1 earth science technology office the earth science (es) vision: an intelligent web of sensors...
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1Earth Science Technology Office
The Earth Science (ES) Vision:The Earth Science (ES) Vision:An intelligent Web of SensorsAn intelligent Web of Sensors
IGARSS 2002 Paper 02_06_08:20IGARSS 2002 Paper 02_06_08:20
Eduardo Torres-Martinez – ES Technology OfficeGran Paules – NASA HQ ES Enterprise
Mark Schoeberl – Goddard Space Fight Center Michael W. Kalb – Global Science and Technology Inc.
http://esto.gsfc.nasa.gov
EARTH SCIENCE ENTERPRISEEARTH SCIENCE ENTERPRISE
2Earth Science Technology Office
Sensorwebs for Earth ScienceSensorwebs for Earth Science
A sensorweb is a virtual organization of multiple sensors combined into an intelligent ‘macro instrument’ such that
information collected by any one sensor can be used by other sensors in the web, as necessary to accomplish a coordinated
observing task.
Real-timeCollaborative
Behaviors
Sensor Platforms
On-boardProcessing
“Network”Communications
CommonInterface
Languages
3Earth Science Technology Office
Sensorwebs are the Observing ComponentSensorwebs are the Observing Componentof an End-to-end Architectureof an End-to-end Architecture
Surface
Airborne
Near-Space
LEO/MEO Commercial Satellites and Manned Spacecraft
Far-Space
Ln/Geo/HEO TDRSS & CommercialSatellites
Te
mp
ora
ryP
erm
an
en
t
Forecasts & Predictions
Aircraft/UAVsBalloonsSondes
User Community
4Earth Science Technology Office
ES Development of the Sensorweb ConceptES Development of the Sensorweb Concept
Precursor applications:
• Landsat-7 and EO-1 are formation-flying platforms that perform coordinated research and applications observations.
• The Aqua (05/02), Aura (01/04), Parasol (04/04), Cloudsat (04/04), and Calipso (04/04) platforms will become a formation-flying “train” that performs correlative research measurements.
5Earth Science Technology Office
Far-term Sensorweb ApplicationsFar-term Sensorweb Applications
ES Vision concepts include sensorwebs as enabling elements for systems that:
• Automatically implement optimized observation strategies for weather and climate predictive systems such that the useful range of forecasts would be extended.
• Automatically optimize the allocation of diverse assets for observations needed to predict; detect; and monitor the development certain natural hazards such that we can better mitigate the effects of such hazards.
6Earth Science Technology Office
By introducing a feedback path between a forecast model and a sensorweb-based observing system, future observations could
be tailored to the specific data acquisition needs identified by the forecast model.
This approach applies the flexibility of the sensorweb to enable observing strategies that produce special data sets when and where it
makes sense to have the highest impact on the forecast model run.
Advanced Weather Predictive SystemAdvanced Weather Predictive System
ImprovedForecasts
TailoredObservations
OptimumizedModel Runs
7Earth Science Technology Office
Weather Predictive System ‘Control Loop’Weather Predictive System ‘Control Loop’
• Meteorological Context• Operational Directives
• Focused Observations• Processed Information• Event Guidance
M/DA System
• Data Analysis & Assimilation• Numerical Integration• Model Performance Assesment
SensorWeb
• Terrestial-based Network• Space-based Network
8Earth Science Technology Office
Advanced Hazard Management SystemAdvanced Hazard Management System
Sensorweb-enabled observations linked with predictive models would provide reliable hazard warnings and monitor events to provide real-
time data sets needed to drive decision-support systems.
This approach applies the flexibility of the sensorweb to enable observing strategies that produce special data sets when and where it makes sense to
guide actions—such as evacuations or deployment of relief efforts—that mitigate losses.
ImprovedHazard Response
ReliableWarnings
Loss / DamageForecasts
Real-timeMonitoring
9Earth Science Technology Office
Hazard Management System ‘Control Loop’Hazard Management System ‘Control Loop’
• Observation Strategy• Operational Directives
• Focused Observations• Processed Information• Event Guidance
SensorWeb
• Terrestial-based Network• Space-based Network
Hazard Mon/Mit System
• Data Fusion and Analysis• Hazard Prediction /Assessment• Scenario Development
10Earth Science Technology Office
Technical Challenges of Sensorweb DevelopmentTechnical Challenges of Sensorweb Development
Implementation will require research and development of technologies such as:
• Smart software ‘agents’, data fusion algorithms, and other software capabilities needed for automatic decision-making.
• Interface languages, operational policies, and protocols that enable transparent communications across systems-of-systems.
• Scalability that supports incremental addition and retirement of assets while providing commensurate performance.
• Visualizations that provide human operators with a consistent picture across all layers and components of the architecture.
11Earth Science Technology Office
Programmatic Challenges of Sensorweb DeploymentProgrammatic Challenges of Sensorweb Deployment
Deployment will require new ways of thinking and doing business for both NASA and the international ES community:
• Understanding of how to apply the concept for maximum benefit to ES constituents must develop.
• New business models for mission planning, selection, and procurement must be adopted.
• Collaboration from partners and commitment to a long-term strategy will be needed to design sensorweb-capabilities across mission sets.
12Earth Science Technology Office
The Earth Science (ES) Vision:The Earth Science (ES) Vision:An intelligent Web of SensorsAn intelligent Web of Sensors
IGARSS Paper 02_06_08:20IGARSS Paper 02_06_08:20
Eduardo Torres-Martinez – ES Technology OfficeGran Paules – NASA HQ ES Enterprise
Mark Schoeberl – Goddard Space Fight Center Michael W. Kalb – Global Science and Technology Inc.
http://esto.gsfc.nasa.gov
EARTH SCIENCE ENTERPRISEEARTH SCIENCE ENTERPRISE
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