BackForwardInstrument:  MicroCarb 

Instrument details
Acronym MicroCarb
Full name MicroCarb
Purpose CO2 profile
Short description Spectrometer with four very-narrow NIR/SWIR bands, centred on 1608 and 2037 nm (CO2); and 764 and 1273 nm (O2). Resolving power λ/Δλ = 25000 [see detailed characteristics below]
Background Similar to OCO, with an additional O2 band at 1273 nm
Scanning Technique Cross-track: three parallel 4.5-km IFOV's for a comprehensive 13.5 km swath. Along-track sampling at 9.km intervals. Over land the pointing is close to nadir, over ocean it is tilted towards sunglint.
Resolution 4.5 km at s.s.p.
Coverage / Cycle Nearly-global in 21 days
Mass 72 kg Power 57 W Data Rate

 

Providing Agency CNES
Instrument Maturity Flown on an R&D satellite
Utilization Period: ≥2023 to ≥2028
Last update: 2021-06-16
Detailed characteristics

Central wavelength

Bandwidth

Resolving power (λ/∆λ)

SNR

Species

764 nm

10 nm

25000

480

O2

1273 nm

27 nm

25000

670

O2

1608 nm

17 nm

25000

680

CO2

2037 nm

22 nm

25000

325

CO2

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
  • Cross-nadir shortwave (UV/VIS) sounder
WIGOS Subcomponents
  • Subcomponent 1
  • UV/VIS/NIR nadir sounder
Mission objectives
Primary mission objectives
  • CO2 mole fraction
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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
CO2 mole fraction1 - primaryCloud sensitive.. Daylight only.Very-high resolution SWIR spectrometry CO2 lines around 1.6 and 2.1 micrometers. Specifically designed for CO2.