|
|
Solar Radio DataidentificationInfodistributionInfo metadataMaintenance |
| (MI_Metadata) fileIdentifier: gov.noaa.ngdc.stp.solar:G00216 language: eng; USA characterSet: (MD_CharacterSetCode) utf8 hierarchyLevel: (MD_ScopeCode) dataset contact: (CI_ResponsibleParty) individualName: Solar Data Manager organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce contactInfo: (CI_Contact) phone: (CI_Telephone) voice: 303.497.6133 or 303.497.6323 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: NOAA/NESDIS/NGDC E/GC2 325 Broadway city: Boulder administrativeArea: CO postalCode: 80305 country: USA electronicMailAddress: solar.ngdc@noaa.gov hoursOfService: 7:30 - 4:30 Mountain contactInstructions: Contact Data Center role: (CI_RoleCode) pointOfContact dateStamp: 2011-11-17 metadataStandardName: ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data metadataStandardVersion: ISO 19115-2:2009(E) return to top identificationInfo: (MD_DataIdentification) citation: (CI_Citation) title: Solar Radio Data date: (CI_Date) date: 1973 dateType: (CI_DateTypeCode) publication edition: First citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce (comp.) role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: WDC/STP, Boulder > World Data Center for Solar-Terrestrial Physics, Boulder role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) organisationName: WDC/Solar Radion Emissions > World Data Center for Solar Radio Emissions, Japan role: (CI_RoleCode) originator abstract: Scientists monitor the structure of the solar corona, the outer most regions of the Sun's atmosphere, using radio waves. The surface of the Sun is 6,000 degrees Kelvin, while the high corona can reach several million degrees Kelvin. Solar radio emissions at different frequencies allow us to observe radiation from different heights in the atmosphere. The lower the frequency, the higher the height of origin. The frequency, like the electron density, decreases uniformly outwards: 245 MHz originates high in the corona, while 15,400 MHz originates in the low corona. The 5 MHz emission corresponds to about 10 solar radii height. For a detailed review, see McLean and Labrum (1985)Solar Radiophysics.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. purpose: To provide long-term scientific data stewardship for the Nation's geophysical data, ensuring quality, integrity, and accessibility. status: (MD_ProgressCode) underDevelopment pointOfContact: (CI_ResponsibleParty) individualName: Solar Data Manager organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce contactInfo: (CI_Contact) phone: (CI_Telephone) voice: 303.497.6133 or 303.497.6323 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: NOAA/NESDIS/NGDC E/GC2 325 Broadway city: Boulder administrativeArea: CO postalCode: 80305 country: USA electronicMailAddress: solar.ngdc@noaa.gov hoursOfService: 7:30 - 4:30 Mountain contactInstructions: Contact Data Center role: (CI_RoleCode) pointOfContact resourceMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) monthly descriptiveKeywords: (MD_Keywords) keyword: Earth Science > Sun-Earth Interactions > Solar Activity > Solar Radio Wave Emissions type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: NASA/Global Change Master Directory (GCMD) Earth Science Keywords date: (CI_Date) date: 2007-04 dateType: (CI_DateTypeCode) revision edition: Version 6.0.0.0.0 editionDate: 2007-04 citedResponsibleParty: (CI_ResponsibleParty) organisationName: 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 contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html protocol: http applicationProfile: web browser name: GCMD Keywords, Version 6.0.0.0.0 description: Thesuarus for earth science keywords and associated directories hosted and maintained by NASA. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) resourceProvider descriptiveKeywords: (MD_Keywords) keyword: Ottawa 10.7 cm Flux keyword: Quiet Sun Flux keyword: Slowly Varying Component keyword: Solar Physics keyword: Solar Radio Flux type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: Uncontrolled Keywords date: descriptiveKeywords: (MD_Keywords) keyword: WDC/STP, BOULDER > World Data Center for Solar-Terrestrial Physics, Boulder keyword: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce type: (MD_KeywordTypeCode) dataCenter thesaurusName: (CI_Citation) title: NASA/GCMD Data Center Keywords date: descriptiveKeywords: (MD_Keywords) keyword: Space > Solar Region > Chromosphere keyword: Space > Solar Region > Corona type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: NASA/GCMD Location Keywords date: resourceConstraints: (MD_LegalConstraints) accessConstraints: (MD_RestrictionCode) otherRestrictions useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: 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. language: eng; USA topicCategory: (MD_TopicCategoryCode) geoscientificInformation extent: (EX_Extent) temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1947-02-14 endPosition: supplementalInformation: This archive includes: Solar Radio Bursts at fixed frequencies, Event listings from worldwide networks, Solar Radio Flux - Noon Flux Measurements from Ottawa/Penticton (10.7 cm/2800 MHz) and USAF stations (8 fixed frequencies between 245-15,000 MHz), International Astronomical Union QBSA daily solar radio noon flux values -- from 55 stations, for the time period 1949-1986 (722 station-years, 16.6 Mbytes), USAF Radio Solar Telescope Network RSTN 1 second Data - 8 selected frequencies from four worldwide station networks, Solar Radio Spectral Data 1967-present - Spectral Event Listings from worldwide network, andUSAF RSTN Solar Radio Spectral Graphical Data from four Stations, with viewing software and East-West Solar Radio Scans from 1957 - present. return to top distributionInfo: (MD_Distribution) distributionFormat: (MD_Format) name: ASCII version: distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) individualName: Solar Data Manager organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce contactInfo: (CI_Contact) phone: (CI_Telephone) voice: 303.497.6133 or 303.497.6323 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: NOAA/NESDIS/NGDC E/GC2 325 Broadway city: Boulder administrativeArea: CO postalCode: 80305 country: USA electronicMailAddress: solar.ngdc@noaa.gov hoursOfService: 7:30 - 4:30 Mountain contactInstructions: Contact Data Center role: (CI_RoleCode) distributor distributionOrderProcess: (MD_StandardOrderProcess) fees: $100.00/$75.00 plus handling and shipping outside the USA orderingInstructions: Ordering Instructions: Product may be ordered directly from our online store via: http://ols.nndc.noaa.gov/plolstore/plsql/olstore.prodspecific?prodnum=G01254-CDR-A0001 Custom Order Process: Contact data center for information turnaround: 4 Days transferOptions: (MD_DigitalTransferOptions) transferSize: Real: 30745.5 onLine: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/stp/SOLAR/ftpsolarradio.html onLine: (CI_OnlineResource) linkage: ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SOLAR_RADIO onLine: (CI_OnlineResource) linkage: http://www.ngdc.noaa.gov/stp/SOLAR/ftpsolarradio.html onLine: (CI_OnlineResource) linkage: ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SOLAR_RADIO transferOptions: (MD_DigitalTransferOptions) offLine: (MD_Medium) name: (MD_MediumNameCode) cdRom mediumFormat: (MD_MediumFormatCode) iso9660 return to top metadataMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) annually maintenanceNote: 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. contact: (CI_ResponsibleParty) individualName: Solar Data Manager organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce contactInfo: (CI_Contact) phone: (CI_Telephone) voice: 303.497.6133 or 303.497.6323 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: NOAA/NESDIS/NGDC E/GC2 325 Broadway city: Boulder administrativeArea: CO postalCode: 80305 country: USA electronicMailAddress: solar.ngdc@noaa.gov hoursOfService: 7:30 - 4:30 Mountain contactInstructions: Contact Data Center role: (CI_RoleCode) custodian |