
Member Since 2003
Baerbel Hoenisch
Professor, Columbia University
AGU Research
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Timing Is Everything
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
18 december 2024
Thomas Westerhold, Claudia Agnini, Eleni Anagnosto...
Deep ocean sediments document past environmental changes over space and time. The information gleaned from such deposits allows scientists to test ...
Refining the Boron Isotope Proxy in Planktic Foraminifera: An Exploration of Discrepancies between Culture Experiments and in situ Calibrations
UNDERGRADUATE AND EARLY-STAGE GRADUATE STUDENT POSTERS IN PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY II POSTER
paleoceanography and paleoclimatology | 12 december 2024
Annabella Amato, Timothy C. Kenna, Louise L. Bolge...
Rising atmospheric CO2 increases Earths greenhouse effect and acidifies seawater but the future remains uncertain when it comes to quantifying how ext...
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A New Perspective on Glacial Arctic Ventilation from Surface-to-Deep Paleo pH Reconstructions
PALEOCEANOGRAPHY, PALEOCLIMATE, AND PALEOECOLOGY OF THE ARCTIC–NORTH PACIFIC–NORTH ATLANTIC GATEWAYS AND SURROUNDING BORDERLANDS POSTER
paleoceanography and paleoclimatology | 10 december 2024
Jesse R. Farmer, Baerbel Hoenisch, Jannik Martens,...
The formation of dense waters that ventilate the deep Arctic Ocean (below 1.5 km depth) has important consequences for regional oceanic uptake of atmo...
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A Bayesian Forward Model of the Marine Carbonate Stable Boron Isotope Paleo-CO2 Proxy System for Multi-site and Multi-species Reconstruction
ADVANCING PALEOCLIMATOLOGY BY COMBINING DATA, MODELS, AND THEORY I ORAL
paleoceanography and paleoclimatology | 09 december 2024
Dustin Harper, Gabriel J. Bowen, Baerbel Hoenisch,...
The stable boron isotopic composition (δ11B) of marine carbonates is a well-established proxy of sea surface pH and, by extension, atmospheric CO2. In...
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Atmospheric CO2 Estimates for the Late Oligocene and Early Miocene Using Multi‐Species Cross‐Calibrations of Boron Isotopes
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
09 january 2024
Lloyd B. Anderson, Baerbel Hoenisch, Helen K. Coxa...
The boron isotope (δ11B) proxy for seawater pH is a tried and tested means to reconstruct atmospheric CO2 in the geologic past, but uncertaint...
Combining molecular, morphometric, and trace element geochemical analysis for a single foraminifera shell: a promising workflow for species with cryptic diversity
BIOMINERALIZERS AS PROXIES: INSIGHTS FOR PALEOCEANOGRAPHY II POSTER
paleoceanography and paleoclimatology | 14 december 2023
M Kelsey Lane, Jennifer S. Fehrenbacher, Baerbel H...
The discovery of cryptic genetic diversity within foraminifera morphospecies may complicate the well-established use of foraminiferal fossils as geoch...
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Bayesian Paleo-Environment Reconstructor (BPER): A new R package for multi-proxy paleo-CO2 reconstruction
ADVANCES IN THE RECONSTRUCTION OF THE GLOBAL CARBON CYCLE OVER GEOLOGIC TIME II POSTER
paleoceanography and paleoclimatology | 13 december 2023
Dustin Harper, Gabriel J. Bowen, Baerbel Hoenisch,...
Reconstructing atmospheric CO2 over geologic timescales requires indirect proxy-based measurements from archives which record past environments. Howev...
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Determining the Influence of Ocean Alkalinity Enhancement (OAE) on Foraminifera Calcification via MicroCT Imaging
CARBON DIOXIDE REMOVAL IN THE COASTAL AND OPEN OCEAN: CURRENT KNOWLEDGE AND FUTURE DIRECTIONS II POSTER
ocean sciences | 11 december 2023
Laura Haynes, Jennifer S. Fehrenbacher, Elise Poni...
Alkalinity enhancement of open ocean and coastal environments has been proposed as a scalable method for CO2 drawdown. However, the effects of OAE on ...
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