| definition |
- [Image Source: NOAA, http://www.ozonelayer.noaa.gov/action/sbuv2.htm ]
[Text Source: NASA POES Project home page, http://goespoes.gsfc.nasa.gov/poes/instruments/sbuv.html ]
The SBUV/2 is a nadir-pointing nonspatial spectrally scanning ultraviolet radiometer carried in two modules. The two modules are the Sensor Module with the optical elements/detectors and the Electronics Module. The overall radiometric resolution is approximately 1 nanometer (nm). Two optical radiometers form the heart of the instrument: a monochrometer and a “Cloud Cover Radiometer” (CCR). The monochrometer measures the Earth radiance directly and selectively the Sun when a diffuser is deployed. The CCR measures the 379-nm wavelength and is coaligned to the monochrometer. The output of the CCR represents the amount of cloud cover in a scene and is used to remove cloud effects in the monochrometer data.
The SBUV/2 measures solar irradiance and Earth radiance (backscattered solar energy) in the near ultraviolet spectrum (160 to 400 nm). The following atmospheric properties are measured from this data:
- The global ozone concentration in the stratosphere to an absolute accuracy of 1 percent.
- The vertical distribution of atmospheric ozone to an absolute accuracy of 5 percent.
- The long-term solar spectral irradiance from 160 to 400 nm Photochemical processes and the influence of “trace” constituents on the ozone layer.
Group: Instrument_Details
Entry_ID: SBUV/2
Group: Instrument_Identification
Instrument_Category: Solar/Space Observing Instruments
Instrument_Class: Ultraviolet Instruments
Short_Name: SBUV/2
Long_Name: Solar Backscatter Ultraviolet/2
End_Group
Group: Associated_Platforms
Short_Name: NOAA-15
Short_Name: NOAA-16
Short_Name: NOAA-17
Short_Name: NOAA-18
Short_Name: NOAA-19
End_Group
Group: Spectral_Frequency_Information
Wavelength_Keyword: Ultraviolet
Number_Channels: 12
Spectral_Frequency_Coverage_Range: 252.00 ± 0.05 nm - 339.89 ± 0.05 nm
End_Group
Online_Resource: http://goespoes.gsfc.nasa.gov/poes/instruments/sbuv.html
Online_Resource: http://www.ozonelayer.noaa.gov/action/sbuv2.htm
Online_Resource: http://www.ncdc.noaa.gov/oa/pod-guide/ncdc/docs/klm/html/c3/sec3-8.htm
Sample_Image: http://www.ozonelayer.noaa.gov/action/poessat.gif
Group: Instrument_Logistics
Instrument_Owner: USA/NASA
Instrument_Owner: USA/NOAA
End_Group
End_Group
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