The Uncertainties of Global Warming: Sea Level Could Rise in South, Fall in North - SPIEGEL ONLINE - News - International
Climate change is expected to cause sea levels to rise -- at least in some parts of the world. Elsewhere, the level of the ocean will actually fall. Scientists are trying to get a better picture of the complex phenomenon, which also depends on a host of natural factors.
Posts
1 comment:
The sea level currently rises by about 3 millimeters (0.1 inches) a year on average.
[...]
For a long time, scientists didn't even have precise data on specific water levels in individual locations around the planet. That changed in late December 1992, when a satellite was placed into service that uses a radar altimeter to measure the sea level, to within a few centimeters , anywhere in the oceans. "In the past, we had to travel around the ocean and painstakingly take measurements," says Stammer. "Today I can go on the Internet and download the satellite data from space onto my computer."
-------------------
How do they determine 3.0mm rise per year when they state the altimeter is only accurate within a few centimeters?
Post a Comment