A Study on Coastline Extraction and Its Trend Based on Remote Sensing Image Data Mining

Table 4

China’s coastline length prediction table.

Year	Coastline length (m)	Prediction length (m)	Residual (m)	Relative error
2007	18,501,296	18,501,296
2008	18,515,830	18,549,380	−33550.33	0.00
2009	18,599,902	18,678,455	−78552.97	0.00
2010	18,644,768	18,808,427	−163659.73	0.01
2011	18,946,699	18,939,304	7394.30	0.00
2012		18,501,296
2013		113,250,456
2014		19,337,425
2015		19,471,983