Information; SPEEDI
A Japanese government system for predicting the spread of radioactive materials in the event of a nuclear accident. Used in disaster management and environmental monitoring contexts.
原子力事故が発生した場合、緊急時環境線量情報予測システムが放射性物質の拡散を予測します。
In the event of a nuclear accident, the System for Prediction of Environmental Emergency Dose Information predicts the dispersion of radioactive materials.
SPEEDIのデータは避難計画の策定に活用される。
SPEEDI data is used in formulating evacuation plans.
A compound of 緊急時 (emergency), 環境 (environment), 線量 (radiation dose), 情報 (information), 予測 (prediction), and システム (system). The acronym SPEEDI is derived from the English name.