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Question about pollen graph 
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#1
Mar306, 05:06 AM

P: 2,056

http://www.ncdc.noaa.gov/paleo/polle...webviewer.html
I just found this totally rad thing right here, pollen viewer. It shows plant populations from 21,000 BC to present. But what are the units for the models shown? 


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#2
Mar306, 02:16 PM

PF Gold
P: 5,458

Can't see the link So I'm not sure what exactly you want to know. Pollen diagrams like this one (Lucke and Brauer 2004 Meerfelder Maar in the Younger Dryas) show the pollen count per cubic centimeter. You see filled black graphs and open white, that's a difference in order of magnitude. This specific one is extremely interesting. I have to write the others sometimes that their dating is 34 years off. The correction would bring their transition to the Younger Dryas to 11,654 years ago, whereas the transitition in the GISP ice core is 11,652 years. Unfortunately the error margin (+29 26 years) spoils the apparant accuracy.



#3
Mar306, 07:59 PM

P: 2,056

Here it is. 


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