Statistics New Zealand
Contact person for this case study
|Type of Big Data used|
Mobile phone: call/text times and positions
To monitor short-term population movements during and after a natural disaster. This analysis was prompted by the Canterbury earthquakes of 2010 and 2011. It focuses on population movements within the region, and to other regions. Our analysis and the results presented in the attached report are a step towards understanding the potential of cell phone data while acknowledging a changing information technology environment.
|National or international scope of data source|
|Data access framework|
|Payment for data|
|Domain and use|
Population and migration
All statistical results from our initial investigations are published in the report. The report does not cover access and supply of data.
|Degree of progress in use of the Big Data source|
|Tools and methods for processing|
Statistics NZ undertook this analysis with the cooperation of contributing telecommunication companies, the Ministry of Civil Defence and Emergency Management, and other responding agencies. Patterns of short-term movements over time were derived by observing changes in the percentage of Christchurch cellphones that initiated calls in an area within a 24-hour period and observing new locations of Christchurch cellphones.
|Privacy and confidentiality issues|
|Links and attachments|
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|Name||Last viewed||Times viewed|
|Anonymous||26 Jul, 2014 19:18||764|
|Fiona Willis-Núñez||04 Dec, 2013 11:59||4|
|Juan Munoz-Lopez||13 Nov, 2013 16:32||1|
|Carlo Vaccari||16 Oct, 2013 15:02||1|
|Thérèse Lalor||27 Sep, 2013 04:04||6|