Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) XCO2 measurements with TCCON

Wunch, Debra; Wennberg, Paul O.; Osterman, Gregory; Fisher, Brendan; Naylor, Bret; Roehl, Coleen M.; O'Dell, Christopher; Mandrake, Lukas; Viatte, Camille; Kiel, Matthäus; Griffith, David W. T.; Deutscher, Nicholas M.; Velazco, Voltaire A.; Notholt, Justus; Warneke, Thorsten; Petri, Christof; De Maziere, Martine; Sha, Mahesh K.; Sussmann, Ralf; Rettinger, Markus; Pollard, David; Robinson, John; Morino, Isamu; Uchino, Osamu; Hase, Frank; Blumenstock, Thomas; Feist, Dietrich G.; Arnold, Sabrina G.; Strong, Kimberly; Mendonca, Joseph; Kivi, Rigel; Heikkinen, Pauli; Iraci, Laura; Podolske, James; Hillyard, Patrick W.; Kawakami, Shuji; Dubey, Manvendra K.; Parker, Harrison A.; Sepulveda, Eliezer; García, Omaira E.; Te, Yao; Jeseck, Pascal; Gunson, Michael R.; Crisp, David; Eldering, Annmarie

doi:https://doi.org/10.5194/amt-10-2209-2017

Articles | Volume 10, issue 6

https://doi.org/10.5194/amt-10-2209-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/amt-10-2209-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 6

Research article

|

13 Jun 2017

Research article |

| 13 Jun 2017

Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) X_CO₂ measurements with TCCON

Debra Wunch, Paul O. Wennberg, Gregory Osterman, Brendan Fisher, Bret Naylor, Coleen M. Roehl, Christopher O'Dell, Lukas Mandrake, Camille Viatte, Matthäus Kiel, David W. T. Griffith, Nicholas M. Deutscher, Voltaire A. Velazco, Justus Notholt, Thorsten Warneke, Christof Petri, Martine De Maziere, Mahesh K. Sha, Ralf Sussmann, Markus Rettinger, David Pollard, John Robinson, Isamu Morino, Osamu Uchino, Frank Hase, Thomas Blumenstock, Dietrich G. Feist, Sabrina G. Arnold, Kimberly Strong, Joseph Mendonca, Rigel Kivi, Pauli Heikkinen, Laura Iraci, James Podolske, Patrick W. Hillyard, Shuji Kawakami, Manvendra K. Dubey, Harrison A. Parker, Eliezer Sepulveda, Omaira E. García, Yao Te, Pascal Jeseck, Michael R. Gunson, David Crisp, and Annmarie Eldering

Data sets

OCO-2 Level 2 bias-corrected XCO2 and other select fields from the full-physics retrieval aggregated as daily files, Retrospective processing V7r, version 7r OCO-2 Science Team/M. Gunson and A. Eldering http://oco2.gesdisc.eosdis.nasa.gov/data/s4pa/OCO2_DATA/OCO2_L2_Lite_FP.7r/

TCCON data from Park Falls, Wisconsin, USA, Release GGG2014R0 P. O. Wennberg, C. Roehl, D. Wunch, G. C. Toon, J.-F. Blavier, R. Washenfelder, G. Keppel-Aleks, N. Allen, and J. Ayers https://doi.org/10.14291/tccon.ggg2014.parkfalls01.R0/1149161

TCCON data from Lamont, Oklahoma, USA, Release GGG2014R0 P. O. Wennberg, D. Wunch, C. Roehl, J.-F. Blavier, G. C. Toon, N. Allen, P. Dowell, K. Teske, C. Martin, and J. Martin https://doi.org/10.14291/tccon.ggg2014.lamont01.R0/1149159

TCCON data from California Institute of Technology, Pasadena, California, USA, Release GGG2014R1 P. O. Wennberg, D. Wunch, C. Roehl, J.-F. L., Blavier, G. C. Toon, and N. Allen https://doi.org/10.14291/tccon.ggg2014.pasadena01.R1/1182415

TCCON data from Orleans, France, Release GGG2014R0 T. Warneke, J. Messerschmidt, J. Notholt, C. Weinzierl, N. M. Deutscher, C. Petri, P. Grupe, C. Vuillemin, F. Truong, M. Schmidt, M. Ramonet, and E. Parmentier https://doi.org/10.14291/tccon.ggg2014.orleans01.R0/1149276

TCCON data from Paris, France, Release GGG2014R0 Y. Te, P. Jeseck, and C. Janssen https://doi.org/10.14291/tccon.ggg2014.paris01.R0/1149279

TCCON data from Garmisch, Germany, Release GGG2014R0 R. Sussmann and M. Rettinger https://doi.org/10.14291/tccon.ggg2014.garmisch01.R0/1149299

TCCON data from Eureka, Canada, Release GGG2014R0 K. Strong, J. Mendonca, D. Weaver, P. Fogal, J. Drummond, R. Batchelor, and R. Lindenmaier https://doi.org/10.14291/tccon.ggg2014.eureka01.R0/1149271

TCCON data from Lauder, New Zealand, 125HR, Release GGG2014R0 V. Sherlock, B. J. Connor, J. Robinson, H. Shiona, D. Smale, and D. Pollard https://doi.org/10.14291/tccon.ggg2014.lauder02.R0/1149298

TCCON data from Bremen, Germany, Release GGG2014R0 J. Notholt, C. Petri, T. Warneke, N. M. Deutscher, M. Buschmann, C. Weinzierl, R. Macatangay, and P. Grupe https://doi.org/10.14291/tccon.ggg2014.bremen01.R0/1149275

TCCON data from Rikubetsu, Hokkaido, Japan, Release GGG2014R1 I. Morino, N. Yokozeki, T. Matzuzaki, and A. Shishime https://doi.org/10.14291/tccon.ggg2014.rikubetsu01.R1/1242265

TCCON data from Tsukuba, Ibaraki, Japan, 125HR, Release GGG2014R1 I. Morino, T. Matsuzaki, and A. Shishime https://doi.org/10.14291/tccon.ggg2014.tsukuba02.R1/1241486

TCCON data from Saga, Japan, Release GGG2014R0 S. Kawakami, H. Ohyama, K. Arai, H. Okumura, C. Taura, T. Fukamachi, and M. Sakashita https://doi.org/10.14291/tccon.ggg2014.saga01.R0/1149283

TCCON data from Armstrong Flight Research Center, Edwards, CA, USA, Release GGG2014R0 L. Iraci, J. Podolske, P. Hillyard, C. Roehl, P. O. Wennberg, J.-F. Blavier, J. Landeros, N. Allen, D. Wunch, J. Zavaleta, E. Quigley, G. Osterman, R. Albertson, K. Dunwoody, and H. Boyden https://doi.org/10.14291/tccon.ggg2014.edwards01.R0/1149289

TCCON data from Karlsruhe, Germany, Release GGG2014R1 F. Hase, T. Blumenstock, S. Dohe, J. Gross, and M. Kiel https://doi.org/10.14291/tccon.ggg2014.karlsruhe01.R1/1182416

TCCON data from Wollongong, Australia, Release GGG2014R0 D. W. T. Griffith, V. A. Velazco, N. M. Deutscher, C. Murphy, N. Jones, S. Wilson, R. Macatangay, G. Kettlewell, R. R. Buchholz, and M. Riggenbach https://doi.org/10.14291/tccon.ggg2014.wollongong01.R0/1149291

TCCON data from Darwin, Australia, Release GGG2014R0 D. W. T. Griffith, N. M. Deutscher, V. A. Velazco, P. O. Wennberg, Y. Yavin, G. K. Aleks, R. Washenfelder, G. C. Toon, J.-F. Blavier, C. Murphy, N. Jones, G. Kettlewell, B. J. Connor, R. Macatangay, C. Roehl, M. Ryczek, J. Glowacki, T. Culgan, and G. Bryant https://doi.org/10.14291/tccon.ggg2014.darwin01.R0/1149290

TCCON data from Ascension Island, Saint Helena, Ascension and Tristan da Cunha, Release GGG2014R0 D. G. Feist, S. G. Arnold, N. John, and M. C. Geibel https://doi.org/10.14291/tccon.ggg2014.ascension01.R0/1149285

TCCON data from Manaus, Brazil, Release GGG2014R0 M. Dubey, B. Henderson, D. Green, Z. Butterfield, G. Keppel-Aleks, N. Allen, J.-F. Blavier, C. Roehl, D. Wunch, and R. Lindenmaier https://doi.org/10.14291/tccon.ggg2014.manaus01.R0/1149274

TCCON data from Bialystok, Poland, Release GGG2014R1 N. M. Deutscher, J. Notholt, J. Messerschmidt, C. Weinzierl, T. Warneke, C. Petri, P. Grupe, and K. Katrynski https://doi.org/10.14291/tccon.ggg2014.bialystok01.R1/1183984

TCCON data from Reunion Island (La Reunion), France, Release GGG2014R0 M. De Maziere, M. K. Sha, F. Desmet, C. Hermans, F. Scolas, N. Kumps, J.-M. Metzger, V. Duflot, and J.-P. Cammas https://doi.org/10.14291/tccon.ggg2014.reunion01.R0/1149288

TCCON data from Izana, Tenerife, Spain, Release GGG2014R0 T. Blumenstock, F. Hase, M. Schneider, O. Garcia, and E. Sepulveda https://doi.org/10.14291/tccon.ggg2014.izana01.R0/1149295

Model code and software

RT Retrieval Framework OCO-2 Algorithm Team/M. Smyth and J. L. McDuffie https://github.com/nasa/RtRetrievalFramework

Short summary

This paper describes the comparisons between NASA's Orbiting Carbon Observatory (OCO-2) column-averaged dry-air mole fractions of CO₂ with its primary ground-based validation network, the Total Carbon Column Observing Network (TCCON). The paper shows that while the standard bias correction reduces much of the spurious variability in the satellite measurements, residual biases remain.