PC14B:
Toward a 1.5°C World: Mechanisms of Ocean Sensitivity and Reversibility II Posters
PC14B:
Toward a 1.5°C World: Mechanisms of Ocean Sensitivity and Reversibility II Posters
Toward a 1.5°C World: Mechanisms of Ocean Sensitivity and Reversibility II Posters
Session ID#: 37815
Session Description:
The ocean plays a key role in modulating the response of the Earth system to anthropogenic climate change through the uptake, transport, and storage of excess heat and carbon. In order to inform the development of feasible mitigation scenarios that are consistent with the COP21 Agreement targets of limiting global temperature rise to less than 1.5 to 2 C above preindustrial levels, it is important to understand processes relevant to the ocean’s role in sequestering heat and carbon and work toward quantifying and reducing their uncertainties. It is increasingly likely that without substantial near-term reductions in carbon emissions, the world will experience “overshoot” scenarios where the COP21 temperature targets are temporarily exceeded. Ultimately, achieving these targets may necessitate subsequent negative emissions though geoengineering measures. It is important to understand what changes to the ocean will occur under such scenarios, their reversibility, and their timescales. Based on observations and modeling efforts, this session explores mechanisms of uptake, transport, and storage of heat and carbon as they relate to ocean sensitivity and reversibility under different mitigation scenarios aimed at limiting global warming.
Primary Chair: John P Krasting, NOAA / Geophysical Fluid Dynamics Laboratory, Princeton, NJ, United States
Co-chairs: Ivy Frenger, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, Andrew Lenton, CSIRO Hobart, Hobart, TAS, Australia and Kirsten Zickfeld, Simon Fraser University, Department of Geography, Burnaby, BC, Canada
Moderators: Kirsten Zickfeld, Simon Fraser University, Department of Geography, Burnaby, BC, Canada and Andrew Lenton, CSIRO Hobart, Hobart, TAS, Australia
Student Paper Review Liaisons: Andrew Lenton, CSIRO Hobart, Hobart, TAS, Australia and Kirsten Zickfeld, Simon Fraser University, Department of Geography, Burnaby, BC, Canada
Index Terms:
1630 Impacts of global change [GLOBAL CHANGE]
1635 Oceans [GLOBAL CHANGE]
4255 Numerical modeling [OCEANOGRAPHY: GENERAL]
4273 Physical and biogeochemical interactions [OCEANOGRAPHY: GENERAL]
Cross-Topics:
- AI - Air-Sea Interactions
- BN - Biogeochemistry and Nutrients
- OC - Ocean Change: Acidification and Hypoxia
- OM - Ocean Modeling
Abstracts Submitted to this Session:
Changes in Photosynthetically Available Radiation and Impacts on the Oceanic Carbon and Heat Uptake (312551)
Difference of Dynamic Sea Level Changes between Extended RCP2.6 and RCP4.5 Senarios in MIROC5.0 (314849)
Observational, Geological and Theoretical Constraints on Emissions Pathways to 1.5 and 2 °C Warming (321349)
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