Articles | Volume 9, issue 7
https://doi.org/10.5194/amt-9-3455-2016
https://doi.org/10.5194/amt-9-3455-2016
Research article
 | 
29 Jul 2016
Research article |  | 29 Jul 2016

Characterisation and improvement of j(O1D) filter radiometers

Birger Bohn, Dwayne E. Heard, Nikolaos Mihalopoulos, Christian Plass-Dülmer, Rainer Schmitt, and Lisa K. Whalley

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Cited articles

Benas, N., Mourtzanou, E., Kouvarakis, G., Bais, A., Mihalopoulos, N., and Vardavas, I.: Surface ozone photolysis rate trends in the Eastern Mediterranean: Modeling the effects of aerosols and total column ozone based on Terra {MODIS} data, Atmos. Environ., 74, 1–9, https://doi.org/10.1016/j.atmosenv.2013.03.019, 2013.
Berresheim, H., Plass-Dülmer, C., Elste, T., Mihalopoulos, N., and Rohrer, F.: OH in the coastal boundary layer of Crete during MINOS: Measurements and relationship with ozone photolysis, Atmos. Chem. Phys., 3, 639–649, https://doi.org/10.5194/acp-3-639-2003, 2003.
Berresheim, H., McGrath, J., Adam, M., Mauldin, R., Bohn, B., and Rohrer, F.: Seasonal measurements of OH, NOx, and j(O1D) at Mace Head, Ireland, Geophys. Res. Lett., 40, 1659–1663, https://doi.org/10.1002/grl.50345, 2013.
Berresheim, H., Adam, M., Monahan, C., O'Dowd, C., Plane, J. M. C., Bohn, B., and Rohrer, F.: Missing SO2 oxidant in the coastal atmosphere? – observations from high-resolution measurements of OH and atmospheric sulfur compounds, Atmos. Chem. Phys., 14, 12209–12223, https://doi.org/10.5194/acp-14-12209-2014, 2014.
Bohn, B., Kraus, A., Müller, M., and Hofzumahaus, A.: Measurement of atmospheric O3  →  O(1D) photolysis frequencies using filterradiometry, J. Geophys. Res., 109, D10S90, https://doi.org/10.1029/2003JD004319, 2004.
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Short summary
Filter radiometers are instruments that quantify the rate of formation of excited oxygen atoms from photolysis of ozone in the atmosphere. The excited oxygen atoms are important for the atmospheric self-cleaning ability. The radiometers were characterised by measurements of their spectral response. Together with field comparisons with a reference instrument, the characterisations improved the performance. That will help to better understand atmospheric photochemistry in future research.
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