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First 1032 results for ” K Steffen”

  1. Changes in power plant NOx emissions over Northwest Greece using a data assimilation technique

    In this work, we investigate the ability of a data assimilation technique and space-borne observa...

    Skoulidou, I., Koukouli, M., Segers, A., Manders, A., Balis, D., Stavrakou, T., van Geffen, J., Eskes, H. | Journal: Atmosphere | Volume: 12 | Year: 2021 | First page: 900 | doi: 10.3390/atmos12070900

    Publication

  2. MAX-DOAS measurements of tropospheric NO2 and HCHO in Munich and the comparison to OMI and TROPOMI satellite observations

    We present two-dimensional scanning Multi-AXis Differential Optical Absorption Spectroscopy (MAX-...

    Chan, K. L., Wiegner, M., van Geffen, J., De Smedt, I., Alberti, C., Cheng, Z., Ye, S. and Wenig, M. | Journal: Atmos. Meas. Tech. | Volume: 13 | Year: 2020 | First page: 4499 | Last page: 4520 | doi: 10.5194/amt-13-4499-2020

    Publication

  3. Satellite evidence for changes in the NO2 weekly cycle over large cities

    Anthropogenic activities, by far the largest source of NOx into the atmosphere, induce a weekly c...

    Stavrakou, T., Müller, J., Bauwens, M., Boersma, K.F. and van Geffen, J. | Journal: Sci. Rep. | Volume: 10 | Year: 2020 | First page: 10066 | doi: 10.1038/s41598-020-66891-0

    Publication

  4. Observations of Lightning NOx Production From Tropospheric Monitoring Instrument Case Studies Over the United States

    Nitrogen oxides produced by lightning (LNOx) play an important role in determining mid- and upper...

    Allen, D., Pickering, K. E., Bucsela, E., Van Geffen, J., Lapierre, J., Koshak, W., & Eskes, H. | Status: published | Journal: Journal of Geophysical Research: Atmospheres | Volume: 126 | Year: 2021 | First page: e2020JD034174 | doi: 10.1029/2020JD034174

    Publication

  5. Comprehensive Analysis of Seasonal and Geographical Variation in UVB Radiation Relevant for Vitamin D Production in Europe

    Dermal synthesis, following sun exposure, is the main source of vitamin D. This study characteriz...

    Khanna T, Shraim R, Zarkovic M, van Weele M, van Geffen J, Zgaga L. | Journal: Nutrients | Volume: 14 | Year: 2022 | First page: 5189 | Last page: 5204 | doi: 10.3390/nu14235189

    Publication