The cumulative number of degree-days, calculated by adding all the negative mean daily air temperatures (˚C) for a specific station during a calendar year
The cumulative number of degree-days, calculated by adding all the negative mean daily air temperatures (degrees Celsius) for a specific station during a calendar year.
The cumulative number of degree-days, calculated by adding all the positive mean daily air temperatures (degrees Celsius) for a specific station during a calendar year.
The cumulative number of degree-days, calculated by adding all the positive mean daily air temperatures (˚C) for a specific station during a calendar year
The number of electrons along a ray path between a transmitter and a receiver. Units are electrons per square meter. This number is significant in determining ionospheric effects such as refraction, d
ispersion, and group delay on radio waves, and can be used to estimate critical frequencies. The TEC is strongly affected by solar and geomagnetic activity.
A term formerly used (Anonymous1969; Appendix: A) for the difference between Annual accumulation and Annual ablation, ca minus aa, in the stratigraphic system. Note that ablation is defined to be nega
tive.
The sum of the climatic-basal mass balance and frontal ablation, or equivalently the sum of accumulation and ablation; a synonym of mass balance. The adjective 'total' was formerly a technical term in
the stratigraphic system (Anonymous 1969; Appendix: A). It is now needed only when it is important to emphasize that all the components of the mass balance are being studied.