Sferics receiver: Difference between revisions
From Glossary of Meteorology
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<div class="definition"><div class="short_definition">(''Also called'' lightning direction finder.) An instrument that measures, electronically, the direction of arrival, [[intensity]], and rate of occurrence of [[atmospherics]]; a type of [[radio direction finder]], it is most commonly used to detect and locate [[cloud-to-ground lightning discharges]] from distant thunderstorms.</div><br/> <div class="paragraph">In its simplest form the instrument consists of two orthogonally crossed [[antennas]] that measure the [[electromagnetic field]] changes produced by a [[lightning discharge]] and determine the direction from which the changes arrived. Negative and positive [[polarity]] cloud-to-ground discharges can be distinguished. [[Cloud-to-cloud discharges]] can be distinguished based on characteristics of the received [[signal]], and the geometry of nearby discharge channels may be determined. <br/>''See also'' [[narrow- sector recorder]], [[lightning detection network]].</div><br/> </div> | <div class="definition"><div class="short_definition">(''Also called'' lightning direction finder.) An instrument that measures, electronically, the direction of arrival, [[intensity]], and rate of occurrence of [[atmospherics]]; a type of [[radio direction finder|radio direction finder]], it is most commonly used to detect and locate [[cloud-to-ground flash|cloud-to-ground lightning discharges]] from distant thunderstorms.</div><br/> <div class="paragraph">In its simplest form the instrument consists of two orthogonally crossed [[antennas]] that measure the [[electromagnetic field]] changes produced by a [[lightning discharge]] and determine the direction from which the changes arrived. Negative and positive [[polarity]] cloud-to-ground discharges can be distinguished. [[cloud flash|Cloud-to-cloud discharges]] can be distinguished based on characteristics of the received [[signal]], and the geometry of nearby discharge channels may be determined. <br/>''See also'' [[narrow-sector recorder|narrow- sector recorder]], [[lightning detection network]].</div><br/> </div> | ||
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Latest revision as of 16:51, 25 April 2012
sferics receiver
(Also called lightning direction finder.) An instrument that measures, electronically, the direction of arrival, intensity, and rate of occurrence of atmospherics; a type of radio direction finder, it is most commonly used to detect and locate cloud-to-ground lightning discharges from distant thunderstorms.
In its simplest form the instrument consists of two orthogonally crossed antennas that measure the electromagnetic field changes produced by a lightning discharge and determine the direction from which the changes arrived. Negative and positive polarity cloud-to-ground discharges can be distinguished. Cloud-to-cloud discharges can be distinguished based on characteristics of the received signal, and the geometry of nearby discharge channels may be determined.
See also narrow- sector recorder, lightning detection network.
See also narrow- sector recorder, lightning detection network.
