Zobrazeno 1 - 10
of 647
pro vyhledávání: '"Keckhut, P."'
Autor:
N. Bègue, A. Baron, G. Krysztofiak, G. Berthet, C. Kloss, F. Jégou, S. Khaykin, M. Ranaivombola, T. Millet, T. Portafaix, V. Duflot, P. Keckhut, H. Vérèmes, G. Payen, M. K. Sha, P.-F. Coheur, C. Clerbaux, M. Sicard, T. Sakai, R. Querel, B. Liley, D. Smale, I. Morino, O. Uchino, T. Nagai, P. Smale, J. Robinson, H. Bencherif
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 8031-8048 (2024)
During the 2020 austral summer, the pristine atmosphere of the southwest Indian Ocean (SWIO) basin experienced significant perturbations. This study examines the variability of aerosols and carbon monoxide (CO) over this remote oceanic region and inv
Externí odkaz:
https://doaj.org/article/64584ddd11144bcb930a5407005de939
Autor:
Cannelle Clavier, Mustapha Meftah, Alain Sarkissian, Frédéric Romand, Odile Hembise Fanton d’Andon, Antoine Mangin, Slimane Bekki, Pierre-Richard Dahoo, Patrick Galopeau, Franck Lefèvre, Alain Hauchecorne, Philippe Keckhut
Publikováno v:
Remote Sensing, Vol 16, Iss 8, p 1442 (2024)
Monitoring atmospheric concentrations of greenhouse gases (GHGs) like carbon dioxide and methane in near real time and with good spatial resolution is crucial for enhancing our understanding of the sources and sinks of these gases. A novel approach c
Externí odkaz:
https://doaj.org/article/cae08936074b4355b8bb4f78f558747a
Akademický článek
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Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 997-1016 (2023)
The European Space Agency's (ESA) Aeolus satellite mission is the first Doppler wind lidar in space, operating in orbit for more than 4 years since August 2018 and providing global wind profiling throughout the entire troposphere and the lower strato
Externí odkaz:
https://doaj.org/article/403e35a43cb04575b801a50c10cc9e8b
Autor:
F. Tencé, J. Jumelet, M. Bouillon, D. Cugnet, S. Bekki, S. Safieddine, P. Keckhut, A. Sarkissian
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 431-451 (2023)
Polar stratospheric clouds (PSCs) play a critical role in the stratospheric ozone depletion processes. The last 30 years have seen significant improvements in our understanding of the PSC processes but PSC parametrization in global models still remai
Externí odkaz:
https://doaj.org/article/77291c83d74142829eb0ef330016e6bb
Autor:
F. Chouza, T. Leblanc, M. Brewer, P. Wang, G. Martucci, A. Haefele, H. Vérèmes, V. Duflot, G. Payen, P. Keckhut
Publikováno v:
Atmospheric Measurement Techniques, Vol 15, Pp 4241-4256 (2022)
The impact of aerosol fluorescence on the measurement of water vapor by UV (355 nm emission) Raman lidar in the upper troposphere and lower stratosphere (UTLS) is investigated using the long-term records of three high-performance Raman lidars contrib
Externí odkaz:
https://doaj.org/article/6f6a9a2715784c40bdd2092f358ac1ab
Akademický článek
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Publikováno v:
Geophysical Research Letters, Vol 50, Iss 9, Pp n/a-n/a (2023)
Abstract The mesospheric inversion layer (MIL) phenomenon is a temperature enhancement (10–50 K) in a vertical layer (∼10 km) lasting several days and spanning thousands of kilometers within the mesosphere. As MILs govern the mesospheric variabil
Externí odkaz:
https://doaj.org/article/d700f098facd41419f36969c1b500560
Autor:
Mustapha Meftah, Cannelle Clavier, Alain Sarkissian, Alain Hauchecorne, Slimane Bekki, Franck Lefèvre, Patrick Galopeau, Pierre-Richard Dahoo, Andrea Pazmino, André-Jean Vieau, Christophe Dufour, Pierre Maso, Nicolas Caignard, Frédéric Ferreira, Pierre Gilbert, Odile Hembise Fanton d’Andon, Sandrine Mathieu, Antoine Mangin, Catherine Billard, Philippe Keckhut
Publikováno v:
Remote Sensing, Vol 15, Iss 19, p 4876 (2023)
Climate change is undeniably one of the most pressing and critical challenges facing humanity in the 21st century. In this context, monitoring the Earth’s Energy Imbalance (EEI) is fundamental in conjunction with greenhouse gases (GHGs) in order to
Externí odkaz:
https://doaj.org/article/030f3a6f3f894365bde31b1d3017ffc0
Publikováno v:
Communications Earth & Environment, Vol 3, Iss 1, Pp 1-5 (2022)
The transition of the northern stratospheric circulation from winter to summer comes in two flavours, a smooth late one governed by radiation or an abrupt, early transition forced by dynamics, suggests a composite analysis of reanalyses from 1950 to
Externí odkaz:
https://doaj.org/article/96854f938e95467bbdb0a0f11c0c4dd3