- Industri: Weather
- Number of terms: 60695
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The American Meteorological Society promotes the development and dissemination of information and education on the atmospheric and related oceanic and hydrologic sciences and the advancement of their professional applications. Founded in 1919, AMS has a membership of more than 14,000 professionals, ...
Permanently frozen ground (permafrost) that, under present climatic conditions, will not refreeze if thawed; opposed to active permafrost.
Industry:Weather
A type of electrical thermometer in which the thermal element is a substance with an electrical resistance that varies with the temperature. Such thermometers can be made with very short time constants and are capable of very accurate measurements. They are commonly used in radiosondes.
Industry:Weather
In general, the difference between any quantity and an approximation to it; in particular, the difference (''y'' − ''Y'') between any random variable ''y'' and its regression function ''Y''. See regression.
Industry:Weather
Corona or point discharges that occur when the environmental electric field is high, typically at the tips of sharp conductors that enhance the electric field. This name was given the phenomenon by Mediterranean sailors who regarded it as a visitation of their patron saint, Elmo (Erasmus). Their superstition also led to the equivalent term corposant. An appearance of St. Elmo's fire was regarded as a good omen, for it tends to occur in those latter phases of a violent thunderstorm when most of the surface wind and wave disturbance is over.
Industry:Weather
A thermometer used to measure the temperature of the soil. Two forms of the mercury-in-glass thermometer are used for this purpose. For measurement at small depths, a thermometer with a right-angle bend in the stem is used. The bulb is inserted into a hole in the ground with the stem lying along the surface. A thermometer that has been fused into an outer protecting glass shield is used for measurement at greater depths. Wax is inserted between the bulb and the shield to increase the time constant. To obtain a measurement, the instrument is lowered into a steel tube that has been driven into the soil to the desired depth.
Industry:Weather
A type of electrical thermometer in which the thermal element is a substance with an electrical resistance that varies with the temperature. Such thermometers can be made with very short time constants and are capable of very accurate measurements. They are commonly used in radiosondes.
Industry:Weather
The portion of the storm rainfall that flows on the land surface toward the channel, but has not yet reached it. It does not include depression storage.
Industry:Weather
The geomorphologic patterns of hierarchical connections formed by streams as they drain the watershed.
Industry:Weather
The geomorphologic patterns of hierarchical connections formed by streams as they drain the watershed.
Industry:Weather
Radiation scattered out of the direct solar beam is often forward peaked, especially when the scattering is caused by dust. Therefore, the scattered radiation is concentrated at small angles close to the sun. This aureole phenomenon provides a sensitive measure of dust loading in the atmosphere.
Industry:Weather
