Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Zanna Chase"'
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Iron fertilisation of the high latitude oceans is a well-established biological mechanism to explain the ice age drawdown of atmospheric CO2, yet modelling has so far struggled to account for a sufficient drawdown via this mechanism. Here, the author
Externí odkaz:
https://doaj.org/article/c34719e361d34492a0e57907c25fde98
Autor:
Sian Tooze, Jacqueline A. Halpin, Taryn L. Noble, Zanna Chase, Philip E. O'Brien, Leanne Armand
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 11, Pp n/a-n/a (2020)
Abstract The geology of Wilkes Land, East Antarctica, is masked by kilometers of ice and remains largely unexplored. Defining the sediment provenance adjacent to this hidden region is important for distinguishing the proximal subglacial basement terr
Externí odkaz:
https://doaj.org/article/19454053bb144ff883b8211ee163effc
Autor:
Justine Barrett, Zanna Chase, Jing Zhang, Mark M. Banaszak Holl, Kathryn Willis, Alan Williams, Britta D. Hardesty, Chris Wilcox
Publikováno v:
Frontiers in Marine Science, Vol 7 (2020)
Interest in understanding the extent of plastic and specifically microplastic pollution has increased on a global scale. However, we still know relatively little about how much plastic pollution has found its way into the deeper areas of the world’
Externí odkaz:
https://doaj.org/article/b4a8c9e4362b4f9388f0cd703594a3fd
Publikováno v:
Frontiers in Marine Science, Vol 7 (2020)
Thorium (Th) isotopes were applied to quantify the supply of lithogenic inputs from the Kerguelen Plateau to the Southern Ocean. The dissolved concentrations of 232Th and 230Th were measured following a novel pre-concentration method using the Nobias
Externí odkaz:
https://doaj.org/article/5e5a260d24804f9b9066d1e1c14d10f2
Autor:
Pier van der Merwe, Kathrin Wuttig, Thomas Holmes, Thomas W. Trull, Zanna Chase, Ashley T. Townsend, Karsten Goemann, Andrew R. Bowie
Publikováno v:
Frontiers in Marine Science, Vol 6 (2019)
Iron (Fe) is an essential micronutrient that controls phytoplankton growth in the Southern Ocean. Dissolved Fe (0.4 μm) is far more abundant and may also become bioavailable through biogeochemical processing. To assess natural Fe fertilisation from
Externí odkaz:
https://doaj.org/article/9935f850fbed4534b71039dece4b215d
Autor:
Kenneth S. Johnson, William M. Berelson, Emmanuel S. Boss, Zanna Chase, Hervé Claustre, Steven R. Emerson, Nicolas Gruber, Arne Körtzinger, Mary Jane Perry, Stephen C. Riser
Publikováno v:
Oceanography, Vol 22, Iss 3, Pp 216-225 (2009)
Chemical and biological sensor technologies have advanced rapidly in the past five years. Sensors that require low power and operate for multiple years are now available for oxygen, nitrate, and a variety of bio-optical properties that serve as proxi
Externí odkaz:
https://doaj.org/article/a62507213d4e4d1586d425255174cb38
Publikováno v:
Biogeosciences. 19:5375-5399
Ocean alkalinity enhancement (OAE) is a proposed method to counteract climate change by increasing the alkalinity of the surface ocean and thus the chemical storage capacity of seawater for atmospheric CO2. The impact of OAE on marine ecosystems, inc
Autor:
Layla Creac'h, Taryn L. Noble, Zanna Chase, Bruce L.A. Charlier, Ashley T. Townsend, Habacuc Perez-Tribouillier, Christian Dietz
Publikováno v:
Geochimica et Cosmochimica Acta, 344
Determining past changes in ocean circulation on the Antarctic margin is important for understanding the interactions between climate, circulation, and ice sheet retreat. However, the application of neodymium isotopes (εNd), a well-known proxy of oc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fec4a2bda1af30a4233ff5516929bd89
https://hdl.handle.net/20.500.11850/599931
https://hdl.handle.net/20.500.11850/599931
Autor:
Harrison Stevens, Estrella Sanz Rodriguez, Brett Paull, Andrew R. Bowie, Zanna Chase, Leon A. Barmuta, Bernadette C. Proemse
Publikováno v:
Analytical Methods.
This work describes a fast, simple, and environmentally friendly method based on ultrasound probe extraction (UPS) and IC-MS analysis for the quantitation of levoglucosan and its isomers in sediments.
Publikováno v:
eISSN
Diatoms can provide important paleoenvironmental information about seasonal sea ice extent, productivity, sea surface temperature and ocean circulation variability, yet there are relatively few studies analysing the last glacial cycle near the Antarc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18a35b9f9cb98424bbf5be00dd00ee0a
https://doi.org/10.5194/egusphere-2022-1009
https://doi.org/10.5194/egusphere-2022-1009