Integral correlation for uneven and differently sampled data, and its application to the Law Dome Antarctic climate record

• Published in: Scientific Reports
• Main Authors: Roberts, JL, Jong, LM, McCormack, FS, Curran, MA, Moy, AD, Etheridge, DM, Greenbaum, JS, Young, DA, Phipps, SJ, Xue, W, van Ommen, TD, Blankenship, DD, Siegert, MJ
• Format: Article in Journal/Newspaper
• Language: English
• Published: Nature Publishing Group 2020
• Subjects: integral correlation; uneven data sets; glaciological; ice cores; Law Dome; ice-penetrating radar; Antarctic; Antarc*; ice core; Ice Sheet
• Online Access: https://eprints.utas.edu.au/35317/; https://eprints.utas.edu.au/35317/1/141361%20-%20Integral%20correlation%20for%20uneven%20and%20differently%20sampled%20data,%20and%20its%20application.pdf

We present a new simple and efficient method for correlation of unevenly and differently sampled data. This new method overcomes problems with other methods for correlation with non-uniform sampling and is an easy modification to existing correlation based codes. To demonstrate the usefulness of this new method to real-world examples, we apply the method with good success to two glaciological examples to map the ages from a well-dated ice core to a nearby core, and by tracing isochronous layers within the ice sheet measured from ice-penetrating radar between the two ice core sites.