CT14C:
Revealing Biogeochemical Processes on Basin Scales Through Ocean Transects IV Posters

Session ID#: 84582

Session Description:
Biogeochemical processes that affect the cycling of trace elements and their isotopes, as well as carbon, macronutrients and other constituents, are studied using two basic field strategies: sampling at a fixed station or regime to measure rates and examine specific processes, or transects on up to basin scales. Each has its strengths and weaknesses, but transects can gather a broad sweep of information on a relatively short time scale that can then be used to develop a more specific process-oriented approach. Indeed, the GEOSECS program of the 1970’s used the transect approach, and currently the GO-SHIP/Repeat Hydrography and international GEOTRACES programs feature long ocean transects. This session will highlight biogeochemical processes revealed on basin transects that affect trace constituents such as trace elements and isotopes, as well as organic constituents, including carbon and macronutrients. It will also focus on sampling and data analysis methods applied to sampling across basins, and biogeochemical modeling studies that integrate data from long transects into their analyses.
Co-Sponsor(s):
  • NC - Nutrient Cycling
  • OB - Ocean Biology and Biogeochemistry
  • OM - Ocean Modeling
Index Terms:

4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: CHEMICAL]
4808 Chemical tracers [OCEANOGRAPHY: CHEMICAL]
4860 Radioactivity and radioisotopes [OCEANOGRAPHY: CHEMICAL]
4875 Trace elements [OCEANOGRAPHY: CHEMICAL]
Primary Chair:  Gregory A Cutter, Old Dominion University, Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States
Co-chairs:  Phoebe J Lam, University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, Karen L Casciotti, Stanford University, Earth System Science, Stanford, United States and Rob Middag, NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University, OCS, Den Burg, Netherlands
Primary Liaison:  Gregory A Cutter, Old Dominion University, Norfolk, VA, United States
Moderators:  Gregory A Cutter, Old Dominion University, Norfolk, VA, United States and Rob Middag, NIOZ Royal Netherlands Institute for Sea Research, and Utrecht University, OCS, Den Burg, Netherlands
Student Paper Review Liaison:  Gregory A Cutter, Old Dominion University, Norfolk, VA, United States

Abstracts Submitted to this Session:

 
On using Si to unravel potential sources of dissolved Al to the deep Arctic (648449)
Chris I Measures and Mariko Hatta, University of Hawaii at Manoa, Oceanography, Honolulu, HI, United States
 
The Influence of Water Mass Mixing and Particle Dissolution on the Silicon Cycle in the Central Arctic Ocean (640177)
Claudia Ehlert1, Bianca T. P. Liguori1 and Katharina Pahnke2, (1)University of Oldenburg, Institute for Chemistry and Biology of the Marine Environment (ICBM), Oldenburg, Germany, (2)University of Oldenburg, Institute for Chemistry and Biology of the Marine Environment (ICBM), Germany
 
Variations in Salinity and Oxygen Isotopes in the Southern Indian Ocean (657168)
Haley Courser, California State University Sacramento, Sacramento, CA, United States, Nicholas Waring, California State University Sacramento, Geology, Sacramento, CA, United States, Amy J Wagner, California State University Sacramento, Geology Department, Sacramento, CA, United States, Elisabeth L Sikes, Rutgers University, Piscataway, United States, Thomas Williams, British Antarctic Survey, Cambridge, United Kingdom and Sujata A Murty, Organization Not Listed, Washington, United States
 
Mapping Oxygen Isotopes in the North Pacific Ocean (657682)
Kailah Jenkins and Amy J Wagner, California State University Sacramento, Geology Department, Sacramento, CA, United States
 
Dissolved Organic Phosphorus (DOP) Distributions in the Eastern Indian Ocean and Subtropical South Pacific Ocean (643549)
Zhou Liang, Florida State University, department of earth, ocean & atmospheric science, Tallahassee, FL, United States, Robert T Letscher, University of New Hampshire, Earth Sciences, Durham, NH, United States, Kelly McCabe, University of South Carolina, School of the Earth, Ocean, and Environment, Columbia, SC, United States, Dario Marconi, Princeton University, Department of Geosciences, Princeton, NJ, United States, Daniel Mikhail Sigman, Princeton University, Geosciences, Princeton, United States and Angela N Knapp, Florida State University, Tallahassee, FL, United States
 
Anthropogenic CO2 accumulation in the Indian Ocean (1995 to 2018). Results from the GO-SHIP I07N repeat-hydrography transect. (657015)
Carmen Rodriguez, University of Miami, RSMAS, Miami, FL, United States and Frank J Millero Jr, University of Miami, RSMAS, Ocean Sciences, Miami, FL, United States
 
The Distribution of Size-Fractionated Particulate Organic Carbon Concentrations along a Meridional Transect in the Pacific (639437)
Phoebe J Lam1, Nick Carracino2, Sophie Rojas2 and James K B Bishop3, (1)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, (2)University of California Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States, (3)UC, Berkeley, Berkeley, CA, United States
 
Autonomous Optics of the Ocean Biological Carbon Pump: PIC and particle birefringence along the GEOTRACES GP15 transect. (655681)
James K B Bishop1, Vinicius Jose Amaral2, Phoebe J Lam2, Cristina Orrico3, Todd Wood4 and Thorsten Stezelberger5, (1)University of California Berkeley, Berkeley, CA, United States, (2)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, (3)Sea-Bird Scientific, Philomath, OR, United States, (4)Lawrence Berkeley National Laboratory, Earth and Environmental Sciences Area, Berkeley, CA, United States, (5)Lawrence Berkeley National Laboratory, Berkeley, CA, United States
 
The Distribution of Particulate Trace Elements along a Meridional Transact in the Pacific (648455)
Jong-Mi Lee1, Phoebe J Lam2 and Allison Laubach1, (1)University of California Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States, (2)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States
 
Biogeochemical Dynamics of Particulate Trace Metals in the South-East Atlantic along the GEOTRACES GA08 Section Cruise (642932)
Ali Al-Hashem1,2, Aaron J Beck1, Stephan Krisch3, Tim Steffens1 and Eric P Achterberg2,3, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany, (2)University of Kiel, Kiel, Germany, (3)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
 
Carbon export and particulate trace metal cycling across the Western Arctic Ocean (650959)
Erin E Black1,2, Matthew A Charette3, Phoebe J Lam4, Robert F Anderson5, Lauren Elizabeth Kipp6, Yang Xiang4, Sebastian M Vivancos7, Stephanie Kienast1 and Ken Buesseler8, (1)Dalhousie University, Halifax, NS, Canada, (2)Lamont -Doherty Earth Observatory, Palisades, United States, (3)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (4)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, (5)Lamont-Doherty Earth Obs, Palisades, NY, United States, (6)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (7)Columbia University, Department of Earth and Environmental Sciences, New York, NY, United States, (8)Woods Hole Oceanographic Institution, Department of Marine Chemistry & Geochemistry, Woods Hole, MA, United States
 
Dissolved And Particulate 226Ra Along GEOTRACES Pacific Meridional Transect (651176)
Emilie Le Roy1, Matthew A Charette1, Tristan J Horner2, Paul Henderson1, Pieter van Beek3 and Marc Souhaut3, (1)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (2)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, United States, (3)LEGOS Laboratoire d'Etudes en Geophysique et Oceanographie Spatiale, Toulouse, France
 
Following the Trail of Fukushima Tracers: Introducing Part II – Seven Years of North Pacific Mode Water Evolution (651780)
Sachiko Yoshida, Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, United States, Alison M Macdonald, Woods Hole Oceanographic Institution, PO, Woods Hole, United States and Irina Rypina, Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States
 
227Ac along the GEOTRACES Meridional Pacific Transect: Preliminary Results (649330)
Douglas E Hammond1, Nathaniel James Kemnitz2, Paul Henderson3, Emilie Le Roy3, Matthew A Charette3, Willard S Moore4, Robert F Anderson5 and Martin Q Fleisher5, (1)University of Southern California, Los Angeles, CA, United States, (2)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (3)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (4)University of South Carolina, School of the Earth, Ocean, and Environment, Columbia, SC, United States, (5)Lamont-Doherty Earth Obs, Palisades, NY, United States
 
Near-bottom 230Th and 231Pa Scavenging and Anomalous 230Th Burial Rates in the South Pacific (651705)
Martin Q Fleisher1, Frank J Pavia2, Robert F Anderson3, Sebastian M Vivancos4, Jordan T Abell5 and Gisela Winckler4, (1)Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States, (2)Lamont-Doherty Earth Obs, Palisades, United States, (3)Lamont-Doherty Earth Obs, Palisades, NY, United States, (4)Columbia University, Department of Earth and Environmental Sciences, New York, NY, United States, (5)Lamont-Doherty Earth Observatory, Palisades, NY, United States
 
Nd isotopic composition and REE concentrations in the Bering Sea and the North Pacific (641199)
Hajime Obata, The University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan, Takuya Hara, The University of Tokyo, Kashiwa, Japan and Hirofumi Tazoe, Hirosaki University, Aomori, Japan
 
GEOTRACES GP15 Meridional Section: Preliminary Results for REEs, Ba, V, methane, and Other Dissolved Trace Elements (656580)
Alan M Shiller, University of Southern Mississippi, Marine Science, Stennis Space Center, MS, United States
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