Biswas, M.S., Pandithurai, G., Aslam, M.Y., Patil, R.D., Anilkumar, V., Dudhambe, S.D., Lerot, C., De Smedt, I., Van Roozendael, M., Mahajan, A.S.
Effect of Boundary Layer Evolution on Nitrogen Dioxide (NO2) and Formaldehyde (HCHO) Concentrations at a High-altitude Observatory in Western India
Aerosol and Air Quality Research, Vol: 21, issue: 3, A200193, DOI: 10.4209/aaqr.2020.05.0193, 2021
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Brenot, H., Theys, N., Clarisse, L., Van Gent, J., Hurtmans, D.R., Vandenbussche, S., Papagiannopoulos, N., Mona, L., Virtanen, T., Uppstu, A., Sofiev, M., Bugliaro, L., Vázquez-Navarro, M., Hedelt, P., Parks, M.M., Barsotti, S., Coltelli, M., Moreland, W., Scollo, S., Salerno, G., Arnold-Arias, D., Hirtl, M., Peltonen, T., Lahtinen, J., Sievers, K., Lipok, F., Rüfenacht, R., Haefele, A., Hervo, M., Wagenaar, S., Som de Cerff, W., de Laat, J., Apituley, A., Stammes, P., Laffineur, Q., Delcloo, A., Lennart, R., Rokitansky, C.-H., Vargas, A., Kerschbaum, M., Resch, C., Zopp, R., Plu, M., Peuch, V.-H., Van Roozendael, M., Wotawa, G.
EUNADICS-AV early warning system dedicated to supporting aviation in the case of a crisis from natural airborne hazards and radionuclide clouds
Natural Hazards and Earth System Sciences, Vol: 21, issue: 11, 3367-3405, DOI: 10.5194/nhess-21-3367-2021, 2021
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Carn, S.A., Krotkov, N.A., Theys, N., Li, C.
Advances in UV Satellite Monitoring of Volcanic Emissions
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 11-16 July 2021, Brussels, Belgium, Vol: , issue: , 973-976, DOI: 10.1109/IGARSS47720.2021.9554594, 2021
pdf:

Corradini, S., Guerrieri, L., Brenot, H., Clarisse, L., Merucci, L., Pardini, F., Prata, A.J., Realmuto, V.J., Stelitano, D., Theys, N.
Tropospheric Volcanic SO2 Mass and Flux Retrievals from Satellite. The Etna December 2018 Eruption
Remote Sensing, Vol: 13, issue: 11, A2225, DOI: 10.3390/rs13112225, 2021
pdf:

Dameris, M., Loyola, D.G., Nützel, M., Coldewey-Egbers, M., Lerot, C., Romahn, F., Van Roozendael, M.
Record low ozone values over the Arctic in boreal spring 2020
Atmospheric Chemistry and Physics, Vol: 21, issue: 2, 617-633, DOI: 10.5194/acp-21-617-2021, 2021
pdf:

De Leeuw, J., Schmidt, A., Witham, C.S., Theys, N., Taylor, I.A., Grainger, R.G., Pope, R.J., Haywood, J., Osborne, M., Kristiansen, N.I.
The 2019 Raikoke volcanic eruption – Part 1: Dispersion model simulations and satellite retrievals of volcanic sulfur dioxide
Atmospheric Chemistry and Physics, Vol: 21, issue: 14, 10851-10879, DOI: 10.5194/acp-21-10851-2021, 2021
pdf:

De Smedt, I., Pinardi, G., Vigouroux, C., Compernolle, S., Bais, A., Benavent, N., Boersma, F., Chan, K.-L., Donner, S., Eichmann, K.-U., Hedelt, P., Hendrick, F., Irie, H., Kumar, V., Lambert, J.-C., Langerock, B., Lerot, C., Liu, C., Loyola, D., Piters, A., Richter, A., Rivera Cárdenas, C., Romahn, F., Ryan, R.G., Sinha, V., Theys, N., Vlietinck, J., Wagner, T., Wang, T., Yu, H., Van Roozendael, M.
Comparative assessment of TROPOMI and OMI formaldehyde observations and validation against MAX-DOAS network column measurements
Atmospheric Chemistry and Physics, Vol: 21, issue: 16, 12561-12593, DOI: 10.5194/acp-21-12561-2021, 2021
pdf:

Dimitropoulou, E., Hendrick, F., Friedrich, M.M., Tack, F., Pinardi, G., Merlaud, A., Fayt, C., Hermans, C., Van Roozendael, M.
Improved TROPOMI HCHO Column Validation Using Dual-Scan MAX-DOAS Retrievals
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 11-16 July 2021, Brussels, Belgium, Vol: , issue: , 8026-8029, DOI: 10.1109/IGARSS47720.2021.9553326, 2021
pdf:

Douros, J., Eskes, H.J., Akritidis, D., Antonakaki, T., Bennouna, Y., Blechschmidt, A.-M., Bösch, T., Clark, H., Fritzsche, P., Gielen, C., Hendrick, F., Kapsomenakis, J., Kartsios, S., Katragkou, E., Melas, D., Mortier, A., Peters, E., Petersen, K., Piters, A., Richter, A., Van Roozendael, M., Schulz, M., Sudarchikova, N., Wagner, A., Zanis, P., Zerefos, C.
Validation of CAMS regional services: concentrations above the surface, Status update for March - May 2021
, Vol: , issue: , , DOI: 10.24380/d7g4-sy07, 2021
pdf:

Douros, J., Eskes, H.J., Akritidis, D., Antonakaki, T., Bennouna, Y., Blechschmidt, A.-M., Bösch, T., Clark, H., Gielen, C., Hendrick, F., Kapsomenakis, J., Kartsios, S., Katragkou, E., Melas, D., Mortier, A., Peters, E., Petersen, K., Piters, A., Richter, A., Van Roozendael, M., Schulz, M., Sudarchikova, N., Wagner, A., Zanis, P., Zerefos, C.
Validation of CAMS regional services: concentrations above the surface - status update for September - November 2020
, Vol: , issue: , , DOI: 10.24380/hzgz-xy79, 2021
pdf:

Douros, J., Eskes, H.J., Akritidis, D., Antonakaki, T., Bennouna, Y., Blechschmidt, A.-M., Bösch, T., Clark, H., Gielen, C., Hendrick, F., Kapsomenakis, J., Kartsios, S., Katragkou, E., Melas, D., Mortier, A., Petersen, K., Piters, A., Richter, A., Van Roozendael, M., Schulz, M., Sudarchikova, N., Wagner, A., Zanis, P., Zerefos, C.
Validation of CAMS regional services: concentrations above the surface - status update for December 2020 - February 2021
, Vol: , issue: , , DOI: 10.24380/tc1z-dz34, 2021
pdf:

Franco, B., Blumenstock, T., Cho, C., Clarisse, L., Clerbaux, C., Coheur, P.-F., De Mazière, M., De Smedt, I., Dorn, H.-P., Emmerichs, T., Fuchs, H., Gkatzelis, G., Griffith, D.W.T., Gromov, S., Hannigan, J.W., Hase, F., Hohaus, T., Jones, N., Kerkweg, A., Kiendler-Scharr, A., Lutsch, E., Mahieu, E., Novelli, A., Ortega, I., Paton-Walsh, C., Pommier, M., Pozzer, A., Reimer, D., Rosanka, S., Sander, R., Schneider, M., Strong, K., Tillmann, R., Van Roozendael, M., Vereecken, L., Vigouroux, C., Wahner, A., Taraborrelli, D.
Ubiquitous atmospheric production of organic acids mediated by cloud droplets
Nature, Vol: 593, issue: 7858, 233-237, DOI: 10.1038/s41586-021-03462-x, 2021
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Hubert, D., Heue, K.-P., Lambert, J.-C., Verhoelst, T., Allaart, M., Compernolle, S., Cullis, P.D., Dehn, A., Félix, C., Johnson, B.J., Keppens, A., Kollonige, D.E., Lerot, C., Loyola, D., Maata, M., Mitro, S., Mohamad, M., Piters, A., Romahn, F., Selkirk, H.B., da Silva, F.R., Stauffer, R.M., Thompson, A.M., Veefkind, J.P., Vömel, H., Witte, J.C., Zehner, C.
TROPOMI tropospheric ozone column data: geophysical assessment and comparison to ozonesondes, GOME-2B and OMI
Atmospheric Measurement Techniques, Vol: 14, issue: 12, 7405-7433, DOI: 10.5194/amt-14-7405-2021, 2021
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Huntrieser, H., Klausner, T., Aufmhoff, H., Baumann, R., Fiehn, A., Gottschaldt, K.-D., Hedelt, P., Lutz, R., Mrazovac Kurelić, S., Podraščanin, Z., Ilić, P., Theys, N., Jöckel, P., Loyola, D., Makroum, I., Mertens, M., Roiger, A.
Satellite Validation of Tropomi-SO2 Over the Balkan Region by Airborne SO2 Measurements of Coal-Fired Power Plants
Proceedings of the first international conference on sustainable environment and technologies “Create sustsainable community”, 24-25 September 2021, Belgrade, Serbia, Vol: , issue: , 79-88, DOI: 10.1364/FTS.2021.FTh4G.6, 2021
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Lamotte, C., Guth, J., Marécal, V., Cussac, M., Hamer, P.D., Theys, N., Schneider, P.
Modeling study of the impact of SO2 volcanic passive emissions on the tropospheric sulfur budget
Atmospheric Chemistry and Physics, Vol: 21, issue: 14, 11379-11404, DOI: 10.5194/acp-21-11379-2021, 2021
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Lerot, C., Hendrick, F., Van Roozendael, M., Alvarado, L.M.A., Richter, A., De Smedt, I., Theys, N., Vlietinck, J., Yu, H., Van Gent, J., Stavrakou, T., Müller, J.-F., Valks, P., Loyola, D., Irie, H., Kumar, V., Wagner, T., Schreier, S.F., Sinha, V., Wang, T., Wang, P., Retscher, C.
Glyoxal tropospheric column retrievals from TROPOMI – multi-satellite intercomparison and ground-based validation
Atmospheric Measurement Techniques, Vol: 14, issue: 12, 7775-7807, DOI: 10.5194/amt-14-7775-2021, 2021
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Liu, S., Valks, P., Pinardi, G., Xu, J., Chan, K.L., Argyrouli, A., Lutz, R., Beirle, S., Khorsandi, E., Baier, F., Huijnen, V., Bais, A., Donner, S., Dörner, S., Gratsea, M., Hendrick, F., Karagkiozidis, D., Lange, K., Piters, A.J.M., Remmers, J., Richter, A., Van Roozendael, M., Wagner, T., Wenig, M., Loyola, D.G.
An improved TROPOMI tropospheric NO2 research product over Europe
Atmospheric Measurement Techniques, Vol: 14, issue: 11, 7297-7327, DOI: 10.5194/amt-14-7297-2021, 2021
pdf:

McLinden, C.A., Adams, C.L.F., Fioletov, V., Griffin, D., Makar, P.A., Zhao, X., Kovachik, A., Dickson, N., Brown, C., Krotkov, N., Li, C., Theys, N., Hedelt, P., Loyola, D.G.
Inconsistencies in sulfur dioxide emissions from the Canadian oil sands and potential implications
Environmental Research Letters, Vol: 16, issue: 1, A014012, DOI: 10.1088/1748-9326/abcbbb, 2021
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Ojeda Lerma, Z., Rivera Cardenas, C., Friedrich, M.M., Stremme, W., Bezanilla, A., Arellano, E.J., Grutter, M.
Evaluation of OMI NO2 Vertical Columns Using MAX-DOAS Observations over Mexico City
Remote Sensing, Vol: 13, issue: 4, A761, DOI: 10.3390/rs13040761, 2021
pdf:

Piccialli, A., Lefever, K., Vandaele, A.C., Gielen, C.
Women in Astronomy in Belgium
EPSC Abstracts: Europlanet Science Congress 2021, 13 to 24 September 2021, Vol: 15, issue: , EPSC2021-581, DOI: 10.5194/epsc2021-581, 2021
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Prignon, M., Chabrillat, S., Friedrich, M., Smale, D., Strahan, S.E., Bernath, P.F., Chipperfield, M.P., Dhomse, S.S., Feng, W., Minganti, D., Servais, C., Mahieu, E.
Stratospheric Fluorine as a Tracer of Circulation Changes: Comparison Between Infrared Remote-Sensing Observations and Simulations With Five Modern Reanalyses
Journal of Geophysical Research: Atmospheres, Vol: 126, issue: 19, e2021JD034995, DOI: 10.1029/2021JD034995, 2021
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Rivera Cárdenas, C., Guarín, C., Stremme, W., Friedrich, M.M., Bezanilla, A., Rivera Ramos, D., Mendoza-Rodríguez, C. A., Grutter, M., Blumenstock, T., Hase, F.
Formaldehyde total column densities over Mexico City: comparison between multi-axis differential optical absorption spectroscopy and solar-absorption Fourier transform infrared measurements
Atmospheric Measurement Techniques, Vol: 14, issue: 1, 595-613, DOI: 10.5194/amt-14-595-2021, 2021
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Roşu, A., Constantin, D.-E., Voiculescu, M., Arseni, M., Roşu, B., Merlaud, A., Van Roozendael, M., Georgescu, P.L.
Assessment of NO2 Pollution Level during the COVID-19 Lockdown in a Romanian City
International Journal of Environmental Research and Public Health, Vol: 18, issue: 2, A544, DOI: 10.3390/ijerph18020544, 2021
pdf:

Sofieva, V.F., Lee, H.S., Tamminen, J., Lerot, C., Romahn, F., Loyola, D.G.
A method for random uncertainties validation and probing the natural variability with application to TROPOMI on board Sentinel-5P total ozone measurements
Atmospheric Measurement Techniques, Vol: 14, issue: 4, 2993-3002, DOI: 10.5194/amt-14-2993-2021, 2021
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Sofieva, V.F., Szelag, M., Tamminen, J., Kyrölä, E., Degenstein, D., Roth, C., Zawada, D., Rozanov, A., Arosio, C., Burrows, J.P., Weber, M., Laeng, A., Stiller, G.P., von Clarmann, T., Froidevaux, L., Livesey, N., Van Roozendael, M., Retscher, C.
Measurement report: regional trends of stratospheric ozone evaluated using the MErged GRIdded Dataset of Ozone Profiles (MEGRIDOP)
Atmospheric Chemistry and Physics, Vol: 21, issue: 9, 6707-6720, DOI: 10.5194/acp-21-6707-2021, 2021
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Stavrakou, T., Müller, J.-F., Bauwens, M., Doumbia, T., Elguindi, N., Darras, S., Granier, C., Smedt, I.D., Lerot, C., Van Roozendael, M., Franco, B., Clarisse, L., Clerbaux, C., Coheur, P.-F., Liu, Y., Wang, T., Shi, X., Gaubert, B., Tilmes, S., Brasseur, G.
Atmospheric Impacts of COVID-19 on NOx and VOC Levels over China Based on TROPOMI and IASI Satellite Data and Modeling
Atmosphere, Vol: 12, issue: 8, A8, DOI: 10.3390/atmos12080946, 2021
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Sun, W., Zhu, L., De Smedt, I., Bai, B., Pu, D., Chen, Y., Shu, L., Wang, D., Fu, T.-M., Wang, X., Yang, X.
Global Significant Changes in Formaldehyde (HCHO) Columns Observed From Space at the Early Stage of the COVID-19 Pandemic
Geophysical Research Letters, Vol: 48, issue: 4, 2e020GL091265, DOI: 10.1029/2020GL091265, 2021
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Tack, F., Merlaud, A., Iordache, M.-D., Pinardi, G., Dimitropoulou, E., Eskes, H., Bomans, B., Veefkind, P., Van Roozendael, M.
Assessment of the TROPOMI tropospheric NO2 product based on airborne APEX observations
Atmospheric Measurement Techniques, Vol: 14, issue: 1, 615-646, DOI: 10.5194/amt-14-615-2021, 2021
pdf:

Theys, N., Brenot, H., De Smedt, I., Lerot, C., Hedelt, P., Loyola, D., Vlietinck, J., Yu, H., Smets, B., Kervyn, F., Barrière, J., Oth, A., D'Orcyc, N., Van Roozendael, M.
Global Monitoring of Volcanic SO2 Degassing Using Sentinel-5 Precursor Tropomi
2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 11-16 July 2021, Brussels, Belgium, Vol: , issue: , 1911-1914, DOI: 10.1109/IGARSS47720.2021.9554664, 2021
pdf:

Theys, N., Fioletov, V., Li, C., De Smedt, I., Lerot, C., McLinden, C., Krotkov, N., Griffin, D., Clarisse, L., Hedelt, P., Loyola, D., Wagner, T., Kumar, V., Innes, A., Ribas, R., Hendrick, F., Vlietinck, J., Brenot, H., Van Roozendael, M.
A sulfur dioxide Covariance-Based Retrieval Algorithm (COBRA): application to TROPOMI reveals new emission sources
Atmospheric Chemistry and Physics, Vol: 21, issue: 22, 16727-16744, DOI: 10.5194/acp-21-16727-2021, 2021
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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., Zhao, X.
Intercomparison of MAX-DOAS vertical profile retrieval algorithms: studies on field data from the CINDI-2 campaign
Atmospheric Measurement Techniques, Vol: 14, issue: 1, 1-35, DOI: 10.5194/amt-14-1-2021, 2021
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Ueki, H., Takashima, H., Friedrich, M.M.
Spatiotemporal Variations of NO2 over Fukuoka Japan, Observed by Multiple MAX-DOAS and 3-D Coherent Doppler Lidar
Scientific Online Letters on the Atmosphere, Vol: 17, issue: , 69-73, DOI: 10.2151/sola.2021-011, 2021
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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., Zehner, C.
Ground-based validation of the Copernicus Sentinel-5P TROPOMI NO2 measurements with the NDACC ZSL-DOAS, MAX-DOAS and Pandonia global networks
Atmospheric Measurement Techniques, Vol: 14, issue: 1, 481-510, DOI: 10.5194/amt-14-481-2021, 2021
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Yombo Phaka, R., Merlaud, A., Pinardi, G., Mahieu, E., Hendrick, F., Friedrich, M.M., Fayt, C., Van Roozendael, M., Lomami Djibi, B., Bopili Mbotia Lepiba, R., Phuku Phuati, E., Mbungu Tsumbu, J.
First Ground-Based DOAS Measurements of NO2 at Kinshasa and Comparisons with Satellite Observations
Journal of Atmospheric and Oceanic Technology, Vol: 38, issue: 7, 1291-1304, DOI: 10.1175/JTECH-D-20-0195.1, 2021
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