I have a broad background in earth system modelling and data assimilation. Generally speaking, I am interested in the interactions of biogeochemical cycles with the climate system and in describing these complex processes with numerical models. More specifically, I work on modelling carbon cycling within the Earth system and on constraining these processes with observations. I am involved into the efforts of the Global Carbon Project to quantify the contemporary global to regional carbon sinks. I am also interested in assessing climate mitigation pathways and options using Earth system model scenarios and experiments. Over the past years, I have been one of the main developers of the ocean biogeochemistry module of the Norwegian Earth System Model (NorESM).
Divisjon
Klima og miljø
Forskningstema
Forskergrupper
Mer info om Jörg
Prosjekter
Publikasjoner
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KonferanseforedragCarbon cycle feedbacks under negative emissions in CMIP6 Earth system models– Workshop on High-latitude Earth Climate System 2023
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Vitenskapelig artikkelSeasonal variability of the surface ocean carbon cycle: A synthesis– Global Biogeochemical Cycles 2023
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Vitenskapelig artikkelClimate-driven variability of the Southern Ocean CO2 sink– Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 2023
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KonferanseforedragResponse of the Greenland Ice Sheet to temperature overshoot scenarios– Joint CESM Land Ice - Polar Climate Working Group meeting 2023
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KonferanseforedragResponse of the Greenland Ice Sheet to temperature overshoot scenarios– Greenland Ice Sheet stability - Lessons from the past Workshop 2023
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KonferanseforedragResponse of the Greenland Ice Sheet to temperature overshoot scenarios– EGU General Assembly 2023 2023
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KonferanseforedragChanges in global fire regimes under idealized overshoot scenarios– EGU General Assembly 2023 2023
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Vitenskapelig artikkelThe representation of alkalinity and the carbonate pump from CMIP5 to CMIP6 Earth system models and implications for the carbon cycle– Biogeosciences 2023
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Vitenskapelig artikkelGlobal Surface Ocean Acidification Indicators From 1750 to 2100– Journal of Advances in Modeling Earth Systems 2023
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KonferanseforedragConstraining ocean carbon sink projections in CMIP6 models– EGU 2023 2023
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Vitenskapelig artikkelRiverine impact on future projections of marine primary production and carbon uptake– Biogeosciences 2023
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KonferanseforedragCarbon cycle feedbacks in an idealized and a scenario simulation of carbon dioxide removal in CMIP6 Earth system models– EGU General Assembly 2022
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KonferanseforedragConstraining the large spread in ocean carbon sinks in ESMs– ECMWF 6th WGNE workshop on systematic errors in weather and climate models 2022
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Vitenskapelig artikkelEmit now, mitigate later? Earth system reversibility under overshoots of different magnitudes and durations– Earth System Dynamics (ESD) 2022
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Vitenskapelig artikkelGlobal Carbon Budget 2021– Earth System Science Data 2022
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KonferanseforedragDetecting ecosystem-relevant crossings of thresholds– EGU General Assembly 2022 2022
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Vitenskapelig artikkelHow Is the Ocean Anthropogenic Carbon Reservoir Filled?– Global Biogeochemical Cycles 2022
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KonferanseforedragPossibility for strong northern hemisphere high-latitude cooling under zero and negative emissions– EGU General Assembly 2022
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KonferanseforedragEmit now, mitigate later? Simulating the Earth system response to zero and negative emissions– Bjerknes Seminar 2022
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Vitenskapelig artikkelPossibility for strong northern hemisphere high-latitude cooling under negative emissions– Nature Communications 2022
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Vitenskapelig artikkelStratification constrains future heat and carbon uptake in the Southern Ocean between 30°S and 55°S– Nature Communications 2022
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KonferanseforedragEmit now, mitigate later? How can we meet the goals of the Paris Agreement?– NORCE Climate & Environment department seminar 2021 2021
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KonferanseforedragPossibility of strong northern hemisphere high-latitude cooling under negative emissions– COMFORT virtual annual meeting 2021 2021
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KonferanseforedragSkill assessment of a pan-Arctic downscaling ocean biogeochemical model (A20)– CE2COAST workshop M3.2 2021
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Vitenskapelig artikkelImplications of temperature overshoot dynamics for climate and carbon dioxide removal policies in the DICE model– Environmental Research Letters 2021
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Vitenskapelig artikkelEvaluation of ocean dimethylsulfide concentration and emission in CMIP6 models– Biogeosciences 2021
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KonferanseforedragEfficient carbon drawdown allows for a high future carbon uptake in the North Atlantic– EGU General Assembly 2021 2021
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Vitenskapelig artikkelCompatible fossil fuel CO2 emissions in the CMIP6 Earth system models’ historical and shared socioeconomic pathway experiments of the twenty-first century– Journal of Climate 2021
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Vitenskapelig artikkelEvaluating the biological pump efficiency of the Last Glacial Maximum ocean using d13C– Climate of the Past 2021
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Vitenskapelig artikkelThe response of terrestrial ecosystem carbon cycling under different aerosol-based radiation management geoengineering– Earth System Dynamics (ESD) 2021
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Vitenskapelig artikkelOverview of the Norwegian Earth System Model (NorESM2) and key climate response of CMIP6 DECK, historical, and scenario simulations– Geoscientific Model Development 2020
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Vitenskapelig artikkelGlobal Carbon Budget 2020– Earth System Science Data 2020
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Vitenskapelig artikkelA Last Glacial Maximum forcing dataset for ocean modelling– Earth System Science Data 2020
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Vitenskapelig artikkelConsistency and Challenges in the Ocean Carbon Sink Estimate for the Global Carbon Budget– Frontiers in Marine Science 2020
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KonferanseforedragParis agreement, carbon budgets and negative emissions– NORCE Climate Science Day 2020
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Vitenskapelig artikkelTracking Improvement in Simulated Marine Biogeochemistry Between CMIP5 and CMIP6– Current Climate Change Reports 2020
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Vitenskapelig artikkelCarbon–concentration and carbon–climate feedbacks in CMIP6 models and their comparison to CMIP5 models– Biogeosciences 2020
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Vitenskapelig artikkelTwenty-first century ocean warming, acidification, deoxygenation, and upper-ocean nutrient and primary production decline from CMIP6 model projections– Biogeosciences 2020
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Vitenskapelig artikkelIs there warming in the pipeline? A multi-model analysis of the Zero Emissions Commitment from CO2– Biogeosciences 2020
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Vitenskapelig artikkelOcean biogeochemistry in the Norwegian Earth System Model version 2 (NorESM2)– Geoscientific Model Development 2020
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KonferanseforedragOn the Potential of the Southern Ocean Biological Pump to Maintain the Ocean Carbon Sink under Negative Emissions– Ocean Sciences 2020 2020
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KonferanseforedragStrength and reversibility of the ocean carbon sink under negative emissions– EGU 2020 2020
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Vitenskapelig oversiktsartikkelThe impacts of ocean acidification on marine trace gases and the implications for atmospheric chemistry and climate– Proceedings of the Royal Society. Mathematical, Physical and Engineering Sciences 2020
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Vitenskapelig artikkelGlobal carbon budget 2019– Earth System Science Data 2019
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Vitenskapelig artikkelDecadal trends in the ocean carbon sink– Proceedings of the National Academy of Sciences of the United States of America 2019
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Vitenskapelig artikkelThe response of permafrost and high latitude ecosystems under large scale stratospheric aerosol injection and its termination– Earth's Future 2019
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Vitenskapelig artikkelDescription and evaluation of NorESM1-F: a fast version of the Norwegian Earth System Model (NorESM)– Geoscientific Model Development 2019
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Vitenskapelig artikkelGlobal Carbon Budget 2018– Earth System Science Data 2018
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KonferanseforedragObservations-constrained projections reveal early and strong deoxygenation in the interior North Atlantic– AGU Annual meeting 2018 2018
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Vitenskapelig artikkelSouthern Ocean controls of the vertical marine δ13C gradient – a modelling study– Biogeosciences 2018
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KonferanseforedragEarly detection of anthropogenic climate change signal in the interior subpolar North Atlantic– Ocean Deoxygenation Conference 2018
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KonferanseforedragColumbia Toppforsk project Kick-off meeting– COLUMBIA project kick-off meeting 2018
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KonferanseforedragC-isotopes in NorESM – status of implementation– Bjerknes mini-workshop on 'Paleo-CO2 variability' 2018
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KonferanseforedragOcean Carbon Cycle Feedbacks under negative Emissions– International Conference on negative CO2 Emissions 2018
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Vitenskapelig artikkelMechanisms and early detections of multidecadal oxygen changes in the interior subpolar North Atlantic– Geophysical Research Letters 2018
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KonferanseforedragOcean Carbon Cycle Feedbacks Under Negative Emissions– Workshop on Extending the Climate-Carbon Cycle Feedback Framework 2018
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Vitenskapelig artikkelOcean Carbon Cycle Feedbacks Under Negative Emissions– Geophysical Research Letters 2018
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Vitenskapelig artikkelGlobal Carbon Budget 2017– Earth System Science Data 2018
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KonferanseforedragEarly detection of anthropogenic climate change signal in the interior subpolar North Atlantic oxygen– 50th International Liege Colloquium on Ocean Dynamics 2018
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Vitenskapelig artikkelConstraining Projection-Based Estimates of the Future North Atlantic Carbon Uptake– Journal of Climate 2018
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Vitenskapelig artikkelA model-based evaluation of the Inverse Gaussian transit-time distribution method for inferring anthropogenic carbon storage in the ocean– Journal of Geophysical Research (JGR): Oceans 2018
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KonferanseforedragLow and overshoot emission scenarios – from a high to a low carbon society (LOES)– Bjerknes Days 2017 with SAC and EC 2017
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KonferanseforedragAmplification of global warming through pH-dependence of DMS-production– GESAMP WG 38 workshop on ‘Impact of Ocean Acidification on Fluxes of non-CO2 Climate-Active Species’ 2017
