Sébastien Caquard

Bio: Sébastien Caquard is an academic researcher from Concordia University. The author has contributed to research in topics: Narrative & Pictorial maps. The author has an hindex of 16, co-authored 45 publications receiving 870 citations. Previous affiliations of Sébastien Caquard include Carleton University & Concordia University Wisconsin.

Cartography I Mapping narrative cartography

Abstract: This report focuses on the growing interest in the relationship between maps, narratives and meta-narratives. Following a brief historical contextualization of these relationships, this report explores their current state in the Geoweb era. Using the distinction between story maps and grid maps as an analytical framework, I review emerging issues around the extensive use of technologies and online mapping services (i.e. Google maps) to convey stories and to produce new ones. Drawing on literature in film studies, literary studies, visual arts, computer science and communication I also emphasize the emergence of new forms of spatial expressions interested in providing different perspectives about places and about stories associated to places. In sum, I argue that mapping both vernacular knowledge and fiction is central understanding places in depth.

Narrative Cartography: From Mapping Stories to the Narrative of Maps and Mapping

Abstract: This paper provides an overview of the multiple ways of envisioning the relationships between maps and narratives. This is approached from a map making perspective. Throughout the process of editing this special issue, we have identified two main types of relationships. Firstly, maps have been used to represent the spatio-temporal structures of stories and their relationships with places. Oral, written and audio-visual stories have been mapped extensively. They raise some common cartographic challenges, such as improving the spatial expression of time, emotions, ambiguity, connotation, as well as the mixing of personal and global scales, real and fictional places, dream and reality, joy and pain. Secondly, the potential of maps as narratives and the importance of connecting the map with the complete mapping process through narratives is addressed. Although the potential of maps to tell stories has already been widely acknowledged, we emphasize the increasing recognition of the importance of develo...

Flood warnings, flood disaster assessments, and flood hazard reduction: the roles of orbital remote sensing

Abstract: Orbital remote sensing of the Earth is now poised to make three fundamental contributions towards reducing the detrimental effects of extreme floods. Effective Flood warning requires frequent radar observation of the Earth's surface through cloud cover. In contrast, both optical and radar wavelengths will increasingly be used for disaster assessment and hazard reduction.

Cybercartography: Maps and Mapping in the Information Era

Abstract: The world of maps and mapping is rapidly being transformed. Recent technological developments have brought maps into the daily life of societies all over the world in unprecedented ways. Maps are everywhere: on our cell phones, in newspapers, in art galleries, on television, in books, and, obviously, on our computer screens. According to Michael Peterson (2005), maps are now second only to weather information in the number of World Wide Web search requests. This widespread use of on-line mapping has attracted the interest of large corporations such as Google, Yahoo, and Microsoft. Recently, the almost instantaneous success of Google Map, Google Earth, and Microsoft Digital Earth (Goodchild 2005) has demonstrated the increasing presence of maps in our daily life. This success is also transforming the way we access, use, and interact with maps. User-friendly technologies and high-resolution images now allow users to create maps that respond to individualized demands.

Cartography III A post-representational perspective on cognitive cartography

Abstract: In this third report, I focus on cognitive cartography in order to examine how the historical division between empiricist and critical approaches in cartography has shifted recently. I do so by bui...

Cognitive and Usability Issues in Geovisualization

Abstract: We provide a research agenda for the International Cartographic Association's Commission on Visualization and Virtual Environment Working Group on Cognitive and Usability Issues in Geovisualization. Developments in hardware and software have led to (and will continue to stimulate) numerous novel methods for visualizing geospatial data. It is our belief that these novel methods will be of little use if they are not developed within a theoretical cognitive framework and iteratively tested using usability engineering principles. We argue that cognitive and usability issues should be considered in the context of six major research themes: 1) geospatial virtual environments (GeoVEs); 2) dynamic representations (including animated and interactive maps); 3) metaphors and schemata in user interface design; 4) individual and group differences; 5) collaborative geovisualization; and 6) evaluating the effectiveness of geovisualization methods. A key point underlying our use of theoretical cognitive principles is tha...

A framework for global river flood risk assessments

Abstract: . There is an increasing need for strategic global assessments of flood risks in current and future conditions. In this paper, we propose a framework for global flood risk assessment for river floods, which can be applied in current conditions, as well as in future conditions due to climate and socio-economic changes. The framework's goal is to establish flood hazard and impact estimates at a high enough resolution to allow for their combination into a risk estimate, which can be used for strategic global flood risk assessments. The framework estimates hazard at a resolution of ~ 1 km2 using global forcing datasets of the current (or in scenario mode, future) climate, a global hydrological model, a global flood-routing model, and more importantly, an inundation downscaling routine. The second component of the framework combines hazard with flood impact models at the same resolution (e.g. damage, affected GDP, and affected population) to establish indicators for flood risk (e.g. annual expected damage, affected GDP, and affected population). The framework has been applied using the global hydrological model PCR-GLOBWB, which includes an optional global flood routing model DynRout, combined with scenarios from the Integrated Model to Assess the Global Environment (IMAGE). We performed downscaling of the hazard probability distributions to 1 km2 resolution with a new downscaling algorithm, applied on Bangladesh as a first case study application area. We demonstrate the risk assessment approach in Bangladesh based on GDP per capita data, population, and land use maps for 2010 and 2050. Validation of the hazard estimates has been performed using the Dartmouth Flood Observatory database. This was done by comparing a high return period flood with the maximum observed extent, as well as by comparing a time series of a single event with Dartmouth imagery of the event. Validation of modelled damage estimates was performed using observed damage estimates from the EM-DAT database and World Bank sources. We discuss and show sensitivities of the estimated risks with regard to the use of different climate input sets, decisions made in the downscaling algorithm, and different approaches to establish impact models.

Cartography: maps 2.0

Abstract: At 11.35 am PDT on 18 September 2007 at Vandenberg Air Force base in California, DigitalGlobe’s new WorldView-1 satellite launched into orbit. The satellite is capable of collecting imagery over as much as three-quarters of a million square kilometers a day in resolution as fi ne as 0.5 m. A second satellite will be launched in 2008, capable of photographing nearly a million square kilometers daily at the same high resolution. The data are twice the resolution of the pre-vious industry leader, the IKONOS satellite launched in 1999 and close to the military’s own resolution of 10 cm (Monmonier, 2002).What is significant about the launch is not only the extent and resolution of the imagery (which from all vendors now covers over half of the world’s population) but also the fact that this imagery will be available commercially (look for it in Google Earth). Such imagery, alongside the tremendous possibilities of ‘crowdsourced’ geospatial data, represent interesting new develop-ments in cartography.In the fi rst of three reviews assessing the current state of cartography, I focus on the explosion of new ‘spatial media’ on the web. This topic goes under a bewildering number of names including the geospatial web or geoweb (Scharl and Tochtermann, 2007), neogeography (Turner, 2006), locative media (Rheingold, 2002), DigiPlace (Zook and Graham, 2007a), spatial crowdsourcing or geocollaboration (Hopfer and MacEachren, 2007) and map hacking (Erle

Geographic information science: emerging research on the societal implications of the geospatial web:

Abstract: This review examines emerging research on the geoweb, particularly recent efforts to assess the social, political and disciplinary shifts associated with it. The rise of the geoweb is associated with shifts in the processes and power relations of spatial data creation and use, reconfi gurations in previously bounded disciplinary knowledge sets, and shifts in the subjectivities and social relations that are produced through the geoweb's technologies, data, and practices. This early research on the societal implications of the geoweb is drawing productively upon conceptual frameworks from critical GIS, public participation GIS, and spatial data infrastructure research, but must also theorize beyond these existing bodies of work.