Data_Sheet_1_Contribution of Land Water Storage Change to Regional Sea-Level Rise Over the Twenty-First Century.PDF (1.82 MB)
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Data_Sheet_1_Contribution of Land Water Storage Change to Regional Sea-Level Rise Over the Twenty-First Century.PDF

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posted on 12.05.2021, 15:27 authored by Sitar Karabil, Edwin H. Sutanudjaja, Erwin Lambert, Marc F. P. Bierkens, Roderik S. W. Van de Wal

Change in Land Water Storage (LWS) is one of the main components driving sea-level rise over the twenty-first century. LWS alteration results from both human activities and climate change. Up to now, all components to sea-level change are usually quantified upon a certain climate change scenario except land water changes. Here, we propose to improve this by analyzing the contribution of LWS to regional sea-level change by considering five Coupled Model Intercomparison Project Phase 5 (CMIP5) climate models forced by three different Representative Concentration Pathway (RCP) greenhouse gas emission scenarios. For this analysis, we used LWS output of the global hydrological and water resources model, PCR-GLOBWB 2, in order to project regional sea-level patterns. Projections of ensemble means indicate a range of LWS-driven sea-level rise with larger differences in projections among climate models than between scenarios. Our results suggest that LWS change will contribute around 10% to the projected global mean sea-level rise by the end of twenty-first century. Contribution of LWS to regional sea-level rise is projected to be considerably larger than the global mean over several regions, up to 60% higher than global average of LWS-driven sea-level rise, including the Pacific islands, the south coast of Africa and the west coast of Australia.

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