HISTORICAL CONTEXT OF CURRENT OPERATIONS, Figure A3.2. Figure A3.2.
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The IRIS DMC is an extremely active data center and has become a central component enabling seismologists to do their research. beginning in 2006, the amount of data flowing out of the DMC exceeded the amount of new data arriving at the DMC, with an estimated 80 terabytes of data being shipped from the DMC in 2010 versus 20 terabytes of new data flowing into the DMC. A ratio of 4:1 is extremely high for a scientific data center and attests to the active use of the IRIS DMC.</p>