Abstract
Abstract. Rapidly discovering, sharing, integrating and applying geospatial information are key issues in the domain of emergency response and disaster management. Due to the distributed nature of data and processing resources in disaster management, utilizing a Service Oriented Architecture (SOA) to take advantages of workflow of services provides an efficient, flexible and reliable implementations to encounter different hazardous situation. The implementation specification of the Web Processing Service (WPS) has guided geospatial data processing in a Service Oriented Architecture (SOA) platform to become a widely accepted solution for processing remotely sensed data on the web. This paper presents an architecture design based on OGC web services for automated workflow for acquisition, processing remotely sensed data, detecting fire and sending notifications to the authorities. A basic architecture and its building blocks for an automated fire detection early warning system are represented using web-based processing of remote sensing imageries utilizing MODIS data. A composition of WPS processes is proposed as a WPS service to extract fire events from MODIS data. Subsequently, the paper highlights the role of WPS as a middleware interface in the domain of geospatial web service technology that can be used to invoke a large variety of geoprocessing operations and chaining of other web services as an engine of composition. The applicability of proposed architecture by a real world fire event detection and notification use case is evaluated. A GeoPortal client with open-source software was developed to manage data, metadata, processes, and authorities. Investigating feasibility and benefits of proposed framework shows that this framework can be used for wide area of geospatial applications specially disaster management and environmental monitoring.
Highlights
Discovering, sharing, integrating and applying geospatial information are key issues in the domain of emergency response and disaster management
All of the designed and implemented processes are chained in a main fire detection processing service
Our goal was to evaluate the feasibility of using this standard in a real world fire hazard alerting system
Summary
Discovering, sharing, integrating and applying geospatial information are key issues in the domain of emergency response and disaster management. Friis-Christensen et al demonstrated feasibility of using services as a basis for distributed service oriented geoprocessing to provide users with a distributed application that enables the assessment of fire damaged areas, based on land coverage data in a given area (Friis-Christensen, A., et al 2009) He discussed different data and control flow patterns in a workflow of geospatial web services. V. Rautenbacha et al evaluated existing WPS frameworks for orchestration of web services to prepare, discover and present information, instead of data, to the user (Rautenbacha, V. et al, 2012b). Rautenbacha et al evaluated existing WPS frameworks for orchestration of web services to prepare, discover and present information, instead of data, to the user (Rautenbacha, V. et al, 2012b)
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