Diémoz, H., Siani, A. M., Casadio, S., Iannarelli, A. M., Casale, G. R., Savastiouk, V., Cede, A., Tiefengraber, M., and Müller, M.: Advanced NO2 retrieval technique for the Brewer spectrophotometer applied to the 20-year record in Rome, Italy, Earth Syst. Sci. Data, 13, 4929–4950,, 2021.

Annalisa Di Bernardino, Anna Maria Iannarelli, Stefano Casadio, Gabriele Mevi, Monica Campanelli, Giampietro Casasanta, Alexander Cede, Martin Tiefengraber, Anna Maria Siani, Elena Spinei, Marco Cacciani, On the effect of sea breeze regime on aerosols and gases properties in the urban area of Rome, Italy, Urban Climate, Volume 37, 2021, 100842, ISSN 2212-0955,

Tirpitz, J.-L., Frieß, U., Hendrick, F., Alberti, C., Allaart, M., Apituley, A., Bais, A., Beirle, S., Berkhout, S., Bognar, K., Bösch, T., Bruchkouski, I., Cede, A., Chan, K. L., den Hoed, M., Donner, S., Drosoglou, T., Fayt, C., Friedrich, M. M., Frumau, A., Gast, L., Gielen, C., Gomez-Martín, L., Hao, N., Hensen, A., Henzing, B., Hermans, C., Jin, J., Kreher, K., Kuhn, J., Lampel, J., Li, A., Liu, C., Liu, H., Ma, J., Merlaud, A., Peters, E., Pinardi, G., Piters, A., Platt, U., Puentedura, O., Richter, A., Schmitt, S., Spinei, E., Stein Zweers, D., Strong, K., Swart, D., Tack, F., Tiefengraber, M., van der Hoff, R., van Roozendael, M., Vlemmix, T., Vonk, J., Wagner, T., Wang, Y., Wang, Z., Wenig, M., Wiegner, M., Wittrock, F., Xie, P., Xing, C., Xu, J., Yela, M., Zhang, C., and Zhao, X.: Intercomparison of MAX-DOAS vertical profile retrieval algorithms: studies on field data from the CINDI-2 campaign, Atmos. Meas. Tech., 14, 1–35,, 2021.

Bognar, K.,  Alwarda, R.,  Strong, K.,  Chipperfield, M. P.,  Dhomse, S. S.,  Drummond, J. R., et al. (2021). Unprecedented spring 2020 ozone depletion in the context of 20 years of measurements at Eureka, Canada. Journal of Geophysical Research: Atmospheres,  126, e2020JD034365.

Zhao, X., Fioletov, V., Brohart, M., Savastiouk, V., Abboud, I., Ogyu, A., Davies, J., Sit, R., Lee, S. C., Cede, A., Tiefengraber, M., Müller, M., Griffin, D., and McLinden, C.: The world Brewer reference triad – updated performance assessment and new double triad, Atmos. Meas. Tech., 14, 2261–2283,, 2021.

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,, 2021.

Verhoelst, T., Compernolle, S., Pinardi, G., Lambert, J.-C., Eskes, H. J., Eichmann, K.-U., Fjæraa, A. M., Granville, J., Niemeijer, S., Cede, A., Tiefengraber, M., Hendrick, F., Pazmiño, A., Bais, A., Bazureau, A., Boersma, K. F., Bognar, K., Dehn, A., Donner, S., Elokhov, A., Gebetsberger, M., Goutail, F., Grutter de la Mora, M., Gruzdev, A., Gratsea, M., Hansen, G. H., Irie, H., Jepsen, N., Kanaya, Y., Karagkiozidis, D., Kivi, R., Kreher, K., Levelt, P. F., Liu, C., Müller, M., Navarro Comas, M., Piters, A. J. M., Pommereau, J.-P., Portafaix, T., Prados-Roman, C., Puentedura, O., Querel, R., Remmers, J., Richter, A., Rimmer, J., Rivera Cárdenas, C., Saavedra de Miguel, L., Sinyakov, V. P., Stremme, W., Strong, K., Van Roozendael, M., Veefkind, J. P., Wagner, T., Wittrock, F., Yela González, M., and Zehner, C.: Ground-based validation of the Copernicus Sentinel-5P TROPOMI NO2 measurements with the NDACC ZSL-DOAS, MAX-DOAS and Pandonia global networks, Atmos. Meas. Tech., 14, 481–510,, 2021.

Marais, E. A., Roberts, J. F., Ryan, R. G., Eskes, H., Boersma, K. F., Choi, S., Joiner, J., Abuhassan, N., Redondas, A., Grutter, M., Cede, A., Gomez, L., and Navarro-Comas, M.: New observations of NO2 in the upper troposphere from TROPOMI, Atmos. Meas. Tech., 14, 2389–2408,, 2021.

Pinardi, G., Van Roozendael, M., Hendrick, F., Theys, N., Abuhassan, N., Bais, A., Boersma, F., Cede, A., Chong, J., Donner, S., Drosoglou, T., Dzhola, A., Eskes, H., Frieß, U., Granville, J., Herman, J. R., Holla, R., Hovila, J., Irie, H., Kanaya, Y., Karagkiozidis, D., Kouremeti, N., Lambert, J.-C., Ma, J., Peters, E., Piters, A., Postylyakov, O., Richter, A., Remmers, J., Takashima, H., Tiefengraber, M., Valks, P., Vlemmix, T., Wagner, T., and Wittrock, F.: Validation of tropospheric NO2 column measurements of GOME-2A and OMI using MAX-DOAS and direct sun network observations, Atmos. Meas. Tech., 13, 6141–6174,, 2020.

Judd, L. M., Al-Saadi, J. A., Szykman, J. J., Valin, L. C., Janz, S. J., Kowalewski, M. G., Eskes, H. J., Veefkind, J. P., Cede, A., Mueller, M., Gebetsberger, M., Swap, R., Pierce, R. B., Nowlan, C. R., Abad, G. G., Nehrir, A., and Williams, D.: Evaluating Sentinel-5P TROPOMI tropospheric NO2 column densities with airborne and Pandora spectrometers near New York City and Long Island Sound, Atmos. Meas. Tech., 13, 6113–6140,, 2020.

Wen, G., Marshak, A., Tsay, S.-C., Herman, J., Jeong, U., Abuhassan, N., Swap, R., and Wu, D.: Changes in the surface broadband shortwave radiation budget during the 2017 eclipse, Atmos. Chem. Phys., 20, 10477–10491,, 2020.

Go, S., Jhoon Kim, Jungbin Mok, Hitoshi Irie, Jongmin Yoon, Omar Torres, Nickolay A. Krotkov, Gordon Labow, Mijin Kim, Ja-Ho Koo, Myungje Choi, Hyunkwang Lim, Ground-based retrievals of aerosol column absorption in the UV spectral region and their implications for GEMS measurements, Remote Sensing of Environment, Volume 245, 2020, 111759, ISSN 0034-4257,

Choi, S., Lamsal, L. N., Follette-Cook, M., Joiner, J., Krotkov, N. A., Swartz, W. H., Pickering, K. E., Loughner, C. P., Appel, W., Pfister, G., Saide, P. E., Cohen, R. C., Weinheimer, A. J., and Herman, J. R.: Assessment of NO2 observations during DISCOVER-AQ and KORUS-AQ field campaigns, Atmos. Meas. Tech., 13, 2523–2546,, 2020.

Kreher, K., Van Roozendael, M., Hendrick, F., Apituley, A., Dimitropoulou, E., Frieß, U., Richter, A., Wagner, T., Lampel, J., Abuhassan, N., Ang, L., Anguas, M., Bais, A., Benavent, N., Bösch, T., Bognar, K., Borovski, A., Bruchkouski, I., Cede, A., Chan, K. L., Donner, S., Drosoglou, T., Fayt, C., Finkenzeller, H., Garcia-Nieto, D., Gielen, C., Gómez-Martín, L., Hao, N., Henzing, B., Herman, J. R., Hermans, C., Hoque, S., Irie, H., Jin, J., Johnston, P., Khayyam Butt, J., Khokhar, F., Koenig, T. K., Kuhn, J., Kumar, V., Liu, C., Ma, J., Merlaud, A., Mishra, A. K., Müller, M., Navarro-Comas, M., Ostendorf, M., Pazmino, A., Peters, E., Pinardi, G., Pinharanda, M., Piters, A., Platt, U., Postylyakov, O., Prados-Roman, C., Puentedura, O., Querel, R., Saiz-Lopez, A., Schönhardt, A., Schreier, S. F., Seyler, A., Sinha, V., Spinei, E., Strong, K., Tack, F., Tian, X., Tiefengraber, M., Tirpitz, J.-L., van Gent, J., Volkamer, R., Vrekoussis, M., Wang, S., Wang, Z., Wenig, M., Wittrock, F., Xie, P. H., Xu, J., Yela, M., Zhang, C., and Zhao, X.: Intercomparison of NO2, O4, O3 and HCHO slant column measurements by MAX-DOAS and zenith-sky UV–visible spectrometers during CINDI-2, Atmos. Meas. Tech., 13, 2169–2208,, 2020.

Zhao, X., Griffin, D., Fioletov, V., McLinden, C., Cede, A., Tiefengraber, M., Müller, M., Bognar, K., Strong, K., Boersma, F., Eskes, H., Davies, J., Ogyu, A., and Lee, S. C.: Assessment of the quality of TROPOMI high-spatial-resolution NO2 data products in the Greater Toronto Area, Atmos. Meas. Tech., 13, 2131–2159,, 2020.

J. Robinson, A. Kotsakis, F. Santos, R. Swap, K.E. Knowland, G. Labow, V. Connors, M. Tzortziou, N. Abuhassan, M. Tiefengraber, A. Cede: Using networked Pandora observations to capture spatiotemporal changes in total column ozone associated with stratosphere-to-troposphere transport, Atmospheric Research, 104872, ISSN 0169-8095,, 2020.

Ialongo, I., Virta, H., Eskes, H., Hovila, J., and Douros, J.: Comparison of TROPOMI/Sentinel-5 Precursor NO2 observations with ground-based measurements in Helsinki, Atmos. Meas. Tech., 13, 205–218,, 2020.

Griffin, Debora; Zhao, Xiaoyi; McLinden, Chris A; Boersma, Folkert; Bourassa, Adam; Dammers, Enrico; Degenstein, Doug; Eskes, Henk; Fehr, Lukas; Fioletov, Vitali; , High‐resolution mapping of nitrogen dioxide with TROPOMI: First results and validation over the Canadian oil sands, Geophysical Research Letters, 46, 2, 1049-1060, 2019.

Herman, J., N. Abuhassan, J. Kim, J. Kim, M. Dubey , M. Raponi, and M. Tzortziou, Underestimation of column NO2 amounts from the OMI satellite compared to diurnally varying ground-based retrievals from multiple PANDORA spectrometer instruments, Atmos. Meas. Tech., 12, 5593–5612,, 2019.

Judd, L. M., J. A. Al-Saadi, S.J. Janz, M.G. Kowalewski, R.B. Pierce, J.J. Szykman, L.C. Valin, R. Swap, A. Cede, M. Mueller, M. Tiefengraber, N. Abuhassan, and D. Williams, Evaluating the impact of spatial resolution on tropospheric NO2 column comparisons within urban areas using high-resolution airborne data, Atmos. Meas. Tech., 12, 6091–6111,, 2019.

Zhao, X., D. Griffin, V. Fioletov, C. McLinden, J. Davies, A. Ogyu, S.C. Lee, A. Lupu, M.D. Moran, A. Cede, M. Tiefengraber, and M. Müller, Retrieval of total column and surface NO2 from Pandora zenith-sky measurements, Atmos. Chem. Phys., 19, 10619–10642,, 2019.

Szykman J., R.J. Swap, B. Lefer, L. Valin, S.C. Lee, V. Fioletov, X. Zhao, J. Davies, D. Williams, N. Abuhassan, L. Shalaby, A. Cede, M. Tiefengraber, M. Mueller, A. Kotsakis, F. Santos, and J. Robinson, Pandora Connecting in-situ and Satellite Monitoring in Support of the Canada–U.S. Air Quality Agreement, The Magazine for Environmental Managers A&WMA, June 2019, 2019.

Judd, L.M., J.A. Al-Saadi, L.C. Valin, R.B. Pierce, K. Yang, S.J. Janz, M.G. Kowalewski, J.J. Szykman, M. Tiefengraber and M. Mueller, The Dawn of Geostationary Air Quality Monitoring: Case Studies From Seoul and Los Angeles, Front. Environ. Sci. 6:85. doi: 10.3389/fenvs.2018.00085, 2018.

Spinei, E., Whitehill, A., Fried, A., Tiefengraber, M., Knepp, T. N., Herndon, S., Herman, J. R., Müller, M., Abuhassan, N., Cede, A., Richter, D., Walega, J., Crawford, J., Szykman, J., Valin, L., Williams, D. J., Long, R., Swap, R. J., Lee, Y., Nowak, N., and Poche, B.: The first evaluation of formaldehyde column observations by improved Pandora spectrometers during the KORUS-AQ field study, Atmos. Meas. Tech., 11, 4943–4961,, 2018.

Kreuter, A., Blumthaler, M., Tiefengraber, M., Kift, R., and Webb, A. R.: Sky radiance at a coastline and effects of land and ocean reflectivities, Atmos. Chem. Phys., 17, 14353–14364,, 2017.

Zhao, X., V. Fioletov, A. Cede, J. Davies, and K. Strong, 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, 2016.

Fioletov, V.E., C.A. McLinden, A. Cede, J. Davies, C. Mihele, S. Netcheva, S.-M. Li, and J. O’Brien, Sulphur dioxide (SO2) vertical column density measurements by Pandora spectrometer over the Canadian oil sands, Atmos. Meas. Tech., 9, 2961–2976, doi:10.5194/amt-9-2961-2016, 2016.

Herman, J., R. Evans, A. Cede, N. Abuhassan, I. Petropavlovskikh, and G. McConville: Comparison of ozone retrievals from the Pandora spectrometer system and Dobson spectrophotometer in Boulder, Colorado, Atmos. Meas. Tech., 8, 3407-3418, doi:10.5194/amt-8-3407-2015, 2015.

Knepp, T. et al., Estimating surface NO2 and SO2 mixing ratios from fast-response total column observations and potential application to geostationary missions, J. Atmos. Chem., DOI 10.1007/s10874-013-9257-6, 2013.

Tzortziou M., J.R. Herman, A. Cede, C.P. Loughner, N. Abuhassan, and S. Naik, Spatial and temporal variability of ozone and nitrogen dioxide over a major urban estuarine ecosystem, J. Atmos. Chem., DOI 10.1007/s10874-013-9255-8, 2013.

Reed, A.J., et al., Effects of local meteorology and aerosols on ozone and nitrogen dioxide retrievals from OMI and pandora spectrometers in Maryland, USA during DISCOVER-AQ 2011, J Atmos Chem, DOI 10.1007/s10874-013-9254-9, 2013.

Pinardi, G., et al., MAX-DOAS formaldehyde slant column measurements during CINDI: intercomparison and analysis improvement, Atmos. Meas. Tech., 6, 167-185, doi:10.5194/amt-6-167-2013, 2013.

Tzortziou, M., J.R. Herman, A. Cede, and N. Abuhassan, High precision, absolute total column ozone measurements from the Pandora spectrometer system: Comparisons with data from a Brewer double monochromator and Aura OMI, J. Geophys. Res., 117 (D16303), doi:10.1029/2012JD017814, 2012.

Pieters, A.J.M., et al., The Cabauw Intercomparison campaign for Nitrogen Dioxide Measuring Instruments (CINDI): design, execution, and early results, Atm. Meas. Tech. 5, 457-485, 2012.

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Wang, S., T. J. Pongetti, S. P. Sander, E. Spinei, G. H. Mount, A. Cede, and J. Herman, Direct Sun measurements of NO2 column abundances from Table Mountain, California: Intercomparison of low- and high-resolution spectrometers, J. Geophys. Res., 115, D13305, doi:10.1029/2009JD013503, 2010.

Herman, J., A. Cede, E. Spinei, G. Mount, M. Tzortziou, and N. Abuhassan, NO2 column amounts from ground-based Pandora and MFDOAS spectrometers using the direct-sun DOAS technique: Intercomparisons and application to OMI validation, J. Geophys. Res., 114 (D13307), 10.1029/2009JD011848, 2009.