BackForwardInstrument:  PMRIS 

Instrument details
Acronym PMRIS
Full name Programmable Medium Resolution Imaging Spectrometer
Purpose Higher resolution but smaller swath ocean colour sensor than COCTS on same platform.
Short description There are 15 spectral bands at high (100m) spatial resolution and 90 bands at lower (200m) resolution. Channels at high resolution are in range 425 - 950 nm and at lower resolution in range 375-920 nm. More details on wavelengths when available.
Background New development
Scanning Technique Assumed to be push broom
Resolution 100 m & 200 m
Coverage / Cycle Swath 950 km
Mass Power Data Rate

 

Providing Agency CNSA
Instrument Maturity Flown on operational programme
Utilization Period: 2023 to 2036
Last update: 2023-11-22
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

Instrument classification
  • Earth observation instrument
  • Passive optical radiometer or spectrometer
  • Moderate resolution optical imager
WIGOS Subcomponents
  • Subcomponent 1
  • Narrow-band or hyperspectral imagers
  • Narrow-band imager (for ocean colour)
Mission objectives
Primary mission objectives
  • Ocean chlorophyll concentration
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.
VariableRelevance for measuring this variableOperational limitationsExplanation
Cloud cover5 - marginalDaylight only.. Dense cloud only.VIS channel(s)
Cloud top height5 - marginalDaylight only.NIR channels to estimate the total-column O2 above the cloud top as measured around 760 nm
Colour Dissolved Organic Matter (CDOM)4 - fairCloud sensitive.. Daylight only.Many narrow-bandwith VIS channels, suitable for more water types, in open ocean
Earth surface albedo5 - marginalCloud sensitive.VIS channels
Fire fractional cover5 - marginalCloud sensitive.. Coarse spatial resolution.. Daylight only.VIS channels
Fraction of Absorbed PAR (FAPAR)3 - highCloud sensitive.VIS channels including Red at 700 nm
Ocean chlorophyll concentration *4 - fairCloud sensitive.. Daylight only.Many narrow-bandwith VIS channels, suitable for more water types, in open ocean
Ocean Diffuse Attenuation Coefficient (DAC)4 - fairCloud sensitive.. Daylight only.Many narrow-bandwith VIS channels, suitable for more water types, in open ocean
Ocean suspended sediments concentration4 - fairCloud sensitive.. Daylight only.Many narrow-bandwith VIS channels, suitable for more water types, in open ocean
Oil spill cover5 - marginalCloud sensitive.. Daylight only.VIS channels with narrow bandwidth
Photosynthetically Active Radiation (PAR)3 - highCloud sensitive.VIS channels, range accurately sampled
Sea-ice cover5 - marginalCloud sensitive.. Daylight only.VIS channel(s)
Snow cover5 - marginalCloud sensitive.. Daylight only.VIS channel(s)
Integrated Water Vapour (IWV)4 - fairCloud sensitive.. Daylight only.NIR channels in the bands of water vapour around 900 nm and 940 nm