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Seasonal timeline for snow-covered sea ice processes in Nunavik's Deception Bay from TerraSAR-X and time-lapse photography

Dufour-Beauséjour, Sophie and Wendleder, Anna and Gauthier, Yves and Bernier, Monique and Poulin, Jimmy and Gilbert, Veronique and Tuniq, Juupi and Rouleau, Amélie and Roth, Achim (2020) Seasonal timeline for snow-covered sea ice processes in Nunavik's Deception Bay from TerraSAR-X and time-lapse photography. The Cryosphere, 14, pp. 1595-1609. Copernicus Publications. DOI: 10.5194/tc-14-1595-2020 ISSN 1994-0416

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Official URL: https://www.the-cryosphere.net/14/1595/2020/tc-14-1595-2020.html

Abstract

Inuit have reported greater inter-annual variability in seasonal sea ice conditions. For Deception Bay (Nunavik), an area prized for seal and caribou hunting, an increase in solid precipitation and a shorter snow cover period is expected in the near future. In this context, and considering ice-breaking transport in the fjord by mining companies, we monitored sea ice in the area for three seasons of ice between 2015 and 2018. This article presents a case study for the combined use of TerraSAR- X and time-lapse photography time-series in order to monitor snow-covered sea ice seasonal processes. The X-band median backscattering is shown to reproduce the seasonal evolution expected from C-band data. Two different freeze-up and breakup processes are characterized. New X-band backscattering values from newly formed ice types are reported. The monitoring approach presented in this article has the potential to be applied in other remote locations, and processes outlined here may inform our understanding of other fjords or bays where ice-breakers transit.

Item URL in elib:https://elib.dlr.de/130012/
Document Type:Article
Title:Seasonal timeline for snow-covered sea ice processes in Nunavik's Deception Bay from TerraSAR-X and time-lapse photography
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Dufour-Beauséjour, SophieSophie.Dufour-Beausejour (at) ete.inrs.caUNSPECIFIED
Wendleder, AnnaAnna.Wendleder (at) dlr.deUNSPECIFIED
Gauthier, YvesUNSPECIFIEDUNSPECIFIED
Bernier, MoniqueUNSPECIFIEDUNSPECIFIED
Poulin, JimmyUNSPECIFIEDUNSPECIFIED
Gilbert, VeroniqueUNSPECIFIEDUNSPECIFIED
Tuniq, JuupiUNSPECIFIEDUNSPECIFIED
Rouleau, AmélieUNSPECIFIEDUNSPECIFIED
Roth, AchimAchim.Roth (at) dlr.deUNSPECIFIED
Date:26 May 2020
Journal or Publication Title:The Cryosphere
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:14
DOI :10.5194/tc-14-1595-2020
Page Range:pp. 1595-1609
Publisher:Copernicus Publications
ISSN:1994-0416
Status:Published
Keywords:sea ice, freeze-up, Radar backscatter, melt onset, TerraSAR-X, lime-lapse photography, temperature
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Remote sensing and geoscience
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Land Surface Dynamics
Deposited By: Wendleder, Anna
Deposited On:02 Dec 2019 11:18
Last Modified:18 Jun 2020 14:38

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