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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:
TBD
Last update:
2021-06-16
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
WIGOS Subcomponents
Subcomponent 1 UV/VIS/NIR sounder [in GEO]
Mission objectives
Primary mission objectives CH4 mole fraction CO mole fraction CO2 mole fraction Show all Show fewer
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
Variable Relevance for measuring this variable Operational limitations Explanation
CH4 mole fraction 1 - primary Cloud 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 fraction 1 - primary Daylight only.. Cloud sensitive. Very-high resolution SWIR spectrometry CO lines around 2.3 micrometers. Specifically designed for CO. Frequent sampling from GEO enables monitoring sources
CO2 mole fraction 1 - primary Cloud 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.
Instrument: GeoCarb