Tropospheric Formaldehyde

Publications

2025

  • Ayazpour, Z., González Abad, G., Nowlan, C. R., Sun, K., Kwon, H.-A., Chan Miller, C., et al. (2025). Aura ozone monitoring instrument (OMI) Collection 4 formaldehyde products. Earth and Space Science, 12, e2024EA003792. https://doi.org/10.1029/2024EA003792

  • Fu, W., Zhu, L., Kwon, H.-A., Park, R. J., Lee, G. T., De Smedt, I., et al. (2025). Evaluating GEMS HCHO retrievals with TROPOMI product, Pandora observations, and GEOS-Chem simulations. Earth and Space Science, 12, e2024EA003894. https://doi.org/10.1029/2024EA003894

  • Huang, M., Carmichael, G. R., Bowman, K. W., De Smedt, I., Colliander, A., Cosh, M. H., Kumar, S. V., Guenther, A. B., Janz, S. J., Stauffer, R. M., Thompson, A. M., Fedkin, N. M., Swap, R. J., Bolten, J. D., and Joseph, A. T.: Reactive nitrogen in and around the northeastern and mid-Atlantic US: sources, sinks, and connections with ozone, Atmos. Chem. Phys., 25, 1449–1476, https://doi.org/10.5194/acp-25-1449-2025, 2025.

  • Liao, J., Wolfe, G. M., Kotsakis, A. E., Nicely, J. M., St. Clair, J. M., Hanisco, T. F., González Abad, G., Nowlan, C. R., Ayazpour, Z., De Smedt, I., Apel, E. C., and Hornbrook, R. S.: Validation of formaldehyde products from three satellite retrievals (OMI SAO, OMPS-NPP SAO, and OMI BIRA) in the marine atmosphere with four seasons of Atmospheric Tomography Mission (ATom) aircraft observations, Atmos. Meas. Tech., 18, 1–16, https://doi.org/10.5194/amt-18-1-2025, 2025.

  • Lin, M., Xie, Y., De Smedt, I., & Horowitz, L. W. (2025). Ozone pollution extremes in Southeast China exacerbated by reduced uptake by vegetation during hot droughts. Geophysical Research Letters, 52, e2025GL114934. https://doi.org/10.1029/2025GL114934.

  • Opacka, B., Stavrakou, T., Müller, J.-F., De Smedt, I., van Geffen, J., Marais, E. A., Horner, R. P., Millet, D. B., Wells, K. C., and Guenther, A. B.: Natural emissions of VOC and NOx over Africa constrained by TROPOMI HCHO and NO2 data using the MAGRITTEv1.1 model, Atmos. Chem. Phys., 25, 2863–2894, https://doi.org/10.5194/acp-25-2863-2025, 2025.

  • Theys, N., Yu, H., Franco, B., Clarisse, L., Volkamer, R., Cha, H., et al. (2025). Atmospheric HONO observed over global biomass burning regions using satellite observations of TROPOMI and GEMS. Journal of Geophysical Research: Atmospheres, 130, e2024JD043163. https://doi.org/10.1029/2024JD043163

  • Yu, H., De Smedt, I., Theys, N., Sneep, M., Veefkind, P., and Van Roozendael, M.: Harmonized Cloud Datasets for OMI and TROPOMI Using the O2‐O2 477 nm Absorption Band, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2025-478, 2025.

  • Wang, D., Pu, D., de Smedt, I., Zhu, L., Yang, X., Sun, W., Xia, H., Song, Z., Li, X., Li, J., Zhang, A., Feng, X., Chen, Y., Yang, X., Fu, T. M., & Wang, J. (2025). Evolution of global O3-NOx-VOCs sensitivity before and after the COVID-19 from the ratio of formaldehyde to NO2 from satellite observations. Journal of Environmental Sciences, 156, 102–113. https://doi.org/10.1016/J.JES.2024.07.029

  • Zhang, Y., Yu, H., De Smedt, I., Lin, J., Theys, N., Van Roozendael, M., Pinardi, G., Compernolle, S., Ni, R., Ren, F., Wang, S., Chen, L., Van Geffen, J., Liu, M., Cede, A. M., Tiefengraber, M., Merlaud, A., Friedrich, M. M., Richter, A., Piters, A., Kumar, V., Sinha, V., Wagner, T., Choi, Y., Takashima, H., Kanaya, Y., Irie, H., Spurr, R., Sun, W., and Fabris, L.: Global retrieval of TROPOMI tropospheric HCHO and NO2 columns with improved consistency based on the updated Peking University OMI NO2 algorithm, Atmos. Meas. Tech., 18, 1561–1589, https://doi.org/10.5194/amt-18-1561-2025, 2025.

 

2020-2024

  • Ayazpour, Zolal, Gonzalo González Abad, Caroline R. Nowlan, et al. Aura Ozone Monitoring Instrument (OMI) Collection 4 Formaldehyde Product. ESS Open Archive . June 10, 2024.
  • Elshorbany, Y., Ziemke, J., Strode, S., Petetin, H., Miyazaki, K., De Smedt, I., Pickering, K., Seguel, R., Worden, H., Emmerichs, T., Taraborrelli, D., Cazorla, M., Fadnavis, S., Buchholz, R., Gaubert, B., Rojas, N., Nogueira, T., Salameh, T., and Huang, M.: Tropospheric Ozone Precursors: Global and Regional Distributions, Trends and Variability, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-720, 2024.
  • Fadnavis, S., Elshorbany, Y., Ziemke, J., Barret, B., Rap, A., Chandran, P. R. S., Pope, R., Sagar, V., Taraborrelli, D., Le Flochmoen, E., Cuesta, J., Wespes, C., Boersma, F., Glissenaar, I., De Smedt, I., Van Roozendael, M., Petetin, H., and Anglou, I.: Influence of nitrogen oxides and volatile organic compounds emission changes on tropospheric ozone variability, trends and radiative effect, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-3050, 2024.
  • Ha, E. S., Park, R. J., Kwon, H.-A., Lee, G. T., Lee, S. D., Shin, S., Lee, D.-W., Hong, H., Lerot, C., De Smedt, I., Hendrick, F., and Irie, H.: First evaluation of the GEMS glyoxal products against TROPOMI and ground-based measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-589, 2024.
  • Lee, G. T., Park, R. J., Kwon, H.-A., Ha, E. S., Lee, S. D., Shin, S., Ahn, M.-H., Kang, M., Choi, Y.-S., Kim, G., Lee, D.-W., Kim, D.-R., Hong, H., Langerock, B., Vigouroux, C., Lerot, C., Hendrick, F., Pinardi, G., De Smedt, I., Van Roozendael, M., Wang, P., Chong, H., Cho, Y., and Kim, J.: First evaluation of the GEMS formaldehyde product against TROPOMI and ground-based column measurements during the in-orbit test period, Atmos. Chem. Phys., 24, 4733–4749, https://doi.org/10.5194/acp-24-4733-2024, 2024. 
  • Li, X., Zhu, L., De Smedt, I., Sun, W., Chen, Y., Shu, L., et al. (2024). Global temperature dependency of biogenic HCHO columns observed from space: Interpretation of TROPOMI results using GEOS-Chem model. Journal of Geophysical Research: Atmospheres, 129, e2024JD041784. https://doi.org/10.1029/2024JD041784
  • Müller, J.-F., Stavrakou, T., Oomen, G.-M., Opacka, B., De Smedt, I., Guenther, A., Vigouroux, C., Langerock, B., Aquino, C. A. B., Grutter, M., Hannigan, J., Hase, F., Kivi, R., Lutsch, E., Mahieu, E., Makarova, M., Metzger, J.-M., Morino, I., Murata, I., Nagahama, T., Notholt, J., Ortega, I., Palm, M., Röhling, A., Stremme, W., Strong, K., Sussmann, R., Té, Y., and Fried, A.: Bias correction of OMI HCHO columns based on FTIR and aircraft measurements and impact on top-down emission estimates, Atmos. Chem. Phys., 24, 2207–2237, https://doi.org/10.5194/acp-24-2207-2024, 2024.
  • Opacka, B., Stavrakou, T., Müller, J.-F., De Smedt, I., van Geffen, J., Marais, E. A., Horner, R. P., Millet, D. B., Wells, K. C., and Guenther, A. B.: Natural emissions of VOC and NOx over Africa constrained by TROPOMI HCHO and NO2 data using the MAGRITTEv1.1 model, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2024-2912, 2024.
  • Pu, D., Zhu, L., Shen, H., De Smedt, i., et al. Integrated satellite observations unravel the relationship between urbanization and anthropogenic non-methane volatile organic compound emissions globally. npj Clim Atmos Sci 7, 125 (2024). https://doi.org/10.1038/s41612-024-00683-5.
  • Wang, Dakang, Dongchuan Pu, Isabelle De Smedt, Lei Zhu, Xiankun Yang, Wenfu Sun, Hui Xia, Zhaolong Song, Xicheng Li, Juan Li, Aoxing Zhang, Xu Feng, Yuyang Chen, Xin Yang, Tzung-May Fu, Jinnian Wang, Evolution of global O3-NOx-VOCs sensitivity before and after the COVID-19 from the ratio of formaldehyde to NO2 from satellites observations, Journal of Environmental Sciences, https://doi.org/10.1016/j.jes.2024.07.029, 2024.

 

  • Biswas, M. S., Mali, P., Lerot, C., de Smedt, I., & Mahajan, A. S. (2023). Study of atmospheric glyoxal using multiple axis differential optical spectroscopy (MAX-DOAS) in India. Atmospheric Environment, 314, 120109. https://doi.org/10.1016/J.ATMOSENV.2023.120109.
  • Lerot, C., Müller, J.-F., Theys, N., De Smedt, I., Stavrakou, T., & Van Roozendael, M. (2023). Satellite evidence for glyoxal depletion in elevated fire plumes. Geophysical Research Letters, 50, e2022GL102195. https://doi.org/10.1029/2022GL102195.
  • Nowlan, C. R., González Abad, G., Kwon, H.-A., Ayazpour, Z., Chan Miller, C., Chance, K., et al. (2023). Global formaldehyde products from the Ozone Mapping and Profiler Suite (OMPS) nadir mappers on Suomi NPP and NOAA-20. Earth and Space Science, 10, e2022EA002643. https://doi.org/10.1029/2022EA002643.
  • Oomen, G.-M., Müller, J.-F., Stavrakou, T., De Smedt, I., Blumenstock, T., Kivi, R., Makarova, M., Palm, M., Röhling, A., Té, Y., Vigouroux, C., Friedrich, M. M., Frieß, U., Hendrick, F., Merlaud, A., Piters, A., Richter, A., Van Roozendael, M., and Wagner, T.: Weekly-derived top-down VOC fluxes over Europe from TROPOMI HCHO data in 2018–2021, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2023-1972, 2023.
  • Yombo Phaka, R., Merlaud, A., Pinardi, G., Friedrich, M. M., Van Roozendael, M., Müller, J.-F., Stavrakou, T., De Smedt, I., Hendrick, F., Dimitropoulou, E., Bopili Mbotia Lepiba, R., Phuku Phuati, E., Djibi, B. L., Jacobs, L., Fayt, C., Mbungu Tsumbu, J.-P., and Mahieu, E.: Ground-based Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) observations of NO2 and H2CO at Kinshasa and comparisons with TROPOMI observations, Atmos. Meas. Tech., 16, 5029–5050, https://doi.org/10.5194/amt-16-5029-2023, 2023.
  • Zuo, X., Sun, W., De Smedt, I., Li, X., Liu, S., Pu, D., et al. (2023). Observing downwind structures of urban HCHO plumes from space: Implications to non-methane volatile organic compound emissions. Geophysical Research Letters, 50, e2023GL106062. https://doi.org/10.1029/2023GL106062.

 

  • Bauwens, M., Verreyken, B., Stavrakou, T., Müller, J.-F., De  Smedt, I.: Spaceborne evidence for significant anthropogenic VOC trends in Asian cities over 2005–2019, Environmental Research Letters, 17 (1), 015008. https://doi.org/10.1088/1748-9326/ac46eb, 2022.
  • Levelt, P. F., Stein Zweers, D. C., Aben, I., Bauwens, M., Borsdorff, T., De Smedt, I., Eskes, H. J., Lerot, C., Loyola, D. G., Romahn, F., Stavrakou, T., Theys, N., Van Roozendael, M., Veefkind, J. P., and Verhoelst, T.: Air quality impacts of COVID-19 lockdown measures detected from space using high spatial resolution observations of multiple trace gases from Sentinel-5P/TROPOMI, Atmos. Chem. Phys., 22, 10319–10351, https://doi.org/10.5194/acp-22-10319-2022, 2022.
  • Morfopoulos, C, Müller, J-F, Stavrakou, T, et al.: Vegetation responses to climate extremes recorded by remotely sensed atmospheric formaldehyde, Glob Change Biol., 28: 1809– 1822, https://doi.org/10.1111/gcb.15880, 2022.
  • Opacka, Beata, Jean-François Müller, Trissevgeni Stavrakou, Diego G. Miralles, Akash Koppa, Brianna R. Pagán, Mark J. Potosnak, Roger Seco, Isabelle De Smedt, and Alex B. Guenther. "Impact of Drought on Isoprene Fluxes Assessed Using Field Data, Satellite-Based GLEAM Soil Moisture and HCHO Observations from OMI" Remote Sensing 14, no. 9: 2021. https://doi.org/10.3390/rs14092021, 2022.
  • Wang, P.; Holloway, T.; Bindl, M.; Harkey, M.; De Smedt, I. Ambient Formaldehyde over the United States from Ground-Based (AQS) and Satellite (OMI) Observations. Remote Sens., 14, 2191. https://doi.org/10.3390/rs14092191, 2022.
  • Wang, Y., Yang, X., Wu, K., Mei, H., De Smedt, I., Wang, S., Fan, J., Lyu, S., He, C., Long-term trends of ozone and precursors from 2013 to 2020 in a megacity (Chengdu), China: Evidence of changing emissions and chemistry. Atmospheric Research, 106309. https://doi.org/10.1016/J.ATMOSRES.2022.106309, 2022.
  • Zhao, T., Mao, J., Simpson, W. R., De Smedt, I., Zhu, L., Hanisco, T. F., Wolfe, G. M., St. Clair, J. M., González Abad, G., Nowlan, C. R., Barletta, B., Meinardi, S., Blake, D. R., Apel, E. C., and Hornbrook, R. S.: Source and variability of formaldehyde (HCHO) at northern high latitudes: an integrated satellite, aircraft, and model study, Atmos. Chem. Phys., 22, 7163–7178, https://doi.org/10.5194/acp-22-7163-2022, 2022.

 

  • Biswas, M. S., Pandithurai, G., Aslam, M. Y., Patil, R. D., Anilkumar, V., Dudhambe, S. D., Lerot, C., De Smedt, I., Van Roozendael, M. and Mahajan, A. S.: Effect of Boundary Layer Evolution on Nitrogen Dioxide (NO2) and Formaldehyde (HCHO) Concentrations at a High-altitude Observatory in Western India, Aerosol Air Qual. Res., 21(3), 200193, doi:10.4209/aaqr.2020.05.0193, 2021.
  • De Smedt, I., Pinardi, G., Vigouroux, C., Compernolle, S., Bais, A., Benavent, N., Boersma, F., Chan, K.-L., Donner, S., Eichmann, K.-U., Hedelt, P., Hendrick, F., Irie, H., Kumar, V., Lambert, J.-C., Langerock, B., Lerot, C., Liu, C., Loyola, D., Piters, A., Richter, A., Rivera Cárdenas, C., Romahn, F., Ryan, R. G., Sinha, V., Theys, N., Vlietinck, J., Wagner, T., Wang, T., Yu, H., and Van Roozendael, M.: Comparative assessment of TROPOMI and OMI formaldehyde observations and validation against MAX-DOAS network column measurements, Atmos. Chem. Phys., 21, 12561–12593, https://doi.org/10.5194/acp-21-12561-2021, 2021.
  • Franco, B., Blumenstock, T., Cho, C., Clarisse, L., Clerbaux, C., Coheur, P.-F., De Mazière, M., De Smedt, I., Dorn, H.-P., Emmerichs, T., Fuchs, H., Gkatzelis, G., Griffith, D. W. T., Gromov, S., Hannigan, J. W., Hase, F., Hohaus, T., Jones, N., Kerkweg, A., Kiendler-Scharr, A., Lutsch, E., Mahieu, E., Novelli, A., Ortega, I., Paton-Walsh, C., Pommier, M., Pozzer, A., Reimer, D., Rosanka, S., Sander, R., Schneider, M., Strong, K., Tillmann, R., Van Roozendael, M., Vereecken, L., Vigouroux, C., Wahner, A. and Taraborrelli, D.: Ubiquitous atmospheric production of organic acids mediated by cloud droplets, Nature, 593(7858), 233–237, doi:10.1038/s41586-021-03462-x, 2021.
  • Lerot, C., Hendrick, F., Van Roozendael, M., Alvarado, L. M. A., Richter, A., De Smedt, I., Theys, N., Vlietinck, J., Yu, H., Van Gent, J., Stavrakou, T., Müller, J.-F., Valks, P., Loyola, D., Irie, H., Kumar, V., Wagner, T., Schreier, S. F., Sinha, V., Wang, T., Wang, P., and Retscher, C.: Glyoxal tropospheric column retrievals from TROPOMI – multi-satellite intercomparison and ground-based validation, Atmos. Meas. Tech., 14, 7775–7807, https://doi.org/10.5194/amt-14-7775-2021, 2021.
  • Sun, W., Zhu, L., De Smedt, I., Bai, B. and Pu, D.: Global Significant Changes in Formaldehyde (HCHO) Columns Observed From Space at the Early Stage of the COVID-19 Pandemic, Geophys. Res. Lett., doi:10.1029/2020GL091265, 2021.
  • Stavrakou, T., Müller, J. F., Bauwens, M., Doumbia, T., Elguindi, N., Darras, S., Granier, C., De Smedt, I., Lerot, C., Van Roozendael, M., Franco, B., Clarisse, L., Clerbaux, C., Coheur, P. F., Liu, Y., Wang, T., Shi, X., Gaubert, B., Tilmes, S. and Brasseur, G.: Atmospheric impacts of COVID-19 on NOx and VOC levels over China based on TROPOMI and IASI satellite data and modeling, Atmosphere (Basel)., 12(8), doi:10.3390/atmos12080946, 2021.

 

  • Chan, K. L., Wiegner, M., van Geffen, J., De Smedt, I., Alberti, C., Cheng, Z., Ye, S., and Wenig, M.: MAX-DOAS measurements of tropospheric NO2 and HCHO in Munich and the comparison to OMI and TROPOMI satellite observations, Atmos. Meas. Tech., 13, 4499–4520, https://doi.org/10.5194/amt-13-4499-2020, 2020.
  • Jin, X., Fiore, A., Boersma, K. F., Smedt, I. De and Valin, L.: Inferring Changes in Summertime Surface Ozone–NOx–VOC Chemistry over U.S. Urban Areas from Two Decades of Satellite and Ground-Based Observations, Environ. Sci. Technol., 54(11), 6518–6529, doi:10.1021/acs.est.9b07785, 2020.
  • Li, K., Jacob, D. J., Shen, L., Lu, X., De Smedt, I., and Liao, H.: Increases in surface ozone pollution in China from 2013 to 2019: anthropogenic and meteorological influences, Atmos. Chem. Phys., 20, 11423–11433, https://doi.org/10.5194/acp-20-11423-2020, 2020.
  • Vigouroux, C., Langerock, B., Bauer Aquino, C. A., Blumenstock, T., Cheng, Z., De Mazière, M., De Smedt, I., Grutter, M., Hannigan, J. W., Jones, N., Kivi, R., Loyola, D., Lutsch, E., Mahieu, E., Makarova, M., Metzger, J.-M., Morino, I., Murata, I., Nagahama, T., Notholt, J., Ortega, I., Palm, M., Pinardi, G., Röhling, A., Smale, D., Stremme, W., Strong, K., Sussmann, R., Té, Y., van Roozendael, M., Wang, P., and Winkler, H.: TROPOMI–Sentinel-5 Precursor formaldehyde validation using an extensive network of ground-based Fourier-transform infrared stations, Atmos. Meas. Tech., 13, 3751–3767, https://doi.org/10.5194/amt-13-3751-2020.

 

2015-2019

  •  Kwon, H.-A., Park, R. J., González Abad, G., Chance, K., Kurosu, T. P., Kim, J., Smedt, I. De, Roozendael, M. Van, Peters, E. and Burrows, J.: Description of a formaldehyde retrieval algorithm for the Geostationary Environment Monitoring Spectrometer (GEMS), Atmos. Meas. Tech., 12(7), 3551–3571, 2019.
  • Shen, L., Jacob, D. J., Zhu, L., Zhang, Q., Zheng, B., Sulprizio, M. P., Li, K., De Smedt, I., González Abad, G., Cao, H. and others: The 2005--2016 trends of formaldehyde columns over China observed by satellites: Increasing anthropogenic emissions of volatile organic compounds and decreasing agricultural fire emissions, Geophys. Res. Lett., 46(8), 4468–4475, 2019.
  • Wang, Y., Dörner, S., Donner, S., Böhnke, S., Smedt, I. De, Dickerson, R. R., Dong, Z., He, H., Li, Z., Li, Z. and others: Vertical profiles of NO 2, SO 2, HONO, HCHO, CHOCHO and aerosols derived from MAX-DOAS measurements at a rural site in the central western North China Plain and their relation to emission sources and effects of regional transport, Atmos. Chem. Phys., 19(8), 5417–5449, 2019.
  • Zyrichidou, I., Balis, D., Koukouli, M. E., Drosoglou, T., Bais, A., Gratsea, M., Gerasopoulos, E., Liora, N., Poupkou, A., Giannaros, C., Melas, D., De Smedt, I., Van Roozendael, M., Van der A, R. J., Boersma, K. F., Valks, P. and Richter, A.: Adverse results of the economic crisis: A study on the emergence of enhanced formaldehyde (HCHO) levels seen from satellites over Greek urban sites, Atmos. Res., 224, 42–51, doi:10.1016/j.atmosres.2019.03.017, 2019. 

 

  • Bai, J., de Leeuw, G., van der A, R., De Smedt, I., Theys, N., Van Roozendael, M., Sogacheva, L. and Chai, W.: Variations and photochemical transformations of atmospheric constituents in North China, Atmos. Environ., 189(June), 213–226, doi:10.1016/j.atmosenv.2018.07.004, 2018.
  • Cao, H., Fu, T.-M., Zhang, L., Henze, D. K., Miller, C. C., Lerot, C., Abad, G. G., De Smedt, I., Zhang, Q., van Roozendael, M., Hendrick, F., Chance, K., Li, J., Zheng, J., and Zhao, Y.: Adjoint inversion of Chinese non-methane volatile organic compound emissions using space-based observations of formaldehyde and glyoxal, Atmos. Chem. Phys., 18, 15017–15046, https://doi.org/10.5194/acp-18-15017-2018, 2018.
  • De Smedt, I., Theys, N., Yu, H., Danckaert, T., Lerot, C., Compernolle, S., Van Roozendael, M., Richter, A., Hilboll, A., Peters, E., Pedergnana, M., Loyola, D., Beirle, S., Wagner, T., Eskes, H., Van Geffen, J., Folkert Boersma, K. and Veefkind, P.: Algorithm theoretical baseline for formaldehyde retrievals from S5P TROPOMI and from the QA4ECV project, Atmos. Meas. Tech., 11(4), doi:10.5194/amt-11-2395-2018, 2018.
  • Nightingale, J., Boersma, K. F., Muller, J.-P., Compernolle, S., Lambert, J.-C., Blessing, S., Giering, R., Gobron, N., De Smedt, I., Coheur, P., George, M., Schulz, J. and Wood, A.: Quality Assurance Framework Development Based on Six New ECV Data Products to Enhance User Confidence for Climate Applications, Remote Sens. , 10(8), doi:10.3390/rs10081254, 2018.
  • Stavrakou, T., Müller, J. F., Bauwens, M., De Smedt, I., Van Roozendael, M. and Guenther, A.: Impact of Short-Term Climate Variability on Volatile Organic Compounds Emissions Assessed Using OMI Satellite Formaldehyde Observations, Geophys. Res. Lett., 45(16), 8681–8689, doi:10.1029/2018GL078676, 2018.
  • Zara, M., Boersma, K. F., De Smedt, I., Richter, A., Peters, E., Van Geffen, J. H. G. M., Beirle, S., Wagner, T., Van Roozendael, M., Marchenko, S., Lamsal, L. N. and Eskes, H. J.: Improved slant column density retrieval of nitrogen dioxide and formaldehyde for OMI and GOME-2A from QA4ECV: intercomparison, uncertainty characterization, and trends, Atmos. Meas. Tech., (11), 4033–4058, doi:https://doi.org/10.5194/amt-11-4033-2018, 2018.

 

  • Gielen, C., Hendrick, F., Pinardi, G., De Smedt, I., Fayt, C., Hermans, C., Stavrakou, T., Bauwens, M., Müller, J., Ndenzako, E., Nzohabonayo, P., Akimana, R., Niyonzima, S., Van Roozendael, M. and De Mazière, M.: Characterisation of Central-African aerosol and trace-gas emissions based on MAX-DOAS measurements and model simulations over, Atmos. Chem. Phys. Discuss., (2), 1–41, doi:10.5194/acp-2016-1104, 2017.
  • Jin X., Fiore, A. M., Murray, L. T., Valin, L. C., Lamsal, L. N., Duncan, B., Boersma, K. F., De Smedt, I., Gonzalez Abad, G., Chance, K., Tonnesen, G. S.: Evaluating a space-based indicator of surface ozone-NOx-VOC sensitivity over mid-latitude source regions and application to decadal trends. Journal of Geophysical Research: Atmospheres, 122. https://doi.org/10.1002/2017JD026720, 2017.
  • Lorente, A., Folkert Boersma, K., Yu, H., Dörner, S., Hilboll, A., Richter, A., Liu, M., Lamsal, L. N., Barkley, M., De Smedt, I., Van Roozendael, M., Wang, Y., Wagner, T., Beirle, S., Lin, J.-T., Krotkov, N., Stammes, P., Wang, P., Eskes, H. J., and Krol, M.: Structural uncertainty in air mass factor calculation for NO2 and HCHO satellite retrievals, Atmos. Meas. Tech., 10, 759-782, doi:10.5194/amt-10-759-2017, 2017.
  • Stavrakou, T., Muller, J.-F., Bauwens, M. and De Smedt, I.: Sources and Long-Term Trends of Ozone Precursors to Asian Pollution, in Air Pollution in Eastern Asia An Integrated Perspective., edited by Springer International Publishing AG 2017, pp. 167–189., 2017.
  • Wang, Y., Beirle, S., Lampel, J., Koukouli, M., De Smedt, I., Theys, N., … Wagner, T.: Validation of OMI, GOME-2A and GOME-2B tropospheric NO2, SO2 and HCHO products using MAX-DOAS observations from 2011 to 2014 in Wuxi, China: Investigation of the effects of priori profiles and aerosols on the satellite products. Atmospheric Chemistry and Physics, 17(8), 5007–5033. https://doi.org/10.5194/acp-17-5007-2017., 2017.
  • Zyrichidou I., Balis, N. Liora, A. Poupkou, C. Giannaros, D. Melas, M. E. KoukouliI, I. De Smedt, M. van Roozendael, R. van der A: Investigating the Impact of the Economic Recession Over Mediterranean Urban Regions on Satellite-Based Formaldehyde Columns; Comparison with Chemistry Transport Model Results. In: Karacostas T., Bais A., Nastos P. (eds) Perspectives on Atmospheric Sciences. Springer Atmospheric Sciences. Springer, Cham., 2017. 

 

  • Bauwens, M., Stavrakou, T., Muller, J. F., De Smedt, I., Van Roozendael, M., Van Der Werf, G. R., Wiedinmyer, C., Kaiser, J. W., Sindelarova, K. and Guenther, A.: Nine years of global hydrocarbon emissions based on source inversion of OMI formaldehyde observations, Atmos. Chem. Phys., 16(15), 10133–10158, doi:10.5194/acp-16-10133-2016, 2016.
  • Hassinen, S., Balis, D., Bauer, H., Begoin, M., Delcloo, A., Eleftheratos, K., Gimeno Garcia, S., Granville, J., Grossi, M., Hao, N., Hedelt, P., Hendrick, F., Hess, M., Heue, K.-P., Hovila, J., Jønch-Sørensen, H., Kalakoski, N., Kauppi, A., Kiemle, S., Kins, L., Koukouli, M. E., Kujanpää, J., Lambert, J.-C., Lang, R., Lerot, C., Loyola, D., Pedergnana, M., Pinardi, G., Romahn, F., Van Roozendael, M., Lutz, R., De Smedt, I., Stammes, P., Steinbrecht, W., Tamminen, J., Theys, N., Tilstra, L. G., Tuinder, O. N. E., Valks, P., Zerefos, C., Zimmer, W. and Zyrichidou, I.: Overview of the O3M SAF GOME-2 operational atmospheric composition and UV radiation data products and data availability, Atmos. Meas. Tech., 9(2), 383–407, doi:10.5194/amt-9-383-2016, 2016.
  • Stavrakou, T., Müller, J.-F., Bauwens, M., De Smedt, I., Lerot, C., Van Roozendael, M., Coheur, P.-F., Clerbaux, C., Boersma, K. F., van der A, R. and Song, Y.: Substantial Underestimation of Post-Harvest Burning Emissions in the North China Plain Revealed by Multi-Species Space Observations, Sci. Rep., 6, 615–619, doi:10.1038/SREP32307, 2016.
  • Zhu, L., Jacob, D. J., Kim, P. S., Fisher, J. A., Yu, K., Travis, K. R., Mickley, L. J., Yantosca, R. M., Sulprizio, M. P., De Smedt, I., González Abad, G., Chance, K., Li, C., Ferrare, R., Fried, A., Hair, J. W., Hanisco, T. F., Richter, D., Jo Scarino, A., Walega, J., Weibring, P., and Wolfe, G. M.: Observing atmospheric formaldehyde (HCHO) from space: validation and intercomparison of six retrievals from four satellites (OMI, GOME2A, GOME2B, OMPS) with SEAC4RS aircraft observations over the southeast US, Atmos. Chem. Phys., 16, 13477–13490, https://doi.org/10.5194/acp-16-13477-2016, 2016.
  • De Smedt, I., Stavrakou, T., Hendrick, F., Danckaert, T., Vlemmix, T., Pinardi, G., Theys, N., Lerot, C., Gielen, C., Vigouroux, C., Hermans, C., Fayt, C., Veefkind, P., Müller, J.-F., and Van Roozendael, M.: Diurnal, seasonal and long-term variations of global formaldehyde columns inferred from combined OMI and GOME-2 observations, Atmos. Chem. Phys., 15, 12519–12545, https://doi.org/10.5194/acp-15-12519-2015, 2015

 

2010-2014 

  • De Smedt, I., Van Roozendael, M., Stavrakou, T., Müller, J.-F., Lerot, C., Theys, N., Valks, P., Hao, N., and van der A, R.: Improved retrieval of global tropospheric formaldehyde columns from GOME-2/MetOp-A addressing noise reduction and instrumental degradation issues, Atmos. Meas. Tech., 5, 2933-2949, doi:10.5194/amt-5-2933-2012, 2012.
  • De Smedt, I., Stavrakou, T., Müller, J. F., van Der A, R. J. and Van Roozendael, M.: Trend detection in satellite observations of formaldehyde tropospheric columns, Geophys. Res. Lett., 37(18), L18808, doi:10.1029/2010GL044245, 2010.
  • Khokhar, M. F., Khalid, T., Yasmin, N. and De Smedt, I.: Spatio-Temporal Analyses of Formaldehyde over Pakistan by Using SCIAMACHY and GOME-2 Observations, Aerosol Air Qual. Res., 1–14, doi:10.4209/aaqr.2014.12.0339, 2015.
  • Mahajan, A. S., De Smedt, I., Biswas, M. S., Ghude, S., Fadnavis, S., Roy, C. and van Roozendael, M.: Inter-annual variations in satellite observations of nitrogen dioxide and formaldehyde over India, Atmos. Environ., 116, 194–201, doi:10.1016/j.atmosenv.2015.06.004, 2015.
  • Stavrakou, T., Müller, J.-F., Bauwens, M., De Smedt, I., Van Roozendael, M., De Mazière, M., Vigouroux, C., Hendrick, F., George, M., Clerbaux, C., Coheur, P.-F., and Guenther, A.: How consistent are top-down hydrocarbon emissions based on formaldehyde observations from GOME-2 and OMI?, Atmos. Chem. Phys., 15, 11861–11884, https://doi.org/10.5194/acp-15-11861-2015, 2015
  • Vlemmix, T., Hendrick, F., Pinardi, G., Smedt, I. De, Fayt, C., Hermans, C., Piters, A., Wang, P. and Levelt, P.: MAX-DOAS observations of aerosols , formaldehyde and nitrogen dioxide in the Beijing area : comparison of two profile retrieval, Atmos. Meas. Tech., (2), 941–963, doi:10.5194/amt-8-941-2015, 2015.
  • Stavrakou, T., Müller, J.-F. F. J.-F. J.-F., Bauwens, M., De Smedt, I., Van Roozendael, M., Guenther, A., Wild, M. and Xia, X.: Isoprene emissions over Asia 1979--2012: impact of climate and land-use changes, Atmos. Chem. Phys., 14(9), 4587–4605, doi:10.5194/acp-14-4587-2014, 2014.
  • Barkley, M. P., De Smedt, I., Van Roozendael, M., Kurosu, T. P., Chance, K. V, Arneth, A., Hagberg, D., Guenther, A. B., Paulot, F., Marais, E. A., others and Mao, J.: Top-down isoprene emissions over tropical South America inferred from SCIAMACHY and OMI formaldehyde columns, J. Geophys. Res. Atmos., 118(12), n/a-n/a, doi:10.1002/jgrd.50552, 2013.
  • Hewson, W., Bösch, H., Barkley, M. P. and De Smedt, I.: Characterisation of GOME-2 formaldehyde retrieval sensitivity, Atmos. Meas. Tech., 6(2), 371–386, doi:10.5194/amt-6-371-2013, 2013.
  • Grossmann, K., Dorf, M., Kenntner, M., Catoire, V., Schlager, H., Hendrick, F., De Smedt, I. and Huan, Y.: DOAS observations over Borneo during the SHIVA aircraft campaign, Malaysian J. Sci., 32, 259–265, 2013.
  • Barkley, M. P., Kurosu, T. P., Chance, K., De Smedt, I., Van Roozendael, M., Arneth, A., Hagberg, D. and Guenther, A.: Assessing sources of uncertainty in formaldehyde air mass factors over tropical South America: Implications for top-down isoprene emission estimates, J. Geophys. Res., 117(D13), D13304, doi:10.1029/2011JD016827, 2012.
  • Barkley, M. P., Palmer, P. I., Ganzeveld, L., Arneth, A., Hagberg, D., Karl, T., Guenther, A., Paulot, F., Wennberg, P. O., Mao, J., Kurosu, T. P., et al.: Can a “state of the art” chemistry transport model simulate Amazonian tropospheric chemistry?, J. Geophys. Res., 116(D16), D16302, doi:10.1029/2011JD015893, 2011.
  • Gonzi, S., Palmer, P. I., Barkley, M. P., De Smedt, I. and Van Roozendael, M.: Biomass burning emission estimates inferred from satellite column measurements of HCHO: Sensitivity to co-emitted aerosol and injection height, Geophys. Res. Lett., 38(14), L14807, doi:10.1029/2011GL047890, 2011. 

 

2005-2009 

  • Barkley, M., P. Palmer, De Smedt, I., T. Karl, A. Guenther, and M. Van Roozendael: Regulated large-scale annual shutdown of Amazonian isoprene emissions?, Geophys. Res. Lett., 36(L04803), 1-5, doi:10.1029/2008GL036843, 2009.
  • De Smedt, I., Müller, J.-F., Stavrakou, T., van der A, R., Eskes, H. and Van Roozendael, M.: Twelve years of global observations of formaldehyde in the troposphere using GOME and SCIAMACHY sensors, Atmos. Chem. Phys., 8(16), 4947–4963, 2008.
  • Stavrakou, T., J. Müller, De Smedt, I., M. Van Roozendael, G. R. van Der Werf, L. Giglio, and A. Guenther: Evaluating the performance of pyrogenic and biogenic emission inventories against one decade of space-based formaldehyde columns, Atmos. Chem. Phys., 9(3), 1037-1060, 2009a.
  • Stavrakou, T., J. Müller, De Smedt, I., M. Van Roozendael, G. R. van Der Werf, L. Giglio, and A. Guenther: Global emissions of non-methane hydrocarbons deduced from SCIAMACHY formaldehyde columns through 2003–2006, Atmos. Chem. Phys., 9, 3663-3679, 2009b.
  • Vigouroux, C., F. Hendrick, T. Stavrakou, B. Dils, De Smedt, I., C. Hermans, et al.: Ground-based FTIR and MAX-DOAS observations of formaldehyde at Réunion Island and comparisons with satellite and model data, Atmos. Chem. Phys., 9(24), 9523-9544, 2009.
  • Müller, J., T. Stavrakou, S. Wallens, De Smedt, I., M. Van Roozendael, M. J. Potosnak, J. Rinne, B. Munger, A. Goldstein, and A. Guenther: Global isoprene emissions estimated using MEGAN, ECMWF analyses and a detailed canopy environment model, Atmos. Chem. Phys., 8(5), 1329-1341, 2008.
  • Stavrakou, T., J. Müller, K. F. Boersma, De Smedt, I., and R. Van Der A: Assessing the distribution and growth rates of NOx emission sources by inverting a 10-year record of NO2 satellite columns, Geophys. Res. Lett., 35(10), 2-6, doi:10.1029/2008GL033521, 2008.

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https://orcid.org/0000-0002-3541-7725