Question about pollen graph


by Mk
Tags: graph, pollen
Mk
Mk is offline
#1
Mar3-06, 05:06 AM
P: 2,057
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?
Phys.Org News Partner Earth sciences news on Phys.org
Andre
Andre is offline
#2
Mar3-06, 02:16 PM
PF Gold
Andre's Avatar
P: 5,450
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.
Mk
Mk is offline
#3
Mar3-06, 07:59 PM
P: 2,057

Here it is.


Register to reply

Related Discussions
Need Help with Graph Question Introductory Physics Homework 9
Real life situation to a sin graph on position by time graph Differential Equations 6
A question about graph algorithm General Math 7
temperature graph question General Physics 0
Need with 3d graph question Introductory Physics Homework 3