Vertical Total Electron Content (VTEC) 120 >Outer Ionospheric plasma Total number of ionized particles in a volume unit of ionospheric NA Space>Ionospheric density plasma. disturbances>Ionospheric plasma density 121 >Outer Ionospheric plasma Velocity of bulk plasma or electrons (depending on measurement NA Space>Ionospheric velocity technique) as a function of altitude in the ionosphere. disturbances>Ionospheric plasma velocity 122 >Outer Spread F Vertical thickness of highly structured ion density in the F-region NA Space>Ionospheric of the ionosphere. disturbances>Spread F 123 >Outer foEs The highest ordinary-wave frequency reflected back from a NA Space>Ionospheric sporadic E layer and observed by an ionosonde. disturbances>foEs 124 >Outer foF2 Critical frequency of the F2 layer of the ionosphere. This critical NA Space>Ionospheric frequency (f, in MHz) is associated with the electron density. disturbances>foF2 125 Space>Ionospheric h'F Virtual height of the bottom of the ionospheric F-layer. NA disturbances>h'F 126 Space>Ionospheric hmF2 Altitude of the peak density in the ionospheric F2 layer. NA disturbances>hmF2 127 Space>Solar EUV flux Radiative flux integrated over the EUV band. NA monitoring>EUV flux 128 >Outer Space>Solar EUV flux spectrum Energy spectrum of the radiative flux measured in the EUV band. NA monitoring>EUV flux spectrum 129 >Outer Space>Solar EUV sky Extreme Ultra-Violet (EUV) image of the sky. NA monitoring>EUV sky image 130 >Outer Space>Solar Gamma-ray flux Radiative flux integrated over the gamma-ray domain. NA monitoring>Gamma-ray flux
Vertical Total Electron Content (VTEC) 120 >Outer Space>Ionospheric disturbances>Ionospheric plasma density Ionospheric plasma density Total number of ionized particles in a volume unit of ionospheric plasma. NA 121 >Outer Space>Ionospheric disturbances>Ionospheric plasma velocity Ionospheric plasma velocity Velocity of bulk plasma or electrons (depending on measurement technique) as a function of altitude in the ionosphere. NA 122 >Outer Space>Ionospheric disturbances>Spread F Spread F Vertical thickness of highly structured ion density in the F-region of the ionosphere. NA 123 >Outer Space>Ionospheric disturbances>foEs foEs The highest ordinary-wave frequency reflected back from a sporadic E layer and observed by an ionosonde. NA 124 >Outer Space>Ionospheric disturbances>foF2 foF2 Critical frequency of the F2 layer of the ionosphere. This critical frequency (f, in MHz) is associated with the electron density. NA 125 Space>Ionospheric disturbances>h'F h'F Virtual height of the bottom of the ionospheric F-layer. NA 126 Space>Ionospheric disturbances>hmF2 hmF2 Altitude of the peak density in the ionospheric F2 layer. NA 127 Space>Solar monitoring>EUV flux EUV flux Radiative flux integrated over the EUV band. NA 128 >Outer Space>Solar monitoring>EUV flux spectrum EUV flux spectrum Energy spectrum of the radiative flux measured in the EUV band. NA 129 >Outer Space>Solar monitoring>EUV sky image EUV sky Extreme Ultra-Violet (EUV) image of the sky. NA 130 >Outer Space>Solar monitoring>Gamma-ray flux Gamma-ray flux Radiative flux integrated over the gamma-ray domain. NA
CBS-16-d03-3(1)-RECOMMENDATIONS-MANUAL-ON-CODES-draft1_en.docx