The International Journal of Digital Earth (IJDE) is one of the academic journals of the International Society for Digital Earth, which is sponsored by the Institute of Remote Sensing and Digital Earth, CAS, and jointly published by Taylor & Francis Group. IJDE was launched in March 2008, and accepted for coverage in the Science Citation Index Expanded (SCI-E) in August 2009, and received its first impact factor 0.864 for the year of 2009. The current impact factor of IJDE is 3.097.