Multi-decadal analysis of sea ice type, extent and distribution patterns in Tuvaijuittuq and adjacent regions / by Monika Pućko, Jarod Larter, and Christine Michel.: Fs97-18/352E-PDF

"Tuvaijuittuq area and adjacent regions hold the oldest and thickest sea ice in the Arctic, however, information on spatio-temporal sea ice composition and distribution patterns as well as their inter-annual variability are missing. Here, we present First-Year Ice (FYI) versus Multiyear Ice (MYI) composition and areal extent data within three analysis areas, A1, A2, and A3, delineated north of the Queen Elizabeth Islands (QEI), on maximum and minimum ice extent dates between 1999 and 2018, based on the Canadian Ice Service (CIS) weekly ice charts. We further show maximum extent of open water for each of these years, and the date on which it was recorded. We also present distribution maps of FYI, MYI and open water on maximum and minimum ice extent dates in all three analysis regions between 1999 and 2018. To better represent relative occurrence of FYI and MYI, frequency of occurrence maps on maximum and minimum ice extent dates are presented for MYI and FYI in all three analysis areas. Finally, maps of frequency of occurrence of open water are created to uncover regions of relative prevalence of open water in A1, A2, and A3. Spatio-temporal analysis of sea ice composition and distribution patterns in the Tuvaijuittuq Marine Protected Area (MPA) and adjacent regions presented herein can inform the decision-making process should permanent protection be established and provide fundamental contextual data for future management and monitoring of this area"--Abstract, page x.

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