BackForwardInstrument:  GeoCarb 

Instrument details
Acronym GeoCarb
Full name Geostationary Carbon Cycle Observatory
Purpose To monitor the sources and sinks of atmospheric CO2, CH4, CO and solar-induced chlorophyll fluorescence (SIF) with unprecedented spatial and temporal detail
Short description Grating NIR/SWIR spectrometer to cover narrow bands around 0.76, 1.61, 2.06 and 2.34 μm.
Background Developed after OCO, but flown in GEO for frequent sampling
Scanning Technique Cross-track scanning of selected segments of the Earth's disk across the America's
Resolution 3 km (N-S) by 6 km (E-W)
Coverage / Cycle Segments as large as 2800 km x 2800 km in about 2 hours
Mass 152 kg Power 150 W Data Rate 10.5 Mbps

 

Providing Agency NASA
Instrument Maturity Flown on an R&D satellite
Utilization Period: ≥2022 to ≥2027
Last update: 2017-08-02
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
  • Cross-nadir shortwave (UV/VIS) sounder
Mission objectives
Primary mission objectives
  • CH4 Mole Fraction
  • CO Mole Fraction
  • 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
CH4 Mole Fraction1 - primaryCloud sensitive.. Daylight only.Very-high resolution SWIR spectrometry CH4 lines around 2.3 micrometers. Specifically designed for CH4. Frequent sampling from GEO enables monitoring sources
CO Mole Fraction1 - primaryCloud sensitive.. Daylight only.Very-high resolution SWIR spectrometry CO lines around 2.3 micrometers. Specifically designed for CO. Frequent sampling from GEO enables monitoring sources
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. Frequent sampling from GEO enables monitoring sources.