Loading in 2 Seconds...
Loading in 2 Seconds...
EVERGREEN Workshop. Measuring CO 2 Sources and Sinks from Space: The Orbiting Carbon Observatory (OCO) http://oco.jpl.nasa.gov. Ilse Aben (SRON) David Crisp (JPL/Caltech) January 2006. What Processes Control Atmospheric CO 2 ?. Atmospheric Carbon dioxide (CO 2 )
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Ilse Aben (SRON)
David Crisp (JPL/Caltech)
CO2 Error (ppm)
Spatial Scale (km)
OCO will make precise global measurements of XCO2 over the range of scales needed to monitor CO2 fluxes on regional to continental scales.
OCO will acquire the space-based data needed to identify CO2 sources and sinks and quantify their variability over the seasonal cycle
Clouds/Aerosols, Surface Pressure
Clouds/Aerosols, H2O, TemperatureMaking Precise CO2 Measurements from Space
The OCO spatial sampling strategy has been designed to provide precise, bias-free estimates of XCO2 on regional scales at monthly intervals
OCO Spatial Sampling Strategy
Local NadirOCO Observing Strategy
CloudSat – 3-D cloud climatology
CALIPSO – 3-D aerosol climatology
AIRS – T, P, H2O,
MODIS – cloud, aerosols, albedo
TES – T, P, H2O, O3, CH4, CO
MLS – O3, H2O, CO
HIRDLS – T, O3, H2O, CO2, CH4
OMI – O3, aerosol climatology
OCO - - CO2
Camera lensThe OCO Instrument
K = f/xi
AltitudeOCO Retrieval Algorithm
Pallas, Finland 68N
Kiruna, Sweden 68N
Poker Flat, Alaska 65N
Tsukuba, Japan 36N
Tenerife Island 28N
Mauno Loa 19N
Christmas Island 2N
Wollongong, Australia 34S
Arrival Hts, Antarctica 78S
CandidateTotal Column Carbon Network (TCCN)
Ny Ålesund, Norway 79N
Bremen, Germany 53N
Park Falls, Wisconsin 46N
Billings, Oklahoma 37N
Darwin, Australia 12S
Lauder, New Zealand 45S
0.1% precision, accuracy 0.68% offset !!
Observations at 79°N (Spitsbergen) FTS
Notholt et al., GRL, 2005
testing and calibration
Accurate forecasting of future climate requires an improved understanding of the global carbon cycle and its interaction with the Earth System
OCO will make the first space-based measurements of CO2 with the accuracy needed to quantify sources and sinks of this important greenhouse gas.