Zobrazeno 1 - 10
of 653
pro vyhledávání: '"E. Fawcett"'
Autor:
R. Granger, S. M. Smart, A. Foreman, A. Auderset, E. C. Campbell, T. A. Marshall, G. H. Haug, D. M. Sigman, A. Martínez‐García, S. E. Fawcett
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 9, Pp n/a-n/a (2024)
Abstract Seawater transported into the South Atlantic from the Indian Ocean via “Agulhas leakage” modulates global ocean circulation and has been linked to glacial‐interglacial climate cycles. However, constraining past Agulhas leakage has been
Externí odkaz:
https://doaj.org/article/58b1b2d10ca642c2956e876cc8e67f96
Publikováno v:
AGU Advances, Vol 4, Iss 6, Pp n/a-n/a (2023)
Abstract The Agulhas Current, like other western boundary currents (WBCs), transports nutrients laterally from the tropics to the subtropics in a subsurface “nutrient stream.” These nutrients are predominantly supplied to surface waters by season
Externí odkaz:
https://doaj.org/article/b017e7673c914eed88460cb5e6907b5d
Autor:
Zhou Liang, Kelly McCabe, Sarah E. Fawcett, Heather J. Forrer, Fuminori Hashihama, Catherine Jeandel, Dario Marconi, Hélène Planquette, Mak A. Saito, Jill A. Sohm, Rachel K. Thomas, Robert T. Letscher, Angela N. Knapp
Publikováno v:
Scientific Data, Vol 9, Iss 1, Pp 1-9 (2022)
Abstract Dissolved organic phosphorus (DOP) concentration distributions in the global surface ocean inform our understanding of marine biogeochemical processes such as nitrogen fixation and primary production. The spatial distribution of DOP concentr
Externí odkaz:
https://doaj.org/article/96124124cb934745876c4ef11e0b8c9e
Publikováno v:
Biogeosciences, Vol 19, Pp 3425-3444 (2022)
Across the Southern Ocean in winter, nitrification is the dominant mixed-layer nitrogen cycle process, with some of the nitrate produced therefrom persisting to fuel productivity during the subsequent growing season. Because this nitrate constitutes
Externí odkaz:
https://doaj.org/article/5cba833591344ed29bfcf1914e9f1a14
Autor:
Tanya Marshall, Julie Granger, Karen L. Casciotti, Kirstin Dähnke, Kay-Christian Emeis, Dario Marconi, Matthew R. McIlvin, Abigail E. Noble, Mak A. Saito, Daniel M. Sigman, Sarah E. Fawcett
Publikováno v:
Communications Earth & Environment, Vol 3, Iss 1, Pp 1-10 (2022)
Between 28 and 100% of nitrogen fixation in the South Atlantic occurs within the Angola Gyre and is potentially fuelled by supply of bioavailable iron from margin sediments and excess phosphorus, according to an analysis of observational hydrographic
Externí odkaz:
https://doaj.org/article/9c468c29f8b6400bb33f7cd97bccd4d8
Autor:
S. Smith, K. E. Altieri, M. Mdutyana, D. R. Walker, R. G. Parrott, S. Gallie, K. A. M. Spence, J. M. Burger, S. E. Fawcett
Publikováno v:
Biogeosciences, Vol 19, Pp 715-741 (2022)
The production and removal of ammonium (NH4+) are essential upper-ocean nitrogen cycle pathways, yet in the Southern Ocean where NH4+ has been observed to accumulate in surface waters, its mixed-layer cycling remains poorly understood. For surface se
Externí odkaz:
https://doaj.org/article/fdc2bd67175745dcb6b0ab433c913b96
Publikováno v:
Biogeosciences, Vol 18, Pp 6031-6059 (2021)
The Weddell Sea represents a point of origin in the Southern Ocean where globally important water masses form. Biological activities in Weddell Sea surface waters thus affect large-scale ocean biogeochemistry. During January–February 2019, we measu
Externí odkaz:
https://doaj.org/article/2b2436c900474c63ac7d41810a8cc7c9
Autor:
S. Landwehr, M. Volpi, F. A. Haumann, C. M. Robinson, I. Thurnherr, V. Ferracci, A. Baccarini, J. Thomas, I. Gorodetskaya, C. Tatzelt, S. Henning, R. L. Modini, H. J. Forrer, Y. Lin, N. Cassar, R. Simó, C. Hassler, A. Moallemi, S. E. Fawcett, N. Harris, R. Airs, M. H. Derkani, A. Alberello, A. Toffoli, G. Chen, P. Rodríguez-Ros, M. Zamanillo, P. Cortés-Greus, L. Xue, C. G. Bolas, K. C. Leonard, F. Perez-Cruz, D. Walton, J. Schmale
Publikováno v:
Earth System Dynamics, Vol 12, Pp 1295-1369 (2021)
The Southern Ocean is a critical component of Earth's climate system, but its remoteness makes it challenging to develop a holistic understanding of its processes from the small scale to the large scale. As a result, our knowledge of this vast region
Externí odkaz:
https://doaj.org/article/65fb6bc7bc4c41d9981b1452bffca73e
Publikováno v:
EDIS, Vol 2022, Iss 2 (2022)
Hurricanes and tropical storms can significantly alter forested and non-forested areas, creating unique hazards and considerations for wildland firefighters and prescribed burners. Prior to responding to wildfires and planning prescribed fires, fire
Externí odkaz:
https://doaj.org/article/c7cb563701a14af3b0b30da4f547add9
Autor:
Bétina A. V. Frinault, Frazer D. W. Christie, Sarah E. Fawcett, Raquel F. Flynn, Katherine A. Hutchinson, Chloë M. J. Montes Strevens, Michelle L. Taylor, Lucy C. Woodall, David K. A. Barnes
Publikováno v:
Biology, Vol 11, Iss 12, p 1705 (2022)
Ice shelves cover ~1.6 million km2 of the Antarctic continental shelf and are sensitive indicators of climate change. With ice-shelf retreat, aphotic marine environments transform into new open-water spaces of photo-induced primary production and ass
Externí odkaz:
https://doaj.org/article/384533f5121b4d65aff82ee40ad5109a