Zobrazeno 1 - 10
of 111
pro vyhledávání: '"J. P. Veefkind"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 4511-4535 (2024)
Denitrification within the stratospheric vortex is a crucial process for Antarctic ozone hole formation, resulting in an analogous stratospheric “nitrogen hole”. Sedimentation of large nitric acid trihydrate polar stratospheric cloud particles wi
Externí odkaz:
https://doaj.org/article/cfefe684d8b341a8b518f2fc2c64c390
Autor:
S. Martínez‐Alonso, J. P. Veefkind, B. Dix, B. Gaubert, N. Theys, C. Granier, A. Soulié, S. Darras, H. Eskes, W. Tang, H. Worden, J. deGouw, P. F. Levelt
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 19, Pp n/a-n/a (2023)
Abstract We have analyzed Sentinel‐5 Precursor TROPOspheric Monitoring Instrument (TROPOMI) data over the Copperbelt mining region (Democratic Republic of Congo and Zambia). Despite high background values, annual 2019–2022 means of TROPOMI NO2 (n
Externí odkaz:
https://doaj.org/article/9963ab8d863f4152a2505278479a96e9
Autor:
K. Michailidis, M.-E. Koukouli, D. Balis, J. P. Veefkind, M. de Graaf, L. Mona, N. Papagianopoulos, G. Pappalardo, I. Tsikoudi, V. Amiridis, E. Marinou, A. Gialitaki, R.-E. Mamouri, A. Nisantzi, D. Bortoli, M. João Costa, V. Salgueiro, A. Papayannis, M. Mylonaki, L. Alados-Arboledas, S. Romano, M. R. Perrone, H. Baars
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 1919-1940 (2023)
The purpose of this study is to investigate the ability of the Sentinel-5P TROPOspheric Monitoring Instrument (TROPOMI) to derive accurate geometrical features of lofted aerosol layers, selecting the Mediterranean Basin as the study area. Comparisons
Externí odkaz:
https://doaj.org/article/292954084ad040748ecd481d3f9ae089
Publikováno v:
Geoscientific Model Development, Vol 15, Pp 7031-7050 (2022)
DISAMAR (determining instrument specifications and analysing methods for atmospheric retrieval) is a computer model developed to simulate retrievals of properties of atmospheric trace gases, aerosols, clouds, and the ground surface from passive remot
Externí odkaz:
https://doaj.org/article/46daba8bbbb6432c9be4bb239e55c3c7
Autor:
P. F. Levelt, D. C. Stein Zweers, I. Aben, M. Bauwens, T. Borsdorff, I. De Smedt, H. J. Eskes, C. Lerot, D. G. Loyola, F. Romahn, T. Stavrakou, N. Theys, M. Van Roozendael, J. P. Veefkind, T. Verhoelst
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 10319-10351 (2022)
The aim of this paper is to highlight how TROPOspheric Monitoring Instrument (TROPOMI) trace gas data can best be used and interpreted to understand event-based impacts on air quality from regional to city scales around the globe. For this study, we
Externí odkaz:
https://doaj.org/article/333b8d03fbe6489485491cc6b7a0ecb9
Autor:
J. van Geffen, H. Eskes, S. Compernolle, G. Pinardi, T. Verhoelst, J.-C. Lambert, M. Sneep, M. ter Linden, A. Ludewig, K. F. Boersma, J. P. Veefkind
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 2037-2060 (2022)
Nitrogen dioxide (NO2) is one of the main data products measured by the Tropospheric Monitoring Instrument (TROPOMI) on the Sentinel-5 Precursor (S5P) satellite, which combines a high signal-to-noise ratio with daily global coverage and high spatial
Externí odkaz:
https://doaj.org/article/6a99daabdc384e0ba586429cca41d54e
Autor:
D. Hubert, K.-P. Heue, J.-C. Lambert, T. Verhoelst, M. Allaart, S. Compernolle, P. D. Cullis, A. Dehn, C. Félix, B. J. Johnson, A. Keppens, D. E. Kollonige, C. Lerot, D. Loyola, M. Maata, S. Mitro, M. Mohamad, A. Piters, F. Romahn, H. B. Selkirk, F. R. da Silva, R. M. Stauffer, A. M. Thompson, J. P. Veefkind, H. Vömel, J. C. Witte, C. Zehner
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 7405-7433 (2021)
Ozone in the troposphere affects humans and ecosystems as a pollutant and as a greenhouse gas. Observing, understanding and modelling this dual role, as well as monitoring effects of international regulations on air quality and climate change, howeve
Externí odkaz:
https://doaj.org/article/8b36420f14684dbbb7cb4fe2cac50185
Autor:
I. R. van der Velde, G. R. van der Werf, S. Houweling, H. J. Eskes, J. P. Veefkind, T. Borsdorff, I. Aben
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 597-616 (2021)
The global fire emission inventories depend on ground and airborne measurements of species-specific emission factors (EFs), which translate dry matter losses due to fires to actual trace gas and aerosol emissions. The EFs of nitrogen oxides (NOx) and
Externí odkaz:
https://doaj.org/article/bc71f554477b469cbe0127dd0c697d81
Autor:
T. Verhoelst, S. Compernolle, G. Pinardi, J.-C. Lambert, H. J. Eskes, K.-U. Eichmann, A. M. Fjæraa, J. Granville, S. Niemeijer, A. Cede, M. Tiefengraber, F. Hendrick, A. Pazmiño, A. Bais, A. Bazureau, K. F. Boersma, K. Bognar, A. Dehn, S. Donner, A. Elokhov, M. Gebetsberger, F. Goutail, M. Grutter de la Mora, A. Gruzdev, M. Gratsea, G. H. Hansen, H. Irie, N. Jepsen, Y. Kanaya, D. Karagkiozidis, R. Kivi, K. Kreher, P. F. Levelt, C. Liu, M. Müller, M. Navarro Comas, A. J. M. Piters, J.-P. Pommereau, T. Portafaix, C. Prados-Roman, O. Puentedura, R. Querel, J. Remmers, A. Richter, J. Rimmer, C. Rivera Cárdenas, L. Saavedra de Miguel, V. P. Sinyakov, W. Stremme, K. Strong, M. Van Roozendael, J. P. Veefkind, T. Wagner, F. Wittrock, M. Yela González, C. Zehner
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 481-510 (2021)
This paper reports on consolidated ground-based validation results of the atmospheric NO2 data produced operationally since April 2018 by the TROPOspheric Monitoring Instrument (TROPOMI) on board of the ESA/EU Copernicus Sentinel-5 Precursor (S5P) sa
Externí odkaz:
https://doaj.org/article/58363344ec4645f0b4d7e961a465731d
Autor:
M. L. Kooreman, P. Stammes, V. Trees, M. Sneep, L. G. Tilstra, M. de Graaf, D. C. Stein Zweers, P. Wang, O. N. E. Tuinder, J. P. Veefkind
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 6407-6426 (2020)
The ultraviolet (UV) Absorbing Aerosol Index (AAI) is widely used as an indicator for the presence of absorbing aerosols in the atmosphere. Here we consider the TROPOMI AAI based on the 340 nm/380 nm wavelength pair. We investigate the effects of
Externí odkaz:
https://doaj.org/article/4885d0fc6c9d4940b5bf017563af29d8