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Scientific workflow plays an important role in complex scientific computing. It can integrate various data and analysis functions to solve complicated geoprocessing problems which usually involve a couple of steps. They could be accomplished manually step by step in Geographic Resources Analysis Support System (GRASS), an open source Geographic Information System (GIS) software, or automated through...
Geospatial data analytics is emerging as a promising technology in decision support systems in many application domains. This paper presents results from a study on the use of elastic cloud computing to provide geospatial data analytics in an efficient way. The analytics is applied to bulks of satellite data from multi-spectral optical sensors. The system design includes data integration, data caching,...
The demand for computing resources to process the geographical information (GI) queries has been increased drastically. The query helps the users to get the variety of information to serve their needs. Resolving the spatial queries, huge number of heterogeneous data sources along with different computing services are involved. Getting appropriate results within a specific time bound, orchestration...
Most EO image analysis algorithms ignore existing maps for solving ill-posed scene understanding problems and developing inversion procedures, yet new EO data often represent aspects of known objects and events. To solve part of this problem, we introduce a prototype designed to integrate, process and distribute existing heterogeneous local public authority maps with the outputs of automatic reconstruction/interpretation...
National greenhouse gas (GHG) inventories are essential for public policy planning to mitigate GHG emissions. They provide critical information and enhance environmental integrity in planning and development of GHG mitigation policy. The characteristics of a high quality inventory are that it follows good practice according to the IPCC guidelines. The key components of good practice are that the inventory...
Modern warfighters are informed by an expanding variety of Intelligence, Surveillance and Reconnaissance (ISR) sources, but the timely exploitation of this data poses a significant challenge. ObjectVideo ("OV") presents a system, Mobile ISR to facilitate ISR knowledge discovery for expeditionary warfighters. The aim is to collect, manage, and deliver time-critical information when and where...
With the increasing user demand for geographic information, storage and operational problems of massive spatial data to traditional GIS technology presented a huge challenge. Application of WebGIS technology makes traditional GIS functionality is extended, to achieve effective management and utilization of geospatial data, allowing users to obtain geographic information and other functions through...
With the rapid growth of data in various domains, models for data processing become more and more complicated and require higher and higher computing power of local machines. In our opinion, it is a good solution to put models into the "cloud". Integrating and categorizing these models in different domains is convenient for users. They don't have to establish similar systems for different...
Recent advances in Cloud Computing technologies bring a new computing information infrastructure to public users. Using these Cloud Computing platforms, typical information technology resources such as computing, storage utilities, and database are available as services. Geospatial applications often involve diverse sources of data and complex geoprocessing functions. In scientific problem solving,...
This paper discusses the concept of geospatial information service and service chain, defines the meaning of geospatial information atomic service, discusses the quality of atomic service, and establishes the geospatial information service network diagram correlation model. Based on this model, the paper focuses on the design and implementation of semi-transparent geospatial information service chain...
The Web Content Aggregation Service based on Digital Earth geospatial framework is combined form of existing web content aggregation service and corresponding space position information retrieval. The customized service comprises three stages: web content acquisition, aggregation and distribution stage. This paper focuses on the first stage where the required content is fetched from multiple web sites...
The Geospatial Information that service from public organizations and authorities are significantly increasing e.g., JPL OnEarth, GeoBrain, Google, and so on. Those geospatial information services rely on various existing Web technologies such as Web Service, OGC Web Services, REST, and GeoRSS. There are several formats of geospatial data which are published via the standard protocol HTTP such as...
The service-oriented computing paradigm and its application to support e-Infrastructures offers, at least in principle, the opportunity to realise platforms for multi- and inter-disciplinary research. Augmenting the service-oriented model for e-Research are mechanisms for services to be coupled and enacted in a coordinated manner through workflow environments. Typically workflows capture a research...
Nowadays, GIS software is entering a new era of Grid GIS. Represented by Grid GIS, the next generation GIS has become the frontline and hot issue in both the academic community and the industrial sector. However, implementing Grid GIS is confronted with a great deal of challenges, among which Grid-based geospatial computational task processing is the key issue. This paper proposes a new conceptual...
In a service-oriented geoscientific research environment, individual geospatial services must be chained together as scientific workflows to solve a complex geospatial problem. The emergence of various visual workflow designers, such as Taverna, GridNexus, Kepler, greatly facilitates the construction of geoscientific workflows. However, existing scientific workflow tools are mainly desktop-based....
The paper discusses the technical issues of developing the web-based distributed spatial information management framework for geological disaster control. The framework includes four main components: 1) The web-based geospatial portal, which provides users web-embedded GIS user interface with union portal passport and uniform identity authentication. Integrated with role-based and geospatial metadata-driven...
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