Explore daily measurements of five gas species (SO2, NO2, HCHO, O3, and H2O) from Toronto sites on this interactive plot. Use the legend to toggle sites, and tools to adjust the view. The plot updates automatically each day and may take a moment to load.
To view the plot in full screen, you can visit:
https://tame-bokeh.physics.utoronto.ca/Pandora_GTA_recent
To view the full timeseries of individual species, you can visit:
O3: https://tame-bokeh.physics.utoronto.ca/pandora_GTA_O3
H2O: https://tame-bokeh.physics.utoronto.ca/pandora_GTA_H2O
HCHO: https://tame-bokeh.physics.utoronto.ca/pandora_GTA_HCHO
NO2: https://tame-bokeh.physics.utoronto.ca/pandora_GTA_NO2
SO2: https://tame-bokeh.physics.utoronto.ca/pandora_GTA_SO2
For a deeper look at how these gas species are analyzed NO₂ using Pandora ground-based measurements, see:
NO₂ - Herman, J., A. Cede, E. Spinei, G. Mount, M. Tzortziou, and N. Abuhassan (2009). NO₂ column amounts from ground-based Pandora and MFDOAS spectrometers using the direct-sun DOAS technique: Intercomparisons and application to OMI validation. Journal of Geophysical Research: Atmospheres, 114, D13307. https://doi.org/10.1029/2009JD011848.
SO₂ - Fioletov, V. E., McLinden, C. A., Cede, A., Davies, J., Mihele, C., Netcheva, S., Li, S.-M., and O'Brien, J.: Sulfur dioxide (SO2) vertical column density measurements by Pandora spectrometer over the Canadian oil sands, Atmos. Meas. Tech., 9, 2961–2976, https://doi.org/10.5194/amt-9-2961-2016, 2016.
O3 - Zhao, X., Fioletov, V., Cede, A., Davies, J., and Strong, K.: Accuracy, precision, and temperature dependence of Pandora total ozone measurements estimated from a comparison with the Brewer triad in Toronto, Atmos. Meas. Tech., 9, 5747–5761, https://doi.org/10.5194/amt-9-5747-2016, 2016.
HCHO - Spinei, E., Tiefengraber, M., Müller, M., Gebetsberger, M., Cede, A., Valin, L., Szykman, J., Whitehill, A., Kotsakis, A., Santos, F., Abbuhasan, N., Zhao, X., Fioletov, V., Lee, S. C., and Swap, R.: Effect of polyoxymethylene (POM-H Delrin) off-gassing within the Pandora head sensor on direct-sun and multi-axis formaldehyde column measurements in 2016–2019, Atmos. Meas. Tech., 14, 647–663, https://doi.org/10.5194/amt-14-647-2021, 2021.