Natural phenomenon

As a natural phenomenon or natural event which people are appearing , so sensuously tangible , d. H. indicates conspicuous or measurable natural events that are due to natural causes. In its denotative meaning, the term is used less in a cultural context .

In contrast, there are anthropogenically triggered phenomena that can be traced back directly or indirectly to human activities.

Important groups of natural phenomena are:

Celestial phenomena of all kinds such as objects and movements in the starry sky , its changes such as novae or changeable , surprising phenomena such as comets or falling stars - see also Astronomical Phenomenology
meteorological and hydrological phenomena such as climate - and weather phenomena, thunderstorms , strong winds (storms), heavy rain , snow , hail , lightning and thunder , objects of observation as air pressure and - temperature , including phenomena of atmospheric optics, such as rainbow , halo , glowing Night clouds , dusk , evening and dawn , midnight sun , polar lights
geological and other geoscientific processes such as tectonics , earthquakes , volcanism , crevice and mountain formation , erosion and its diverse manifestations, karst , runoff phenomena , avalanches , landslides , landslides, etc.
biological observations such as migration and distribution of populations , reproduction or extinction , phenomena of ecology and reactions of the environment , etc.
microbiological phenomena such as soil fauna , changes in the occurrence of bacteria and microbes , water ecology , etc. v. m.

Energy and atomic physics : phenomena resulting from celestial and solar radiation , formation of deposits , decay of radioactive nuclides

Individual evidence

Sources: Brockhaus , Kertz: Geophysik