Grid for Flood Extent Grid for Flood Extent Extraction from SAR Extraction from SAR Imagery Imagery S. Skakun 1 , N. Kussul 1 , E. Lupian 2 , V. Savorsky 3 , Yu.Tischenko 3 , L. Hluchy 4 , P. Kopp 5 1 Space Research Institute NASU-NSAU, Ukraine 2 Space Research Institute RAS (IKI RAN), Russia 3 Institute of Radio-Engineering and Electronics of RAS, Russia 4 Institute of Informatics SAS, Slovakia 5 Centre National d’Etudes Spatiales (CNES), France
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Grid for Flood Extent Extraction from SAR Imageryd33.infospace.ru/d33_conf/2008_conf_pdf/B/Skakun.pdf · Grid for Flood Extent Extraction from SAR Imagery S. Skakun 1, N. Kussul 1,
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Grid for Flood Extent Grid for Flood Extent Extraction from SARExtraction from SARImageryImageryS. Skakun1, N. Kussul1, E. Lupian2,V. Savorsky3, Yu.Tischenko3,L. Hluchy4, P. Kopp5
1Space Research Institute NASU-NSAU, Ukraine2Space Research Institute RAS (IKI RAN), Russia3Institute of Radio-Engineering and Electronics of RAS, Russia4Institute of Informatics SAS, Slovakia5Centre National d’Etudes Spatiales (CNES), France
2IKI RAN
2008
OutlineOutline
• GEOSS and Current Trends• Specific of EO Applications• Grid in EO Domain• Grid Infrastructure at Space Research Institute• Food Extent Extraction via Grid• Test Study Areas
3IKI RAN
2008
GEOSS StructureGEOSS Structure
4IKI RAN
2008
Data Fusion for Disaster Data Fusion for Disaster MonitoringMonitoring
Basic servics
• NDVI• Land
Cover• DEM• LAI• ...
Input dat
Models
Data assimilation• In-situ
• SYNOP• RAOB
• ДЗЗ
• AIRS• AMSR-E• QuikScat
MeteorologyWRF/MM5
Hydrology
SVAT
Applied services
Users Interested organizations
AgricultureDisastersCharter
Water resources authority
Hydrometcenter
Biodiversity assessment
Yield predictionDrought
monitoringFlood monitoring
& predction
Data asimilation• MODIS• MSG
Input data (satellite, in-situ)
5IKI RAN
2008
Specific of EO Tasks (1/2)Specific of EO Tasks (1/2)
• Data of different spatial and temporal resolutions
• Heterogeneous data processing
• The need for near real-time data access
• Operational access to long-term data archives
6IKI RAN
2008
Specific of EO Tasks (2/2)Specific of EO Tasks (2/2)
• Using models for trends prediction
• Complex data assimilation
• The need for high-performance computing
• Visualization of spatially distributed data
• Informational security enforcement
Atm
osph
ere
Oce
an
Biosphere
Cryosphere
7IKI RAN
2008
Grid is Grid is convinientconvinient environmentenvironmentfor solving these problemsfor solving these problems
• Integration of multi-source data;• High-performance computing for
computationally intensive tasks and the need for processing in the near real-time for fast response;
• Security issues regarding satellite data policy;• Need for managing large volumes of satellite
data;• Can facilitate interactions between different
actors by providing a standard infrastructure and a collaborative framework to share data, algorithms, storage resources, and processing capabilities
8IKI RAN
2008
Grid infrastructureGrid infrastructure
Архів супутниковихданих
Glite StorageElement
Glite ComputingElement
Обчислювальний
кластер
Cтанція прийомуEUMETCast
Обчислювальний кластер
Архів супутникових даних
Grid-сервер на базі GT4
Grid-сегментІКД НАНУ-НКАУ
Кластер СК ІТ-3
Grid-сервер на базі GT4
Grid-сегмент ІК НАНУ
Grid-портал
Grid-сегмент Remote Sensing Ground Station (Китай)
Job Submission Status Job Submission Status --CompletedCompleted
Job is completed
It took approximately >30 min to process a single SAR image on a single workstation.
The use of Grid computing resources allowed us to reduce the time to <1 min !
17IKI RAN
2008
Future ActionsFuture Actions
• To integrate a catalogue of satellite data (Envisat ASAR WSM) with a Grid portal and processing facilities– allow the users to easily search, process and
visualize the EO data (in particular, Envisat ASAR WSM)
• Automatic generation of KML files to be visualized in the Google Earth
18IKI RAN
2008
Flood monitoring (Ukraine, Flood monitoring (Ukraine, TiszaTisza River, 2001)River, 2001)
19IKI RAN
2008
Flood monitoring (China, Flood monitoring (China, HuaiheHuaihe River, 2007)River, 2007)
20IKI RAN
2008
Flood monitoring (Mozambique, Flood monitoring (Mozambique, Zambezi River, 2008)Zambezi River, 2008)
21IKI RAN
2008
Flood Flood –– India & Nepal, 2008India & Nepal, 2008
Flood waters derived from ESA’s Envisat satellite ima gery(20 August 2008)