skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


  • Home
  • Search Results
  • Page 1 of 1

Search for: All records

Creators/Authors contains: "Heyman, M"

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; ; (, Statistics and applications)
    Tree growth rings contain yearly information about climate, extreme weather events, and other growing conditions. In this analysis, we model the relationship strength between tree-ring records with respect to location and time. We employ the discrete wavelet trans- formation on the ring width records in order to de-correlate the observations within each series while simultaneously retrieving time-scale information. Our model then describes correlations among the resulting wavelet coefficients at different temporal scales by distance. Statistical inference through a new version of the wild bootstrap indicates that the relation- ship strength decreases linearly as record pair distance increases, but the slopes differ across temporal scales. 
    more » « less
    Accepted Manuscript Full Text Available