| Ionosonde Stations | identificationInfo|
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| (MI_Metadata) fileIdentifier: gov.noaa.ngdc.stp.ionosonde:G10145 language: eng; USA characterSet: (MD_CharacterSetCode) utf8 hierarchyLevel: (MD_ScopeCode) dataset contact: (CI_ResponsibleParty) individualName: Justin Mabie organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce positionName: Space and Terrestrial Weather Specialist contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6135 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: 325 Broadway, Mail Code E/GC4 city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: Justin.Mabie@noaa.gov role: (CI_RoleCode) pointOfContact dateStamp: 2015-09-18 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: Ionosonde Stations date: (CI_Date) date: 1958-01-01 dateType: (CI_DateTypeCode) publication citedResponsibleParty: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information role: (CI_RoleCode) publisher citedResponsibleParty: (CI_ResponsibleParty) organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce role: (CI_RoleCode) originator citedResponsibleParty: (CI_ResponsibleParty) positionName: (withheld) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: http://spidr.ngdc.noaa.gov protocol: http name: Ionosonde Data description: Information, search capabilities and data downloads function: (CI_OnLineFunctionCode) information role: (inapplicable) citedResponsibleParty: (CI_ResponsibleParty) positionName: (withheld) contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.ngdc.noaa.gov/stp/IONO protocol: http name: Ionosonde Data Archive description: Ionosonde Data function: (CI_OnLineFunctionCode) information role: (inapplicable) abstract: Ionograms are recorded tracings of reflected high frequency radio pulses generated by an ionosonde. Unique relationships exist between the sounding frequency and the ionization densities which can reflect it. As the sounder sweeps from lower to higher frequencies, the signal rises above the noise of commercial radio sources and records the return signal reflected from the different layers of the ionosphere. These echoes form characteristic patterns of "traces" that comprise the ionogram. Radio pulses travel more slowly within the ionosphere than in free space, therefore, the apparent or "virtual" height is recorded instead of a true height. For frequencies approaching the level of maximum plasma frequency in a layer, the virtual height tends to infinity, because the pulse must travel a finite distance at effectively zero speed. The frequencies at which this occurs are called the critical frequencies. Characteristic values of virtual heights (designated as h'E, h'F, and h'F2, etc.) and critical frequencies (designated as foE, foF1, and foF2, etc.) of each layer are scaled, manually or by computer, from these ionograms. Typically, an ionosonde station obtains one ionogram recording every 15 minutes. When the scaling is done manually only the hourly recordings are routinely reduced to numerical data. Modern ionosondes with computer-driven automatic scaling procedures routinely scale all the ionograms recorded. The resulting numerical values, along with the original ionograms and station reports, are archived at five World Data Centers (WDCs) for Ionosphere. The ionosphere is divided into four broad regions called D,E, F, and topside. These regions may be further divided into several regularly occurring layers, such as F1 or F2.D Region: The region between about 75 and 95km above the Earth in which the relatively weak) ionization is mainly responsible for absorption of high-frequency radio waves. E Region: The region between about 95 and 150km above the Earth that marks the height of the regular daytime E layer. Other subdivisions isolating separate layers of irregular occurrence within this region are also labeled with an E prefix, such as the thick layer, E2, and a highly variable thin layer, Sporadic E. Ions in this region are mainly O2+. F Region: The region above about 150km in which the important reflecting layer, F2, is found. Other layers within this region are also described using the prefix F, such as a temperate-latitude regular stratification, F1, and a low-latitude, semi-regular stratification, F1.5. Ions in the lower part of the F layer are mainly NO+ and are predominantly O+ in the upper part. The F layer is the region of primary interest for radio communications. purpose: To produce Ionograms status: (MD_ProgressCode) underDevelopment pointOfContact: (CI_ResponsibleParty) individualName: Justin Mabie organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce positionName: Space and Terrestrial Weather Specialist contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6135 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: 325 Broadway, Mail Code E/GC4 city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: Justin.Mabie@noaa.gov role: (CI_RoleCode) pointOfContact resourceMaintenance: (MD_MaintenanceInformation) maintenanceAndUpdateFrequency: (MD_MaintenanceFrequencyCode) daily descriptiveKeywords: (MD_Keywords) keyword: Sun-Earth >Interactions >Solar Energetic Particle Properties >Particle Density >Electron Density height Profile keyword: Spectral/Engineering >Radar >Radar Reflectivity type: (MD_KeywordTypeCode) theme thesaurusName: (CI_Citation) title: NASA/GCMD Earth Science Keywords date: (unknown) descriptiveKeywords: (MD_Keywords) keyword: ICSU-WDS > International Council for Science - World Data System type: (MD_KeywordTypeCode) project thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Project Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: 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. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian descriptiveKeywords: (MD_Keywords) keyword: Vertical Location > Ionosphere type: (MD_KeywordTypeCode) place thesaurusName: (CI_Citation) title: NASA/GCMD Location Keywords date: (unknown) descriptiveKeywords: (MD_Keywords) keyword: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce keyword: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce type: (MD_KeywordTypeCode) dataCentre thesaurusName: (CI_Citation) title: Global Change Master Directory (GCMD) Data Center Keywords date: (CI_Date) date: 2020-01-09 dateType: (CI_DateTypeCode) publication edition: 9.1 citedResponsibleParty: (CI_ResponsibleParty) organisationName: NASA Goddard Space Flight Center, Earth Science Data and Information System contactInfo: (CI_Contact) onlineResource: (CI_OnlineResource) linkage: https://www.earthdata.nasa.gov/learn/find-data/idn/gcmd-keywords name: Global Change Master Directory (GCMD) Keywords description: 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. function: (CI_OnLineFunctionCode) information role: (CI_RoleCode) custodian resourceConstraints: (MD_Constraints) useLimitation: 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. resourceConstraints: (MD_LegalConstraints) useConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Use Constraints: None resourceConstraints: (MD_LegalConstraints) accessConstraints: (MD_RestrictionCode) otherRestrictions otherConstraints: Access Constraints: None language: eng; USA topicCategory: (MD_TopicCategoryCode) geoscientificInformation extent: (EX_Extent) geographicElement: (EX_GeographicBoundingBox) westBoundLongitude: -180 eastBoundLongitude: 180 southBoundLatitude: -90 northBoundLatitude: 90 temporalElement: (EX_TemporalExtent) extent: TimePeriod: beginPosition: 1958-01-01 endPosition: supplementalInformation: Every Ionosonde station has it's own metadata record in Spidr and also in the Ionosonde Record Set here in the NMMR return to top distributionInfo: (MD_Distribution) distributionFormat: (MD_Format) name: via ftp: SAO, EDP GIF, PNG, MMM, 16C, RSF, SDF, GRM, DFT and SKY via Spidr: ASCII, XML Matlab version: (unknown) distributor: (MD_Distributor) distributorContact: (CI_ResponsibleParty) individualName: Justin Mabie organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce positionName: Space and Terrestrial Weather Specialist contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6135 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: 325 Broadway, Mail Code E/GC4 city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: Justin.Mabie@noaa.gov role: (CI_RoleCode) pointOfContact distributionOrderProcess: (MD_StandardOrderProcess) fees: None transferOptions: (MD_DigitalTransferOptions) onLine: (CI_OnlineResource) linkage: https://www.ngdc.noaa.gov/stp/solar/solardataservices.html protocol: http name: Solar Data description: Solar Home page function: (CI_OnLineFunctionCode) information onLine: (CI_OnlineResource) linkage: ftp://ftp.ngdc.noaa.gov/ionosonde protocol: ftp name: Index of STP/Ionosphere description: ftp characteristics of Ionospheric data function: (CI_OnLineFunctionCode) download onLine: (CI_OnlineResource) linkage: http://spidr.ngdc.noaa.gov onLine: (CI_OnlineResource) linkage: ftp://ftp.ngdc.noaa.gov/ionosonde return to top dataQualityInfo: (DQ_DataQuality) scope: (DQ_Scope) level: (MD_ScopeCode) repository levelDescription: (MD_ScopeDescription) other: NOAA National Centers for Environmental Information lineage: (LI_Lineage) processStep: (LE_ProcessStep) description: NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. dateTime: DateTime: 2015-04-22T00:00:00 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 2012-08-08 version of the FGDC RSE to ISO 19115-2 transform. maintenanceNote: Translated from FGDC 2012-10-10T11:08:33.458-06:00 maintenanceNote: This record was automatically modified on 2015-09-18 to include references to NCEI where applicable. contact: (CI_ResponsibleParty) organisationName: NOAA National Centers for Environmental Information positionName: Metadata Specialist role: (CI_RoleCode) editor contact: (CI_ResponsibleParty) individualName: Justin Mabie organisationName: DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce positionName: Space and Terrestrial Weather Specialist contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6135 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: 325 Broadway, Mail Code E/GC4 city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: Justin.Mabie@noaa.gov role: (CI_RoleCode) pointOfContact | |