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Characteristics of greenhouse gas concentrations derived from ground-based FTS spectra at Anmyeondo, South Korea

Oh, Young-Suk and Kenea, S. Takele and Goo, Tae-Young and Chung, Kyu-Sun and Rhee, Jae-Sang and Ou, Mi-Lim and Byun, Young-Hwa and Wennberg, Paul O. and Kiel, Matthäus and DiGangi, Joshua P. and Diskin, Glenn S. and Velazco, Voltaire A. and Griffith, David W. T. (2018) Characteristics of greenhouse gas concentrations derived from ground-based FTS spectra at Anmyeondo, South Korea. Atmospheric Measurement Techniques, 11 (4). pp. 2361-2374. ISSN 1867-8548. https://resolver.caltech.edu/CaltechAUTHORS:20180427-153025621

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Abstract

Since the late 1990s, the meteorological observatory established in Anmyeondo (36.5382° N, 126.3311° E, and 30 m above mean sea level) has been monitoring several greenhouse gases such as CO_2, CH_4, N_2O, CFCs, and SF_6 as a part of the Global Atmosphere Watch (GAW) Program. A high resolution ground-based (g-b) Fourier transform spectrometer (FTS) was installed at this observation site in 2013 and has been operated within the frame work of the Total Carbon Column Observing Network (TCCON) since August 2014. The solar spectra recorded by the g-b FTS cover the spectral range 3800 to 16 000 cm^(−1) at a resolution of 0.02 cm^(−1). In this work, the GGG2014 version of the TCCON standard retrieval algorithm was used to retrieve total column average CO_2 and CH_4 dry mole fractions (XCO_2, XCH_4) and from the FTS spectra. Spectral bands of CO_2 (at 6220.0 and 6339.5 cm^(−1) center wavenumbers, CH_4 at 6002 cm^(−1) wavenumber, and O_2 near 7880 cm^(−1)) were used to derive the XCO_2 and XCH_4. In this paper, we provide comparisons of XCO_2 and XCH_4 between the aircraft observations and g-b FTS over Anmyeondo station. A comparison of 13 coincident observations of XCO_2 between g-b FTS and OCO-2 (Orbiting Carbon Observatory) satellite measurements are also presented for the measurement period between February 2014 and November 2017. OCO-2 observations are highly correlated with the g-b FTS measurements (r^2 = 0.884) and exhibited a small positive bias (0.189 ppm). Both data set capture seasonal variations of the target species with maximum and minimum values in spring and late summer, respectively. In the future, it is planned to further utilize the FTS measurements for the evaluation of satellite observations such as Greenhouse Gases Observing Satellite (GOSAT, GOSAT-2). This is the first report of the g-b FTS observations of XCO_2 species over the Anmyeondo station.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.5194/amt-11-2361-2018DOIArticle
https://www.atmos-meas-tech.net/11/2361/2018PublisherArticle
ORCID:
AuthorORCID
Wennberg, Paul O.0000-0002-6126-3854
Kiel, Matthäus0000-0002-9784-962X
DiGangi, Joshua P.0000-0002-6764-8624
Diskin, Glenn S.0000-0002-3617-0269
Velazco, Voltaire A.0000-0002-1376-438X
Griffith, David W. T.0000-0002-7986-1924
Additional Information:© Author(s) 2018. This work is distributed under the Creative Commons Attribution 3.0 License. Published by Copernicus Publications on behalf of the European Geosciences Union. Received: 30 Mar 2017 – Discussion started: 18 Apr 2017. Revised: 06 Feb 2018 – Accepted: 01 Mar 2018 – Published: 25 Apr 2018. This research was supported by the Research and Development for KMA Weather, Climate, and Earth System Services (NIMS-2016-3100). David W. T. Griffith and Voltaire A. Velazco would like to acknowledge financial support from the Australian Research Council (ARC) for TCCON activities (DP160101598, DP140101552, DP110103118). We are grateful for the Jeong-Hoo Park from Park National Institute of Environmental Research and Ryan Bennett from NASA Langley Research Center and NASA’s KORUS campaign team. Many thanks go to Haeyoung Lee for accessing in situ surface data of the Anmyeondo station and Kei Shiomi and the team for the provision of Saga FTS data. We thank the OCO-2 and GOSAT science teams for the delivery of data. Finally, we strongly appreciate the two anonymous reviewers who helped us to improve this manuscript. Edited by: Justus Notholt. Reviewed by: Thomas Blumenstock and one anonymous referee.
Funders:
Funding AgencyGrant Number
Research and Development for KMA Weather, Climate, and Earth System ServicesNIMS-2016-3100
Australian Research CouncilDP160101598
Australian Research CouncilDP140101552
Australian Research CouncilDP110103118
Issue or Number:4
Record Number:CaltechAUTHORS:20180427-153025621
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20180427-153025621
Official Citation:Oh, Y.-S., Kenea, S. T., Goo, T.-Y., Chung, K.-S., Rhee, J.-S., Ou, M.-L., Byun, Y.-H., Wennberg, P. O., Kiel, M., DiGangi, J. P., Diskin, G. S., Velazco, V. A., and Griffith, D. W. T.: Characteristics of greenhouse gas concentrations derived from ground-based FTS spectra at Anmyeondo, South Korea, Atmos. Meas. Tech., 11, 2361-2374, https://doi.org/10.5194/amt-11-2361-2018, 2018
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86090
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:27 Apr 2018 22:51
Last Modified:09 Mar 2020 13:18

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