Full Sun Drawings Composites Observed from Fraunhofer Observatory

browse graphicExample Image from Composites_Full Sun Drawings_Fraunhofer series.
Full sun drawings are a form of synoptic analysis drawings, also known as Neutral line (NL) drawings which provide a comprehensive daily view of the sun for relevant solar feature of interest. To a somewhat limited extent depending on the provider the discerned features include neutral lines, coronal hole boundaries, active regions, plage, filaments and prominences. Also included are specific details about the coronal hole polarity, active region numbers, flare probabilities for each region and the proton event probabilities for each region. Brief descriptions of interesting solar features interest include: Active Regions - Active regions of the sun are localized areas on the Sun with intense magnetic fields. The strongest magnetic fields provide energy for solar flares and coronal mass ejections (CMEs). Coronal holes (X-Ray and He 10830) - Coronal holes are unipolar magnetic regions that are the source of high speed solar winds. Coronal holes appear dark when seen in UV or X-rays, because they have a very low density. Traditionally, coronal holes have been identified from He I 10830A observations which can be made from ground based observatories. Faculae - Solar faculae are bright spots that form in the canyons between solar granules, short-lived convection cells several thousand kilometers across that constantly form and dissipate over timescales of several minutes. Faculae are produced by concentrations of magnetic field lines. Strong concentrations of faculae appear in solar activity, with or without sunspots. The faculae and the sunspots contribute noticeably to variations in the "Solar constant". The chromospheric counterpart of a facular region is called a plage Filaments/Prominences (H-alpha) - Filaments (on disk) and prominences (at the limb) are meta-stable regions of high density suspended in the low density corona. These are considered meta-stable because they can erupt becoming a coronal mass ejection but sometimes they just fade away. When they erupt they then become a geomagnetic storm threat. These eruptions are usually slow and don¿t often drive very large storms. Neutral Lines (Magnetogram) - Any time the magnetism field on the Sun organizes itself into large structures of one magnetic polarity or the other, there must be a neutral line at the boundary of the magnetic polarity. In active regions, neutral lines are associated with flaring and in the quiet sun filaments/prominences will lie along the neutral lines. Plage - Most of an active region's area is usually occupied by plage and whereas sunspots appear dark, plage shows up as bright areas surrounding sunspots. It is due to plage that the sun is brighter at solar maximum than at solar minimum. Areas of plage have strong magnetic fields, but the field is not as highly organized as it is in sunspots.
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  • Composites_Full Sun Drawings_Fraunhofer
gov.noaa.ngdc.stp.solar_imagery:Composites_Full_Sun_Drawings_Fraunhofer
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    Distributor William Denig
    DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    (303) 497-6323
    solar.ngdc@noaa.gov
    Dataset Point of Contact William Denig
    DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    (303) 497-6323
    solar.ngdc@noaa.gov
    Coverage Description Non-geographic
    Time Period 1956-01-16 to 1973-12-31
    Spatial Bounding Box Coordinates Non-geographic
    Documentation links not available.
    Publication Dates
    • creation: 1956-01-16
    Data Presentation Form Digital document - digital representation of a primarily textual item (can contain illustrations also)
    Dataset Progress Status Complete
    Data Update Frequency
    Supplemental Information
    The NOAA National Centers for Environmental Information (formally NGDC) provides scientific data stewardship of solar-terrestrial datasets
    in compliance with NOAA Administrative Order (NAO 212-15), "Management of Environmental Data and Information", published 04 Nov 10. Scientific
    Data Stewardship includes the Archive, Access, and Assessment (AAA) of operational and related solar and space environmental datasets.
    Purpose Scientific data stewardship of solar-terrestrial datasets in compliance with NOAA Administrative Order (NAO) 212-12, "Management of Environmental and Geospatial Data and Information", dated 04 Nov 10. Scientific Data Stewardship includes the Archive, Access, and Assessment (AAA) of operational and related solar and space environmental datasets.
    Publishers
      Publisher information not available.
    Theme keywords Global Change Master Directory (GCMD) Science Keywords
    • Sun-Earth Interactions > Solar Activity > Solar Active Regions
    • Sun-Earth Interactions > Solar Activity > Solar Imagery
    • Sun-Earth Interactions > Solar Activity > Sunspots
    • Sun-Earth Interactions > Solar Activity > Corona
    • Sun-Earth Interactions > Solar Activity > Solar Synoptic Maps
    Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
    • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
    • DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce
    Platform keywords Global Change Master Directory (GCMD) Platform Keywords
    • Solar Observatory Stations
    Instrument keywords Global Change Master Directory (GCMD) Instrument Keywords
    • Solar Telescopes
    Place keywords Global Change Master Directory (GCMD) Location Keywords
    • Space > Solar Region > Composites
    Project keywords Global Change Master Directory (GCMD) Project Keywords
    • NOAA > Space Weather Program
    • WDS > World Data Service for Geophysics, Boulder
    Use Constraints No constraint information available
    Access Constraints
    • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
    Fees Fee information not available.
    Acquisition Information (collection)
    Instrument
      Platform
      • Fraunhofer Observatory
      Last Modified: 2016-12-27
      For questions about the information on this page, please email: Karen.E.Horan@noaa.gov