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This book constitutes the thoroughly refereed proceedings of the Third International Conference on Geographical Information Theory, Application and Management, GISTAM 2017, held in Porto, Portugal, in April 2017.
The 11 full papers presented were carefully reviewed and selected from 70 submissions. The papers are centered around photogrammetry, spatio-temporal data acquisition, spectroscopy and spectroradiometry, hyperspectral imaging, Earth observation and satellite data, computational geometry, web applications, geographic information retrieval, urban and regional planning.

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GIS Systems on the Pipelines Thermographic Aerial Inspection.- Sentinel-1 for Object-based Delineation of Built-up Land within Urban Areas.- Improvement of Database Updating: Semi-automatic Urban Detection.- Implications of Data Density and Length of Collection Period for Population Estimations using Social Media Data.- Bootstrapping the Dynamic Generation of Indoor Maps with Crowdsourced Smartphone Sensor Data.- Soft Image Segmentation: On the Clustering of Irregular, Weighted, Multivariate Marked Networks.- Goal-Oriented Analysis and Design of Land Administration Systems.- Data Acquisition and Mapping for Geohazard Analysis.- Optimal Evacuation Routing Using LiDAR-based Flood Models.- Promoting Citizens´ Quality of Life through Green Urban Planning.- Developing a Responsive Web Platform for the Systematic Monitoring of Coastal Structures.

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