The Normalized Difference Water Index (NDWI) is derived using similar principles to the Normalized Difference Vegetation Index (NDVI) to enhance the spectral reflectance of surface water bodies…

Valuation of real estate/ properties is in many countries/ cities the basis for fair taxation. The property value depends on many aspects, including the physical real world aspects (geometries, material of object as build) and legal/ virtual aspects (rights, restrictions, responsibilities, zoning/development plans applicable to the objects spaces). The aim of this study is to investigate the opportunities provided by the semantically rich 3D building and cadastral models for valuation and taxation. In this paper we investigate the following related aspects…

The most basic operation of a vessel monitoring system is to determine the location of the vessel at a given time, and periodically send this information, usually by satellite, to a monitoring station ashore. Most of vessels are tracked using the purple finder. This finder uses various satellites like Inmarsat, Globalstar and Thuraya for tracking the vessel. INMARSAT-C has been the most considered choice, since INMARSAT transceiver is already fitted onboard many ocean-going vessels as required by GMDSS (Global Maritime Distress and safety System).

This paper introduces a new framework to utilise Volunteered Geographic Service (VGS) for identifying and distributing potential help requests as volunteered services in an automatic and proactive way among potential volunteers in situ right after a disaster

Arash Kaviani

Research Associate, Centre for SDIs and Land, Administration (CSDILA), Department of Infrastructure Engineering, The University of Melbourne, Australia

Professor …

I have read the paper by Hannah (this volume), and I arrive at a totally the opposite conclusions, viz. that there is no indication what so ever of a recent sea level acceleration, and that it is the high rates around 3 mm/yr that should be “safely disregarded”.

In 2012, the United Nations Environment Programme issued its report on the most important emerging issues related to the global environment (UNEP, 2012). The top ranked issue in that report related to the alignment of land governance to the challenges of global sustainability.

European Geostationary Navigation Overlay Service (EGNOS), the European Satellite Based Augmentation System (SBAS), provides corrections and integrity information to GPS signals over a broad area centred over Europe, and is fully interoperable with other existing SBAS systems (e.g., WAAS, the brand name of the American SBAS).

Turkey, in the 1980s communications satellites were purchased. In 1989, a tender was floated for the first communications satellite project. Following this development, the French Aerospatiale company on December 21, 1990 signed the ‘Turkish National Satellite Communication System Agreement’ with Turkey…

UAVs (Unmanned Aerial Vehicles), or as most civil aviation authorities now call them, UASs (for Unmanned Aircraft Systems), are attracting a lot of attention lately from geospatial professionals…

The paper aims to validate the use of Global Navigation Satellite System (GNSS) signals prior to the occurrence of earthquakes as a means of earthquake prediction, by referring to the Great East Japan Earthquake (hereafter called the Great Earthquake). The Great Earthquake occurred….