Submitted on: 27 May 2015.
Revised on: 18 September 2015.
Accepted on: 13 October 2015.
___________________International Journal of Digital Earth
Submitted on: 03 August 2015.
Revised on: 27 October 2015.
Accepted on: 17 November 2015.
___________________International Journal of Digital Earth
Submitted on: 27 August 2009.
Revised on: 30 September 2009.
Accepted on: 17 October 2009.
___________________International Journal of Digital Earth
Submitted on: 09 March 2017.
Revised on: 07 April 2017.
Accepted on: 27 May 2017.
___________________International Journal of Digital Earth
Submitted on: 03 March 2012.
Revised on: 24 April 2012.
Accepted on: 11 June 2012.
___________________International Journal of Digital Earth
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