Max Craglia

Next-generation Digital Earth

A speech of then-Vice President Al Gore in 1998 created a vision for a Digital Earth, and played a role in stimulating the development of a first generation of virtual globes, typified by Google Earth, that achieved many but not all the elements of this vision. The technical achievements of Google Earth, and the functionality of this first generation of virtual globes, are reviewed against the Gore vision. Meanwhile, developments in technology continue, the era of “big data” has arrived, the general public is more and more engaged with technology through citizen science and crowd-sourcing, and advances have been made in our scientific understanding of the Earth system. However, although Google Earth stimulated progress in communicating the results of science, there continue to be substantial barriers in the public’s access to science. All these factors prompt a reexamination of the initial vision of Digital Earth, and a discussion of the major elements that should be part of a next generation.

Digital Earth 2020: towards the vision for the next decade

Abstract This position paper is the outcome of a brainstorming workshop organised by the International Society for Digital Earth (ISDE) in Beijing in March 2011. It argues that the vision of Digital Earth (DE) put forward by Vice-President Al Gore 13 years ago needs to be re-evaluated in the light of the many developments in the fields of information technology, data infrastructures and earth observation that have taken place since. The paper identifies the main policy, scientific and societal drivers for the development of DE and illustrates the multi-faceted nature of a new vision of DE grounding it with a few examples of potential applications. Because no single organisation can on its own develop all the aspects of DE, it is essential to develop a series of collaborations at the global level to turn the vision outlined in this paper into reality.

Digital Earth from vision to practice: making sense of citizen-generated content

Abstract The vision of Digital Earth (DE) put recently forward under the auspices of the International Society for DE extends the paradigm of spatial data infrastructures by advocating an interactive and dynamic framework based on near-to-real time information from sensors and citizens. This paper contributes to developing that vision and reports the results of a two-year research project exploring the extent to which it is possible to extract information useful for policy and science from the large volumes of messages and photos being posted daily through social networks. Given the noted concerns about the quality of such data in relation to that provided by authoritative sources, the research has developed a semi-automatic workflow to assess the fitness for purpose of data extracted from Twitter and Flickr, and compared them to that coming from official sources, using forest fires as a case study. The findings indicate that we were able to detect accurately six of eight major fires in France in the summer of 2011, with another four detected by the social networks but not reported by our official source, the European Forest Fire Information Service. These findings and the lessons learned in handling the very large volumes of unstructured data in multiple languages discussed in this study provide useful insights into the value of social network data for policy and science, and contribute to advancing the vision of DE.

A European Perspective on Digital Earth

Abstract The purpose of this paper is to contribute to the definition of a European perspective on Digital Earth (DE), identify some actions that can contribute to raise the awareness of DE in the European context and thus strengthen the European contribution to the International Society for Digital Earth (ISDE). The paper identifies opportunities and synergies with the current policy priorities in Europe (Europe 2020, Innovation Union and Digital Agenda) and highlights a number of key areas to advance the development of DE from a European perspective: (1) integrating scientific research into DE; (2) exploiting the Observation Web with human-centred sensing; and (3) governance, including the establishment of stronger linkages across the European landscape of funding streams and initiatives. The paper is offered also as a contribution to the development of this new vision of DE to be presented at the next International DE Conference in Perth, Australia, in August 2011. The global recognition of this new vision will then reinforce the European component and build a positive feedback loop for the further implementation of DE across the globe.

Data Democracy - increased supply of geospatial information and expanded participatory processes in the production of data

The global landscape in the supply, co-creation and use of geospatial data is changing very rapidly with new satellites, sensors and mobile devices reconfiguring the traditional lines of demand and supply and the number of actors involved. In this paper we chart some of these technology-led developments and then focus on the opportunities they have created for the increased participation of the public in generating and contributing information for a wide range of uses, scientific and non. Not all this information is open or geospatial, but sufficiently large portions of it are to make it one of the most significant phenomena of the last decade. In fact, we argue that while satellite and sensors have exponentially increased the volumes of geospatial information available, the participation of the public is transformative because it expands the range of participants and stakeholders in society using and producing geospatial information, with opportunities for more direct participation in science, politics and social action.

Situated Innovation of e-Social Science: Integrating Infrastructure, Collaboration, and Knowledge in Developing e-Social Science

This article explores the relationships between academic knowledge and the practice of research in the construction of new computer-supported research tools for e-social science. The article draws on a U.K. e-social science pilot demonstrator project, “Collaborative Analysis of Offenders’ Personal and Area-based Social Exclusion,” that explores the relative impact of individual and neighborhood effects on geographical crime patterns. Three main dimensions of e-social science are addressed by the project: (1) identification of new social research foci, (2) adapting research processes, and (3) developing Grid-related research tools. The integration of these dimensions shows that research-driven and user-led development of computer-mediated research using the Grid can produce relevant and innovative tools for the social sciences.

Researcher-Led Development of E-Research in the Social Sciences: The Case of an E-Social Science Pilot Demonstrator Project

The introduction and use of information and communication technologies (ICT) in the process of research is extending beyond research management into research practice itself. This extension of the use of ICT in research is being termed as e-research. The characteristics of e-research are seen as the combination of three interrelated strands, which are: the increased computerization of the research process; research organized more predominantly in the form of distributed networks of researchers, and a strong emphasis on visualization. E-research has become established in the natural sciences but the development of e-research in relation to social sciences is variable and less pervasive. The richness of the social sciences and their variety of practices and engagement in diverse fields of study mean that e-research as utilized in the natural sciences cannot be easily migrated into the social sciences. This paper explores the development of e-research for the social sciences. The paper is based on an ESRC funded e-social science demonstrator project in which social scientists sought to shape the use of Grid ICT technologies in the research process. The project is called: ‘Collaborative Analysis of Offenders’ Personal and Area-based Social Exclusion’: it addresses social exclusion in relation to how individual and neighbourhood effects account for geographical variations of crime patterns and explores the opportunities and challenges offered by e-research to address the research problem. The paper suggests that if e-research is driven from the needs of social research then it can enhance the practice of social science.

Building networks of European researchers: GISDATA on the Internet

The Internet is fast becoming an essential channel for communications and research and is likely to play a pivotal role in recent initiatives at the European level to face up to the challenges of an information society and develop a European data infrastructure. As the diffusion of computer networks in Europe has only recently gained momentum, little is known about the pattern of use and distribution of access. In this paper are presented the findings of monitoring access to the Gopher and World Wide Web servers of a European-wide research programme (GISDATA) collected during 1994 and 1995. The interest of this case study lies in the specific remit of GISDATA to support the development of the European research community in geographic information and geographic information systems and reduce the fragmentation and potential duplications of efforts of research undertaken exclusively at the national scale on issues that by their nature are regional or European in scale. The findings of the monitoring process undertaken confirm the potential of the Internet in raising awareness and disseminating the research activities of the programme. However, they also indicate the extent of bias towards English-speaking countries when information resources are made available via largely text-based navigating tools such as Gopher. By contrast the potential of the more graphically oriented World Wide Web to readdress this bias is demonstrated by the very significant shifts in the distribution of countries accessing the GISDATA Web server. Although further monitoring of access and research into diffusion patterns is necessary, these findings provide a first snapshot of current strengths and weaknesses in accessing network-based information resources in Europe.