The Federated Data System DataFed

2001-2006 NSF, NASA, EPA

Non-intrusive data integration infrastructureStandards-based data access

Catalog of federated datasetsFor finding and accessing datasets

Flexible processing toolsBased on web-service workflow orchestration

2006 – 2011 NASA, EPA, ESIP

Same as above – Transition to GEOSS User & GEOSS; AIP 1,2,3; GCI; AQ Co

2011 – 2015 ?? ?? ??

Data network for AQ Decisions & Sci by 2015? DataFed: A Client & Server Node in ADN

OGC WCS Data Access Protocol

Provides SOA for Lose Coupling for Autonomous Nodes Facilitates Publishing, Finding and Accessing Data

OGC W*S Standard Lose Coupling through Wen Service Protocol

Application of OGC WCS Data Access Protocol

Regardless of the data location, data type and format,

• the parameter-space-time query is the same

• the return is in user selectable format from the offerings

Coverage=THEEDDS.T& BBOX=-126,24,-65,52,0,0 &TIME=2002-07-07/2002-07-07 &FORMAT=NetCDFCoverage=SEAW.Refl& BBOX=-126,24,-65,52,0,0 &TIME=2002-07-07/2002-07-07 &FORMAT=GeoTIFFCoverage=SURF.Bext& BBOX=-126,24,-65,52,0,0 &TIME=2002-07-07/2002-07-07 &FORMAT=NetCDF-table

Grid Image Station Data

Parameter Bounding Box Time Range Out Format

DataFed Tools - Subset

Consoles: Data from diverse sources are displayed to create a rich context for exploration and analysis

CATT: Combined Aerosol Trajectory Tool for the browsing backtrajectories for specified chemical conditions

Viewer: General purpose spatio-temporal data browser and view editor applicable for all DataFed datasets

The Information Interoperability Stack

Screencast: Info System Screencast

Flow of Data and Usage Control

Data

Control

Requesting Information

Providing Information

Sensors

Acquisition processing

User Agencie

s

User Progra

ms

NAAQS SIPs Forecast GEOSS …

Info SystemNegotiating Space

Domain ProcessingData Sharing

Std

. In

terf

ace

Gen. ProcessingS

td.

Inte

rface

Data

Control

Reports

Reporting

Obs. & Models Decision Support System