SAC file format [Article]
A SAC formatted data file generally contains a single, contiguous segment of time-series data structured as a header section followed by floating point data values. The SAC file format can be eit
How can I get access to RESP files of stations? [Article]
RESP files can be downloaded from IRIS DMC or generated from a dataless SEED using software tools. With a dataless SEED file, rdseed can generate a RESP file. PDCC can
How to request data in SAC format [Article]
User Question: I was wondering how I can request data in SAC format? In the BREQ_fast request description there is no option for SAC. Answer: Usin
NetDC request [Article]
NetDC- is a data request system that allows a user to request seismological information from multiple data centers through a single email mechanism. Information is delivered to the user through email ...
What is the difference between assembled and customized data? [Article]
Assembled Data Some data comes to the DMC in a format other than SEED, such as SEG-Y or SAC. These data are considered "assembled" because they are unique to a project or experiment and are no
How do I get station response information? [Article]
Station response information is part of the SEED data format. You can extract responses from a SEED volume using rdseed OR you can view response information directly from our database using
How can I request miniSEED data? [Article]
What is MiniSEED data? MiniSEED data is a stripped down version of SEED data which only contains waveform data. There is no station and channel metadata included. Getting a MiniSEED F
How do I decrypt restricted data? [Article]
IRIS routinely distributes restricted data sets to authorized users in encrypted format to ensure the data remains in a private access domain for the time period of the access restriction. Authorized ...
Waveform Request Tools [Article]
..._FAST
Batch access to the IRIS DMC archive can be obtained by electronically mailing a specially formatted file to the IRIS DMC in Seattle.
These ar
How do I extract compressed tar files? [Article]
Q: I am downloading a file through ftp that has '.tar', ‘.tar.gz’, or ‘.tgz’ in the filename. What does this mean and what do I do with it? A: This is the T
How do I use rdseed? [Article]
A: Detailed instructions for using rdseed are available in the online rdseed manual.
What is SEED? [Article]
What is SEED? The Standard for the Exchange of Earthquake Data (SEED) is an international standard format for the exchange of digital seismological data. SEE
Generate a Summary File Using JWEED [Article]
Q: I am enquiring after I received the SEED file that I requested, how can I add the .summary file when using rdseed to extract the data. I want to add the summary file because I want the output .
In what format are the data at the DMC stored? [Article]
Almost all data stored at the DMC arrives in the well-structured SEED exchange format. Much of the PASSCAL data is also in SEED format but some are in other formats such as SEG-Y, SAC, or AH.
How to access the RCBR station data [Article]
Q: I'm a student of Geophysics and work at the UFRN's seismology laboratory (Brazil) and I would like to know how to access the RCBR's station data (Riachuelo, Brazil), after the 15 days that are avai...