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• In solar-terrestrial terms, an Active Region that exhibits a group or series of spike-like surges that rise above the limb.

  NOAA National Weather Service - Cite This Source - This Definition
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  Cite Definition for Active Surge Region (ASR)

  American Psychological Association (APA)

  Active Surge Region (ASR). (n.d.). National Weather Service Glossary. Retrieved June 9, 2023, from website: http://www.expertglossary.com/definition/active-surge-region-asr.

  Chicago Manual of Style (CMS)

  Active Surge Region (ASR). www.weather.gov. National Weather Service Glossary. NOAA National Weather Service. http://www.expertglossary.com/definition/active-surge-region-asr (accessed: June 9, 2023).

  Modern Language Association (MLA)

  "Active Surge Region (ASR)." National Weather Service Glossary. NOAA National Weather Service. 9 June. 2023 http://www.expertglossary.com/definition/active-surge-region-asr.

• Browse Related Terms: Active Surge Region (ASR), Bright Surge on the Disk (BSD), Bright Surge on the Limb (BSL), Chromosphere, Coronal Hole, Coronal Transients, Dark Surge on Disk (DSD), F Corona, Facula, Granulation, K Corona, Prominence