ionogram at Kokubunji, Tokyo, Japan

Abstract:
Recorded tracings of high-frequency (HF) radio pulses reflected in the ionosphere. This ionograms are produced by an ionosonde at Kokubunji, Tokyo, Japan. The ionosonde sweeps HF radio pulses from 1MHz to 30MHz, basically every 15 minutes. The transmitted radio pulses travel more slowly within the ionosphere, depending on the ionospheric plasma density. The apparent height, that is, virtual height of the reflection point is recorded for each frequency of the transmitted HF radio wave. When the frequencies become higher than the maximum plasma frequency of the ionospheric layer, the radio wave pass through the layer and be lost in space. The profile of the ionospheric plasma density can be obtained from this data.

Download plain xml file

To get the data: go to WIS-Portal

Metadata Information

General

General information section
AttributeValue
fileIdentifier/identifierurn:x-wmo:md:jp.go.nict.swc::ionog-TO
language
characterSetutf-8
hierarchyLevel
hierarchyLevelName
    contactsee section contact (role: pointOfContact)
    dateStamp 2016-01-13
    metadataStandardNameWMO Core Metadata Profile of ISO 19115 (WMO Core), 2003/Cor.1:2006 (ISO 19115), 2007 (ISO/TS 19139)
    metadataStandardVersion1.3
    referenceSystemInfo
    metadataExtensionInfo

    identificationInfo

    Identification information section
    AttributeValue
    citation
    • title:
      • ionogram at Kokubunji, Tokyo, Japan
    • dates:
      • revision: 2015-09-15
    • fileIdentifier:

      • (CodeSpace: )
    • citedResponsibleParty:
      • see section contact (role: distributor)
    • presentationForm:
    • otherCitationDetails:
    abstract see above
    status
    purpose
    pointOfContactsee section contact (role: originator)
    graphicOverview
    resourceMaintenance
    • maintenanceAndUpdateFrequency:
      • continual
    • updateScope:
    • maintenanceNote:
    descriptiveKeywords:
    • theme:
      • spaceWeather
    • theme:
      • space weather
      • ionosphere
      • ionosonde
      • plasma density
    • place:
    resourceConstraints
    • MD_Constraints:
      • useLimitation:
    • MD_LegalConstraints:
      • accessConstraints: otherRestrictions
      • useConstraints: otherRestrictions
      • otherConstraints: NoLimitation
    language
    characterSetutf-8
    topicCategoryclimatologyMeteorologyAtmosphere
    extentboundingExtent
    • description:
    • geographicElement:
      • westBoundLongitude: 139.49
      • eastBoundLongitude: 139.49
      • southBoundLatitude: 35.71
      • northBoundLatitude: 35.71
    • temporalElement:
      • beginPosition:
      • endPosition: (indeterminatePosition = )

    Contact

    Role: pointOfContact

    Contact information section
    AttributeValue
    individualName
    organisationNameDCPC NICT, Tokyo Space Weather Center, National Institute of Information and Communications Technology
    contactInfo

    Role: distributor

    AttributeValue
    individualName
    organisationName DCPC NICT, Tokyo Space Weather Center, National Institute of Information and Communications Technology
    positionName
    contactInfo

    Role: originator

    Originator information section
    AttributeValue
    organisationNameDCPC NICT, Tokyo Space Weather Center, National Institute of Information and Communications Technology
    contactInfo

    contentInfo

    Content information section
    AttributeValue
    CoverageDescription:
    • attributeDescription
    • contentType

    distributionInfo

    Distribution information section
    AttributeValue
    distributionFormat
    • name:
      • PNG
    • version:
      • (gco:nilReason=unknown)
    • specification:
    transferOptions (onLine)

    dataQualityInfo

    Data Quality information section
    AttributeValue
    scope
    report
    • title:
    • date ():
    • explanation:
    • pass:
    lineage
    • statement:
    • processStep: