Carbon dioxide retrieval from OCO-2 satellite observations using the RemoTeC 
algorithm and validation with TCCON measurements

Wu, Lianghai; Hasekamp, Otto; Hu, Haili; Landgraf, Jochen; Butz, Andre; de Brugh, Joost aan; Aben, Ilse; Pollard, Dave F.; Griffith, David W. T.; Feist, Dietrich G.; Koshelev, Dmitry; Hase, Frank; Toon, Geoffrey C.; Ohyama, Hirofumi; Morino, Isamu; Notholt, Justus; Shiomi, Kei; Iraci, Laura; Schneider, Matthias; de Maziére, Martine; Sussman, Ralf; Kivi, Rigel; Warneke, Thorsten; Goo, Tae-Young; Té, Yao

doi:10.5194/amt-2017-415

Item

ITEM ACTIONSEXPORT

Add to Basket

Please note that a newer version of this item is available:
https://pure.mpg.de/pubman/item/item_2534790_7

DetailsSummary

Released

Journal Article

Carbon dioxide retrieval from OCO-2 satellite observations using the RemoTeC algorithm and validation with TCCON measurements

MPS-Authors

/persons/resource/persons62373

Feist, Dietrich G.
Atmospheric Remote Sensing Group, Dr. D. Feist, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society;

External Resource

http://dx.doi.org/10.5194/amt-2017-415
(Publisher version)

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

BGC2794D.pdf
(Preprint), 870KB

Supplementary Material (public)

There is no public supplementary material available

Citation

Wu, L., Hasekamp, O., Hu, H., Landgraf, J., Butz, A., de Brugh, J. a., et al. (2018). Carbon dioxide retrieval from OCO-2 satellite observations using the RemoTeC algorithm and validation with TCCON measurements. Atmospheric Measurement Techniques Discussions. doi:10.5194/amt-2017-415.

Cite as: https://hdl.handle.net/21.11116/0000-0000-3FEE-F

Abstract

In this study we present the retrieval of the column averaged dry air mole fraction of carbon dioxide (XCO2) from the Orbiting Carbon Observatory-2 (OCO-2) satellite observations using the RemoTeC algorithm, previously successfully applied to retrieval of greenhouse gas concentration from the Greenhouse Gases Observing Satellite (GOSAT). The XCO2 product has been validated with collocated ground based measurements from the Total Carbon Column Observing Network (TCCON) for almost 2 years of OCO-2 data from September 2014 to July 2016. We found that fitting an additive radiometric offset in all three spectral bands of OCO-2 significantly improved the retrieval. Based on a small correlation of the XCO2 error over land with fit residuals, we applied an a posteriori bias correction to our OCO-2 retrievals. In daily averaged results, XCO2 retrievals have a standard deviation ~ 1.30 ppm and a station-to-station variability of ~ 0.40 ppm among collocated TCCON sites. The seasonal relative accuracy (SRA) has a value of 0.52 ppm. The validation shows relatively larger difference with TCCON over high latitude areas and some specific regions like Japan.