PowerPoint-PräsentationM. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
Retrieval of atmospheric CO2 from satellite near-infrared
nadir spectra in the frame of ESA’s climate change initiative
M.Reuter , O.Schneising , M.Buchwitz , J.Heymann, H.Bovensmann, J.P.Burrows
Institute of Environmental Physics, University of Bremen, Germany
EGU, Vienna, Austria, 08.04.2011
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
ESA’s GHG-CCI: Aims and Motivation
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
ESA’s GHG-CCI: Road Map
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
Two in-house algorithms
Yes Constant: CO2(p), aerosol, cirrus, ... Per pixel: P, T, H2O, ...
No (constant atmosphere as linearization point for RT)
Atmosphere:
ECMWF
Clouds:
Fit windows:
Compromise accuracy/speed
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
BESD XCO2
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
Validation with TCCON FTS measurements
350km
Lauder, New Zealand
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
Comparison with FTS, CarbonTracker, GOSAT
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
Statistics
Single measurement precision ~2.5ppm
Good agreement of year-to-year increase and seasonal amplitude
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
WFMD XCO2
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
Global increase
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
CO2 uptake by growing vegetation
Mean wind direction
Fnet
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
CO2 uptake by growing vegetation
Overall very good agreement
Canada: Stronger CO2 uptake ?
Russia: Weaker CO2 uptake ?
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
http://www.esa-ghg-cci.org/
More Details:
Poster: XY112
M. Buchwitz
M. Reuter, EGU, Vienna, Austria, 08.04.2011 Retrieval of atmospheric CO2 from satellite near-infrared nadir spectra in the frame of ESA’s climate change initiative
http://www.esa-ghg-cci.org/
THANKS!