Affordable Access

Sea level reconstruction from satellite altimetry and tide gauge data

Authors
Publisher
Copernicus GmbH
Publication Date
Keywords
  • Ocean Satellite Altimetry Has Provided Global Sets Of Sea Level Data For The Last Two Decades
  • Allowing Determination Of Spatial Patterns In Global Sea Level
  • For Reconstructions Going Back Further Than This Period
  • Tide Gauge Data Can Be Used As A Proxy
  • We Examine Different Methods Of Combining Satellite Altimetry And Tide Gauge Data Using Optimal Weig
  • Linear Regression And Eofs
  • Including Automatic Quality Checks Of The Tide Gauge Time Series
  • We Attempt To Augment The Model Using Various Proxies Such As Climate Indices Like The Nao And Pdo
  • And Investigate Alternative Transformations Such As Maximum Autocorrelation Factors (Maf)
  • Which Better Take Into Account The Spatio-Temporal Structure Of The Variation
  • Rather Than Trying To Maximize The Amount Of Variance Explained
  • The Maf Transform Considers Noise To Be Uncorrelated With A Spatially Or Temporally Shifted Version
  • Whereas The Desired Signal Will Exhibit Autocorrelation
  • This Will Be Applied To A Global Dataset
  • Necessitating Wrap-Around Consideration Of Spatial Shifts
  • Our Focus Is A Timescale Going Back Approximately 50 Years
  • Allowing Reasonable Global Availability Of Tide Gauge Data
  • This Allows For Better Sensitivity Analysis With Respect To Spatial Distribution
  • And Tide Gauge Data Are Available Around The Arctic Ocean
  • Which May Be Important For A Later High-Latitude Reconstruction

Abstract

Sea level reconstruction from satellite altimetry and tide gauge data - DTU Orbit (26/04/14) Sea level reconstruction from satellite altimetry and tide gauge data - DTU Orbit (26/04/14) Sea level reconstruction from satellite altimetry and tide gauge data Svendsen, P. L., Andersen, O. B. & Nielsen, A. A. 2012 In : Geophysical Research Abstracts. 14, p. EGU2012-2746-2 1 p. Publication: Research - peer-review › Conference abstract in journal – Annual report year: 2012

There are no comments yet on this publication. Be the first to share your thoughts.