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The Technology and Architecture Standing Committee is tasked with facilitating the development of the EarthCube technology, including stewardship of the ongoing architecture. The Technology and Architecture Standing Committee occasionally coordinates with the Science Standing Committee to ensure that scientific research needs for technology drive the development of the EarthCube architecture.

The TAC hosts regular 1.5 hr long telecons monthly on the first Monday  at 11:00 am PT/ 2:00 pm ET. All are welcome to join. Call-in information and the full schedule are available on the Calendar.
Co-Chair/Leadership Council Representative: David Fulker, formerly OPeNDAP/UNIDATA  (September 2019 - May 2021)
Co-Chair: Donata Giglio, University of Colorado Boulder   (January 2020 - December 2021)
Current Activities

Monday, August 3rd at 8 am pacific time / 11 am Eastern
Video  slides

Presenter: Lucia Cappelletti at MeteoSwiss

Title: OSCAR/Surface: achievements and challenges


The Observing System Capabilities Analysis and Review (OSCAR) Tool is one of the main components of the WMO Integrated Global Observing System (WIGOS) framework.

In an effort to integrate all WMO observing systems, both space- and surface-based, OSCAR provides metadata that enable adequate use of meteorological and climatological observations.  Additionally, OSCAR hosts technology free and quantitative observational user requirements of WMO Application Areas in support of the Rolling Review of Requirements process, a comparison of current and future observing capabilities and observational requirements, for network planning and efficient use of resources.

The surface-based component of OSCAR (OSCAR/Surface) was specified and developed in a joint venture between WMO and the Swiss Federal Office of Meteorology and Climatology. After a few years of juggling unclear or moving requirements, technology constraints and a demanding business logic, the web application became operational in May 2016.

In order to harmonize observational metadata from a large and diverse number of communities, OSCAR/Surface implements the semantic WIGOS Metadata Standard (WMDS) and its application schema, the WIGOS Metadata Data Representation (WMDR).

The technical design of the system is based on the Service Oriented Approach (SOA) paradigm integrated via the Open Service Gateway initiative (OSGi) service platform. RESTful APIs allow interoperability with external systems for observation discovery and metadata provision. A  Graphical User Interface in support of metadata discovery, visualization and management makes the system accessible by users with any level of IT skills and provenance.

As of today, the web-application is used  by almost all 187 WMO Member States and holds metadata for more than 20 thousand climatological and meteorological platforms, on land and sea and in the air.

Recent Documents


EarthCube Projects standards and specifications


Architecture Refinement Workshop, held in Boulder, CO on July 10-12, 2017.  Final Report

Use Case Working Group Reports  / Summary (Spring 2017) 
TAC Review of Architecture Implementation Plan. (Feb 2017)    The LC review of Architecture Implementation Plan. (March 2017)
Architecture Implementation Plan (AIP) Documents (Xentity) (November 2016)
David Arctur and colleagues have provided a series of documents as a starting point (EarthCube AIP References).
Architecture Workshop : Final Report and References  (May 2016)
Recent Presentations
D. Sarah Stamps, James Gallagher, Update on Brokered Alignment of Long-Tail Observations (BALTO)  video
Doug Walker, update on Strabspot    video
Bonnie Hurwitz, Update on Planet Microbe  video
Heather Lynch, ICEBERG: Imagery Cyberinfrastructure and Extensible Building-Blocks to Enhance Research in the Geosciences  Video    Slides
Alexander (Sasha) Kosovichev, Intelligent Databases and Analysis Tools for Geospace Data  Video  slides
Kwo-Sen Kuo, Hongfeng Yu, Update on Optimal Data Layout for Scalable Geophysical Analysis in a Data-intensive Environment,     ABSTRACT    slides   video
Shantenu Jha, Matteo Turilli (Rutgers), Ensemble tool kitvideo
Chad Trabant (IRIS), Deploying Multi-Facility Cyberinfrastructure in Commercial and Private Cloud-based Systems,   video
Ilya Zaslavsky Data Discovery Hub (Data Discovery Studio),  video
Doug Walker, Development of an Integrated Data System for the Geological Field Sciences, Strabospot  video
Brian Mapes - Drilsdown iPython_IDV    video
Danie Kinkade, Adam Shepherd, Ocean Protein Portal    video
Eric Lingerfelt, Presentation and input on the interoperability using and P418  video
Mark Bushnell, National Coordinator, US IOOS/QARTOD - Presentation on Ocean Best Practices (may 3)  slides   video
Ruth Duerr - Presentation on crawling (may 3)  audio
Steve Richard/Kerstin Lehnert: progress on Data Submission Hub project for the EarthCube Alliance Testbed Project (feb 8)   slides     video
Steve Richard and Resource registry WG - report back from F2F (April 5) slides  video
2017 Funded Projects
Joe Hamman, Pangeo   slides   video
Simon Goring, THROUGHPUT  slides   video
Bonnie Hurwitz & Elisha Wood-Charlson, Planet Microbe   slides   video
Sasha Kosovichev, Intelligent databases and Analysis tools for Geospace data   slides   video
Julie Newman, A unified experimental-natural digital data system for analysis of rock microstructures   slides   video
Heather Lynch and Shantenu Jha, ICEBERG   slides   video    web
Liping Di, CyberWay   slides   video
Dan Fuka and Dave Fulker, BALTO   slides   video
Cindy Bruyere, Asset  slides  video
Brad Singer, Geochronology Frontier at the Laboratory-cyberinformatics Interface  slides  video
TBA, Connecting the Earth Science and Cyberinfrastructure communities to advance the analysis of high resolution topography data
Doug Fils - Update on CDF registry August 10, 2017  Slides   video
Virtual Research Networks (Summer 2017)
Jonathon Ross (Geoscience Australia, Data Cube)  video
Stefano Nativi (National Research Council of Italy (CNR-IIA))   video 
Michael Diepenbroeck (Pangea)    video   slides
John Towns (XSEDE)  slides   video    best known practices and lessons learned
Keith Jeffery (EPOS)  slides   video
Ivan Rodero (OOI)  slides   video
Eric Lyons (CyVerse)  slides, Video
Ben Evans (NCI ANU Australia)  slides, Video
Matt Jones (DataONE)  slides, Video
Use Case Working Group Presentation- Karen Stocks (Spring 2017)
Video clips featuring Earthcube tools, recorded during a SCI-TECH Match up Series (Spring 2017)

Funded Project presentations:
Ensemble Toolkit for Earth Sciences. The Power of Many  Shantenu Jha (Rutgers University)
Polar Data Insights and Search Analytics for the Deep and Scientific Web   Chris Mattmann
Deploying Multi-Facility Cyberinfrastructure in Commercial and Private Cloud-based Systems  (GeoSciCloud). Tim Ahern (IRIS)
Collaborative Research: Engaging the Greenland Ice Sheet Ocean (GRISO) Science Network   David Sutherland (University of Oregon)
That dot is a world! Drilling down from a statistics scatterplot to pre-populated case Notebooks   Brian Earle Mapes
GeoTrust: Improving Sharing and Reproducibility of Geoscience Applications   Tanu Malik (University of Chicago)
An Expanded Implementation of Cloud-Hosted Real-Time Data Services for the Geosciences -CHORDS, Mike Daniels (UCAR)
EarthCube Data Discovery Hub   Ilya Zaslavsky (San Diego SuperComputer Center)
Intelligent Systems Research to Support Geosciences-IS-GEO  Suzanne A Pierce (University of Texas)
Development of an Integrated Data System for the Geological Field Sciences Doug Walker (University of Kansas)
Laying the Groundwork for an Ocean Protein Portal Mak Saito (Woods Hole Ocean Institute)
Architecture Implementation Plan David Arctur (Fall 2016)


Connecting EarthCube Projects to the Data Facilities: Yolanda Gil, Chris MacDermaid 
TAC Overview Presentation at the EarthCube 2015 All Hands Meeting: Yolanda Gil and Jay Pearlman
30 November 2015 TAC Overview Presentation to the Science Committee: Yolanda Gil

TAC Working Groups
The work of the TAC is carried out by members of various working groups listed here.  TAC Working Groups are focusing on Architecture, Testbeds, Gap Analysis, Standards and Standards Bodies, Technologies, and Use Cases (to guide cyberinfrastructure requirements). Final Working Group reports (when completed) are available from the TAC working groups page.