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Chambodut A., Bernard A. (2023).
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Charlotte Bruland, Celine Hadziioannou. (2023). Gliding tremors associated with the 26 second microseism in the Gulf of Guinea (Vol. 4).
Abstract: A location in the Gulf of Guinea, which emits monochromatic seismic waves at 26-second period, seemingly continuously, was identified in the 1960s. However, the origin of these seismic waves remains enigmatic to date. Here we use three-component data from two seismic arrays in Africa, as well as additional seismic data compiled from around the world, to investigate the tremors. We identify frequency glides accompanying the previously known 26 s microseism which start at the same frequency and originate in the same, fixed location in the Gulf of Guinea. The stable characteristics of the tremors, their low frequency range, the implied large spatial scale, and the decades-long timescales where this phenomenon seems to have been active, all point towards a gap in our understanding of long period oceanic and volcanic signals. Since tremor is an important tool to monitor volcanoes, understanding this phenomenon may affect future forecasting of volcanic activity.
Keywords: Geophysics Seismology Volcanology
Programme: 133
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. (2023). Selection processes of Arctic seasonal glacier snowpack bacterial communities (Vol. 11).
Abstract: Arctic snowpack microbial communities are continually subject to dynamic chemical and microbial input from the atmosphere. As such, the factors that contribute to structuring their microbial communities are complex and have yet to be completely resolved. These snowpack communities can be used to evaluate whether they fit niche-based or neutral assembly theories.
Keywords: Arctic Microbial ecology Neutral processes Niche-based selection Snow
Programme: 1192
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Christophe Barbraud, Dominique Joubert, Karine Delord. (2023). The demography of the White-headed Petrel at Mayes Island, Kerguelen.
Keywords: Adult survival Breeding Capture-mark-recapture Population growth rate Pterodroma lessonii Seabird
Programme: 109
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. (2023). From atmospheric water isotopes measurement to firn core interpretation in Adelie Land: A case study for isotope-enabled atmospheric models in Antarctica.
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. (2023). (Vol. 17). Bachelor's thesis, , .
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Christophe Sauser, Karine Delord, Christophe Barbraud. (2023). Demography of cape petrels in response to environmental changes (Vol. 65).
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. (2023). Probing the limits of sampling gaseous elemental mercury passively in the remote atmosphere (Vol. 3).
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. (2023). A peat core Hg stable isotope reconstruction of Holocene atmospheric Hg deposition at Amsterdam Island (37.8oS) (Vol. 341).
Keywords: Hg deposition Hg stable isotopes Peat Rain Southern Hemisphere
Programme: 1028
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Clive R. McMahon, Mark A. Hindell, Jean Benoit Charrassin, Richard Coleman, Christophe Guinet, Robert Harcourt, Sara Labrousse, Benjemin Raymond, Michael Sumner, Natalia Ribeiro. (2023). Southern Ocean pinnipeds provide bathymetric insights on the East Antarctic continental shelf (Vol. 4).
Keywords: Environmental sciences Ocean sciences
Programme: 1201
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