Zobrazeno 1 - 10
of 125
pro vyhledávání: '"C Galy-Lacaux"'
Autor:
P Maritz, J.P Beukes, P.G van Zyl, E.H Conradie, C Liousse, C Galy-Lacaux, P Castéra, A Ramandh, G Mkhatshwa, A.D Venter, J.J Pienaar
Publikováno v:
Clean Air Journal, Vol 25, Iss 1 (2015)
Limited data currently exist for atmospheric organic carbon (OC) and black carbon (BC) in South Africa (SA). In this paper OC and BC measured in SA were explored in terms of spatial and temporal patterns, mass fractions of the total aerosol mass, as
Externí odkaz:
https://doaj.org/article/15ef846782824a8880b9c723847eba1a
Autor:
C Galy-Lacaux, C Delon
Publikováno v:
Environmental Research Letters, Vol 9, Iss 12, p 125002 (2014)
Atmospheric nitrogen depends on land surface exchanges of nitrogen compounds. In Sub Saharan Africa, deposition and emission fluxes of nitrogen compounds are poorly quantified, and are likely to increase in the near future due to land use change and
Externí odkaz:
https://doaj.org/article/0c68aed3c53b4a6a9fdddade46e58229
Autor:
F. Brown, G. A. Folberth, S. Sitch, S. Bauer, M. Bauters, P. Boeckx, A. W. Cheesman, M. Deushi, I. Dos Santos Vieira, C. Galy-Lacaux, J. Haywood, J. Keeble, L. M. Mercado, F. M. O'Connor, N. Oshima, K. Tsigaridis, H. Verbeeck
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 12331-12352 (2022)
Climate change has the potential to increase surface ozone (O3) concentrations, known as the “ozone–climate penalty”, through changes to atmospheric chemistry, transport and dry deposition. In the tropics, the response of surface O3 to changing
Externí odkaz:
https://doaj.org/article/5b46d716e0174dd2ac322fbd596c328b
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 1883-1904 (2022)
Ammonia (NH3) plays a central role in the chemistry of inorganic secondary aerosols in the atmosphere. The largest emission sector for NH3 is agriculture, where NH3 is volatilized from livestock wastes and fertilized soils. Although the NH3 volatiliz
Externí odkaz:
https://doaj.org/article/2bc4266a0dc049f78abea886ee778842
Autor:
J. E. Hickman, N. Andela, E. Dammers, L. Clarisse, P.-F. Coheur, M. Van Damme, C. A. Di Vittorio, M. Ossohou, C. Galy-Lacaux, K. Tsigaridis, S. E. Bauer
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 16277-16291 (2021)
Atmospheric ammonia (NH3) is a precursor to fine particulate matter and a source of nitrogen (N) deposition that can adversely affect ecosystem health. The main sources of NH3 – agriculture and biomass burning – are undergoing are or expected to
Externí odkaz:
https://doaj.org/article/ced0df0358b64428b48f897b744741f9
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 10637-10665 (2020)
South Africa is considered an important source region of atmospheric pollutants, which is compounded by high population and industrial growth. However, this region is understudied, especially with regard to evaluating long-term trends of atmospheric
Externí odkaz:
https://doaj.org/article/1b6acf376d534391a67cde98cee2d3e7
Autor:
C. Delon, C. Galy-Lacaux, D. Serça, E. Personne, E. Mougin, M. Adon, V. Le Dantec, B. Loubet, R. Fensholt, T. Tagesson
Publikováno v:
Biogeosciences, Vol 16, Pp 2049-2077 (2019)
Three different models (STEP–GENDEC–NOflux, Zhang2010, and Surfatm) are used to simulate NO, CO2, and NH3 fluxes at the daily scale for 2 years (2012–2013) in a semi-arid grazed ecosystem at Dahra (15∘24′10′′ N, 15∘25′56′′ W
Externí odkaz:
https://doaj.org/article/0f6cc0fc89d74ee9b2605f47ad7fc524
Autor:
C. Deshmukh, F. Guérin, A. Vongkhamsao, S. Pighini, P. Oudone, S. Sopraseuth, A. Godon, W. Rode, P. Guédant, P. Oliva, S. Audry, C. Zouiten, C. Galy-Lacaux, H. Robain, O. Ribolzi, A. Kansal, V. Chanudet, S. Descloux, D. Serça
Publikováno v:
Biogeosciences, Vol 15, Pp 1775-1794 (2018)
Freshwater reservoirs are a significant source of CO2 to the atmosphere. CO2 is known to be emitted at the reservoir surface by diffusion at the air–water interface and downstream of dams or powerhouses by degassing and along the river course. I
Externí odkaz:
https://doaj.org/article/1062f9f03d1b446a9290e34631f41d40
Autor:
C. Delon, E. Mougin, D. Serça, M. Grippa, P. Hiernaux, M. Diawara, C. Galy-Lacaux, L. Kergoat
Publikováno v:
Biogeosciences, Vol 12, Pp 3253-3272 (2015)
This work is an attempt to provide seasonal variation of biogenic NO emission fluxes in a Sahelian rangeland in Mali (Agoufou, 15.34° N, 1.48° W) for years 2004, 2005, 2006, 2007 and 2008. Indeed, NO is one of the most important precursors for
Externí odkaz:
https://doaj.org/article/2f8183e069b2413fbaec51e700744c5a
Autor:
A. J. Adon, C. Liousse, E. T. Doumbia, A. Baeza-Squiban, H. Cachier, J.-F. Léon, V. Yoboué, A. B. Akpo, C. Galy-Lacaux, B. Guinot, C. Zouiten, H. Xu, E. Gardrat, S. Keita
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 5327-5354 (2020)
Urban air pollution in West Africa has yet to be well characterized. In the frame of DACCIWA (Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa) program, intensive measurement campaigns were performed in Abidjan (Côte d'Ivoire) and Cotono
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doajarticles::df13f1762af0df68fd0fd64fb6c3c1eb
https://www.atmos-chem-phys.net/20/5327/2020/acp-20-5327-2020.pdf
https://www.atmos-chem-phys.net/20/5327/2020/acp-20-5327-2020.pdf