Conference Paper

Validation of an experimental on-demand cloud infrastructure for Earth Observation Web Services


Earth Observation (EO) accumulates spatial and temporal records of the world. It is applied in diverse sectors such as monitoring of the environment, natural disasters, emergencies and civil security among others.
However, Earth Observation still presents critical challenges to overcome the current demand of services that require the processing and storage of massive amounts of data. Moreover, the needs of on-demand Web-based services for new markets and applications is growing fast, driving the development of novel cloud infrastructures to satisfy these demands and bring EO data and value-added services to the mainstream.
In this work we make use of the future Internet technologies and OGC Web-based standards to create a cloud system to store and distribute data acquired from Earth Observation satellites and value-added services: From raw imagery to value-added products result of additional post-processing (vegetation indexes, land covers, image mosaics).
We validate the system by exploiting current open source geospatial stack and infrastructures (GDAL, Geoserver, GeoWebCache) and deploy them on a cloud infrastructure using scalable architectures and facilities like on-demand virtual machines, load balancers, distributed file systems, reverse proxies, etc. We perform benchmarking tests of several distribution mechanisms (FTP, OGC WMS, OGC WFS, OGC CSW, Plain HTTP, etc.) to validate the infrastructure against several use cases of demand-driven EO services.
These use cases are modelled and simulated taking into consideration certain properties of the service: urgency, demand variability and request loads imposed to the cloud deployment. A detailed monitoring of the infrastructure is maintained: CPU, disk usage, memory, network bandwidth, network traffic, response times, requests per second, etc. To bring these models to the real world, several uses cases are simulated: Emergencies, Infrastructure monitoring, Land Management, Precision Agriculture, Basemaps, Online Catalogue.
This benchmarking work constitutes the first results of the GEO-Cloud experiment, which is part of the Fed4FIRE European Project (number 318389). The implementation of the cloud EO services infrastructure in the BonFIRE cloud, the end users loads and use cases models are implemented in the Virtual Wall testbed.


Elecnor Deimos, Félix Pedrera, Manuel José Latorre, Jonathan Becedas, Rubén Pérez, Gerardo González

Presenter Biography: 

Dr. Jonathan Becedas is Electrical Engineer and Industrial Engineer graduated with honours. He holds a Master in Research and a PhD in Mechatronics by the Univ. of Castilla-La Mancha (UCLM), Spain. He is author of over 40 fully refereed papers in ICT and SPACE and has participated in more than 10 research projects. He held a position of Researcher and Associate Prof. in UCLM (2002-2009), and Research Associate in the University of Leicester, UK (2009-2011). He was head of the Robotics Division in Ixion Industry and Aerospace (2011-2013). He is currently R&D Manager in Elecnor Deimos where he coordinates R&D activities and projects.

Mr. Rubén Pérez Pascual is a Computer Engineer by the Univ. of Castilla La Mancha (UCLM), Spain. He is currently an R&D internship researcher in Elecnor Deimos since February 2014, where he finishes his Master Thesis about Cloud Computing, Future Internet and Federated Platforms applied to Earth Observation. He is participating in the FP7 Fed4FIRE project.

Mr. Gerardo González is Aeronautical Engineer by the Universidad Politécnica de Madrid. He is contributor of “Innovative Ideas for Micro/Nano-satellite Missions” edited by Sandau R. et al.. He holds an internship in Elecnor Deimos since February 2013, where he carried out his Master Thesis in the design of Earth Observation Satellite Missions, achieved with honours. He is working as systems engineer in the Deimos-2 project and in the R&D FP7 Fed4FIRE project.

Mr. Félix Pedrera received his MSc (2002) in Physics from the Universidad Autónoma de Madrid. He is Project Manager at Elecnor Deimos and counts more than 7 years of experience developing and coordinating Mobile, Web and research projects. He is member of the Spanish Open Knowledge Foundation Local Group, promoting environmental open data publishing at local level.

Mr. Manuel José Latorre is a Telecommunications Engineer (Electronic & Telematic specialities) by the University of Málaga (UMA). He is Senior Engineer at Elecnor Deimos (ICT Solutions division) with more than 5 years of experience as lead developer, technical director and coordinator in Augmented/Virtual Reality, Mobile, Web and research projects, such as “España Virtual” or “Arid-Lap” R&D projects.

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