Organisation terrestris GmbH & Co kg

Topic type		Target Type
New data: handling new data models, for example 3D & temporal data, or big data.		People new to open source geospatial

Additional Presenters
Name	Kwang Woo Nam
Organisation	1Department of Computer and Information Engineering, Kunsan National University
Email	[e-mail]
Name	Hyun Gu Joe
Organisation	1Department of Computer and Information Engineering, Kunsan National University
Email	[e-mail]

ID Number

271

Name	Qing Liu
Organisation	University of Denver
Email	[e-mail]

Paper Title	Storing, Querying, and Mapping Global Collection of Nighttime Light Data with Open Source GIS Software
I can give a practical demo	yes

Paper Abstract (short)

The goal of this project is to store the global collection of nighttime light data products in a queryable raster format in PostgreSQL, to develop a web application for the visualization and seamlessly interactive vector/raster queries on the nighttime light data, and to develop the API for developers to query and retrieve nighttime light data to feed their own applications.

Paper Abstract (long)

Nocturnal lighting is a unique indicator of human activity that can be measured from space. The widespread use of outdoor lighting is a relatively recent phenomenon, tracing its roots back to the electric light bulb commercialized by Thomas Edison in the early 1880s. Since that time nocturnal lighting has emerged as one of the hallmarks of modern development and provides a unique attribute for identifying the presence of development or human activity that can be sensed remotely. Nighttime light imagery as an unusual remote sensing data source offers capabilities to represent human activities on the Earth's surface through the observation of artificial lighting at night. Interest in satellite remote sensing of nocturnal lighting stems, in part, from the difficulty in global mapping of human settlements in a repeatable, timely manner from traditional sources. The remote sensing of nocturnal lighting provides an accurate, economical, and straightforward way to map the global distribution and density of developed areas. The Defense Meteorological Satellite Program (DMSP) was originated in the mid-1960s by the US Department of Defense for collecting worldwide cloud cover on a daily basis. The DMSP program has been repeatedly upgraded over time since it was officially declassified in 1972 and made available to the civilian and scientific community. The latest series incorporated the Operational Linescan System (OLS). Digital OLS data was archived by National Oceanic and Atmospheric AdministrationÕs National Geophysical Data Center (NOAA-NGDC) since 1992. The DMSP-OLS global nighttime lights products have been used as a surrogate for a range of socio-economic indicators including population, Gross Domestic Product (GDP), energy consumption, urban typology, and CO2 emissions. Other sources of nighttime light data include the recently launched Visible Infrared Imaging Radiometer Suite (VIIRS) on Suomi NPP satellite with a Òday/night bandÓ observing dim light sources, and photographs taken by astronaut aboard International Space Station (ISS) providing more detailed nighttime lights information with much higher spatial resolution. NOAA-NGDC has developed a series of procedures to generate global cloud-free composites of DMSP nighttime lights. The DMSP-OLS data products as well as the newly produced VIIRS nighttime light data products have been archived by NGDC and made available for public download from their website. Nighttime light data products can be downloaded in their raw raster format, which can be then processed and analyzed by researchers who possess sufficient knowledge about the data products. However, there is currently no effective interface to browse and analyze nighttime light data for users who are interested in this type of remote sensing data source but do not possess professional remote sensing image processing software packages. The needs and challenges of storing, querying, and mapping a global data collection of nocturnal lighting are significant. PostGIS Raster as the raster support in PostGIS provides the capabilities to operate vector and raster data in a seamless fashion. Following an open source philosophy, this project aims to build an interactive web interface using PostgreSQL + PostGIS, GeoServer and Cartodb in the front-end. Global raster collection of nighttime light data products will be stored in PostgreSQL with PostGIS Raster support. Spatial queries can be conducted seamlessly on the raster data with other vector layers. Statistical summary of nighttime light intensities can be generated through the aggregation of raster values within geographic boundaries at national and sub-national level. The goal is to store the global collection of nighttime light data products in a queryable raster format in PostgreSQL, develop a web application for the visualization and seamlessly interactive vector/raster queries on the nighttime light data, and develop the API for developers to query and retrieve nighttime light data to feed their own applications.

Topic type		Target Type
Case Studies: Relate your experiences. Visualization: effective presentation of information.		People new to open source geospatial End User Technical / Developer Scholars, Researchers

ID Number

228

Name	Paul van Genuchten
Organisation	Geocat bv
Email	[e-mail]

Paper Title	Story of the Map
I can give a practical demo	yes

Paper Abstract (short)

Quite some new map products offer users the possibility to save a map to share, embed or archive. Unfortunately most of them don't use the WMC/OWSContext standard, which makes the maps inoperable. I'll show you some good use of the WMC format in Geonetwork.

Paper Abstract (long)

Last years weÕve seen quite some products offering users the possibility to stack a set of layers and share it with others. Since a wms-layer doesnÕt have a story, until you combine it with other data (and zoom to an extent). Products like Mapstory, Storymap, Geonode, Tilemill and more all offer similar functionality, but each uses itsÕ own proprietary format. This unfortunately prevents the maps to be exchangeable. The use case is there! Consider a map being created in Geonode, save it and open it in QGis. All this happened while an OGC standard has been out there for quite a while, the WMC standard. Soon to be replaced by OWSContext. For sure the standard doesnÕt manage all tiny details in maps, but it offers extension points, where one can insert any custom map and layer attributes. In geonetwork we gladly support the WMC format. In the Geonetwork Mapviewer you are able to create, open and save WMC documents. In near future one can attach a WMC to an iso19139 record to share the map in the catalogue. Users will be able to open the map in the catalogue and even embed it in a website.

Topic type		Target Type
Development: new developments in products. Collaboration: data collection, data sharing, open standards.		Manager Technical / Developer

Additional Presenters
Name	Anton Bakker
Organisation	GeoCat bv
Email	[e-mail]

ID Number

213

Name	Oliver May
Organisation	DFC Software Engineering
Email	[e-mail]

Paper Title	Subsidized school transport for the shortest way to school
I can give a practical demo	yes

Paper Abstract (short)

Presentation of a tailor made project for subsidized school transport using open source technologies and routing

Paper Abstract (long)

This project realizes the automation of the granting of the right to individual and/or collective subsidized transport of students. Applications are initiated by the school by means of a web application. Afterwards these applications are treated automatically and on-the-fly thanks to a routing algorithm (calculation of distance) between the place of residence of the student and the closest school which qualifies for that specific student. Next to this formal application, there is also an interactive tool where the closest schools can be found for potential students in real-time open to the general public. The presentation will show how the application is built using different open source technologies, these technologies include a.o. PostGIS, hibernate-spatial, pgrouting, Geomajas and OSM.

Topic type		Target Type
Case Studies: Relate your experiences.		Manager End User Technical / Developer

ID Number

380

Name	Taro Matsuzawa
Organisation	Georepublic Japan
Email	[e-mail]

Paper Title	SVG Map - Tile Map without Javascript
I can give a practical demo	yes

Paper Abstract (short)

SVG Map implements specific elements and attributes, that enable internet browsers to display map tiles directly through the browser's layout engine, supporting dynamic tiling and layering.

Paper Abstract (long)

In this presentation we will show how the SVG Map technology can display a tiled map without Javascript. Many popular internet tile maps such as OpenStreetMap, Google Maps, etc. use Javascript to provide tiling and layering. But this can cause high load especially on mobile platforms. SVG Map instead implements specific elements and attributes, that enable internet browsers to display map tiles directly through the browser's layout engine, with support for dynamic tiling and layering. The core mechanism of this tile map is the ÒSVG iframeÓ element. Depending on zoom level, map layer and viewport the relevant map data is downloaded using media queries. The ÒglobalCoordinateSystemÓ element allows to define the geographic coordinate system and to describe transformation rules. SVG Map will make it possible to display maps in the browser with SVG files alone, and it will allow to style maps with CSS. While a first prototype has been is developed using Javascript, development has started on implementations for Webkit browser and a Firefox add-on. Because Firefox OS doesn't support add-ons, the native implementation in Firefox browser is also planned. The final aim is to make SVG Map a W3C standard, and discussion has already started in the SVG Working Group at W3C.

Topic type		Target Type
Development: new developments in products.		Technical / Developer

Additional Presenters
Name	Ko Nagase
Organisation	Georepublic Japan
Email	[e-mail]

ID Number

124

Name	JosŽ Luis Capote Fern‡ndez
Organisation	GeoCuba
Email	[e-mail]

Paper Title	Table Joining Service implementation using Geoserver platform
I can give a practical demo	yes

Paper Abstract (short)

This article describes the implementation of the specification for Table Joining Service Service (TJS) of OGC as an extension to the GeoServer platform.

Paper Abstract (long)

GeoServer is an open source server developed in Java that allows the users to share and edit geospatial information. Designed for the interoperability, publishes information of any spatial information source using open standards. GeoServer constitutes the OGC Reference implementation for the Web Feature Service standard (WFS). The license model used by GeoServer as well as their architecture allows the extension development using their platform as support. In this way some components can be re-used like the security; the definition and implementation of OGC OWS, and validated implementations of WFS, WCS, WMS and others. This article describes the implementation of the specification for Table Joining Service Service (TJS) of OGC as an extension to the GeoServer platform. This OGC standard defines a simple way to describe and to exchange information stored in data sources not spatial that contains information related to geographical objects.

Topic type		Target Type
Case Studies: Relate your experiences. Business Cases: building the economic case. Development: new developments in products. Hacks and Mashes: novel solutions to our problems.		People new to open source geospatial Manager End User Technical / Developer

Additional Presenters
Name	Rafael Cruz Iglesias
Organisation	GEOCUBA
Email	[e-mail]
Name	Guillermo Gonz‡lez Su‡rez
Organisation	GEOCUBA
Email	[e-mail]