Articles | Volume 9, issue 3
Atmos. Meas. Tech., 9, 963–972, 2016
Atmos. Meas. Tech., 9, 963–972, 2016

Research article 08 Mar 2016

Research article | 08 Mar 2016

Development of a digital mobile solar tracker

Sunil Baidar et al.

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Cited articles

Baidar, S., Oetjen, H., Coburn, S., Dix, B., Ortega, I., Sinreich, R., and Volkamer, R.: The CU Airborne MAX-DOAS instrument: vertical profiling of aerosol extinction and trace gases, Atmos. Meas. Tech., 6, 719–739,, 2013a.
Baidar, S., Volkamer, R., Alvarez II, R. J., Brewer, W. A., Davies, F., Langford, A. O., Oetjen, H., Pearson, G., Senff, C. J., and Hardesty, R. M.: Combining active and passive airborne remote sensing to quantify NO2 and Ox production near Bakersfield, CA, British Journal of Environment and Climate Change, 3, 566–586,, 2013b.
Bertleff, M.: Camera based sun tracking system for mobile platforms, Masters thesis, Karlsruhe Institute of Technology, Germany, 2014.
Bosch, H., Camy-Peyret, C., Chipperfield, M. P., Fitzenberger, R., Harder, H., Platt, U., and Pfeilsticker, K.: Upper limits of stratospheric IO and OIO inferred from center-to-limb-darkening-corrected balloon-borne solar occultation visible spectra: Implications for total gaseous iodine and stratospheric ozone, J. Geophys. Res.-Atmos., 108, 4455,, 2003.
Butz, A.: Case studies of stratospheric nitrogen, chlorine and iodine photochemistry based on balloon borne UV/Vis and IR absorption spectroscopy, PhD dissertation, Ruperto Carola University of Heidelberg, Germany, 2006.
Short summary
We present development of a digital mobile solar tracker which can be coupled simultaneously to UV–Vis and FTIR spectrometers to measure trace gases in the atmosphere. We demonstrate an angular precision of 0.052º (about 1/10 of the solar disk diameter) during research drives and verify this tracking precision from measurements of the center to limb darkening (CLD, the changing appearance of Fraunhofer lines) in the mobile direct sun DOAS spectra.