Rafel Simó

DMS, MeSH and nanoparticles in semi-controlled deck-borne experiments using Antarctic seawater: on the effect of UV light

Guillaume Chamba, Karine Sellegri, Valérie Gros, Clémence Rose et autres

Abstract. Sulfur-containing volatile organic compounds (VOCs) such as dimethyl sulfide (DMS) and methanethiol (MeSH) are are of particular interest among oceanic VOCs emitted by the ocean, both for their central role in the marine sulfur cycle and as potential precursors to secondary …

fr, us, es, gb (code pays fourni par la source)

Supplementary material to "DMS, MeSH and nanoparticles in semi-controlled deck-borne experiments using Antarctic seawater: on the effect of UV light"

Guillaume Chamba, Karine Sellegri, Valérie Gros, Clémence Rose et autres

fr, us, gb, es (code pays fourni par la source)

Methanethiol and dimethyl sulfide measurements in seawater and the atmosphere around the Antarctic Peninsula and in the Weddell Sea

Charel Wohl, Leah R. Williams, Elisabeth Deschaseaux, Lauriane L. J. Quéléver et autres

Abstract. Inclusion of methanethiol (MeSH) in global chemistry–climate models has shown that MeSH emissions increase SO2, particulate sulfate and aerosol cooling over the Southern Ocean. However, measurements in the Southern Ocean are sparse. In February and March 2023, we deployed three online …

gb, es, us, fi, ch, fr (code pays fourni par la source)

Supplementary material to "Methanethiol and dimethyl sulfide measurements in seawater and the atmosphere around the Antarctic Peninsula and in the Weddell Sea"

Charel Wohl, Leah R. Williams, Elisabeth Deschaseaux, Lauriane L. J. Quéléver et autres

S1 Seawater Vocus PTR operationTo monitor instrument performance and drift, the seawater-sampling Vocus PTR was calibrated at least daily using a 10 multi-compound gas standard (nominal concentration 500 nmol mol -1 ; methanol, acetaldehyde, acetone, isoprene, DMS, benzene, toluene, m-xylene, α-pinene in …

Ice Nuclei properties in seawater, sea ice and brine from the Southern Ocean, Weddell Sea and Antarctic Peninsula: on the potential anti-freezing properties of polar microbiota

Evelyn Freney, Karine Sellegri, Odile Crabeck, Arianna Rocchi et autres

Early studies from the 90’s on INPs in the Southern Ocean (SO) have already revealed lower INP concentrations in the SO region than in other marine regions. This feature was confirmed in recent measurements and modeling exercises, with implications on our ability …

fr, be, es (code pays fourni par la source)

DMS, MeSH and nanoparticles in semi-controlled deck-borne experiments using Antarctical seawaters: on the effect of UV light

Karine Sellegri, Guillaume Chamba, Valérie Gros, Clémence Rose et autres

Among the wide variety of VOCs emitted by the oceans, sulfur-containing compounds such as dimethyl sulfide (DMS) and methanethiol (MeSH) can be particularly important due to their prominent role in the marine sulfur cycle and their fate as secondary aerosol precursors. However …

fr, es, gb (code pays fourni par la source)

The biogenic sulfur cycle in the coupled ocean–sea ice–atmosphere system

Sakiko Ishino, Megan D. Willis, Hélène Angot, Thorsten Bartels‐Rausch et autres

Polar oceans and sea-ice regions are global hot spots for the production of biogenic volatile methylated sulfur (VMS) compounds: dimethyl sulfide (DMS) and methanethiol (MeSH). VMS compounds make important contributions to atmospheric particle formation and cloud property modulation, especially when polar atmospheres …

jp, us, fr, ch, be, au, ca, in, kr, de, es, nl (code pays fourni par la source)

Distribution of alkylamines in surface waters around the Antarctic Peninsula and Weddell Sea

Arianna Rocchi, Mark F. Fitzsimons, Preston Akenga, Ana Sotomayor et autres

Alkylamines, volatile organic nitrogen compounds with low molecular weight, are present in the surface ocean and participate in the marine biogeochemical nitrogen cycle, atmospheric chemistry and cloud formation. Alkylamines have been detected in polar regions, suggesting that these areas constitute emission hotspots …

es, gb (code pays fourni par la source)

Supplementary material to "Distribution of alkylamines in surface waters around the Antarctic Peninsula and Weddell Sea"

Arianna Rocchi, Mark F. Fitzsimons, Preston Akenga, Ana Sotomayor et autres

8 26.9 76.0 0.

Distribution of alkylamines in surface waters around the Antarctic Peninsula and Weddell Sea

Arianna Rocchi, Mark F. Fitzsimons, Preston Akenga, Ana Sotomayor et autres

Abstract. Small molecular weight alkylamines, organic nitrogen compounds present in the surface ocean, participate in the marine biogeochemical nitrogen cycle, atmospheric processes and cloud formation. Alkylamines have been detected in polar regions, suggesting that these areas constitute emission hotspots of these compounds. …

es, gb (code pays fourni par la source)

Distinctive chemotactic responses of three marine herbivore protists to DMSP and related compounds

Queralt Güell‐Bujons, Medea Zanoli, Idán Tuval, Albert Calbet et autres

Marine planktonic predator-prey interactions occur in microscale seascapes, where diffusing chemicals may act either as chemotactic cues that enhance or arrest predation, or as elemental resources that are complementary to prey ingestion. The phytoplankton osmolyte dimethylsulfoniopropionate (DMSP) and its degradation products dimethylsulfide …

es (code pays fourni par la source)

L'oceà i el canvi global

Josep Maria Gili Sardà, Josep M. Gasol, Rafel Simó