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高高度放電発光 (こうこうどほうでんはっこう) Japanese meaning | Kotomora

高こう高こう度ど放ほう電でん発はっ光こう

Meanings

1

noun

transient luminous event

Technical term in atmospheric physics for brief optical phenomena above thunderstorms, such as sprites, elves, and blue jets.

高こう高こう度ど放ほう電でん発はっ光こうは雷らい雲うんの上じょう空くうで観かん測そくされる。
Transient luminous events are observed above thunderclouds.
スプライトは高こう高こう度ど放ほう電でん発はっ光こうの一いっ種しゅである。
Sprites are a type of transient luminous event.

Written forms

高こう高こう度ど放ほう電でん発はっ光こう
Standard kanji spelling for this technical term.
高こう々こう度ど放ほう電でん発はっ光こう
Variant spelling using 々 for repetition; less common but still seen in technical contexts.

Kanji

高tall, high, expensive
度

degrees, occurrence, time

放set free, release, fire

電electricity

発departure, discharge, publish

光ray, light

Similar words

スプライト
A specific type of transient luminous event; 高高度放電発光 is the broader category.
雷かみなり放ほう電でん
Refers to lightning discharge in general, not specifically the high-altitude optical phenomena.

Etymology

Compound of 高高度 (high altitude), 放電 (electric discharge), and 発光 (luminescence). The term is a direct translation of the English 'transient luminous event' and is used primarily in scientific literature.