Sea Level Budgets Should Account for Ocean Bottom Deformation

©2020. The Authors.

Bibliographische Detailangaben
Veröffentlicht in:Geophysical research letters. - 1984. - 47(2020), 3 vom: 16. Feb., Seite e2019GL086492
1. Verfasser: Vishwakarma, B D (VerfasserIn)
Weitere Verfasser: Royston, S, Riva, R E M, Westaway, R M, Bamber, J L
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2020
Zugriff auf das übergeordnete Werk:Geophysical research letters
Schlagworte:Journal Article GRACE altimetry ocean bottom deformation sea level budget solid‐Earth response steric
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520 |a The conventional sea level budget (SLB) equates changes in sea surface height with the sum of ocean mass and steric change, where solid-Earth movements are included as corrections but limited to the impact of glacial isostatic adjustment. However, changes in ocean mass load also deform the ocean bottom elastically. Until the early 2000s, ocean mass change was relatively small, translating into negligible elastic ocean bottom deformation (OBD), hence neglected in the SLB equation. However, recently ocean mass has increased rapidly; hence, OBD is no longer negligible and likely of similar magnitude to the deep steric sea level contribution. Here, we use a mass-volume framework, which allows the ocean bottom to respond to mass load, to derive a SLB equation that includes OBD. We discuss the theoretical appearance of OBD in the SLB equation and its implications for the global SLB 
650 4 |a Journal Article 
650 4 |a GRACE 
650 4 |a altimetry 
650 4 |a ocean bottom deformation 
650 4 |a sea level budget 
650 4 |a solid‐Earth response 
650 4 |a steric 
700 1 |a Royston, S  |e verfasserin  |4 aut 
700 1 |a Riva, R E M  |e verfasserin  |4 aut 
700 1 |a Westaway, R M  |e verfasserin  |4 aut 
700 1 |a Bamber, J L  |e verfasserin  |4 aut 
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