1.
observation, monitoring
Systematic watching and recording of natural phenomena, especially in scientific contexts.
観測 is used for scientific observation, especially of natural phenomena.
Common collocations:
- 天体観測 (astronomical observation)
- 気象観測 (weather observation)
- 地震観測 (earthquake monitoring)
- 観測所/観測点 (observation station/point)
- 観測データ (observation data)
Related terms:
- 観察 (observation - more general, often visual)
- 測定 (measurement)
- モニタリング (monitoring - loanword)