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Buchwitz, Michael

Michael Buchwitz

Group at IUP:

SCIAMACHY and CarbonSat Team (Carbon Gases Group), WG Burrows

Current Position:

Senior scientist

Research Interest:

Greenhouse gas (CH4, CO2) retrieval

Research Career:

Michael Buchwitz studied Physics at the University of
Bremen and made his Diploma in 1992 in solid state physics.
Since 1993 he is working at the Institute of Environmental Physics
(IUP) of the University of Bremen, Germany
(except for one year where he was working as software developer and project
manager at the software company Interzart AG).
Initially, in the 1990th, he participated in the specification of the
SCIAMACHY instrument and was scientific secretary of the GOME Science Advisory
Committee. In 2000 he received PhD (Dr. rer. nat.) from
University of Bremen, for his work on radiative transfer model development and
SCIAMACHY near-infrared/short-wave-infrared (NIR/SWIR) "line-absorber"
(CO, H2O, O2, CH4, CO2, ...) retrieval algorithm development. He
"invented" the WFM-DOAS retrieval algorithm which has been used for a
number of scientific publications and related SCIAMACHY CO, CH4, and CO2 data
sets and is still in use today.
Since 2001, Michael Buchwitz is leading a research group at IUP. This
"Carbon group" is responsible for most of the IUP activities related to
the carbon gases, in particular for CO, CH4 and CO2 retrieval using SCIAMACHY,
MAMAP and simulated CarbonSat observations.
M. Buchwitz participated in several national and international projects such
as the EU projects EVERGREEN, ACCENT, AMFIC, CityZen,
and MACC and several ESA projects such as PROMOTE and the ongoing projects
ADVANSE and GHG-CCI. M. Buchwitz is leading the ESA/ESRIN project ADVANSE and
is Science Leader of ESA/ESRIN's GHG-CCI project
(, which is one of several sub-projects of
ESA's Climate Change Initiative (CCI) and will deliver the European
Essential Climate Variable (ECV) Greenhouse Gases (GHG). M. Buchwitz is Lead
Author of the GHG-CCI User Requirements Document (URD, available from M. Buchwitz is co-author of more than 50
peer-reviewed publications (see below). He is a member of ESA's
Sentinel 5 Precursor Mission Advisory Group (S5P MAG).
M. Buchwitz is contributing author of the GEO Carbon Strategy Report
and is co-proposer of the CarbonSat Mission and Lead Author of the
CarbonSat Mission Requirements Document (MRD).
Additional Information:

Carbon Group website:
CarbonSat website:
Selected Publications:

Bösch, H., G. C. Toon, B. Sen, R. A. Washenfelder, P. O. Wennberg,
M. Buchwitz, R. de Beek, J. P. Burrows, D. Crisp, M. Christi, B. J. Connor,
V. Natraj, and Y. L. Yung, Space-based near-infrared CO2 measurements: Testing
the Orbiting Carbon Observatory retrieval algorithm and validation concept
using SCIAMACHY observations over Park Falls, Wisconsin, J. Geophys. Res.,
111, D23302, doi:10.1029/2006JD007080, 2006.

Bovensmann, H., M. Buchwitz, J. P. Burrows, M. Reuter, T. Krings,
K. Gerilowski, O. Schneising, J. Heymann, A. Tretner, and J. Erzinger, A
remote sensing technique for global monitoring of power plant CO2 emissions
from space and related applications, Atmos. Meas. Tech., 3, 781-811, 2010.

Bovensmann, H., J. P. Burrows, M. Buchwitz, J. Frerick, S. Noël,
V. V. Rozanov, K. V. Chance, and A. H. P. Goede, SCIAMACHY - Mission
objectives and measurement modes, J. Atmos. Sci., 56, (2), 127-150, 1999.

Buchwitz, M., Bovensmann, H., Burrows, J. P., Schneising, O., and Reuter, M.,
Global mapping of methane and carbon dioxide: From SCIAMACHY to CarbonSat,
proceedings ESA-iLEAPS-EGU conference on Earth Observation for Land-Atmosphere
Interaction Science, 3-5 Nov 2010, ESRIN, Italy, ESA Special Publications
SP-688, 2010.

Buchwitz, M., Reuter, M., Schneising, O., Heymann, J., Bovensmann, H., and
Burrows, J. P., Towards an improved CO2 retrieval algorithm for SCIAMACHY on
ENVISAT, Proceedings Atmospheric Science Conference, Barcelona, Spain, 7-11
Sept 2009, ESA Special Publication SP-676, 2009.

Buchwitz, M., O. Schneising, J. P. Burrows, H. Bovensmann, M. Reuter,
J. Notholt, First direct observation of the atmospheric CO2 year-to-year
increase from space, Atmos. Chem. Phys., 7, 4249-4256, 2007.

Buchwitz, M., I. Khlystova, H. Bovensmann, J. P. Burrows, Three years of
global carbon monoxide from SCIAMACHY: Comparison with MOPITT and first
results related to the detection of enhanced CO over cities,
Atmos. Chem. Phys., 7, 2399-2411, 2007.

Buchwitz, M., R. de Beek, S. Noël, J. P. Burrows, H. Bovensmann,
O. Schneising, I. Khlystova, M. Bruns, H. Bremer, P. Bergamaschi, S. Körner,
M. Heimann, Atmospheric carbon gases retrieved from SCIAMACHY by WFM-DOAS:
version 0.5 CO and CH4 and impact of calibration improvements on CO2
retrieval, Atmos. Chem. Phys., 6, 2727-2751, 2006

Buchwitz, M., R. de Beek, S. Noël, J. P. Burrows, H. Bovensmann, H. Bremer,
P. Bergamaschi, S. Körner, M. Heimann, Carbon monoxide, methane and carbon
dioxide columns retrieved from SCIAMACHY by WFM-DOAS: year 2003 initial data
set, Atmos. Chem. Phys., 5, 3313-3329, 2005.

Buchwitz, M., R. de Beek, J. P. Burrows, H. Bovensmann, T. Warneke,
J. Notholt, J. F. Meirink, A. P. H. Goede, P. Bergamaschi, S. Körner,
M. Heimann, and A. Schulz, Atmospheric methane and carbon dioxide from
SCIAMACHY satellite data: Initial comparison with chemistry and transport
models, Atmos. Chem. Phys., 5, 941-962, 2005.

Buchwitz, M., R. de Beek, K. Bramstedt, S. Noël, H. Bovensmann, and
J. P. Burrows, Global carbon monoxide as retrieved from SCIAMACHY by WFM-DOAS,
Atmos. Chem. Phys., 4, 1954-1960, 2004.

Buchwitz, M., V.V. Rozanov, and J.P. Burrows, A near-infrared optimized DOAS
method for the fast global retrieval of atmospheric CH4, CO, CO2, H2O, and N2O
total column amounts from SCIAMACHY Envisat-1 nadir radiances,
J. Geophys. Res. 105, 15,231-15,245, 2000.

Buchwitz, M., V.V. Rozanov, and J.P. Burrows, A correlated-k distribution
scheme for overlapping gases suitable for retrieval of atmospheric
constituents from moderate resolution radiance measurements in the
visible/near-infrared spectral region, J. Geophys. Res. 105, 15,247-15,261,

Burrows, J.P., M. Weber, M. Buchwitz, V.V. Rozanov,
A. Ladstädter-Weissenmayer, A. Richter, R. de Beek, R. Hoogen, K. Bramstedt,
K.-U. Eichmann, M. Eisinger und D. Perner, The Global Ozone Monitoring
Experiment (GOME): Mission Concept and First Scientific Results,
J. Atm. Sciences, 56, 151-175, 1999.

Kopacz, M., D. J. Jacob, J. A. Fisher, J. A. Logan, L. Zhang,
I. A. Megretskaia, R. M. Yantosca, K. Singh, D. K. Henze, J. P. Burrows,
M. Buchwitz, I. Khlystova, W. W. McMillan, J. C. Gille, D. P. Edwards,
A. Eldering, V. Thouret, and P. Nedele, Global estimates of CO sources with
high resolution by adjoint inversion of multiple satellite datasets (MOPITT,
AIRS, SCIAMACHY, TES) Atmos. Chem. Phys., 10, 855-876, 2010

Reuter, M., Bovensmann, H., Buchwitz, M., et al. (2011), Retrieval of
atmospheric CO2 with enhanced accuracy and precision from SCIAMACHY:
Validation with FTS measurements and comparison with model results,
J. Geophys. Res., 116, D04301, doi:10.1029/2010JD015047.

Reuter, M., Buchwitz, M., Schneising, O., Heymann, J., Bovensmann, H., and
Burrows, J. P., A method for improved SCIAMACHY CO2 retrieval in the presence
of optically thin clouds, Atmos. Meas. Tech., 3, 209-232, 2010.

Schneising, O., Buchwitz, M., Reuter, M., Heymann, J., Bovensmann, H.,
Burrows, J. P., Long-term analysis of carbon dioxide and methane
column-averaged mole fractions retrieved from SCIAMACHY, Atmos. Chem. Phys.,
11, 2881-2892, 2011.

Schneising, O., Buchwitz, M., Burrows, J. P., Bovensmann, H., Bergamaschi, P.,
and Peters, W., Three years of greenhouse gas column-averaged dry air mole
fractions retrieved from satellite - Part 2: Methane, Atmos. Chem. Phys., 9,
443-465, 2009.

Schneising, O., Buchwitz, M., Burrows, J. P., Bovensmann, H., Reuter, M.,
Notholt, J., Macatangay, R., and Warneke, T., Three years of greenhouse gas
column-averaged dry air mole fractions retrieved from satellite - Part 1:
Carbon dioxide, Atmos. Chem. Phys., 8, 3827-3853, 2008.

Tangborn, A., Stajner, I., Buchwitz, M., Khlystova, I., Pawson, S., Burrows,
J., Hudman, R., and Nedelec, P., Assimilation of SCIAMACHY CO observations:
Global and regional analysis of data impact, J. Geophys. Res., 114, D07307,
1-11, doi:10.1029/2008JD010781, 2009

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