Deterioration Data Collected from 'Petermann Ice Island-A-1-f' While Grounded Near Qikiqtarjuaq, Nunavut, 2015 - 2017

There are limited field observations of the deterioration of ice islands (large, tabular icebergs) due to the difficult nature of data collection. A comprehensive monitoring program was carried out between October 2015 and September 2017 to monitor the deterioration of 'Petermann Ice Island(PII)-A-1-f'. The ice island was grounded near Qikiqtarjuaq, NU, over the monitoring period. Stationary and mobile ice penetrating radar data were collected to analyze the respective temporal and spatial variation ice island thinning. Auxillary data were collected to analyze surface and basal ablation, calibrate a popular iceberg basal ablation model, and monitor the surface areal extent of the ice island to determine the relative contributions of different processes to the overall deterioration of an ice island. These data can also be used for surface ablation model validation and 3D deterioration modelling efforts. The following manuscript, which utilized this dataset, is in preparation: Crawford, A.J., Mueller, D.R., Crocker, G., Mingo, L., Desjardins, L,. Dumond, D., Babin, M. Ice island thinning: Rates and model calibration with in situ observations from Baffin Bay, Nunavut. The Cryosphere. In preparation.