STATUS OF EARTHSCOPE DATA MANAGEMENT AT THE IRIS DMC

JOHNSON, P.A., TRABANT, C., and BENSON, R., IRIS DMC, Seattle, WA 98105, USA, peggy@iris.washington.edu, chad@iris.washington.edu, rick@iris.washington.edu.

The IRIS Data Management Center (DMC) is host of the world's largest seismological database of its kind. We collect, archive, and distribute data in real-time and participate extensively in performing and documenting Quality Control. The IRIS archive includes data collected from monitoring networks located all over the globe, including the most recent addition: data of the NSF-funded EarthScope project. The visionary EarthScope project combines seismic (USArray), geodetic (PBO), and deep fault-zone (SAFOD) monitoring across the United States in order to gain an improved 4-D understanding of the structures and geological processes that continue to form the North American continent. These three components of EarthScope (USArray, PBO, and SAFOD) will eventually generate many 10's of terabytes of data. EarthScope is currently in its third year of a 10-year science plan, and the project is well underway. In response, the IRIS DMC has adapted both in staff and activities to accommodate the increased data flow and to conduct its responsibilities. For example, two recently hired staff members are responsible for the QC of over 100 USArray stations delivering hundreds of channels of data to the DMC. Additionally, systems will soon be in place that will allow a user to request data delimited by parameters such as RMS values or other long-trending estimations like timing signal quality or completeness (eliminating data that is too gappy). This poster will present an overview of DMC activities and technological upgrades, with a special emphasis on EarthScope holdings, and will include an update of eastern seaboard regional network holdings that now flow into the archive in real-time. In addition, we will provide an overview of the new types of data being collected by the DMC, for example, borehole strain, laser strain, magnetotelluric, and 4 kHz borehole seismic. What will emerge from viewing our poster is a sense of how the fabric of data coverage archived and distributed by the IRIS DMC is much stronger than the sum of its parts, and that unrestricted access to data fosters the most important goal of collected data: scientific research and discovery.