Casey Station Footprint Measurements, 2002-2018

The footprint mapping used a consistent methodology for digitisation for the years 2002, 2015, and 2018, whereas the year 2008 included ground-truther field measurements. Some variation in the footprint is due to snow cover hiding areas of disturbance.

The sources and date of the data used is as follows: • 2018 Casey Heavy Disturbance – digitised by S. Brooks from Worldview-3 imagery, captured 27/1/2018. • 2018 Casey Medium Disturbance – digitised by S. Brooks from Worldview-3 imagery, captured 27/1/2018. • 2015 Casey Heavy Disturbance – digitised by S. Brooks from AAS 5024 UAV-imagery. • 2015 Casey Medium Disturbance – digitised by S. Brooks from AAS 5024 UAV-imagery. • 2008 Casey Heavy Disturbance – produced from data associated with: Brooks, S.T. 2014.