WMO OSCAR | Details for Instrument SBUS

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Instrument: SBUS

Instrument details

Acronym	SBUS
Full name	Solar Backscatter Ultraviolet Sounder
Purpose	Ozone vertical profile
Short description	12 discrete channels of 1.15 nm bandwidth in the range 252-340 nm Calibration monitoring here
Background	New development. Operations on FY-3A stopped in 2010
Scanning Technique	Nadir view only
Resolution	200 km
Coverage / Cycle	Global coverage (200 km spacing) in 7 days. Daylight
Mass	22.6 kg	Power	20.1 W	Data Rate	1 kbps

Providing Agency	CMA
Instrument Maturity
Utilization Period:	2008 to 2020
Last update:	2024-09-09

Detailed characteristics

Satellites this instrument is flying on

Note: a red tag indicates satellites no longer operational, a green tag indicates operational satellites, a blue tag indicates future satellites

Feng-Yun - 3 (CMA)
- FY-3A (see instrument status) Aug 2008 - Dec 2008
- FY-3B (see instrument status) Feb 2011 - Jun 2020
- FY-3C (see instrument status) 2014 - Feb 2020

Instrument classification

Earth observation instrument
Passive optical radiometer or spectrometer
Cross-nadir shortwave (UV/VIS) sounder

WIGOS Subcomponents

Subcomponent 1
UV/VIS/NIR sounders, nadir and limb
UV/VIS/NIR nadir sounder

Mission objectives

Primary mission objectives

O3
O3 Total Column

Evaluation of Measurements

The following list indicates which measurements can typically be retrieved from this category of instrument. To see a full Gap Analysis by Variable, click on the respective variable.

Note: table can be sorted by clicking on the column headers
Note: * Primary mission objective.

Search:

Variable	Relevance for measuring this variable	Operational limitations	Explanation
Aerosol column burden	2 - very high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry for absorbing aerosol
Aerosol effective radius	2 - very high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry for absorbing aerosol
Aerosol mass mixing ratio	2 - very high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry for absorbing aerosol
Aerosol Optical Depth	2 - very high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry for absorbing aerosol
Aerosol type	2 - very high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry for absorbing aerosol
Aerosol volcanic ash	2 - very high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry, specifically sensitive to ash
Aerosol volcanic ash Total Column	2 - very high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry, specifically sensitive to ash
HCHO Total Column	3 - high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry. HCHO lines around 350 nm
NO2 Total Column	3 - high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry. Several NO2 lines
O3*	3 - high	Cloud sensitive.. Coarse vertical resolution.. Daylight only.. Along-track only.	UV spectrometry. Ozone lines in the bands around 260 nm (Hartley) and/or 340 nm (Huggins)
O3 Total Column*	3 - high	Cloud sensitive.. Daylight only.. Along-track only.	UV spectroradiometer. Ozone lines in the bands around 260 nm (Hartley) and/or 340 nm (Huggins)
PSC occurrence	3 - high	Coarse vertical resolution.. Daylight only.. Along-track only.	UV spectrometry
SO2 Total Column	5 - marginal	Cloud sensitive.. Daylight only.. Along-track only.	UV spectrometry. SO2 lines around 350 nm

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