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F1 layer critical frequency, foF1
F1 layer, h'F1 , The virtual height of the
(F10.7)FPI Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit Frobisher B, Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands, FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio Flux Monitor
F2 layer critical frequency. , foF2, the
F2 layer, h'F2 , The virtual height of the
Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit Frobisher B, Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands, FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio Flux Monitor (F10.7)FPI
facilities , WDC Data, models and other
Facilities Summary Plots , UK Ground-Based STP National
Facilities Summary Plots , UK Ground-Based STP National
factor. , M(3000)F2, the maximum usable frequency
FAGS , Guide to World Data Centers - Appendix A -
Falls , World Data Center for Land Cover Data, Sioux
Falls , World Data Center for Remotely Sensed Land Data, Sioux
FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio Flux Monitor (F10.7)FPI Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit Frobisher B, Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands,
Feedback Page , UKSSDC User
Field during the Last 100 Years , A Doubling of the Sun's Coronal Magnetic
Finance and Amendments , Guide to WDC -
Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit Frobisher B, Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands, FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio Flux Monitor (F10.7)FPI Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC
first ionospheric layer is discovered. , 1924: The
Fitting in IDL using MPFITFUN andMPFITEXPR , %bodyTutorial: 1D Curve
flux and the total solar irradiance , Long-term drift of the coronal source magnetic
flux and the total solarirradiance , Long-term drift of the coronal source magnetic
flux and the total solarirradiance , Long-term drift of the coronal source magnetic
Flux Monitor (F10.7)FPI Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit Frobisher B, Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands, FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio
Flux Values , Some Changes to our dataset of 10.7cm Solar Radio
Fmin, the minimum observable frequency.
foE , E layer critical frequency,
foEs , Sporadic E critical frequency,
foF1 , F1 layer critical frequency,
foF2, the F2 layer critical frequency.
following information , Eclipse '99 radio experiment - Send us the
following information , Eclipse '99 radio experiment - Send us the
following information , Eclipse '99 radio experiment - Send us the
foreign radio stations during the eclipse - The simple experiment , Listening out for
Form for entering plans
Format Data , IIWG
Format Help , IIWG
formation of CCLRC , 1995 : The
Formation of the Radio Research Board , The
forms the Rutherford Appleton Laboratory , 1979: Merger
FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit Frobisher B, Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands, FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio Flux Monitor (F10.7)FPI Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg
FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands, FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio Flux Monitor (F10.7)FPI Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit Frobisher B, Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut
frequency. , Fmin, the minimum observable
frequency. , foF2, the F2 layer critical
frequency factor. , M(3000)F2, the maximum usable
frequency, foE , E layer critical
frequency, foEs , Sporadic E critical
frequency, foF1 , F1 layer critical
frequency, fxI , Highest scalable
Frequently Asked Questions , %bodyMPFIT
Frobisher B, Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands, FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio Flux Monitor (F10.7)FPI Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit
Frobisher BayIttoqqortoormiit ScoresbysundJeju Jeju IslandKangerlussuaq Sondre StromfjordManiitsoq SukkertoppenMartin de Vivies Amsterdam IslandMaynard BostonNuuk GodthaabPaamiut FrederikshaabPort Alfred Crozet ArchipelagoPort-aux-Francais Kerguelen IslandsPuerto Rico RameyQaanaaq ThuleQeqertarsuaq GodhavnResolute Resolute BaySondrestrom Sondre StromfjordStennis Bay St. LouisTasiilaq AmmassalikTerre Adelie Dumont d'UrvilleUummannaq UmanaqVernadsky Argentine Islands, FaradayWarsaw MiedzeszynZhongshan Zhong-ShanPage last updated by Sarah James on , Explanatory Table for the List of Ground-Based Observing InstrumentsHome > WDC > Instrument locator > Station list > KeyExplanatory tables for the list of Ground-Based Observing StationsInstrument CodesCode MeaningAS Spectrometer, AuroralASC All-Sky Camera, AnalogASCD All-Sky Camera, DigitalASP Photometer, Azimuth ScanningATV Auroral TV CameraBLS bls ???CHF Coherent HF RadarCOR CoronographCUHF Coherent UHF RadarCVHF Coherent VHF RadarD Doppler SounderDA da ???DYN DynasondeE e ???ELF ELF ReceiverES Ebert SpectrometerEUVI Extreme Ultra-Violet ImagerF10.7 Solar Radio Flux Monitor (F10.7)FPI Fabry Perot InterferometerHI Heliospheric ImagerI Ionosonde, AnalogID Ionosonde, DigitalIPS Interplanetary Scintillation ArrayIS Incoherent Scatter RadarLF-HF LF, MF and HF ReceiverM MagnetometerMF MF RadarMI Michelson InterferometerMIS Spectrograph, Meridian scanningMOI Monochromatic ImagerMP Magnetometer, PulsationMSP Photometer, Meridian ScanningNM Neutron MonitorOS Spectrometer, OpticalP PhotometerPI Photometer, ImagingPRE Partial Reflection ExperimentR RiometerRI Riometer, ImagingRR Rocket RangeRT Radio TelescopeSC Satellite Scintillation DetectorSI Spectrometer, ImagingSIR Scanning Infrared RadiometerSM Spectrometer, MicrowaveSS Solar Seismology DetectorST Solar TelescopeSUV Spectrometer, Ultra-violetTEC Total Electron Content MeasurementsVLF VLF Receiver(c) campaign use only(p) planned at time of most recent information(s) instrument no longer operating (shut)(ro) receiver onlyChain, Instrument and Data Centre AcronymsAcronym Group210E Longitude 210 East Magnetometer NetworkAGONET Antarctic Geospace Observatory NETworkALIS Auroral Large Imaging SystemCARISMA Canadian Array for Realtime Investigations of Magnetic ActivityCGSM Canadian Geospace Monitoring ProgramCO Contracted Oval index magnetometer stationsCOSCAT COSCATCUTLASS Co-operative UK Twin Located Auroral Sounding SystemDASI Digital All Sky ImagerDIMNET DIxon meridian Magnetometer NETworkEISCAT European Incoherent ScatterEO Expanded Oval index magnetometer stationsFASCC Finnish All-Sky Camera ChainGIMA The Geophysical Institute Magnetometer ArrayGreenland Greenland Magnetometer ArrayIMAGE International Monitor for Auroral Geomagnetic EffectsINGV Instituto Nazionale di Geofisica e VulcanologiaIntermagnet INTERnational MAGNETometer databaseIRIS Imaging Riometer for Ionospheric StudiesMACCS Magnetometer Array for Cusp and Cleft StudiesMAGIC Magnetometer Array on the Greenland Ice CapMEASURE Magnetometers along the Eastern Atlantic Seaboard for Undergraduate Research and Education ProgramMIRACLE Magnetometers - Ionospheric Radars - Allsky Cameras Large ExperimentNGDC National Geophysical Data CentrePENGUIN Polar Experiment Network for Geophysical Upper-atmosphere INvestigationsSAMNET Sub-Auroral Magnetometer NETworkSAPPHIRE SAPPHIRESECCHI Sun Earth Connection Coronal and Heliospheric InvestigationSIRN Scandinavian Imaging Riometer NetworkSO Standard Oval index magnetometer stationsSTARE Scandinavian Twin Auroral Radar ExperimentSuperDARN Super Dual Auroral Radar NetworkTOMO TOMOgraphy receiver networkULCAR University of Lowell Center for Atmospheric ResearchUSGS US Geological Survey Geomagnetic ProgramWDC-A World Data Center A for STPWDC-C1 World Data Centre C1 for STPStation SynonymsStation SynonymAndoya AndenesArviat Eskimo PointAthabasca MeanookBarrow Point BarrowCalcutta Haringhata, KolkataClyde Clyde RiverDumont d'Urville Terre AdelieFort Churchill ChurchillFredricksburg FredericksburgGreat Whale Riv. Kuujjuarrapik, Post-de-La-BaleineHabana CubaIqaluit Frobisher B,
FRS (1892-1965) , Sir Edward Victor Appleton,
FRS (1892-1973) , Sir Robert Alexander Watson-Watt,
Funding from STFC Programmatic Review , Status of UK Solar System Data Centre
Funding Shortfall , Space Environment Centre
Funding Shortfall , Space Environment Centre
fxI , Highest scalable frequency,