terrestrial

The adjective terrestrial describes those methods , processes, data , systems, instruments , organisms or objects that:

refer to the planet earth ( Latin terra ) (terrestrial = earthly ; opposite: extraterrestrial ) or
are located on earth or take place there (terrestrial = earthbound) or
belong to the land area of the earth or to applications or processes that take place on land (and not in the air or on water) (terrestrial = land-based).

Examples

Terrestrial coordinate and reference systems (in contrast to astronomical systems, for example );
planetary and global properties belonging to the earth ( e.g. gravitational field , magnetism ...), geological processes and corresponding measurement data;
Earthly conditions in comparison or in relation to the sun , the moon , other planets etc.

terrestrial observatories (see also terrestrial telescope ), measuring instruments or processes (such as terrestrial navigation ) in contrast to those that are used in the air or space (e.g. satellite-based methods);
- data transmission via radio is called terrestrial if it does not use a satellite as an intermediate station (e.g. the T in DVB-T stands for “terrestrial”), see also terrestrial transmission and terrestrial television .
- terrestrial forest inventory: tree circumference is measured; the degree of foliage in the treetops estimated from the ground up.

land-based transportation , weapon systems , etc.
Animals , plants and other organisms (see also shore leave (biology) ) as well as geological deposition areas on land - in contrast to those in water ( aquatic , aquatic), e.g. in the ocean ( marine ) or in inland waters ( limnic , fluvial );
- in the case of plants, only those species are considered terrestrial that are rooted directly in the ground and do not grow on rocks, other plants, etc.