Volume 7, Number 2, July 2015 Foreword i-ii Message from the EditorChi-Yin Chow  1 Section 1: Special Issue on Geosensor Networks Introduction to this Special Issue: Geosensor NetworksSilvia Nittel  2 Deployment of a Large-Scale Soil Monitoring Geosensor NetworkGopal K Mulukutl, Brian T. Godbois, and Serita Frey 3-13 Challenges to Using Decentralized Spatial Algorithms in the […]