Works matching AU Hirofumi Ohyama


Results: 34
    1

    Nitrous Oxide Profiling from Infrared Radiances (NOPIR): Algorithm Description, Application to 10 Years of IASI Observations and Quality Assessment.

    Published in:
    Remote Sensing, 2022, v. 14, n. 8, p. N.PAG, doi. 10.3390/rs14081810
    By:
    • Vandenbussche, Sophie;
    • Langerock, Bavo;
    • Vigouroux, Corinne;
    • Buschmann, Matthias;
    • Deutscher, Nicholas M.;
    • Feist, Dietrich G.;
    • García, Omaira;
    • Hannigan, James W.;
    • Hase, Frank;
    • Kivi, Rigel;
    • Kumps, Nicolas;
    • Makarova, Maria;
    • Millet, Dylan B.;
    • Morino, Isamu;
    • Nagahama, Tomoo;
    • Notholt, Justus;
    • Ohyama, Hirofumi;
    • Ortega, Ivan;
    • Petri, Christof;
    • Rettinger, Markus
    Publication type:
    Article
    2

    Bias Correction of the Ratio of Total Column CH 4 to CO 2 Retrieved from GOSAT Spectra.

    Published in:
    Remote Sensing, 2020, v. 12, n. 19, p. 3155, doi. 10.3390/rs12193155
    By:
    • Oshio, Haruki;
    • Yoshida, Yukio;
    • Matsunaga, Tsuneo;
    • Deutscher, Nicholas M.;
    • Dubey, Manvendra;
    • Griffith, David W. T.;
    • Hase, Frank;
    • Iraci, Laura T.;
    • Kivi, Rigel;
    • Liu, Cheng;
    • Morino, Isamu;
    • Notholt, Justus;
    • Oh, Young-Suk;
    • Ohyama, Hirofumi;
    • Petri, Christof;
    • Pollard, David F.;
    • Roehl, Coleen;
    • Shiomi, Kei;
    • Sussmann, Ralf;
    • Té, Yao
    Publication type:
    Article
    3
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    5

    Characteristics of interannual variability in space-based XCO2 global observations.

    Published in:
    Atmospheric Chemistry & Physics, 2023, v. 23, n. 9, p. 5355, doi. 10.5194/acp-23-5355-2023
    By:
    • Guan, Yifan;
    • Keppel-Aleks, Gretchen;
    • Doney, Scott C.;
    • Petri, Christof;
    • Pollard, Dave;
    • Wunch, Debra;
    • Hase, Frank;
    • Ohyama, Hirofumi;
    • Morino, Isamu;
    • Notholt, Justus;
    • Shiomi, Kei;
    • Strong, Kim;
    • Kivi, Rigel;
    • Buschmann, Matthias;
    • Deutscher, Nicholas;
    • Wennberg, Paul;
    • Sussmann, Ralf;
    • Velazco, Voltaire A.;
    • Té, Yao
    Publication type:
    Article
    6

    Long-term and interannual variations of atmospheric methane observed by the NIES and collaborative observation networks.

    Published in:
    Progress in Earth & Planetary Science, 2025, v. 12, n. 1, p. 1, doi. 10.1186/s40645-025-00711-9
    By:
    • Umezawa, Taku;
    • Tohjima, Yasunori;
    • Terao, Yukio;
    • Sasakawa, Motoki;
    • Müller, Astrid;
    • Saeki, Tazu;
    • Machida, Toshinobu;
    • Nakaoka, Shin-Ichiro;
    • Nara, Hideki;
    • Nomura, Shohei;
    • Nishihashi, Masahide;
    • Mukai, Hitoshi;
    • Frey, Matthias Max;
    • Morino, Isamu;
    • Ohyama, Hirofumi;
    • Yoshida, Yukio;
    • Zeng, Jiye;
    • Noda, Hibiki;
    • Saito, Makoto;
    • Matsunaga, Tsuneo
    Publication type:
    Article
    7

    The greenhouse gas observation mission with Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW): objectives, conceptual framework and scientific contributions.

    Published in:
    Progress in Earth & Planetary Science, 2025, v. 12, n. 1, p. 1, doi. 10.1186/s40645-025-00684-9
    By:
    • Tanimoto, Hiroshi;
    • Matsunaga, Tsuneo;
    • Someya, Yu;
    • Fujinawa, Tamaki;
    • Ohyama, Hirofumi;
    • Morino, Isamu;
    • Yashiro, Hisashi;
    • Sugita, Takafumi;
    • Inomata, Satoshi;
    • Müller, Astrid;
    • Saeki, Tazu;
    • Yoshida, Yukio;
    • Niwa, Yosuke;
    • Saito, Makoto;
    • Noda, Hibiki;
    • Yamashita, Yousuke;
    • Ikeda, Kohei;
    • Saigusa, Nobuko;
    • Machida, Toshinobu;
    • Frey, Matthias Max
    Publication type:
    Article
    8
    9

    Update on the GOSAT TANSO-FTS SWIR Level 2 retrieval algorithm.

    Published in:
    Atmospheric Measurement Techniques Discussions, 2022, p. 1, doi. 10.5194/amt-2022-281
    By:
    • Yu Someya;
    • Yukio Yoshida;
    • Hirofumi Ohyama;
    • Shohei Nomura;
    • Akihide Kamei;
    • Isamu Morino;
    • Hitoshi Mukai;
    • Tsuneo Matsunaga;
    • Laughner, Joshua L.;
    • Velazco, Voltaire A.;
    • Herkommer, Benedikt;
    • Yao Té;
    • Sha, Mahesh Kumar;
    • Kivi, Rigel;
    • Minqiang Zhou;
    • Young Suk Oh;
    • Deutscher, Nicholas M.;
    • Griffith, David W. T.
    Publication type:
    Article
    10
    11

    Spectral Sizing of a Coarse Spectral Resolution Satellite Sensor for XCO<sub>2</sub>.

    Published in:
    Atmospheric Measurement Techniques Discussions, 2019, p. 1, doi. 10.5194/amt-2019-227
    By:
    • Wilzewski, Jonas Simon;
    • Roiger, Anke;
    • Strandgren, Johan;
    • Landgraf, Jochen;
    • Feist, Dietrich G.;
    • Velazco, Voltaire A.;
    • Deutscher, Nicholas M.;
    • Morino, Isamu;
    • Ohyama, Hirofumi;
    • Té, Yao;
    • Kivi, Rigel;
    • Warneke, Thorsten;
    • Notholt, Justus;
    • Dubey, Manvendra;
    • Sussmann, Ralf;
    • Rettinger, Markus;
    • Hase, Frank;
    • Shiomi, Kei;
    • Butz, André
    Publication type:
    Article
    12

    Evaluation of MOPITT version 7 joint TIR-NIR XCO retrievals with TCCON.

    Published in:
    Atmospheric Measurement Techniques Discussions, 2019, p. 1, doi. 10.5194/amt-2019-201
    By:
    • Hedelius, Jacob K.;
    • Tai-Long He;
    • Jones, Dylan B. A.;
    • Buchholz, Rebecca R.;
    • De Mazière, Martine;
    • Deutscher, Nicholas M.;
    • Dubey, Manvendra K.;
    • Feist, Dietrich G.;
    • Griffith, David W. T.;
    • Hase, Frank;
    • Iraci, Laura T.;
    • Jeseck, Pascal;
    • Kiel, Matthäus;
    • Kivi, Rigel;
    • Cheng Liu;
    • Isamu Morino;
    • Notholt, Justus;
    • Young-Suk Oh;
    • Hirofumi Ohyama;
    • Pollard, David F.
    Publication type:
    Article
    13

    Building the COllaborative Carbon Column Observing Network (COCCON): Long term stability and ensemble performance of the EM27/SUN Fourier transform spectrometer.

    Published in:
    Atmospheric Measurement Techniques Discussions, 2018, p. 1, doi. 10.5194/amt-2018-146
    By:
    • Frey, Matthias;
    • Sha, Mahesh Kumar;
    • Hase, Frank;
    • Kiel, Matthäus;
    • Blumenstock, Thomas;
    • Harig, Roland;
    • Surawicz, Gregor;
    • Deutscher, Nicholas M.;
    • Shiomi, Kei;
    • Franklin, Jonathan;
    • Bösch, Hartmut;
    • Jia Chen;
    • Grutter, Michel;
    • Ohyama, Hirofumi;
    • Youwen Sun;
    • Butz, André;
    • Tsidu, Gizaw Mengistu;
    • Ene, Dragos;
    • Wunch, Debra;
    • Zhensong Cao
    Publication type:
    Article
    14

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

    Published in:
    Atmospheric Measurement Techniques Discussions, 2018, p. 1, doi. 10.5194/amt-2017-415
    By:
    • Lianghai Wu;
    • Otto Hasekamp;
    • Haili Hu;
    • 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.;
    • Hirofumi Ohyama;
    • Isamu Morino;
    • Notholt, Justus;
    • Kei Shiomi;
    • Iraci, Laura;
    • Schneider, Matthias;
    • de Maziére, Martine
    Publication type:
    Article
    15
    16

    Update on the GOSAT TANSO–FTS SWIR Level 2 retrieval algorithm.

    Published in:
    Atmospheric Measurement Techniques, 2023, v. 16, n. 6, p. 1477, doi. 10.5194/amt-16-1477-2023
    By:
    • Someya, Yu;
    • Yoshida, Yukio;
    • Ohyama, Hirofumi;
    • Nomura, Shohei;
    • Kamei, Akihide;
    • Morino, Isamu;
    • Mukai, Hitoshi;
    • Matsunaga, Tsuneo;
    • Laughner, Joshua L.;
    • Velazco, Voltaire A.;
    • Herkommer, Benedikt;
    • Té, Yao;
    • Sha, Mahesh Kumar;
    • Kivi, Rigel;
    • Zhou, Minqiang;
    • Oh, Young Suk;
    • Deutscher, Nicholas M.;
    • Griffith, David W. T.
    Publication type:
    Article
    17

    XCO2 retrieval for GOSAT and GOSAT-2 based on the FOCAL algorithm.

    Published in:
    Atmospheric Measurement Techniques, 2021, v. 14, n. 5, p. 3837, doi. 10.5194/amt-14-3837-2021
    By:
    • Noël, Stefan;
    • Reuter, Maximilian;
    • Buchwitz, Michael;
    • Borchardt, Jakob;
    • Hilker, Michael;
    • Bovensmann, Heinrich;
    • Burrows, John P.;
    • Di Noia, Antonio;
    • Suto, Hiroshi;
    • Yoshida, Yukio;
    • Buschmann, Matthias;
    • Deutscher, Nicholas M.;
    • Feist, Dietrich G.;
    • Griffith, David W. T.;
    • Hase, Frank;
    • Kivi, Rigel;
    • Morino, Isamu;
    • Notholt, Justus;
    • Ohyama, Hirofumi;
    • Petri, Christof
    Publication type:
    Article
    18

    Validation of XCO2 and XCH4 retrieved from a portable Fourier transform spectrometer with those from in situ profiles from aircraft-borne instruments.

    Published in:
    Atmospheric Measurement Techniques, 2020, v. 13, n. 10, p. 5149, doi. 10.5194/amt-13-5149-2020
    By:
    • Ohyama, Hirofumi;
    • Morino, Isamu;
    • Velazco, Voltaire A.;
    • Klausner, Theresa;
    • Bagtasa, Gerry;
    • Kiel, Matthäus;
    • Frey, Matthias;
    • Hori, Akihiro;
    • Uchino, Osamu;
    • Matsunaga, Tsuneo;
    • Deutscher, Nicholas M.;
    • DiGangi, Joshua P.;
    • Choi, Yonghoon;
    • Diskin, Glenn S.;
    • Pusede, Sally E.;
    • Fiehn, Alina;
    • Roiger, Anke;
    • Lichtenstern, Michael;
    • Schlager, Hans;
    • Wang, Pao K.
    Publication type:
    Article
    19

    Spectral sizing of a coarse-spectral-resolution satellite sensor for XCO2.

    Published in:
    Atmospheric Measurement Techniques, 2020, v. 13, n. 2, p. 731, doi. 10.5194/amt-13-731-2020
    By:
    • Wilzewski, Jonas Simon;
    • Roiger, Anke;
    • Strandgren, Johan;
    • Landgraf, Jochen;
    • Feist, Dietrich G.;
    • Velazco, Voltaire A.;
    • Deutscher, Nicholas M.;
    • Morino, Isamu;
    • Ohyama, Hirofumi;
    • Té, Yao;
    • Kivi, Rigel;
    • Warneke, Thorsten;
    • Notholt, Justus;
    • Dubey, Manvendra;
    • Sussmann, Ralf;
    • Rettinger, Markus;
    • Hase, Frank;
    • Shiomi, Kei;
    • Butz, André
    Publication type:
    Article
    20

    Evaluation of MOPITT Version 7 joint TIR–NIR XCO retrievals with TCCON.

    Published in:
    Atmospheric Measurement Techniques, 2019, v. 12, n. 10, p. 5547, doi. 10.5194/amt-12-5547-2019
    By:
    • Hedelius, Jacob K.;
    • He, Tai-Long;
    • Jones, Dylan B. A.;
    • Baier, Bianca C.;
    • Buchholz, Rebecca R.;
    • De Mazière, Martine;
    • Deutscher, Nicholas M.;
    • Dubey, Manvendra K.;
    • Feist, Dietrich G.;
    • Griffith, David W. T.;
    • Hase, Frank;
    • Iraci, Laura T.;
    • Jeseck, Pascal;
    • Kiel, Matthäus;
    • Kivi, Rigel;
    • Liu, Cheng;
    • Morino, Isamu;
    • Notholt, Justus;
    • Oh, Young-Suk;
    • Ohyama, Hirofumi
    Publication type:
    Article
    21

    Building the COllaborative Carbon Column Observing Network (COCCON): long-term stability and ensemble performance of the EM27/SUN Fourier transform spectrometer.

    Published in:
    Atmospheric Measurement Techniques, 2019, v. 12, n. 3, p. 1513, doi. 10.5194/amt-12-1513-2019
    By:
    • Frey, Matthias;
    • Sha, Mahesh K.;
    • Hase, Frank;
    • Kiel, Matthäus;
    • Blumenstock, Thomas;
    • Harig, Roland;
    • Surawicz, Gregor;
    • Deutscher, Nicholas M.;
    • Shiomi, Kei;
    • Franklin, Jonathan E.;
    • Bösch, Hartmut;
    • Chen, Jia;
    • Grutter, Michel;
    • Ohyama, Hirofumi;
    • Sun, Youwen;
    • Butz, André;
    • Mengistu Tsidu, Gizaw;
    • Ene, Dragos;
    • Wunch, Debra;
    • Cao, Zhensong
    Publication type:
    Article
    22

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

    Published in:
    Atmospheric Measurement Techniques, 2018, v. 11, n. 5, p. 3111, doi. 10.5194/amt-11-3111-2018
    By:
    • Wu, Lianghai;
    • Hasekamp, Otto;
    • Hu, Haili;
    • Landgraf, Jochen;
    • Butz, Andre;
    • aan de Brugh, Joost;
    • 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 Mazière, Martine
    Publication type:
    Article
    23
    24

    Global land mapping of satellite-observed CO 2 total columns using spatio-temporal geostatistics.

    Published in:
    International Journal of Digital Earth, 2017, v. 10, n. 4, p. 426, doi. 10.1080/17538947.2016.1156777
    By:
    • Zeng, Zhao-Cheng;
    • Lei, Liping;
    • Strong, Kimberly;
    • Jones, Dylan B. A.;
    • Guo, Lijie;
    • Liu, Min;
    • Deng, Feng;
    • Deutscher, Nicholas M.;
    • Dubey, Manvendra K.;
    • Griffith, David W. T.;
    • Hase, Frank;
    • Henderson, Bradley;
    • Kivi, Rigel;
    • Lindenmaier, Rodica;
    • Morino, Isamu;
    • Notholt, Justus;
    • Ohyama, Hirofumi;
    • Petri, Christof;
    • Sussmann, Ralf;
    • Velazco, Voltaire A.
    Publication type:
    Article
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    31

    Evaluation of Bias Correction Methods for GOSAT SWIR XH2O Using TCCON data.

    Published in:
    Remote Sensing, 2019, v. 11, n. 3, p. 290, doi. 10.3390/rs11030290
    By:
    • Trieu, Tran Thi Ngoc;
    • Morino, Isamu;
    • Ohyama, Hirofumi;
    • Uchino, Osamu;
    • Sussmann, Ralf;
    • Warneke, Thorsten;
    • Petri, Christof;
    • Kivi, Rigel;
    • Hase, Frank;
    • Pollard, David F.;
    • Deutscher, Nicholas M.;
    • Velazco, Voltaire A.;
    • Iraci, Laura T.;
    • Podolske, James R.;
    • Dubey, Manvendra K.
    Publication type:
    Article
    32
    33

    XCO<sub>2</sub> retrieval for GOSAT and GOSAT-2 based on the FOCAL algorithm.

    Published in:
    Atmospheric Measurement Techniques Discussions, 2020, p. 1, doi. 10.5194/amt-2020-453
    By:
    • Noël, Stefan;
    • Reuter, Maximilian;
    • Buchwitz, Michael;
    • Borchardt, Jakob;
    • Hilker, Michael;
    • Bovensmann, Heinrich;
    • Burrows, John P.;
    • Di Noia, Antonio;
    • Suto, Hiroshi;
    • Yoshida, Yukio;
    • Buschmann, Matthias;
    • Deutscher, Nicholas M.;
    • Feist, Dietrich G.;
    • Griffith, David W. T.;
    • Hase, Frank;
    • Kivi, Rigel;
    • Morino, Isamu;
    • Notholt, Justus;
    • Ohyama, Hirofumi;
    • Petri, Christof
    Publication type:
    Article
    34

    Validation of XCO<sub>2</sub> and XCH<sub>4</sub> retrieved from a portable Fourier transform spectrometer with those from in-situ profiles from aircraft borne instruments.

    Published in:
    Atmospheric Measurement Techniques Discussions, 2020, p. 1, doi. 10.5194/amt-2020-170
    By:
    • Ohyama, Hirofumi;
    • Isamu Morino;
    • Velazco, Voltaire A.;
    • Klausner, Theresa;
    • Bagtasa, Gerry;
    • Kiel, Matthäus;
    • Frey, Matthias;
    • Akihiro Hori;
    • Osamu Uchino;
    • Tsuneo Matsunaga;
    • Deutscher, Nicholas;
    • DiGangi, Joshua P.;
    • Yonghoon Choi;
    • Diskin, Glenn S.;
    • Pusede, Sally E.;
    • Fiehn, Alina;
    • Roiger, Anke;
    • Lichtenstern, Michael;
    • Schlager, Hans;
    • Wang, Pao K.
    Publication type:
    Article