Help with SEED
As much as possible, waveform data archived at the NCEDC are made available in SEED format.
SEED - Standard for the Exchange of Earthquake Data
The Standard for the Exchange of Earthquake Data (SEED) is an international standard format for the exchange of digital seismological data. SEED was designed for use by the earthquake research community, primarily for the exchange between institutions of unprocessed Earth motion data.
SEED files normally contain the digital timeseries as well as station and channel information describing the complete instrument response for each time series.
SEED is defined and developed by the FDSN Working Group on data exchange.
An Introduction to SEED provides an overview of the SEED format. The SEED Manual (PDF) describes the complete SEED format.
rdseed - Program to read SEED files
IRIS has developed and freely distributes the program rdseed which will read SEED files, extract station/channel instrument responses, and convert the seismograms to other standard user format such as AH, SAC, CSS, and miniSEED formats. The rdseed program is available for Unix systems from the ftp program archive at the IRIS DMC
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Northern California Earthquake Data Center
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Last modified: Mon Dec 15 10:54:34 PST 2008