In a radiosonde observation, a level (other than a standard level) for which values of pressure, temperature, and humidity are reported because temperature and/or humidity data at that level is sufficiently important or unusual to warrant the attention of ...

The point (physical and/or electrical) where two distinct data processing elements meet.

See mote.

An elongated area of relatively high pressure. Usually associated with and most clearly identified as an area of maximum anticyclonic curvature of the wind flow. The opposite of a trough.

Electromagnetic radiation of shorter wavelength than visible radiation but longer than x-rays, between 0.02 and 0.4 micron (200 and 4000 angstrom).

Same as instrument shelter.

The difference between downward and upward (total) radiation; net flux of all radiation.

That part of an audio-modulated radiosonde consisting of the baroswitch, the sensing elements, the reference elements, and the relay.

A large plastic constant-level balloon for duration flying at very high altitudes.

A recording magnetometer.

The direction, with respect to true north, from which the wind is blowing. Distinguish from magnetic wind direction. In all standard upper-air and surface weather observations, it is true wind direction that is reported.

Extended Binary Coded Decimal Interchange Code. A standard code used to represent data using 8 bits per character.

In a system of moist air, the ratio of the mass of water vapor to the total volume of the system. Usually expressed as grams per cubic meter (g/m3).

A graduated scale placed in a position so that the stage of a stream may be read directly from it. Staff gauges may be placed on bridge piers or pilings, etc., or placed on specially constructed supports.

A recording anemometer.

The component of the radiosonde which includes the modulating blocking oscillator and the radiofrequency carrier oscillator.

An aneroid barometer with a scale graduated in altitude instead of pressure units.

A type of electrical thermometer consisting of two thermocouples which are series-connected with a potentiometer and a constant-temperature bath. One couple, called the reference junction, is placed in a constant-temperature bath, while the other is used ...

Same as atmometer.

Generally, the relative states of inflow, outflow, and storage of moisture over a given area of earth's surface.