Solar Features - Prominences and Filaments

Metadata Updated: October 13, 2020

Prominences and filaments are two manifestations of the same phenomenon. Both prominences and filaments are features formed above the chromosphere by cool dense gases held in place by solar magnetic fields. Filaments are observed on the solar disk as dark structures as seen against the hotter chromosphere whereas prominences on the limb appear bright against the perspective of outer space. The scale sizes for prominences and filaments are typically many thousands kilometers. Solar observers typically view prominences and filaments in Hydrogen alpha (656.3 nm). Filaments are sometimes referred to as floccule (plural of flocculus). Prominences and filaments can rapidly form over a period of a day but then typically persist for several weeks and, in some cases, several months. At breakup the gases within these previously stable structures may be explosively released into space in the form of a coronal mass ejection (CME). Space weather operators have and continue to monitor the location and character of prominences and filaments as potential precursors on near-earth geomagnetic activity. (Browse image provided courtesy of http://www.greatdreams.com)

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License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Dates

Metadata Date October 2, 2015
Metadata Created Date October 13, 2020
Metadata Updated Date October 13, 2020
Reference Date(s) August 10, 2014 (publication)
Frequency Of Update annually

Metadata Source

Harvested from NGDC STP Solar

Graphic Preview

Nice image distinguishing a solar prominence and filament (from "http://www.greatdreams.com").

Additional Metadata

Resource Type Nongeographicdataset
Metadata Date October 2, 2015
Metadata Created Date October 13, 2020
Metadata Updated Date October 13, 2020
Reference Date(s) August 10, 2014 (publication)
Responsible Party DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
Contact Email
Access Constraints Access Constraints: None Use Constraints: None Distribution Liability: While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.
Bbox East Long 180
Bbox North Lat 90
Bbox South Lat -90
Bbox West Long -180
Coupled Resource
Frequency Of Update annually
Graphic Preview Description Nice image distinguishing a solar prominence and filament (from "http://www.greatdreams.com").
Graphic Preview File https://www.ngdc.noaa.gov/stp/space-weather/solar-data/solar-features/prominences-filaments/documentation/browse-graphic_prominence-filament.jpg
Graphic Preview Type Joint Photographic Experts Group (jpg) format
Guid gov.noaa.ngdc.stp.solar:solar-features_prominences-filaments
Harvest Object Id 463eb2ca-3358-47ea-9275-2076c4fadada
Harvest Source Id b204ed61-c7b3-476c-a585-9ee0dda0a6e3
Harvest Source Title NGDC STP Solar
Licence
Metadata Language
Metadata Type geospatial
Progress underDevelopment
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1955-07-01
Temporal Extent End 2010-11-24

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