gov.noaa.ngdc.stp.solar_imagery:Chromosphere_Calcium_Meudon eng; U.S.A. utf8 nonGeographicDataset series Karen E. Horan DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6277 303.497.6513 NOAA/NESDIS/NGDC E/GC1 325 Broadway Boulder CO 80305-3328 USA Karen.E.Horan@noaa.gov 7:30 - 5:00 Mountain Contact Data Center custodian 2016-12-27 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Calcium Chromosphere Observed from Meudon Observatory 2007-11-09 creation Chromosphere_Calcium_Meudon documentDigital The calcium datasets consist of full-disk images of the sun in Calcium (Ca) II K wavelength (393.4 nm). Ca II K imagery reveal magnetic structures of the sun from about 500 to 2000 km above the photosphere that are not evident in white light images. The chromosphere is an extremely dynamic layer of the sun consisting of a mixture of hot ionized plasma and cool gas. The presence of calcium ions in the chromospheric (along with other ions such as helium and hydrogen) lead to the absorption of radiant emission from the sun. The Ca II K absorption lines are extremely sensitive to local magnetic fields wherein the presence of stronger magnetic fields results in less absorption (brighter features) than weaker fields (more absorption = darker features). Unique features of the chromosphere evident in Ca II K are plage, pores, supergranulation cells and the chromospheric network. Also observed in Ca II K are solar features typically discussed in the context of the photosphere, including sunspots and faculae. Sunspots in photospheric observations appear as dark regions due to the cooler temperatures (~3000 oK) of the overlying gas compared to the surrounding solar surface (~5500 oK). Although sunspots are regions of intense solar magnetic activity (i.e. less absorption), the lack of radiant emissions from the underlying photosphere results in chromospheric sunspot regions that remain darker than the surrounding sun. Faculae, on the other hand, are brighter regions in chromospheric observations which result from the concentration of magnetic field lines between solar granules (solar convection cells). Closely associated with faculae are bright areas of chromospheric plage, also referred to as floccule, within solar active regions that are associated with sunspot formation. Solar pores are actually small sunspots that have not yet formed (and may never form) into the standard picture of a dark central umbra surrounded by a somewhat brighter penumbra. Supergranulation cells are large regions of convective horizontal flows (larger than individual granules) wherein solar material and an embedded magnetic field flow radially outward from the center and downward at the outer boundaries causing the web-like appearance of the chromospheric network structure. 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. Complete William Denig DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6323 (303) 497-6513 325 Broadway E/GC2 Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain pointOfContact nonePlanned https://www.ngdc.noaa.gov/stp/space-weather/solar-data/solar-imagery/chromosphere/calcium/meudon/2012/03/meud_caiik_fs_20120323_120416.jpg Example Image from Chromosphere_Calcium_Meudon series. jpg 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 theme Global Change Master Directory (GCMD) Science Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Space > Solar Region > Chromosphere place Global Change Master Directory (GCMD) Location Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Solar Telescopes instrument Global Change Master Directory (GCMD) Instrument Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian Solar Observatory Stations platform Global Change Master Directory (GCMD) Platform Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian 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 dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian NOAA > Space Weather Program WDS > World Data Service for Geophysics, Boulder project Global Change Master Directory (GCMD) Project Keywords 2020-01-09 publication 9.1 NASA Goddard Space Flight Center, Earth Science Data and Information System https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords Global Change Master Directory (GCMD) Keywords The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. information custodian otherRestrictions 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. jpg eng; U.S.A. climatologyMeteorologyAtmosphere Non-geographic 2007-11-09 2013-12-31 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. William Denig DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6323 (303) 497-6513 325 Broadway E/GC2 Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain pointOfContact jpg https://www.ngdc.noaa.gov/stp/space-weather/solar-data/solar-imagery/chromosphere/calcium/meudon/ Chromosphere_Calcium_Meudon Directory All images and related documentation. download series Collection consists of daily solar images (photographs) and drawings provided by various solar observatories. The collection is as complete as possible with all available data online. Observatory staff acquire data from one or more telescopes viewing the sun at various wavelengths to identify solar features of interest including the solar corona, plage regions, filaments and prominances. Consistent data presentation formats are used for each separate dataset. Drawings are properly rotated into a heliocentric coordination orientation. Top is north. Right is east. Solar images and drawings were obtained and/or prepared by trained staff at the various institutions. Daily solar images and drawings are annotated with the observation time and other relevant metadata. annually This metadata was automatically generated from a form in in the Chameleon Editor (https://www.ngdc.noaa.gov/cedit) with solarimagery2iso.xsl on 2016-12-27. Solar Telescopes Meudon Observatory TBD