Analysis of Arctic Buoy Dynamics using the Discrete Fourier Transform and Principal Component Analysis

James H. Hepworth, Amit Kumar Mishra

Research output: Chapter in Book/Report/Conference proceedingConference Proceeding (Non-Journal item)

Abstract

Sea-Ice drift affects various global processes including the air-sea-ice energy system, numerical ocean modelling, and maritime activity in the polar regions. Drift has been investigated via various technologies ranging from satellite based systems to ship or ice-borne processes. This paper analyses the dynamics of sea-drift in the Arctic over 2019-2021 by Fourier Analysis and Principal Component Analysis of displacement data generated from the drift tracks of Ice-Tethered Profilers. We show that the frequency characteristics of drift support the notion that it is a function of both slowly varying processes, and higher frequency, random, forcing. In addition, we show that displacement data features high correlation between deployment locations and, consequently, suggest that there is scope for the optimisation of profiler deployment locations and for the reduction in number of instruments required to capture the displacement characteristics of drift.

Original languageEnglish
Title of host publicationI2MTC 2023 - 2023 IEEE International Instrumentation and Measurement Technology Conference
Subtitle of host publicationRising Above Covid-19, Proceedings
PublisherIEEE Press
Number of pages6
ISBN (Electronic)9781665453837
DOIs
Publication statusPublished - 13 Jul 2023
Externally publishedYes
Event2023 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2023 - Kuala Lumpur, Malaysia
Duration: 22 May 202325 May 2023

Publication series

NameConference Record - IEEE Instrumentation and Measurement Technology Conference
Volume2023-May
ISSN (Print)1091-5281

Conference

Conference2023 IEEE International Instrumentation and Measurement Technology Conference, I2MTC 2023
Country/TerritoryMalaysia
CityKuala Lumpur
Period22 May 202325 May 2023

Keywords

  • Fourier Analysis
  • Ice-Tethered Profilers
  • Principal Component Analysis
  • Sea-Ice Drift

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