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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Vitenskapelig artikkelSimulated Abrupt Shifts in Aerobic Habitats of Marine Species in the Past, Present, and Future– Earth's Future 2024
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Vitenskapelig artikkelSimulated Abrupt Shifts in Aerobic Habitats of Marine Species in the Past, Present, and Future– Earth's Future 2024
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Vitenskapelig artikkelMore Frequent Abrupt Marine Environmental Changes Expected– Geophysical Research Letters 2024
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Vitenskapelig artikkelA Synthesis of Global Coastal Ocean Greenhouse Gas Fluxes– Global Biogeochemical Cycles 2024
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KonferanseforedragInfluence of AMOC decline and recovery on ZEC and TCRE– An assessment of TCRE and ZEC 2024
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Vitenskapelig artikkelCarbon cycle feedbacks in an idealized simulation and a scenario simulation of negative emissions in CMIP6 Earth system models– Biogeosciences 2024
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Vitenskapelig artikkelGlobal Carbon Budget 2023– Earth System Science Data 2023
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KonferanseforedragRegional response of the Greenland ice sheet to overshoot scenarios– BCCR Regional Climate Information Mini-Workshop 2023
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KonferanseforedragLessons from COVID-19 emission reduction simulations with NorESM2– CACTI (Composition Air quality Climate inTeractions Initiative) workshop 2023 2023
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Vitenskapelig artikkelSimulations of ocean deoxygenation in the historical era: insights from forced and coupled models– Frontiers in Marine Science 2023
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Vitenskapelig artikkelMagnitude, Trends, and Variability of the Global Ocean Carbon Sink From 1985 to 2018– Global Biogeochemical Cycles 2023
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Vitenskapelig artikkelIrreversible loss in marine ecosystem habitability after a temperature overshoot– Communications Earth & Environment 2023
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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
