Web GIS based applications and systems are becoming popular with the advancement of internet and related technologies and efforts of the open source community. Planners and decision makers are seeking web GIS based solutions as they are efficient at satisfying the needs of users in terms of availability of associated collateral information. The standards and specifications developed by the Open...

Recently, researchers are focusing on a new use of the Internet called the Internet of Things (IoT), in which enabled electronic devices can be remotely accessed over the Internet. As the realization of IoT concept is still in its early stages, manufacturers of Internet-connected devices and IoT web service providers are defining their proprietary protocols based on their targeted applications....

Cities have always been considered a horsepower of industrial growth over centuries. However, urbanization often has environmental effects. In this paper we will focus on one of them, namely air pollution, and how we can integrate 3D city models and air quality sensor data. In most cases, air quality data is acquired from static sensor systems like weather stations, which lack the coverage requ...

A large part of sensor, image, and statistics data in the Earth Sciences naturally come as data points aligned to regular grids of some dimension, including 1-D time series, 2-D imagery, 3-D image time series and volumetric data, and 4-D spatio-temporal data. Frequently repositories have to host objects of multi-Terabyte size, in the future multi-Petabytes. Serving this information category, la...

The distribution of OGC Web Catalogues (CSW) across professional communities, the expert profile of the catalogue user and also the low coverage of OGCWeb Services (OWS) in standard search engines reduce the possibility of discovery and sharing geographic information. This paper presents an approach to simple spatio-temporal search of OWS retrieved from the web by a specialized crawler. The Dig...

Coverage representations, as defined by the OGC specifications, are useful for representing a wide range of geographic phenomena. However, in most GIS projects, coverage representations do not show a common interface and the line between coverages and features with geometry is unclear. We propose an extension to the TerraLib library, using a unifying approach to manage coverage representations,...

Interoperability of Systems and Services is gaining importance, but is mostly limited to a specific domain, e.g. the geospatial or modeling & simulation (M&S) domains. Spatiotemporal Interoperability describes an approach to exploit the synergies of coupling OGC-compliant services and HLA-based simulations in a standardized manner. The paper describes the current status of the Distributed spAti...

Tom Ingold, Boundless Tom Ingold is CTO of Boundless, an open source geographic information system (GIS) company. Tom joined Boundless from Booz Allen, where he was developing OGC services and architectures in the defense and intel markets. Tom has experience in agile systems and building GIS systems in production environments. He has a BA in Natural Sciences from Harvard and a postgrad certifi...

To characterize and monitor environmental quality in real time, significant efforts must be made to make sensors accessible on the Web. Although a number of services have shown great potential to improve the accuracy and reliability of sensor registry, comprehensive methods that register sensors and algorithms in a catalogue service based on a process model are lacking. This paper addresses the...