Zobrazeno 1 - 10
of 113
pro vyhledávání: '"J. van Gent"'
Autor:
N. Theys, C. Lerot, H. Brenot, J. van Gent, I. De Smedt, L. Clarisse, M. Burton, M. Varnam, C. Hayer, B. Esse, M. Van Roozendael
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 4801-4817 (2022)
Knowledge of sulfur dioxide layer height (SO2 LH) is important to understand volcanic eruption processes, the climate impact of SO2 emissions and to mitigate volcanic risk for civil aviation. However, the estimation of SO2 LH from ground-based instru
Externí odkaz:
https://doaj.org/article/3beaac3bce7148dbb77047886466dc46
Autor:
C. Lerot, F. Hendrick, M. Van Roozendael, L. M. A. Alvarado, A. Richter, I. De Smedt, N. Theys, J. Vlietinck, H. Yu, J. Van Gent, T. Stavrakou, J.-F. Müller, P. Valks, D. Loyola, H. Irie, V. Kumar, T. Wagner, S. F. Schreier, V. Sinha, T. Wang, P. Wang, C. Retscher
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 7775-7807 (2021)
We present the first global glyoxal (CHOCHO) tropospheric column product derived from the TROPOspheric Monitoring Instrument (TROPOMI) on board the Sentinel-5 Precursor satellite. Atmospheric glyoxal results from the oxidation of other non-methane vo
Externí odkaz:
https://doaj.org/article/1137c74ce0b34b7b9f7cce7f5fd57616
Autor:
H. Brenot, N. Theys, L. Clarisse, J. van Gent, D. R. Hurtmans, S. Vandenbussche, N. Papagiannopoulos, L. Mona, T. Virtanen, A. Uppstu, M. Sofiev, L. Bugliaro, M. Vázquez-Navarro, P. Hedelt, M. M. Parks, S. Barsotti, M. Coltelli, W. Moreland, S. Scollo, G. Salerno, D. Arnold-Arias, M. Hirtl, T. Peltonen, J. Lahtinen, K. Sievers, F. Lipok, R. Rüfenacht, A. Haefele, M. Hervo, S. Wagenaar, W. Som de Cerff, J. de Laat, A. Apituley, P. Stammes, Q. Laffineur, A. Delcloo, R. Lennart, C.-H. Rokitansky, A. Vargas, M. Kerschbaum, C. Resch, R. Zopp, M. Plu, V.-H. Peuch, M. Van Roozendael, G. Wotawa
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 21, Pp 3367-3405 (2021)
The purpose of the EUNADICS-AV (European Natural Airborne Disaster Information and Coordination System for Aviation) prototype early warning system (EWS) is to develop the combined use of harmonised data products from satellite, ground-based and in s
Externí odkaz:
https://doaj.org/article/e4d686142ce94ec8a882cddb4e0e6429
Autor:
K. Kreher, M. Van Roozendael, F. Hendrick, A. Apituley, E. Dimitropoulou, U. Frieß, A. Richter, T. Wagner, J. Lampel, N. Abuhassan, L. Ang, M. Anguas, A. Bais, N. Benavent, T. Bösch, K. Bognar, A. Borovski, I. Bruchkouski, A. Cede, K. L. Chan, S. Donner, T. Drosoglou, C. Fayt, H. Finkenzeller, D. Garcia-Nieto, C. Gielen, L. Gómez-Martín, N. Hao, B. Henzing, J. R. Herman, C. Hermans, S. Hoque, H. Irie, J. Jin, P. Johnston, J. Khayyam Butt, F. Khokhar, T. K. Koenig, J. Kuhn, V. Kumar, C. Liu, J. Ma, A. Merlaud, A. K. Mishra, M. Müller, M. Navarro-Comas, M. Ostendorf, A. Pazmino, E. Peters, G. Pinardi, M. Pinharanda, A. Piters, U. Platt, O. Postylyakov, C. Prados-Roman, O. Puentedura, R. Querel, A. Saiz-Lopez, A. Schönhardt, S. F. Schreier, A. Seyler, V. Sinha, E. Spinei, K. Strong, F. Tack, X. Tian, M. Tiefengraber, J.-L. Tirpitz, J. van Gent, R. Volkamer, M. Vrekoussis, S. Wang, Z. Wang, M. Wenig, F. Wittrock, P. H. Xie, J. Xu, M. Yela, C. Zhang, X. Zhao
Publikováno v:
Atmospheric Measurement Techniques, Vol 13, Pp 2169-2208 (2020)
In September 2016, 36 spectrometers from 24 institutes measured a number of key atmospheric pollutants for a period of 17 d during the Second Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI-2) that took place at Ca
Externí odkaz:
https://doaj.org/article/c85d69ddd7c044ada349f68e0b69cf6c
Autor:
N. Theys, I. De Smedt, H. Yu, T. Danckaert, J. van Gent, C. Hörmann, T. Wagner, P. Hedelt, H. Bauer, F. Romahn, M. Pedergnana, D. Loyola, M. Van Roozendael
Publikováno v:
Atmospheric Measurement Techniques, Vol 10, Iss 1, Pp 119-153 (2017)
The TROPOspheric Monitoring Instrument (TROPOMI) onboard the Copernicus Sentinel-5 Precursor (S-5P) platform will measure ultraviolet earthshine radiances at high spectral and improved spatial resolution (pixel size of 7 km × 3.5 km at nadir) compar
Externí odkaz:
https://doaj.org/article/8c72adfc5c014f559ea71fa2a2f2b110
Autor:
H. Brenot, N. Theys, L. Clarisse, J. van Geffen, J. van Gent, M. Van Roozendael, R. van der A, D. Hurtmans, P.-F. Coheur, C. Clerbaux, P. Valks, P. Hedelt, F. Prata, O. Rasson, K. Sievers, C. Zehner
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 14, Iss 5, Pp 1099-1123 (2014)
Volcanic eruptions emit plumes of ash and gases into the atmosphere, potentially at very high altitudes. Ash-rich plumes are hazardous for airplanes as ash is very abrasive and easily melts inside their engines. With more than 50 active volcanoes per
Externí odkaz:
https://doaj.org/article/f978821cbfcc427a96b271d99d24ddf2
Autor:
N. Theys, R. Campion, L. Clarisse, H. Brenot, J. van Gent, B. Dils, S. Corradini, L. Merucci, P.-F. Coheur, M. Van Roozendael, D. Hurtmans, C. Clerbaux, S. Tait, F. Ferrucci
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 12, Pp 5945-5968 (2013)
Sulphur dioxide (SO2) fluxes of active degassing volcanoes are routinely measured with ground-based equipment to characterize and monitor volcanic activity. SO2 of unmonitored volcanoes or from explosive volcanic eruptions, can be measured with satel
Externí odkaz:
https://doaj.org/article/17af8fa52f9d4f0296fab920050dde4e
Autor:
O. Ronveaux, X. Toledo-Fuentes, J. Maes, C. Fayt, J. van Gent, M. Van Roozendael, A. Merlaud, M. De Mazière
Publikováno v:
Atmospheric Measurement Techniques, Vol 5, Iss 8, Pp 2057-2068 (2012)
We report on airborne Differential Optical Absorption Spectroscopy (DOAS) measurements of NO2 tropospheric columns above South Asia, the Arabic peninsula, North Africa, and Italy in November and December 2009. The DOAS instrument was installed on an
Externí odkaz:
https://doaj.org/article/331ad3fca4cf4cafa2bcd5f65d4b3389
Autor:
G. Lichtenberg, A. von Bargen, R. Spurr, C. Fayt, J. van Gent, J. van Geffen, C. Lerot, M. Van Roozendael
Publikováno v:
Atmospheric Measurement Techniques, Vol 2, Iss 1, Pp 87-98 (2009)
Total O3 columns have been retrieved from six years of SCIAMACHY nadir UV radiance measurements using SDOAS, an adaptation of the GDOAS algorithm previously developed at BIRA-IASB for the GOME instrument. GDOAS and SDOAS have been implemented by the
Externí odkaz:
https://doaj.org/article/fd4ed8d8de3d465d8a02b68afb351d15
Autor:
J.-F. Müller, J. van Gent, Steven Compernolle, Pieternel F. Levelt, Maite Bauwens, T. Stavrakou, Jonas Vlietinck, Huan Yu, Claus Zehner, Henk Eskes, J. P. Veefkind
Publikováno v:
Geophysical Research Letters
Geophysical Research Letters, 47(11)
Geophysical Research Letters, 47(11)
Spaceborne NO2 column observations from two high‐resolution instruments, TROPOMI onboard Sentinel‐5 Precursor and OMI on Aura, reveal unprecedented NO2 decreases over China, South Korea, Western Europe and the U.S. as a result of public health me