WMO OSCAR | Details for Instrument MUS-uv/vis/nir

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Instrument: MUS-uv/vis/nir

Instrument details

Acronym	MUS-uv/vis/nir
Full name	Multi-spectral Optical Camera - UV/VIS/NIR
Purpose	Ocean colour, vegetation, aerosol
Short description	12-channel UV/VIS/NIR radiometer: 380, 412, 443, 490, 531, 555, 620, 665, 682, 710, 785 and 865 nm. Detailed description not yet available.
Background	Complementary to MUS-swir flown on SAC-E/SABIA-MAR A
Scanning Technique	Cross-track, swath 1350
Resolution	200 to 1000 m, depending on channels, at s.s.p.
Coverage / Cycle	Global in two days
Mass		Power	Data Rate

Providing Agency	CONAE
Instrument Maturity	Flown on an R&D satellite
Utilization Period:	2024 to 2029
Last update:	2022-07-18

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

Satélite de Aplicaciones Cientificas (CONAE)
- SAC-E/SABIA-MAR B (see instrument status) 2024 - 2029

Instrument classification

Earth observation instrument
Passive optical radiometer or spectrometer
Moderate resolution optical imager

WIGOS Subcomponents

Subcomponent 1
High-resolution multi-spectral VIS/IR imagers
High-resolution multi-spectral VIS/IR imager

Mission objectives

Primary mission objectives

Colour Dissolved Organic Matter (CDOM)
Ocean Diffuse Attenuation Coefficient (DAC)
Ocean chlorophyll concentration
Ocean suspended sediments concentration
Oil spill cover

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	3 - high	Cloud sensitive.. Daylight only.	UV (for absorbing aerosol), VIS (with narrow bandwidth) and NIR channels, including 760 nm for high-level aerosol
Aerosol effective radius	3 - high	Cloud sensitive.. Daylight only.	UV (for absorbing aerosol), VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Aerosol mass mixing ratio	3 - high	Cloud sensitive.. Daylight only.	UV (for absorbing aerosol), VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Aerosol Optical Depth	3 - high	Cloud sensitive.. Daylight only.	UV (for absorbing aerosol),VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Aerosol type	3 - high	Cloud sensitive.. Daylight only.	UV (for absorbing aerosol), VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Fraction of Absorbed PAR (FAPAR)	3 - high	Cloud sensitive.	VIS channels including Red at 700 nm
Normalised Difference Vegetation Index (NDVI)	3 - high	Cloud sensitive.	VIS and NIR channels
Photosynthetically Active Radiation (PAR)	3 - high	Cloud sensitive.	VIS channels, range accurately sampled
Aerosol volcanic ash	3 - high	Cloud sensitive.. Daylight only.	UV, VIS and NIR channels, including 760 nm for high-level ashes
Aerosol volcanic ash Total Column	3 - high	Cloud sensitive.. Daylight only.	UV (specifically sensitive to ash), VIS and NIR channels, including 760 nm for high-level ashes
Cloud optical depth	4 - fair	Low-density cloud only.. Daylight only.	VIS and NIR channels
Colour Dissolved Organic Matter (CDOM)*	4 - fair	Cloud sensitive.. Daylight only.	Many narrow-bandwith VIS channels, suitable for more water types, in open ocean
Leaf Area Index (LAI)	4 - fair	Cloud sensitive.. Daylight only.	VIS and NIR channels. LAI inferred from NDVI
Ocean chlorophyll concentration *	4 - fair	Cloud sensitive.. Daylight only.	Many narrow-bandwith VIS channels, suitable for more water types, in open ocean
Ocean Diffuse Attenuation Coefficient (DAC)*	4 - fair	Cloud sensitive.. Daylight only.	Many narrow-bandwith VIS channels, suitable for more water types, in open ocean
Ocean suspended sediments concentration*	4 - fair	Cloud sensitive.. Daylight only.	Many narrow-bandwith VIS channels, suitable for more water types, in open ocean
Snow cover	4 - fair	Cloud sensitive.. Daylight only.	VIS and NIR channels
Upward short-wave irradiance at TOA	4 - fair	Spectral interpolation needed.. Information on BRDF needed.	UV, VIS and NIR channels
Biomass	5 - marginal	Cloud sensitive.. Index only.. Daylight only.	VIS and NIR channels. Biomass inferred from NDVI
Cloud cover	5 - marginal	Daylight only.	VIS and NIR channels
Cloud top height	5 - marginal	Daylight only.	NIR channels to estimate the total-column O2 above the cloud top as measured around 760 nm
Cloud type	5 - marginal	Daylight only.	VIS and NIR channels
Downward short-wave irradiance at Earth surface	5 - marginal	Cloud sensitive.. Highly indirect.	VIS and NIR channels
Earth surface albedo	5 - marginal	Cloud sensitive.	VIS channels
Fire fractional cover	5 - marginal	Cloud sensitive.. Coarse spatial resolution.. Daylight only.	VIS channels
Oil spill cover*	5 - marginal	Cloud sensitive.. Daylight only.	VIS channels with narrow bandwidth
Short-wave cloud reflectance	5 - marginal	No specific limitation.	VIS and NIR channels
Soil moisture at surface	5 - marginal	Cloud sensitive.. Index only.. Daylight only.	VIS and NIR channels. Soil moisture inferred from differential brightness
Sea-ice cover	5 - marginal	Cloud sensitive.. Daylight only.	VIS and NIR (for contour enhancement) channels

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