telemetry
316
erally unrelated to associated geologic formations. They are believed to be
of extraterrestrial origin or the product of meteorite impacts on terrestrial
rocks.
telemetry distant measuring of environmental or biological variables, by applying radio electrical techniques. The remote monitoring by a transmitter of
the whereabouts of an animal is termed radio tracking and remote monitoring of its behavior or physiology (e.g., posture, heart rate, deep body temperature, levels of metabolites) is termed biotelemetry. Both techniques
require the test animal to be caught at least once to equip it with a miniature
transmitter, which may be implanted or attached outside, by glue or harness.
In marine species, telemetry has successfully been used in some relatively
large animals (mammals, fish and birds).
Teleostei ~Osteichthyes.
telson the hindmost segment of the arthropod abdomen. ~(rustacea.
temperate zone temperature zone of the earth between the polar zone and the
tropical zone, usually separated from the first by the 10°C isotherm for the
warmest month (roughly limit for growth of coniferous trees), and from the
tropical zone by the 18 °C isotherm for the coldest month (roughly the limit
of palm trees and reef corals). ~biogeography.
temperature of seawater determines its physical properties, together with the
salinity. It is measured in situ at different depths with instruments such as the
bathythermograph, the (TO recorder or reversing thermometers. In oceanography temperature is measured in degrees Celsius (OC). For some applications degrees
Kelvin (K) are used, where K = °C + 273. Its horizontal and vertical variations are caused by air-sea exchange of heat, mixing and advection of water of
different temperature. Because of the predominant influence of temperature
on the density of seawater the temperature profile commonly shows a
decrease in temperature with depth, although regionally temperature inversions may occur, where the change in salinity may counteract the effect of
temperature. Also adiabatic compression may cause a downward increase in
temperature at great depths. ~potential temperature.
temperature-salinity diagram diagram with (potential) temperature (T) and salinity (S) as coordinates, used in the analysis of oceanographic observations.
Curved lines printed in the temperature-salinity (T-S) diagram give the density according to the equation of state. Each individual observation of temperature and salinity is represented by a point in the diagram. Observations at
subsequent depths give points arranged along lines that are characteristic of
the water structure at a given location. ~water mass.
316
erally unrelated to associated geologic formations. They are believed to be
of extraterrestrial origin or the product of meteorite impacts on terrestrial
rocks.
telemetry distant measuring of environmental or biological variables, by applying radio electrical techniques. The remote monitoring by a transmitter of
the whereabouts of an animal is termed radio tracking and remote monitoring of its behavior or physiology (e.g., posture, heart rate, deep body temperature, levels of metabolites) is termed biotelemetry. Both techniques
require the test animal to be caught at least once to equip it with a miniature
transmitter, which may be implanted or attached outside, by glue or harness.
In marine species, telemetry has successfully been used in some relatively
large animals (mammals, fish and birds).
Teleostei ~Osteichthyes.
telson the hindmost segment of the arthropod abdomen. ~(rustacea.
temperate zone temperature zone of the earth between the polar zone and the
tropical zone, usually separated from the first by the 10°C isotherm for the
warmest month (roughly limit for growth of coniferous trees), and from the
tropical zone by the 18 °C isotherm for the coldest month (roughly the limit
of palm trees and reef corals). ~biogeography.
temperature of seawater determines its physical properties, together with the
salinity. It is measured in situ at different depths with instruments such as the
bathythermograph, the (TO recorder or reversing thermometers. In oceanography temperature is measured in degrees Celsius (OC). For some applications degrees
Kelvin (K) are used, where K = °C + 273. Its horizontal and vertical variations are caused by air-sea exchange of heat, mixing and advection of water of
different temperature. Because of the predominant influence of temperature
on the density of seawater the temperature profile commonly shows a
decrease in temperature with depth, although regionally temperature inversions may occur, where the change in salinity may counteract the effect of
temperature. Also adiabatic compression may cause a downward increase in
temperature at great depths. ~potential temperature.
temperature-salinity diagram diagram with (potential) temperature (T) and salinity (S) as coordinates, used in the analysis of oceanographic observations.
Curved lines printed in the temperature-salinity (T-S) diagram give the density according to the equation of state. Each individual observation of temperature and salinity is represented by a point in the diagram. Observations at
subsequent depths give points arranged along lines that are characteristic of
the water structure at a given location. ~water mass.