SEA LEVEL RISE DUE TO GLOBAL WARMING

	SEA LEVEL RISE DUE TO GLOBAL WARMING
HOME PAGE Chemtrails Web Polymers Patents Pic Gallery Aircraft Charts Health Issues Atmospheric Physics HAARP Geoegineering Global Warming Climate Change Ozone Depletion Greenhouse Gases Phytoplankton Oceans Bush File Cheney File Iraq War "You take the blue pill and the story ends. You wake in your bed and you believe whatever you want to believe." Escape Enter "You take the red pill and you stay in Wonderland and I'll show you how deep the rabbit-hole goes." Store and Support	Vital Climate Graphics : Observed Climate Trends Next: Potential climate change impacts 17. Over the last 100 years, the global sea level has risen by about 10 to 25 cm. Sea level change is difficult to measure. Relative sea level changes have been derived mainly from tide-gauge data. In the conventional tide-gauge system, the sea level is measured relative to a land-based tide-gauge benchmark. The major problem is that the land experiences vertical movements (e.g. from isostatic effects, neotectonism, and sedimentation), and these get incorporated into the measurements. However, improved methods of filtering out the effects of long-term vertical land movements, as well as a greater reliance on the longest tide-gauge records for estimating trends, have provided greater confidence that the volume of ocean water has indeed been increasing, causing the sea level to rise within the given range. It is likely that much of the rise in sea level has been related to the concurrent rise in global temperature over the last 100 years. On this time scale, the warming and the consequent thermal expansion of the oceans may account for about 2-7 cm of the observed sea level rise, while the observed retreat of glaciers and ice caps may account for about 2-5 cm. Other factors are more difficult to quantify. The rate of observed sea level rise suggests that there has been a net positive contribution from the huge ice sheets of Greenland and Antarctica, but observations of the ice sheets do not yet allow meaningful quantitative estimates of their separate contributions. The ice sheets remain a major source of uncertainty in accounting for past changes in sea level because of insufficient data about these ice sheets over the last 100 years. Next: Potential climate change impacts Vital Climate Graphics : Observed Climate Trends FAIR USE NOTICE. This document contains copyrighted material whose use has not been specifically authorized by the copyright owner. GeoCrisis is making this article available in our efforts to advance the understanding of environmental justice issues, corporate accountability, human rights, labor rights, social understanding. We believe that this constitutes a 'fair use' of the copyrighted material as provided for in section 107 of the U.S. Copyright Law. If you wish to use this copyrighted material for purposes of your own that go beyond 'fair use,' you must obtain permission from the copyright owner

SEA LEVEL RISE

DUE TO GLOBAL WARMING

HOME PAGE

"You take the blue pill and the story ends. You wake in your bed and you believe whatever you want to believe."

Escape Enter

"You take the red pill and

you stay in Wonderland and I'll show you how deep the rabbit-hole goes."

Store and Support

Vital Climate Graphics : Observed Climate Trends
Next: Potential climate change impacts

17. Over the last 100 years, the global sea level has risen by about 10 to 25 cm.

Sea level change is difficult to measure. Relative sea level changes have been derived mainly from tide-gauge data. In the conventional tide-gauge system, the sea level is measured relative to a land-based tide-gauge benchmark. The major problem is that the land experiences vertical movements (e.g. from isostatic effects, neotectonism, and sedimentation), and these get incorporated into the measurements. However, improved methods of filtering out the effects of long-term vertical land movements, as well as a greater reliance on the longest tide-gauge records for estimating trends, have provided greater confidence that the volume of ocean water has indeed been increasing, causing the sea level to rise within the given range.

It is likely that much of the rise in sea level has been related to the concurrent rise in global temperature over the last 100 years. On this time scale, the warming and the consequent thermal expansion of the oceans may account for about 2-7 cm of the observed sea level rise, while the observed retreat of glaciers and ice caps may account for about 2-5 cm. Other factors are more difficult to quantify. The rate of observed sea level rise suggests that there has been a net positive contribution from the huge ice sheets of Greenland and Antarctica, but observations of the ice sheets do not yet allow meaningful quantitative estimates of their separate contributions. The ice sheets remain a major source of uncertainty in accounting for past changes in sea level because of insufficient data about these ice sheets over the last 100 years.

Next: Potential climate change impacts
Vital Climate Graphics : Observed Climate Trends

FAIR USE NOTICE. This document contains copyrighted material whose use has not been specifically authorized by the copyright owner. GeoCrisis is making this article available in our efforts to advance the understanding of environmental justice issues, corporate accountability, human rights, labor rights, social understanding. We believe that this constitutes a 'fair use' of the copyrighted material as provided for in section 107 of the U.S. Copyright Law. If you wish to use this copyrighted material for purposes of your own that go beyond 'fair use,' you must obtain permission from the copyright owner