en
Scientific article
English

An interoperable web portal for parallel geoprocessing of satellite image vegetation indices

Published inEarth science informatics, vol. 8, no. 2, p. 453-460
Publication date2015
Abstract

The main objective of this paper is to introduce a portal of geoprocessing services that can be used to compute either a single vegetation index or a combination of vegetation indices, as a workflow. High Performance Computing (HPC) resources are used for the calculations, and the Web Processing Service (WPS) standard is used to handle the requests from and the responses to the portal. In case of a workflow, a single node of the cluster is dedicated to each index, and the number of used cores depends on the complexity of the task. In addition, based on a series of experiments made to accelerate remote sensing image processing, a parallelization method within the computational node is automatically chosen depending on the complexity of the operations and the amount of data. The suggested algorithm optimizes the processing by selecting the best methodology (serial or parallel) and the number of cores to efficiently manipulate and distribute the data. The interoperable web portal, Spatial Data Infrastructure (SDI) and the heterogeneous resources of HPC cluster are located in the same local area network, and the cluster nodes have access to the data via network file system sharing. The use of standardized web services makes it possible to use remote data as inputs.

Keywords
  • GIS
  • WPS
  • GRASS GIS
  • Parallel computing
  • High performance computing
  • Web portal
Funding
  • Swiss National Science Foundation - ARPEGEO
Citation (ISO format)
ASTSATRYAN, H. et al. An interoperable web portal for parallel geoprocessing of satellite image vegetation indices. In: Earth science informatics, 2015, vol. 8, n° 2, p. 453–460. doi: 10.1007/s12145-014-0165-3
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal1865-0473
645views
5downloads

Technical informations

Creation12/04/2014 12:47:00 PM
First validation12/04/2014 12:47:00 PM
Update time03/14/2023 10:23:20 PM
Status update03/14/2023 10:23:20 PM
Last indexation01/16/2024 3:00:45 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack