The FISSURES project developed from an initiative by IRIS to improve earth scientists' efficiency by developing a unified environment that can provide interactive or programmatic access to waveform data and the corresponding metadata for instrument response, as well as station and channel inventory information. FISSURES was developed using CORBA (Common Object Request Broker Architecture) as the architecture to implement a system-independent method for the exchange of this binary data. The IRIS DMC developed a series of services, referred to as the Data Handling Interface (DHI), using the FISSURES architecture to provide waveform and metadata from the IRIS DMC.

The NCEDC has implemented the FISSURES Data Handling Interface (DHI) services at the NCEDC, which involves interfacing the DHI servers with the NCEDC database schema. These services interact with the NCEDC database and data storage system, and can deliver NCEDC channel metadata as well as waveforms using the FISSURES interfaces. We have separate FISSURES DHI waveform servers to serve archived and DART data stream. Our FISSURES servers are registed with the IRIS FISSURES naming services, which ensures that all FISSURES users have transparent access to data from the NCEDC.

Berkeley Seismological Laboratory
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