Executive Summary Errors associated with geospatial data can propagate through natural-science (biologic, geographic, geologic, geospatial, and hydrologic) models that utilize raster processing, resulting in significant and spatially variable prediction uncertainty. This inherent prediction uncertainty affects how model results are interpreted by scientists, environmental regulators, resource m...

Research into the nature and function of curricular matters in applied geography has provided an opportunity to assess the penetration and relative importance of geospatial technology to the discipline of geography. Departments of Geography with degree programs in applied geography were surveyed to find out how important geospatial technology was in the preparation of students for meaningful jo...

M uch of the information that underpins the challenges facing society today—terrorist activities, global environmental change, natural disasters—is geospatial in nature. An everyday example of key geospatial data is the location of a cell phone user who has dialed 911 in an emergency. In terrorist situations, the origins and destinations of phone calls, travel patterns of individuals, dispersal...

The traditional Web services architecture uses a keyword based search to match a query to one or more service providers. However, a world-toword matching to discover a service provider is too simplistic for geospatial data and fails to capture matches that advertise their functionality using domaindependent terminology. In this paper, we present DAGIS (Discovering Annotated Geospatial Informati...

User-contributed content represents a valuable information source provided one can make sense of the large amounts of unstructured data. This work focusses on geospatial content and specifically on travelblogs. Users writing stories about their trips and related experiences effectively provide geospatial information albeit in narrative form. Identifying this geospatial aspect of the texts by me...

Efficient crisis response and management requires well-informed actors and stakeholders and effective means for communication and policy enforcement. A secure and dependable geospatial information and communication technology (ICT) infrastructure may be an indispensable aid if it is tailored to the needs of the respective risk and crisis management phases and the various users. During an ISCRAM...

The explication of the semantics of geospatial concepts is a crucial research priority which affects various aspects of information representation, formalization, integration, and exchange. The aim of the present paper is twofold. Firstly, it proposes a methodology for the semantic definition of geospatial concepts. The proposal is based on an analysis of the semantics of geospatial concepts de...

Finding relevant geospatial information is increasingly critical because of the growing volume of geospatial data available through distributed environments. It is also a challenge for the ongoing development of the Geospatial Semantic Web. Data brokers provide searchable repositories through which users can generally retrieve the requested data. But generally, these mechanisms lack the capacit...

Geospatial data resources are the foundation of the construction of geo portal which is designed to provide online geoinformation services for the government, enterprise and public. It is vital to keep geospatial data fresh, accurate and comprehensive in order to satisfy the requirements of application and development of geographic location, route navigation, geo search and so on. One of the ma...

Big data has now become a strong focus of global interest that is increasingly attracting the attention of academia, industry, government and other organizations. Big data can be situated in the disciplinary area of traditional geospatial data handling theory and methods. The increasing volume and varying format of collected geospatial big data presents challenges in storing, managing, processi...