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Quantification of Ikaite

Expected field work start date
10 Apr 2015
Expected field work end date
03 May 2015
Organisation
University of Manitoba
Department

Centre for Earth Observation Science

Address
535 Wallace Building University of Manitoba
Zip code
R3T 2N2
City
Winnipeg
Country
Canada
Project category
Research
Type of project
Research
Project theme
Sea ice
Project topic
Chemistry
Climate research
Geomicrobiology
Sea ice
Fieldwork country
Greenland
Fieldwork region
North-East Greenland

jesper_hoffmann_01.jpg

Heather Kyle and Yubin Hu taking a temperature profile of a first year ice core.

Ikaite (CaCO3•6H2O) is a mineral that occurs naturally in Arctic and Antarctic sea ice. However, the spatial and temporal dynamics are poorly understood. To improve our understanding of the dynamics of ikaite in sea ice, we are developing a method to quantify ikaite in sea ice using dissolved inorganic concentration (DIC). In the field, ice cores will be collected from a variety of settings, including first year ice with low snow cover, first year ice with high snow cover, and multi-year ice. Ikaite will be quantified from these ice cores using two methods: image analysis and DIC analysis. To complete the DIC analysis, ice cores will be melted at 0ºC, the solution will be filtered, and the filtered crystals will be placed in an exetainer filled with deionized water. DIC analysis will be carried out on the filtered crystals to determine ikaite concentration. The results from both techniques will be compared to determine if the DIC method is an effective technique to quantify ikaite in sea ice.

Read more at the ASP website

Last updated
23 Jun 2017