Photo Credits:
Thomas.G. Andrews
NOAA Paleoclimatology Program
Download a zip file
of a full resolution TIF image
| Paleo Slide Set: Coral Paleoclimatology |
| Long Delta 18O record from Urvina Bay, Galapagos. | |
| The last figure demonstrated
the accuracy of coral d18O
as a proxy measurement of sea
surface temperatures. d18O
can also serve as a proxy measurement for precipitation, particularly in
areas like the central Pacific where large ENSO-related oscillations in
annual rainfall occur. Now that scientists have established the reliability
of coral d18O
as a proxy signal, they are beginning to take deeper cores that provide
increasingly long climatic records. Think of coral d18O
as a paleothermometer that enables us to answer important questions about
climatic variability in the world's oceans. This core from the Galapagos
Islands gives us a 350-year record of sea surface temperatures and, by extension,
El Niño activity in the eastern Pacific. Photo Credits: Thomas.G. Andrews NOAA Paleoclimatology Program |
Download a zip file
|
|
|||
|
Back to Slide Sets.....
Contact Us
|
Paleoclimatology Program Home Page |