Zobrazeno 1 - 10
of 133
pro vyhledávání: '"Hansell A"'
Autor:
Chelsea N. Lopez, Dennis A. Hansell
Publikováno v:
Frontiers in Marine Science. 10
Here we shed light on two mechanisms that stimulate deep particle export via upper-ocean iron fertilization in the Southern Ocean: deep frontal mixing and melting of sea ice. We present data collected a decade apart in the Pacific sector of the South
Autor:
Tatiana Williford, Rainer M. W. Amon, Karl Kaiser, Ronald Benner, Colin Stedmon, Dorothea Bauch, Jessica N. Fitzsimmons, Loes J. A. Gerringa, Robert Newton, Dennis A. Hansell, Mats A. Granskog, Laramie Jensen, Luis M. Laglera, Angelica Pasqualini, Benjamin Rabe, Heather Reader, Michiel Rutgers van der Loeff, Ge Yan
Publikováno v:
Williford, T, Amon, R M W, Kaiser, K, Benner, R, Stedmon, C, Bauch, D, Fitzsimmons, J N, Gerringa, L J A, Newton, R, Hansell, D A, Granskog, M A, Jensen, L, Laglera, L M, Pasqualini, A, Rabe, B, Reader, H, van der Rutgers Loeff, M & Yan, G 2022, ' Spatial complexity in dissolved organic matter and trace elements driven by hydrography and freshwater input across the Arctic Ocean during 2015 Arctic GEOTRACES expeditions ', Journal of Geophysical Research: Oceans . https://doi.org/10.1029/2022JC018917
This study traces dissolved organic matter (DOM) in different water masses of the Arctic Ocean and its effect on the distributions of trace elements (TEs; Fe, Cu, Mn, Ni, Zn, Cd) using fluorescent properties of DOM and the terrigenous biomarker ligni
The ocean contains a large reservoir of dissolved organic matter (DOM) that persists for millennia. Both the very dilute concentrations of individual DOM molecules and intrinsic recalcitrance to microbial decay imparted by molecular structure are sug
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c834f85f4089074c16948bfe724f6fe
Publikováno v:
Global Biogeochemical Cycles. 33:1174-1186
Publikováno v:
Frontiers in Marine Science, Vol 8 (2021)
Here we provide compelling evidence that deep particle export enhanced dissolved organic carbon (DOC) concentrations beneath the Pacific’s Subarctic Front (SA, ∼42°N) and Northern Subtropical Front (NST, ∼34°N). We report three main findings:
Publikováno v:
Oceanography, Vol 22, Iss 4, Pp 202-211 (2009)
Containing as much carbon as the atmosphere, marine dissolved organic matter is one of Earth’s major carbon reservoirs. With invigoration of scientific inquiries into the global carbon cycle, our ignorance of its role in ocean biogeochemistry becam
Externí odkaz:
https://doaj.org/article/662fe537cc274a9eae1d4143ae707c57
Autor:
Yannick Huot, Bethany D. Jenkins, Tatiana A. Rynearson, Andrea J. Fassbender, Colleen A. Durkin, Jason R. Graff, Jong-Mi Lee, Brandon M. Stephens, Deborah K. Steinberg, Phoebe J. Lam, Salvatore Caprara, Ken O. Buesseler, Zachary K. Erickson, Heather McNair, Deric Gray, Inia Soto Ramos, Roberta C. Hamme, Adrian B. Burd, Marie Robert, David A. Siegel, Weida Gong, Kanesa Duncan Seraphin, Kristen N. Buck, Uta Passow, Montserrat Roca-Martí, Melissa M. Omand, Susanne Menden-Deuer, Dennis A. Hansell, Andrew M. P. McDonnell, Xiaodong Zhang, Philip W. Boyd, Lee Karp-Boss, Scott M. Gifford, Adrian Marchetti, Hilary G. Close, Michael J. Behrenfeld, Craig A. Carlson, Margaret L. Estapa, Kelsey Bisson, Yuanheng Xiong, Eric A. D'Asaro, Kim Halsey, Mark A. Brzezinski, Norman B. Nelson, David P. Nicholson, Heidi M. Sosik, Shawnee Traylor, Ivona Cetinić, Alyson E. Santoro, Olivier Marchal, Sasha J. Kramer, Erik Fields, Nicolas Cassar, James Fox, Laure Resplandy, Claudia R. Benitez-Nelson, Vinicius Amaral, Weiyi Tang, Alexandria K. Niebergall, Françoise Morison, Scott A. Freeman, Geneviève Potvin, Shannon Burns, Benjamin A. S. Van Mooy, Karen Stamieszkin, Craig M. Lee, Andrew F. Thompson, Brian N. Popp, Mary Jane Perry, Nils Haëntjens, Amy E. Maas, Lionel Guidi, Emmanuel Boss, Collin S. Roesler
Publikováno v:
Elementa: Science of the Anthropocene
Elementa: Science of the Anthropocene, University of California Press, 2021, 9 (1), ⟨10.1525/elementa.2020.00107⟩
Elementa: Science of the Anthropocene, University of California Press, 2021, 9 (1), ⟨10.1525/elementa.2020.00107⟩
International audience; The goal of the EXport Processes in the Ocean from RemoTe Sensing (EXPORTS) field campaign is to develop a predictive understanding of the export, fate, and carbon cycle impacts of global ocean net primary production. To accom
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4391c25d79496debefdb49b25e75e75a
https://resolver.caltech.edu/CaltechAUTHORS:20210916-165412281
https://resolver.caltech.edu/CaltechAUTHORS:20210916-165412281
Autor:
Mariana B. Bif, Annie Bourbonnais, Dennis A. Hansell, Julie Granger, Holly Westbrook, Mark A. Altabet
Publikováno v:
Marine Chemistry. 244:104136
Autor:
Dennis A. Hansell, Mariana B. Bif
Publikováno v:
Global Biogeochemical Cycles. 33:526-539
Autor:
Dennis A. Hansell, Craig A. Carlson, Shuting Liu, Keri Opalk, Jacqueline Comstock, Lihini I. Aluwihare, Daniel Petras, Brandon M. Stephens
Publikováno v:
Frontiers in Marine Science, Vol 7 (2020)
Frontiers in Marine Science
Frontiers in Marine Science
The bioavailability of organic matter (OM) to marine heterotrophic bacterioplankton is determined by both the chemical composition of OM and the microbial community composition. In the current study, changes in OM bioavailability were identified at O