gov.noaa.ngdc.stp.solar:G00039 eng; USA utf8 dataset Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6133 or 303.497.6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain Contact Data Center pointOfContact 2011-11-17 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Solar Brightness and Magnetic Discontinuities Collected by the Solar Observing Optical Network (SOON) 1977 publication First SOON DOD/USAF/AFWA > Air Force Weather Agency, USAF, U.S. Department of Defense originator DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce publisher This data file consists of solar brightness and magnetic discontinuities collected by the Solar Observing Optical Network (SOON). SOON consists of up to five US Air Force Air Weather Service observatories. The Air Force operates five solar telescopes distributed in longitude to maintain continuous coverage to monitor solar active regions at optical wavelengths. GDC archives histograms of intensity versus area every minute for the active regions as well as magnetograms of the magnetic field structure and tachograms of plasma velocities on an irregular schedule. The basic SOON telescope is a 25-centimeter evacuated refractor mounted on a polar axis. It has a tunable monochromatic filter centered on the hydrogen-alpha absorption line (6562.8A) of the solar spectrum. Shifting the filter characteristics slightly off center from the H-alpha peak results in pictures of the solar surface region at differing depths. Corresponding to the optical images of solar regions are the digital "brightness-area" data. These data are often plotted as brightness-area histograms for a particular time or, in a 3-3-dimensional display, showing a time sequence of changing intensity of optical emissions from areas of solar active regions. Each digital scan of a region describes the amount of solar surface area within a pre-set rectangular viewing grid that is of brightness level N, where N ranges from 1 to 64 and represents the gray scale range from black to white. The automatic capability of the SOON telescope system allows the rapid collection of this brightness-area information on many active regions on the sun. By using these data, quantitative measures, including instability, growth/decay rates, and precise areas for each active solar region, can be determined. Solar Research underDevelopment Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6133 or 303.497.6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain Contact Data Center pointOfContact monthly SOON drawing from the Boulder Station ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SOLAR_IMAGES/BoulderSunspotDrawings/1990/19900120.jpg jpg EARTH SCIENCE > SOLAR PHYSICS > Solar Activity > Sunspots EARTH SCIENCE > Sun-earth Interactions > Solar Activity > Solar Active Regions EARTH SCIENCE > Sun-earth Interactions > Solar Activity > Solar Imagery theme NASA/Global Change Master Directory (GCMD) Earth Science Keywords 2007-04 revision Version 6.0.0.0.0 2007-04 NASA/GSFC/SED/ESD/GCDC/GCMD > Global Change Master Directory, Global Change Data Center, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html http web browser GCMD Keywords, Version 6.0.0.0.0 Thesuarus for earth science keywords and associated directories hosted and maintained by NASA. information resourceProvider Solar Physics Magnetograms Sunspots Solar Flares Tachograms theme Uncontrolled Keywords WDC/STP, BOULDER > World Data Center for Solar-Terrestrial Physics, Boulder DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce theme NASA/GCMD Data Center Keywords Photosphere place NASA/GCMD Location Keywords Sun place Uncontrolled Location Keywords otherRestrictions otherRestrictions Access Constraints: No Constraints 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. eng; USA geoscientificInformation 1977-01-01 ASCII Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6133 or 303.497.6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain Contact Data Center distributor Free Downloads 6534.8 ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SOLAR_IMAGES/ http://www.ngdc.noaa.gov/stp/SOLAR/ftpsolarimages.html http://www.afweather.af.mil/ dvd iso9660 annually This metadata was automatically generated from the Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata standard version FGDC-STD-012-2002 using the June 2011 version of the FGDC RSE to ISO 19115-2 transform. The Spatial Reference Information is not currently mapped over to ISO but will be mapped in future versions. Solar Data Manager DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303.497.6133 or 303.497.6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder CO 80305 USA solar.ngdc@noaa.gov 7:30 - 4:30 Mountain Contact Data Center pointOfContact