Many special issues of the Journal of Geographic Information System will be published soon.
A call for papers is opened for the following special issues:
GIS Spatial Data Sharing: Deadline May 31st, 2018
Geographic Information Visualization: Deadline February 27th, 2018
Integration of Remote Sensing and GIS: Deadline February 28th, 2018
Geographic Information Retrieval: Deadline May 16th, 2018
More information at: Special issues of JGIS.