QICS Paper: Modelling Large-Scale CO2 Leakages in the North Sea
A three dimensional hydrodynamic model with a coupled carbonate speciation sub-model is used to simulate large additions of CO2 into the North Sea, representing leakages at potential carbon sequestration sites. A range of leakage scenarios are conducted at two distinct release sites, allowing an analysis of the seasonal, inter-annual and spatial variability of impacts to the marine ecosystem. Seasonally stratified regions are shown to be more vulnerable to CO2 release during the summer as the added CO2 remains trapped beneath the thermocline, preventing outgasing to the atmosphere. On average, CO2 injected into the northern North Sea is shown to reside within the water column twice as long as an equivalent addition in the southern North Sea before reaching the atmosphere. Short-term leakages of 5000 tonnes CO2 over a single day result in substantial acidification at the release sites (up to -1.92 pH units), with significant perturbations (greater than 0.1 pH units) generally confined to a 10 km radius. Long-term CO2 leakages sustained for a year may result in extensive plumes of acidified seawater, carried by major advective pathways. Whilst such scenarios could be harmful to marine biota over confined spatial scales, continued unmitigated CO2 emissions from fossil fuels are predicted to result in greater and more long-lived perturbations to the carbonate system over the next few decades. This is a publication in QICS Special Issue - International Journal of Greenhouse Gas Control, Jack J.C. Phelps et. al. Doi:10.1016/j.ijggc.2014.10.013.
INSPIRE
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- File identifier
- 17c77398-fe21-5485-e054-002128a47908 XML
- Resource type
- nonGeographicDataset
Online resource
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- English (en)
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- Geoscientific information
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Coupled resource
Coupled resource
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Coupled resource
Coupled resource
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- GEMET - INSPIRE themes, version 1.0
- BGS Thesaurus of Geosciences
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- NGDC Deposited Data
- Carbon capture and storage
- UKCCS
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- 2014-11-25
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- The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
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- National Oceanography Centre Liverpool
- not available
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- National Oceanography Centre Liverpool
- not available
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- National Oceanography Centre Liverpool
- not available
- Organisation name
- National Oceanography Centre Liverpool
- not available
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- British Geological Survey
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- Metadata Date
- 2024-04-21
- Metadata Language
- English (en)