File:Recent Sea Level Rise German.png
Recent_Sea_Level_Rise_German.png (537 × 373 pixels, file size: 44 KB, MIME type: image/png)
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Translation
[edit]This is the German translation of the original English image, created by Xavax.
Summary
[edit]This figure shows the change in annually averaged sea level at 23 geologically stable tide gauge sites with long-term records as selected by Douglas (1997). The thick dark line is a three-year moving average of the instrumental records. This data indicates a sea level rise of ~18.5 cm from 1900-2000. Because of the limited geographic coverage of these records, it is not obvious whether the apparent decadal fluctuations represent true variations in global sea level or merely variations across regions that are not resolved.
For comparison, the recent annually averaged satellite altimetry data [1] from TOPEX/Poseidon are shown in red. These data indicate a somewhat higher rate of increase than tide gauge data, however the source of this discrepancy is not obvious. It may represent systematic error in the satellite record and/or incomplete geographic sampling in the tide gauge record. The month to month scatter on the satellite measurements is roughly the thickness of the plotted red curve.
Much of recent sea level rise has been attributed to global warming.
Data
[edit]Original data for this figure is from the Permanent Service for Mean Sea Level [2] archive copy at the Wayback Machine (PSMSL). Douglas (1997), defined the following criteria for selecting records from the PSMSL which were long, reliable, and avoided large vertical geologic changes:
- Each record should be at least 60 years in length
- Not be located at collisional plate boundaries
- At least 80% complete
- Show reasonable agreement at low frequencies with nearby gauges sampling the same water mass
- Not be located in regions subject to large post-glacial rebound
He subsequently identified 24 PSMSL records meeting all five of these criteria:
- Auckland, New Zealand, 1903–2000
- Balboa, Panama, 1908–1996
- Brest, France, 1807–2000
- Buenos Aires, Argentina, 1905–1987
- Cascais, Portugal, 1882–1993
- Cristobal, Panama, 1909–1980
- Dunedin, New Zealand, 1900–1998
- Fernandina, Florida, 1897–2003
- Genova, Italy, 1884–1997
- Honolulu, Hawaii, 1905–2003
- Key West, Florida, 1913–2003
- Lagos, Portugal, 1908–1999
- La Jolla, California, 1924–2003
- Lyttelton, New Zealand, 1924–2000
- Marseille, France, 1885–2000
- Newlyn, Cornwall, England, 1915–2003
- Pensacola, Florida, 1923–2003
- Quequen, Argentina, 1918–1982
- San Diego, California, 1906–2003
- San Francisco, California, 1854–2003
- Santa Cruz de Tenerife, Canary Islands, 1927–1990
- Santa Monica, California, 1933–2003
- Trieste, Italy, 1905–2001
- Wellington, New Zealand, 1901–1988
After slight corrections following Douglas (1997) for any remaining post-glacial rebound at these sites (typically ~3 cm/century), the tide gauge data from these sites were plotted in no particular order as the thin lines in the above figure. One site, Wellington, was omitted because the author of this figure was unable to locate the corresponding record from the PSMSL.
Copyright
[edit]This figure was prepared from publicly available data by Robert A. Rohde and is incorporated into the Global Warming Art project.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | ||
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This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
Reference
[edit]Bruce C. Douglas (1997). "Global Sea Rise: A Redetermination". Surveys in Geophysics 18: 279-292.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 19:02, 14 July 2008 | 537 × 373 (44 KB) | Xavax (talk | contribs) | ==Translation== This is the German translation of the original English image, created by Xavax. ==Description== [[Image:Instrumental Temperature Record.png|thumb|right|250px|Temperature changes during a similar period and possibly res | |
22:17, 31 March 2007 | 537 × 373 (43 KB) | Xavax (talk | contribs) | ==Translation== This is the German translation of the original English image, created by Xavax. ==Description== [[Image:Instrumental Temperature Record.png|thumb|right|250px|Temperature changes during a similar period and possibly res | ||
19:11, 23 September 2006 | 537 × 373 (40 KB) | Xavax (talk | contribs) | ==Description== thumb|right|250px|Temperature changes during a similar period and possibly responsible for causing the observed sea level rise. [[Image:Holocene Sea Level.png|thumb|right|250px|Sea level varia |
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