nonweather

Nonweather is a provisional or informal label used to describe phenomena or data that are not weather in the meteorological sense. In common meteorology, weather refers to atmospheric conditions such as temperature, humidity, precipitation, wind, and visibility. Nonweather, by contrast, is used to categorize things that lie outside that domain or that are not caused by atmospheric processes.

Usage: The term appears in data classification, documentation, and some interdisciplinary studies where researchers separate weather-related observations from other environmental or systemic events. It is not a standardized term and its exact scope can vary by project.

Examples: Nonweather could include seismic events (earthquakes and related ground motions), volcanic eruptions not driven by weather, solar or geomagnetic activity (space weather) when considered outside the Earth's atmosphere, and metadata or instrumentation events such as sensor outages or calibration campaigns.

Limitations: Because nonweather is informal and context-dependent, its meaning can be ambiguous. In formal meteorology and climate science, it is usually better to use precise categories (geophysical events, space weather, instrument data, etc.).

See also: Weather, Meteorology, Space weather, Geophysics, Data labeling.