Articles | Volume 8, issue 4
https://doi.org/10.5194/amt-8-1673-2015
https://doi.org/10.5194/amt-8-1673-2015
Research article
 | 
08 Apr 2015
Research article |  | 08 Apr 2015

Techniques for analyses of trends in GRUAN data

G. E. Bodeker and S. Kremser

Download

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
Download
Short summary
This paper discusses, and demonstrates, the methodology for reliably determining long-term trends in upper air climate data records and how measurement uncertainties should be used in trend analyses. A pedagogical approach is taken whereby numerical recipes for key parts of the trend analysis process are explored. The paper describes the construction of linear least squares regression models for trend analysis and the boot-strapping approach to determine the uncertainty on the derived trends.