BackForwardInstrument:  SZS 

Instrument details
Acronym SZS
Full name Shore Zone Scanner
Purpose Ocean colour and aerosol in coastal zone
Short description 6-channels VIS/NIR radiometer operating in the spectral range 410-786 nm [see detailed characteristics below]
Background New development
Scanning Technique Cross-track scanning; swaths: 800 km
Resolution 80 m
Coverage / Cycle Near-global in 3 days, in daylight
Mass Power Data Rate

 

Providing Agency RosHydroMet
Instrument Maturity Backed by strong heritage
Utilization Period: TBD
Last update: 2012-09-15
Detailed characteristics
Central wavelength Bandwidth SNR @ specified input spectral radiance
415 nm 10 nm 200 @ …..… W m-2 sr-1 µm-1
490 nm 10 nm 200 @ …..… W m-2 sr-1 µm-1
557.5 nm 15 nm 200 @ …..… W m-2 sr-1 µm-1
595 nm 30 nm 200 @ …..… W m-2 sr-1 µm-1
665 nm 20 nm 200 @ …..… W m-2 sr-1 µm-1
779 nm 14 nm 200 @ …..… W m-2 sr-1 µm-1
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

Instrument classification
  • Earth observation instrument
  • Passive optical radiometer or spectrometer
  • Moderate resolution optical 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
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Tentative 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
VariableRelevance for measuring this variableOperational limitationsExplanation
Aerosol column burden3 - highCloud sensitive.. Daylight only.VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Aerosol effective radius3 - highCloud sensitive.. Daylight only.VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Aerosol mass mixing ratio3 - highCloud sensitive.. Daylight only.VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Aerosol Optical Depth3 - highCloud sensitive.. Daylight only.VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Aerosol type3 - highCloud sensitive.. Daylight only.VIS (with narrow bandwidth) and NIR channels including 760 nm for high-level aerosol
Biomass5 - marginalCloud sensitive.. Index only.. Daylight only.VIS and NIR channels. Biomass inferred from NDVI
Cloud cover5 - marginalDaylight only.VIS and NIR channels
Cloud optical depth4 - fairLow-density cloud only.. Daylight only.VIS and NIR channels
Cloud top height5 - marginalDaylight only.NIR channels to estimate the total-column O2 above the cloud top as measured around 760 nm
Cloud type5 - marginalDaylight only.VIS and NIR channels
Colour Dissolved Organic Matter (CDOM)3 - highCloud sensitive.. Daylight only.A few VIS channels, including broad, narrow, and very narrow ones. Suitable for a few water types, mainly in open ocean
Downward short-wave irradiance at Earth surface5 - marginalCloud sensitive.. Highly indirect.VIS and NIR channels
Earth surface albedo5 - marginalCloud sensitive.VIS channels
Fire fractional cover5 - marginalCloud sensitive.. Coarse spatial resolution.. Daylight only.VIS channels
Fraction of Absorbed PAR (FAPAR)4 - fairCloud sensitive.VIS channels including Red at 700 nm
Leaf Area Index (LAI)4 - fairCloud sensitive.. Daylight only.VIS and NIR channels. LAI inferred from NDVI
Normalised Difference Vegetation Index (NDVI)3 - highCloud sensitive.VIS and NIR channels
Ocean chlorophyll concentration 3 - highCloud sensitive.. Daylight only.A few VIS channels, including narrow, and very narrow ones. Suitable for a few water types, mainly in open ocean
Ocean Diffuse Attenuation Coefficient (DAC)3 - highCloud sensitive.. Daylight only.A few VIS channels, including narrow, and very narrow ones. Suitable for a few water types, mainly in open ocean
Ocean suspended sediments concentration3 - highCloud sensitive.. Daylight only.A few VIS channels, including narrow, and very narrow ones. Suitable for a few water types, mainly in open ocean
Oil spill cover5 - marginalCloud sensitive.. Daylight only.VIS channels with narrow bandwidth
Photosynthetically Active Radiation (PAR)4 - fairCloud sensitive.VIS channels, range undersampled
Short-wave cloud reflectance5 - marginalNo specific limitation.VIS and NIR channels
Snow cover4 - fairCloud sensitive.. Daylight only.VIS and NIR channels
Soil moisture at surface5 - marginalCloud sensitive.. Index only.. Daylight only.VIS and NIR channels. Soil moisture inferred from differential brightness
Upward short-wave irradiance at TOA5 - marginalSpectral interpolation needed.. Information on BRDF needed.VIS and NIR channels
Aerosol volcanic ash3 - highCloud sensitive.. Daylight only.VIS and NIR channels including 760 nm for high-level ashes
Aerosol volcanic ash Total Column3 - highCloud sensitive.. Daylight only.VIS and NIR channels including 760 nm for high-level ashes