Deterioration data collected from 'Petermann Ice Island-A-1-f' while grounded near Qikiqtarjuaq, Nunavut, 2015 - 2017
A data collection program was carried out between October 2015 and September 2017 to monitor the thinning and overall deterioration of “Petermann Ice Island (PII)-A-1-f”. This large, tabular iceberg was a fragment of the 2012 Petermann Glacier calving event. Four field teams visited the ice island,...
| Main Authors: | , , , |
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| Format: | Dataset |
| Language: | unknown |
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Canadian Cryospheric Information Network
2019
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.21963/13091 https://www.polardata.ca/pdcsearch/?doi_id=13091 |
| Summary: | A data collection program was carried out between October 2015 and September 2017 to monitor the thinning and overall deterioration of “Petermann Ice Island (PII)-A-1-f”. This large, tabular iceberg was a fragment of the 2012 Petermann Glacier calving event. Four field teams visited the ice island, and a stationary ice penetrating radar (sIPR) was installed on PII-A-1-f in October 2015 while the large, tabular iceberg was grounded near Qikiqtarjuaq, NU. The instrument was designed by Blue Systems Integration, Ltd. and was installed during the annual ArcticNet research cruise on board the CCGS Amundsen. It collected the first field dataset of ice island thinning, and along with surface ablation observations, the data were used to calibrate a forced-convection basal ablation model. Mobile IPR data were repeatedly collected over 2.4 km to assess the spatial variation in thinning and assess how well the sIPR measurements represented the conditions elsewhere on the ice island. Auxiliary data included photos, ablation stake measurements, sonic ranger recordings, air temperature measurements, GPS locations, and RADARSAT-2 synthetic aperture radar (SAR) imagery. The latter were collected to monitor the surface areal extent of the ice island. The dataset contains: IPR measurements (.h5), GPS data collected along the mIPR transect (.csv), image files of ablation stakes (.jpg), air temperature data, sonic ranger measurements, and GPS positions of the weather station (.csv), georeferenced Fine-Quad (8 m nominal resolution) RADARSAT-2 SAR images (.tif) and polygon shapefiles delineating the areal extent (.shp). |
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