Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Question about pollen graph

  1. Mar 3, 2006 #1

    Mk

    User Avatar

    http://www.ncdc.noaa.gov/paleo/pollen/viewer/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?
     
  2. jcsd
  3. Mar 3, 2006 #2
    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.
     
  4. Mar 3, 2006 #3

    Mk

    User Avatar

    [​IMG]
    Here it is.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Similar Discussions: Question about pollen graph
  1. Questions about (Replies: 1)

Loading...