USArray Breakout GroupThe USArray system:• Sensor Collection point• Collection point Archive• Archive User• User Scientific Results

1-2 are well understood, the only issues outstanding are:• Quality Assurance• Distributed Archive• Telemetry for the SP sensors of the flexible array• Web Available site characteristic database

Archive User Results

• User Client Capabilities• User USArray Collection• User EarthScope Collection

• Leverage commercial IT development as much as possible

• Hire professional programmers for development Don’t rely on scientific community for production codes

Client Side Web Services

• Visualization

• Mapping

• 3-D GIS tools

• Grid Computing

• Data Analysis and Local Archival Tools

• EarthScope Search Tools

USArray Collection

• Standard Products & Services : Time Series Data– Zero-order results developed by contract work or

provided by other agencies/organizations– Possibilities

• Tomography Models• Interface images from converted/scattered waves• S-wave splits• Active source seismic models• Phase picks (provided by IRIS DCCs and DMC)• Eq locations (provided by USGS/Regional network operators)• Source mechanisms

USArray Standard Products (cont.)

• Time Series based standard products - require metadata and web links that provide– Source codes

– Impulse Response or equivalent of algorithms used

– Error estimates and their meaning

– All Geographical Metadata

– Processing Audit Trail

– In some cases the actual data used (e.g. phase picks or event windowed data)

USArray Standard Products (cont.)Time Series Data

• Goal is complete reproducibility• IRIS Expert working groups provide

guidelines• Virtual Science Center is established

for production• Competitive bidding used to award

contracts

USArray/EarthScope Collection Standard Products Non-Time Series Data

• Needed are compilations of or links to:– All types of digital geologic maps

– Digital elevation models

– Mineral physics/petrophysical data

– Climate/paleoclimate maps

– Groundwater and other fluid maps and volumes

– Plate reconstructions and paleogeography maps

– Heat flow and geothermal field models

– Potential Field Maps

– Geochronology/thermometry/barometry w. Metadata (Catalogues of samples/Analysis methods)

USArray Contributed Products

• In the USArray or EarthScope Collections– Research results and algorithms– Results offered in standard formats or with wrappers

that will generate standard formats– Requirements for contributed products should be

established that promote• Uniformity of product formats• Easy compliance by researchers• Reproducibility• Establish extensible system: contributed products

can become standard products

USArray: Web Services, Standard and Contributed Products: How to get there

• No Single Approach: Interface with– IT community for semantics development– Ocean Science Community to leverage their

developments for MGG data– USGS for maps– Industry for mapping/GIS integration software

• IRIS Expert Groups recommend seismic products• EarthScope proposal needs a provision for funding IT

developments outside of MREFC account• Plan to hire professional programmers for Virtual Science

Center

EarthScope Pilot IT Tests

1. Existing USGS-Academic, SCEC, SAFOD, or Continental Dynamics Projects

1. Emphasize a multidisciplinary research program to enfranchise the geologic community

2. Endorse the concept but not a particular project

3. Competitive project selection

EarthScope Pilot IT Tests (cont.)

2. End-to-End test of the USArray seismic imaging system using

1. An already funded field experiment with a USArray type mix of seismology experiments

2. A theoretical system response including resolution and sensitivity estimates of modern analysis methods = System Impulse Response

EarthScope Pilot IT Tests

Initiate a modification of the NASA mission model that includes

1. Preliminary design review, and 2. Critical design reviewOf each EarthScope system including the IT

componentInstitute periodic design review as ES

proceeds