gov.noaa.ngdc.stp.solar:solar-features_solar-features_solar-radio eng; U.S.A. utf8 nonGeographicDataset series William Denig DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303 497-6323 303 497-6513 325 Broadway Boulder Colorado 80305-3337 U.S.A. solar.ngdc@noaa.gov 9:00 - 5:00 Mountain pointOfContact 2013-02-18 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Solar Radio 2012-10-14 publication solarFeatures Scientific Data Stewardship provided by the National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce. originator Scientists monitor the structure of the solar corona, the outer most regions of the Sun's atmosphere, using radio waves (100’s of MHz to 10’s of GHz). Variations in the radiowave spectrum reveal characteristics of the corona and upper chromosphere in terms of altitude profile for the local plasma temperature, density and magnetic field. Typically, the lower the frequency then the higher the height of origin. The frequency, like the solar electron density, decreases uniformly outwards with 245 MHz originating high in the corona whereas 15,400 MHz originates in the low corona. Radio bursts are associated with solar flares. The delay at Earth of the different radio frequencies during burst events is due to the outward movement of the source. Bursts can have temperatures of 10xE12 degrees Kelvin. Large bursts last 10 to 20 minutes on average. Longer radio noise storms of persistent and variable high levels of radiation originate in sunspot groups, areas of large, intense magnetic fields. These storms are strongly circularly polarized due to the intense magnetic fields. The microwave wavelength 2800 MHz daily radio flux correlates highly with the daily sunspot number and the two databases are used interchangeably. The 2800 MHz, or 10.7 cm, responds to the same conditions that produce changes in the visible and X-ray wavelengths. Schmahl and Kundu (1995) find that the solar radio fluxes in the spectral range 1000-9400 MHz correlate well with the total solar irradiance. The intermediate frequencies (at 2800 and 3750 MHz) are produced mainly by free-free gyroresonance emission from sunspot structures, while 1000 and 9400 MHz flux are produced mainly by free-free processes from structures associated with plages. They can distinguish plage-associated emission from spot-associated emission in the time series of microwave flux, both contributing opposing effects on the total solar irradiance. The NGDC Solar and Terrestrial Physics (STP) division provides scientific data stewardship of solar-terrestrial datasets in compliance with NOAA Administrative Order (NAO) 212-15, "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. Data access provided by the NOAA Solar and Terrestrial Physics Division. underDevelopment William Denig DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325, Broadway Boulder Colorado 80305-3337 U.S.A. solar.ngdc@noaa.gov 9:00 - 5:00 Mountain pointOfContact annually ftp://ftp.ngdc.noaa.gov/STP/space-weather/solar-data/solar-features/solar-radio/documentation/browse_radio-burst.jpg Browse image of the sun in x-rays during a solar radio burst( Joint Photographic Experts Group (jpg) format Sun-Earth Interactions > Solar Activity > Solar Active Regions Sun-Earth Interactions > Solar Activity > Solar Imagery theme NASA/GCMD Earth Science Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 . NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0. 2007 publication Space > Solar Region > Chromosphere place NASA/GCMD Location Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 . NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0. 2007 publication Solar Telescope instrument NASA/GCMD Instrument Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 . NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0. 2007 publication Solar Observatory Stations platform NASA/GCMD Platform Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 . NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0. 2007 publication DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce dataCenter NASA/GCMD Data Center Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 . NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0. 2007 publication NOAA > Space Weather Program WDS > World Data Center for Geophysics, Boulder project NASA/GCMD Project Keywords; Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo, 2007 . NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 6.0.0.0.0 2007 publication otherRestrictions otherRestrictions 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. eng; U.S.A. geoscientificInformation climatologyMeteorologyAtmosphere Data assembled from data provided by various solar observatories located worldwide. -180 180 -90 90 Dataset Extent 1955-07-01 2010-11-24 0 0 Collection consists of tabular lists and information related to solar features Solar features Collection includes a variety of solar feature datasets contributed by a number of national and private solar observatories located worldwide. Collection includes lists of optical solar flares observed in H-alpha and x-rays, solar radio data, prominences and filaments, plague regions and faculae, and sunspots. pdf Most data provided in Adobe Portable Document Format (pdf). txt Some data provide in American Standard Code for Information Interchange (ASCII) text format. binary Some data provided in native format as received from provider. Dr William Denig DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (303) 497-6323 (303) 497-6513 NOAA/NESDIS/NGDC E/GC2 325 Broadway Boulder Colorado 80305-3337 U.S.A. solar.ngdc@noaa.gov http://www.ngdc.noaa.gov/stp/spaceweather.html Space Weather Numerous datasets pertaining to space weather. 9:00 - 17:00 Mountain Contact Data Center // ngdc.info@noaa.gov // (303) 497-6826 distributor Data can be downloaded free of charge from the NGDC Solar and Terrestrial Physics (STP) division. Tabular lists and tables ftp://ftp.ngdc.noaa.gov/STP/space-weather/solar-data/solar-features/solar-radio/ Solar Radio Data A variety of datasets related to solar radio emissions. Included are datasets related to solar radio bursts (tables and reports), listings from the International Astronomical Union's Bulletin of Solar Activity (53 stations), noontime solar radio flux measurements (5 stations), 1-sec solar flux measurements from the Radio Solar Telescope Netword (RSTN), and RSTN solar spectral measurements. download http://www.ngdc.noaa.gov/stp/spaceweather.html Space Weather Numerous space environmental datasets are available at the NGDC/STP website information series The collection is as complete as possible with all available data online. Datasets prepared by professional staff within the Solar and Terrestrial Physics Division at the National Geophysical Data Center. Datasets prepared by professional staff within the Solar and Terrestrial Physics Division at the National Geophysical Data Center. Listings provided in pdf and txt formats, as applicable. Timing, heliographic position, assigned region number, and other relevant information provided for each identified flare. Datasets prepared by professional staff within the Solar and Terrestrial Physics Division at the National Geophysical Data Center. Supporting metatdata included, as available. Flare times determined by trained staff at solar observatories. Authoritative data provided by the NOAA National Geophysical Data Center. Flare listings compiled using data received from various solar observatories. 2010-09-30T00:00:00 William Denig NOAA/NESDIS/NGDC E/GC2 325 Broadway (303) 497-6323 (303) 497-6513 NOAA/NESDIS/NGDC 325 Broadway E/GC2 Boulder Colorado 80305-3337 U.S.A. solar.ngdc@noaa.gov processor The NOAA Solar and Terrestrial Physics Division is responsible for managing this collection. Collection included as a part of the NGDC Official Archive. H-alpha Flare Listings 2011-01-01 publication DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, National Environmental Satellite, Data, and Information Service, National Oceanic and Atmospheric Administration, Department of Commerce resourceProvider ground condition 1955-07-01 2010-11-24 Datasets prepared by professional staff within the Solar and Terrestrial Physics Division at the National Geophysical Data Center. Flares observed in H-alpha. Solar Flares: H-alpha NOAA National Geophysical Data Center (NGDC) 303 497-6323 303 497-6513 325 Broadway, E/GC2 Boulder Colorado 80305-3337 U.S.A. solar.ngdc@noaa.gov http://www.ngdc.noaa.gov/ NOAA National Geophysical Data Center (NGDC) NOAA's National Geophysical Data Center (NGDC) provides scientific stewardship, products, and services for geophysical data from the Sun to the Earth and Earth's sea floor and solid earth environment, including Earth observations from space. resourceProvider 1955-07-01 2010-11-24 annually 2013-12-30 Update collection for the Space Weather Prediction Center daily full sun drawings as data becomes available, including missing records (all observatories). 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. William Denig DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce 303 497-6323 303 497-6513 325 Broadway Boulder Colorado 80305-3337 U.S.A. solar.ngdc@noaa.gov 9:00 - 5:00 Mountain custodian Solar observatories Full sun drawings of the sun.