Only occur at high latudes only represent ocean

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: climate rarchives Tree ings What makes these good climate archives? hYp://www.oceanleadership.org / Ice cores hYp://dendrodan.wordpress.com/category/tree- rings/ hYp://www.sciencedaily.com/ Ideal characteris@cs of climate archives •  •  •  •  •  •  Con@nuous deposi@on (layers) Temporally extensive High temporal resolu@on Precisely datable Complement exis@ng archives Preserves a proxy that reflects climate Proxy •  Proxy – something that acts as a subs@tute for another What does tree ring width Late growth reflect? Early growth Tree rings •  Temperature •  Rainfall •  Length of growing season •  Drought Index Tree ring with correlated to drought index (PDSI) during instrumental record Used rela@onship (func@on) between tree ring width and modern drought index to reconstruct drought when no record existed This drought is worse Water management plans for...
View Full Document

This note was uploaded on 04/01/2013 for the course EVS 311 taught by Professor Hersch during the Spring '13 term at University of Texas at Austin.

Ask a homework question - tutors are online