Zobrazeno 1 - 10
of 92
pro vyhledávání: '"H. Planquette"'
Autor:
N. R. van Horsten, H. Planquette, G. Sarthou, T. J. Ryan-Keogh, N. Lemaitre, T. N. Mtshali, A. Roychoudhury, E. Bucciarelli
Publikováno v:
Biogeosciences, Vol 19, Pp 3209-3224 (2022)
The Southern Ocean (SO) is of global importance to the carbon cycle, and processes such as mesopelagic remineralisation that impact the efficiency of the biological carbon pump in this region need to be better constrained. During this study early aus
Externí odkaz:
https://doaj.org/article/65f6fb131ed8466c8a4d8812377f060c
Publikováno v:
Biogeosciences, Vol 17, Pp 5539-5561 (2020)
Particulate concentrations of the 14 Rare Earth Elements (PREE), yttrium, and 232-thorium were measured in 200 samples collected in the epipelagic (ca. 0–200 m) and mesopelagic (ca. 200–1500 m) zones of the North Atlantic during the GEOVIDE c
Externí odkaz:
https://doaj.org/article/c63b1335d6d94cc1b6468a0d6ec030c6
Autor:
M. Tonnard, H. Planquette, A. R. Bowie, P. van der Merwe, M. Gallinari, F. Desprez de Gésincourt, Y. Germain, A. Gourain, M. Benetti, G. Reverdin, P. Tréguer, J. Boutorh, M. Cheize, F. Lacan, J.-L. Menzel Barraqueta, L. Pereira-Contreira, R. Shelley, P. Lherminier, G. Sarthou
Publikováno v:
Biogeosciences, Vol 17, Pp 917-943 (2020)
Dissolved Fe (DFe) samples from the GEOVIDE voyage (GEOTRACES GA01, May–June 2014) in the North Atlantic Ocean were analyzed using a seaFAST-pico™ coupled to an Element XR sector field inductively coupled plasma mass spectrometer (SF-ICP-MS) and
Externí odkaz:
https://doaj.org/article/fe10d8ad4a334be084a540a819fb8303
Autor:
A. Gourain, H. Planquette, M. Cheize, N. Lemaitre, J.-L. Menzel Barraqueta, R. Shelley, P. Lherminier, G. Sarthou
Publikováno v:
Biogeosciences, Vol 16, Pp 1563-1582 (2019)
The aim of the GEOVIDE cruise (May–June 2014, R/V Pourquoi Pas?) was to provide a better understanding of trace metal biogeochemical cycles in the North Atlantic Ocean. As marine particles play a key role in the global biogeochemical cycle of trace
Externí odkaz:
https://doaj.org/article/2186b3bbc83c4dc0a90aafd27db1661d
Autor:
D. Fonseca-Batista, X. Li, V. Riou, V. Michotey, F. Deman, F. Fripiat, S. Guasco, N. Brion, N. Lemaitre, M. Tonnard, M. Gallinari, H. Planquette, F. Planchon, G. Sarthou, M. Elskens, J. LaRoche, L. Chou, F. Dehairs
Publikováno v:
Biogeosciences, Vol 16, Pp 999-1017 (2019)
Diazotrophic activity and primary production (PP) were investigated along two transects (Belgica BG2014/14 and GEOVIDE cruises) off the western Iberian Margin and the Bay of Biscay in May 2014. Substantial N2 fixation activity was observed at 8 of th
Externí odkaz:
https://doaj.org/article/bfa17371447942e380462d9b57c03f17
Autor:
N. Lemaitre, F. Planchon, H. Planquette, F. Dehairs, D. Fonseca-Batista, A. Roukaerts, F. Deman, Y. Tang, C. Mariez, G. Sarthou
Publikováno v:
Biogeosciences, Vol 15, Pp 6417-6437 (2018)
In this study we report particulate organic carbon (POC) export fluxes for different biogeochemical basins in the North Atlantic as part of the GEOTRACES GA01 expedition (GEOVIDE, May–June 2014). Surface POC export fluxes were deduced by combini
Externí odkaz:
https://doaj.org/article/364701637e6647a1bc13423632f6e46c
Autor:
J.-L. Menzel Barraqueta, C. Schlosser, H. Planquette, A. Gourain, M. Cheize, J. Boutorh, R. Shelley, L. Contreira Pereira, M. Gledhill, M. J. Hopwood, F. Lacan, P. Lherminier, G. Sarthou, E. P. Achterberg
Publikováno v:
Biogeosciences, Vol 15, Pp 5271-5286 (2018)
The distribution of dissolved aluminium (dAl) in the water column of the North Atlantic and Labrador Sea was studied along GEOTRACES section GA01 to unravel the sources and sinks of this element. Surface water dAl concentrations were low (median o
Externí odkaz:
https://doaj.org/article/7f765957965c4519b0f07d2d5a7c6937
Autor:
C. M. Zurbrick, E. A. Boyle, R. J. Kayser, M. K. Reuer, J. Wu, H. Planquette, R. Shelley, J. Boutorh, M. Cheize, L. Contreira, J.-L. Menzel Barraqueta, F. Lacan, G. Sarthou
Publikováno v:
Biogeosciences, Vol 15, Pp 4995-5014 (2018)
During the 2014 GEOVIDE transect, seawater samples were collected for dissolved Pb and Pb isotope analysis. These samples provide a high-resolution snapshot of the source regions for the present Pb distribution in the North Atlantic Ocean. Some of
Externí odkaz:
https://doaj.org/article/7047e885fa9849db889dfd7c900f84c3
Autor:
D. Cossa, L.-E. Heimbürger, F. F. Pérez, M. I. García-Ibáñez, J. E. Sonke, H. Planquette, P. Lherminier, J. Boutorh, M. Cheize, J. L. Menzel Barraqueta, R. Shelley, G. Sarthou
Publikováno v:
Biogeosciences, Vol 15, Pp 2309-2323 (2018)
We report here the results of total mercury (HgT) determinations along the 2014 Geotraces Geovide cruise (GA01 transect) in the North Atlantic Ocean (NA) from Lisbon (Portugal) to the coast of Labrador (Canada). HgT concentrations in unfiltered sa
Externí odkaz:
https://doaj.org/article/2e25d6ef1e5540d4b885ec24e51c29cd
Autor:
N. Lemaitre, H. Planquette, F. Planchon, G. Sarthou, S. Jacquet, M. I. García-Ibáñez, A. Gourain, M. Cheize, L. Monin, L. André, P. Laha, H. Terryn, F. Dehairs
Publikováno v:
Biogeosciences, Vol 15, Pp 2289-2307 (2018)
The remineralisation of sinking particles by prokaryotic heterotrophic activity is important for controlling oceanic carbon sequestration. Here, we report mesopelagic particulate organic carbon (POC) remineralisation fluxes in the North Atlantic a
Externí odkaz:
https://doaj.org/article/cd86649419a648449a93460b79ab8377