1 / 9

Understanding Sea Level Change: A Comprehensive Overview

Explore present-day sea level change trends and mass variations in Greenland and Antarctica, based on data and research from the University of Colorado. Learn about satellite altimetry, GRACE mission results, and spatial variations in sea level rise. Dive into the details of Antarctic ice volume changes and their impact on global sea levels.

matana
Download Presentation

Understanding Sea Level Change: A Comprehensive Overview

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. What's Happening in the Bathtub?: An Overview of Present-Day Sea Level Change R. Steven Nerem University of Colorado Department of Aerospace Engineering Sciences Colorado Center for Astrodynamics Research Cooperative Institute for Research in Environmental Sciences

  2. Satellite Altimetry Trend = 3.4 mm/year http://sealevel.colorado.edu

  3. Detrended GMSL and MEI

  4. Spatial Variations in Sea Level Rise 1993-2009

  5. GRACEGravity Recovery and Climate Experiment

  6. GRACE Global Ocean Mass Variations

  7. Greenland Mass Change from GRACE Total Greenland ice volume Rate of mass change during April, 2002 – February, 2009 Rate of mass change: All Greenland: -235 Gton/yr South Greenland: -169 Gton/yr North Greenland: -65 Gton/yr 362 Gt/yr = 362 km3/year water = 1 mm/yr sea level rise [Wahr, 2009] -235 Gton/yr = 0.65 mm/yr sea level rise

  8. Greenland Mass Change from GRACE [Wahr, 2009]

  9. Antarctica Mass Change from GRACE Total Antarctic ice volume. April, 2002 – February, 2009 Rate of mass change after removing ICE5G rebound model: All Antarctica: -169 Gton/yr West Antarctica: -128 Gton/yr East Antarctica: -36 Gton/yr Amundsen Sea glaciers Uncertainty of post-glacial rebound correction: All Antarctica: ± 75 km3/yr West Antarctica: ± 20 km3/yr East Antarctica: ± 50 km3/yr -169 Gton/yr = 0.47 mm/yr sea level rise [Wahr, 2009]

More Related