Arctic sea-level reconstruction analysis using recent satellite altimetry

We present a sea-level reconstruction for the Arctic Ocean using recent satellite altimetry data. The model, forced by historical tide gauge data, is based on empirical orthogonal functions (EOFs) from a calibration period; for this purpose, newly retracked satellite altimetry from ERS-1 and -2 and...

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Bibliographic Details
Main Authors: Svendsen, Peter Limkilde, Andersen, Ole Baltazar, Nielsen, Allan Aasbjerg
Format: Conference Object
Language:English
Published: 2014
Subjects:
/dk/atira/pure/sustainabledevelopmentgoals/climate_action
name=SDG 13 - Climate Action
Arctic
Arctic Ocean
Online Access:https://orbit.dtu.dk/en/publications/e9f53570-bb3d-4cbf-8151-8f82b439e26a
https://backend.orbit.dtu.dk/ws/files/96647017/EGU2014_14578.pdf
http://meetingorganizer.copernicus.org/EGU2014/EGU2014-14578.pdf
Description
Summary:We present a sea-level reconstruction for the Arctic Ocean using recent satellite altimetry data. The model, forced by historical tide gauge data, is based on empirical orthogonal functions (EOFs) from a calibration period; for this purpose, newly retracked satellite altimetry from ERS-1 and -2 and Envisat has been used. Despite the limited coverage of these datasets, we have made a reconstruction up to 82 degrees north for the period 1950–2010. We place particular emphasis on determining appropriate preprocessing for the tide gauge data, and on validation of the model, including the ability to reconstruct known data. The relationship between the reconstruction and climatic variables, such as atmospheric pressure, and climate oscillations, including the Arctic Oscillation (AO), is examined.

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