Zobrazeno 1 - 10
of 145
pro vyhledávání: '"J. C. Dupont"'
Autor:
J. Céspedes, S. Kotthaus, J. Preissler, C. Toupoint, L. Thobois, M.-A. Drouin, J.-C. Dupont, A. Faucheux, M. Haeffelin
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 11477-11496 (2024)
The low-level jet (LLJ) and the urban heat island (UHI) are common nocturnal phenomena. While the UHI has been studied extensively, interactions of the LLJ and the urban atmosphere in general (and the UHI in particular) have received less attention.
Externí odkaz:
https://doaj.org/article/f02a3c1a3f124fed99ffd9cd1feeb511
Autor:
V. Michoud, A. Colomb, A. Borbon, K. Miet, M. Beekmann, M. Camredon, B. Aumont, S. Perrier, P. Zapf, G. Siour, W. Ait-Helal, C. Afif, A. Kukui, M. Furger, J. C. Dupont, M. Haeffelin, J. F. Doussin
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 6, Pp 2805-2822 (2014)
Nitrous acid measurements were carried out during the MEGAPOLI summer and winter field campaigns at SIRTA observatory in Paris surroundings. Highly variable HONO levels were observed during the campaigns, ranging from 10 ppt to 500 ppt in summer and
Externí odkaz:
https://doaj.org/article/78874c5aa19f45d2979fcbe3f3c630ea
Autor:
M. Ghysels, G. Durry, N. Amarouche, D. Hurst, E. Hall, K. Xiong, J.-C. Dupont, J.-C. Samake, F. Frérot, R. Bejjani, E. D. Riviere
Publikováno v:
Atmospheric Measurement Techniques, Vol 17, Pp 3495-3513 (2024)
The mid-infrared lightweight tunable diode laser hygrometer, “Pico-Light H2O”, the successor to Pico-SDLA H2O, is presented and its performances are evaluated during the AsA 2022 balloon-borne intercomparison campaign conducted at the CNES Aire-s
Externí odkaz:
https://doaj.org/article/dc02e0f48b3b416ab262a26daee545db
Autor:
C. Dione, M. Haeffelin, F. Burnet, C. Lac, G. Canut, J. Delanoë, J.-C. Dupont, S. Jorquera, P. Martinet, J.-F. Ribaud, F. Toledo
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 15711-15731 (2023)
In this study, we use a synergy of in situ and remote sensing measurements collected during the SOuthwest FOGs 3D experiment for processes study (SOFOG3D) field campaign in autumn and winter 2019–2020 to analyse the thermodynamic and turbulent proc
Externí odkaz:
https://doaj.org/article/f32cd0cf4f6f4a49a89199633b3afbba
Publikováno v:
Atmospheric Measurement Techniques, Vol 16, Pp 1211-1237 (2023)
Cloud radars are capable of providing continuous high-resolution observations of clouds and now offer new capabilities within fog layers thanks to the development of frequency-modulated continuous-wave 95 GHz cloud radars. These observations are rela
Externí odkaz:
https://doaj.org/article/bcd27083df0740bdbed3150960aec684
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 7893-7907 (2021)
An improved version of the near-real-time decision tool PARAFOG (PFG2) is presented to retrieve pre-fog alert levels and to discriminate between radiation (RAD) and stratus lowering (STL) fog situations. PFG2 has two distinct modules to monitor the p
Externí odkaz:
https://doaj.org/article/df16b2ebc4cf4cc4ae74524c71bdd93b
Autor:
J.-E. Petit, J.-C. Dupont, O. Favez, V. Gros, Y. Zhang, J. Sciare, L. Simon, F. Truong, N. Bonnaire, T. Amodeo, R. Vautard, M. Haeffelin
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 17167-17183 (2021)
Since early 2020, the COVID-19 pandemic has led to lockdowns at national scales. These lockdowns resulted in large cuts of atmospheric pollutant emissions, notably related to the vehicular traffic source, especially during spring 2020. As a result, a
Externí odkaz:
https://doaj.org/article/df0580ea2c2549b5ba9792393e3b07b6
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 13099-13117 (2021)
Visibility reduction caused by fog can be hazardous for human activities, especially for the transport sector. Previous studies show that this problem could be mitigated by improving nowcasting of fog dissipation. To address this issue, we propose a
Externí odkaz:
https://doaj.org/article/b92418a0483a4a2c8c079cb1296d15fa
Autor:
R. D. Kutzner, J. Cuesta, P. Chelin, J.-E. Petit, M. Ray, X. Landsheere, B. Tournadre, J.-C. Dupont, A. Rosso, F. Hase, J. Orphal, M. Beekmann
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 12091-12111 (2021)
Ammonia (NH3) is a key precursor for the formation of atmospheric secondary inorganic particles, such as ammonium nitrate and sulfate. Although the chemical processes associated with the gas-to-particle conversion are well known, atmospheric concentr
Externí odkaz:
https://doaj.org/article/a753c56d8f0a4764ac8700a82212023b
Publikováno v:
Atmospheric Measurement Techniques, Vol 14, Pp 4929-4946 (2021)
The development of ground-based cloud radars offers a new capability to continuously monitor fog structure. Retrievals of fog microphysics are key for future process studies, data assimilation, or model evaluation and can be performed using a variati
Externí odkaz:
https://doaj.org/article/c7b29616e49b41fabdd717132f834d3f