Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Alexander B Michaud"'
Autor:
Alicia M Purcell, Jill A Mikucki, Amanda eAchberger, Irina eAlekhina, Carlo eBarbante, Brent Craig Christner, Dhritiman eGhosh, Alexander B Michaud, Andrew C Mitchell, John C Priscu, Reed eScherer, Mark eSkidmore, Trista J Vick-Majors, The WISSARD eScience Team
Publikováno v:
Frontiers in Microbiology, Vol 5 (2014)
Diverse microbial assemblages inhabit subglacial aquatic environments. While few of these environments have been sampled, data reveal that subglacial organisms gain energy for growth from reduced minerals containing nitrogen, iron, and sulfur. Here w
Externí odkaz:
https://doaj.org/article/92ed8ef98e1f434fb545eccc5d33df15
Publikováno v:
Earth's Future, Vol 12, Iss 4, Pp n/a-n/a (2024)
Abstract We present a cost model for implementing a deployment scale effort for conducting ocean iron fertilization (OIF) for marine‐based carbon dioxide removal (CDR). The model incorporates basic oceanographic parameters critical for estimating t
Externí odkaz:
https://doaj.org/article/4d767bdc988a42dfa228f0b6aba701b8
Autor:
Christina L. Davis, Ryan A. Venturelli, Alexander B. Michaud, Jon R. Hawkings, Amanda M. Achberger, Trista J. Vick-Majors, Brad E. Rosenheim, John E. Dore, August Steigmeyer, Mark L. Skidmore, Joel D. Barker, Liane G. Benning, Matthew R. Siegfried, John C. Priscu, Brent C. Christner, the SALSA Science Team
Publikováno v:
ISME Communications, Vol 3, Iss 1, Pp 1-11 (2023)
Abstract Ice streams that flow into Ross Ice Shelf are underlain by water-saturated sediments, a dynamic hydrological system, and subglacial lakes that intermittently discharge water downstream across grounding zones of West Antarctic Ice Sheet (WAIS
Externí odkaz:
https://doaj.org/article/fb43de337f6447d8a56cf6e27a47f8d9
Autor:
Ryan A. Venturelli, Brenna Boehman, Christina Davis, Jon R. Hawkings, Sarah E. Johnston, Chloe D. Gustafson, Alexander B. Michaud, Cyrille Mosbeux, Matthew R. Siegfried, Trista J. Vick‐Majors, Valier Galy, Robert G. M. Spencer, Sophie Warny, Brent C. Christner, Helen A. Fricker, David M. Harwood, Amy Leventer, John C. Priscu, Brad E. Rosenheim, SALSA Science Team
Publikováno v:
AGU Advances, Vol 4, Iss 2, Pp n/a-n/a (2023)
Abstract Projections of Antarctica's contribution to future sea level rise are associated with significant uncertainty, in part because the observational record is too short to capture long‐term processes necessary to estimate ice mass changes over
Externí odkaz:
https://doaj.org/article/dcd6f4badad043bca4fa13aed850b593
Autor:
Katja Laufer-Meiser, Alexander B. Michaud, Markus Maisch, James M. Byrne, Andreas Kappler, Molly O. Patterson, Hans Røy, Bo Barker Jørgensen
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-13 (2021)
The impacts of a melting Arctic on the biogeochemistry of marine ecosystems are unknown. Here, the authors investigate glacial input of iron to Svalbard fjords finding that reworking of glacial iron in fjord sediment is important to make iron bioavai
Externí odkaz:
https://doaj.org/article/ffa1d37a68d34f4da56a6468965e20c4
Autor:
YONGQIN LIU, JOHN C. PRISCU, TANDONG YAO, TRISTA J. VICK-MAJORS, ALEXANDER B. MICHAUD, LIANG SHENG
Publikováno v:
Journal of Glaciology, Vol 65, Pp 29-38 (2019)
Microorganisms are the most abundant organisms on Earth, and microbial abundance records preserved in ice cores have been connected to records of environmental change. As an alternative to high resolution abundance records, which can be difficult to
Externí odkaz:
https://doaj.org/article/d774f888161248258ad022f389385ead
Publikováno v:
Inland Waters. 12:418-426
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c163b196e42b01bf4319f9e317f8256
https://doi.org/10.1080/20442041.2022.2063623
https://doi.org/10.1080/20442041.2022.2063623
Publikováno v:
FEMS Microbiology Ecology. 99
Water logged habitats in continuous permafrost regions provide extensive oxic-anoxic interface habitats for iron cycling. The iron cycle interacts with the methane and phosphorus cycles, and is an important part of tundra biogeochemistry. Our objecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04d912817ce9cd3b2dee30784b87a79c
https://doi.org/10.1093/femsec/fiad013
https://doi.org/10.1093/femsec/fiad013
Autor:
Alexander B. Michaud, John C. Priscu
Publikováno v:
Michaud, A B & Priscu, J C 2023, ' Sediment oxygen consumption in Antarctic subglacial environments ', Limnology and Oceanography . https://doi.org/10.1002/lno.12366
Oxygen consumption in aquatic sediments is an indicator of overall biological activity of the ecosystem. As such, rates of sedimentary oxygen utilization are well documented for much of the open oceans and freshwater lakes. However, there are few dir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::785486249910bf51f71300d2229bece2
https://pure.au.dk/portal/da/publications/sediment-oxygen-consumption-in-antarctic-subglacial-environments(810df1af-1c94-4032-ba51-12fc29e74219).html
https://pure.au.dk/portal/da/publications/sediment-oxygen-consumption-in-antarctic-subglacial-environments(810df1af-1c94-4032-ba51-12fc29e74219).html
