This is the 2250th most frequent Japanese word.
観測
Observation.
Here, '観測' refers to the act of systematically gathering and recording data or observations related to weather or atmospheric conditions.
気象学で、観測データは非常に重要です。
In meteorology, observation data is very important.
In this sentence, '観測' is used to describe the act of observing a celestial object using instruments or tools in astronomy.
天文学者たちは新しい星を観測しました。
The astronomers observed a new star.
This usage of '観測' indicates the detailed observation or monitoring of environmental factors or situations to gather important information.