Land Ice Monitoring via GRACE and Satellite Altimetry in the Canadian Arctic Archipelago ...
The Canadian Arctic Archipelago (CAA) was remarked as the third most significant contributor to the global sea level rise between 2003 and 2009, containing one third of the world’s freshwater as land ice (Gardner et al., 2011). Continuous monitoring of the long-term mass variability of the CAA is es...
| Published in: | Polar Record |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Graduate Studies
2017
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.11575/prism/26718 https://prism.ucalgary.ca/handle/11023/4222 |
| Summary: | The Canadian Arctic Archipelago (CAA) was remarked as the third most significant contributor to the global sea level rise between 2003 and 2009, containing one third of the world’s freshwater as land ice (Gardner et al., 2011). Continuous monitoring of the long-term mass variability of the CAA is essential knowledge for gaining insight about their forthcoming impact due to climate change. The scope of this thesis is to determine independent mass balance estimates from GRACE gravity and ICESat laser altimetry data for both the Northern and the Southern Canadian Arctic (NCA; SCA), compare both estimates and assess them with respect to previous studies, while discussing the reasons of the potential discrepancies existing. GRACE data are available as spherical harmonic coefficients (Level-2) express the gravity field and they are expanded up to a certain degree and order. This hampers the recovery of regional scale mass anomalies, which need knowledge of higher spatial detail. The proposed approach reconstructs ... |
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