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Rick Benson IRIS Consortium

Metadata Help from the DMC Our motivation is to enable networks to perpetually archive their data in open and accessible archives. Rick Benson IRIS Consortium. The Successful Currency to Date: Dataless SEED. It’s for basic accounting & note taking GOAL:

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Rick Benson IRIS Consortium

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  1. Metadata Helpfrom the DMCOur motivation is toenable networks to perpetually archive their data inopen and accessible archives. Rick Benson IRIS Consortium Metadata Workshop, Bogotå

  2. The Successful Currency to Date: Dataless SEED • It’s for basic accounting & note taking GOAL: • Create metadata that produces an accurate 2 history of ground motion at each station. • Some is easy- • Where (locations/depths/orientations), • Accurate orientations to get at elastic anisotropy, • Gains and timing to get accurate magnitudes, locations, etc • When (epochs, installations, decommissions) • What (description of sensor/dataloggers) • Some is hard- RESPONSES are the key component, hardest to get right Metadata Workshop, Bogotå

  3. Get the Software fromthe web:http://www.iris.edu/dms/nodes/dmc/software/downloads/pdcc/38-pl1/You will be prompted to fill out a "software request" form prior to download Metadata Workshop, Bogotå

  4. Move the zip file to appropriate installation directory on your machine • Type: unzip pdcc-3.8.zip • You may also double-click the icon to invoke your computer’s default mechanism for unpacking the file. Metadata Workshop, Bogotå

  5. Directory called PDCC-3.8 The directory will contain these files/directories: Metadata Workshop, Bogotå

  6. IRIS Solution: PDCC and Nominal Response Library (NRL) PDCC: http://www.iris.edu/dms/nodes/dmc/software/downloads/pdcc/38-pl1/ NRL: http://www.iris.edu/NRL Metadata Workshop, Bogotå

  7. To run PDCC, type this command: java (–Xmx512m –Xms512m) –jar run_pdcc.jar • The –X options in parenthesis are optional) • The –Xmx512m is to increase heap space in Java • The –Xms512m is to increase stack space in Java • You may not need to increase resource allocation but it doesn’t hurt if you have it. Metadata Workshop, Bogotå

  8. NRL Tool: built into PDCC Metadata Workshop, Bogotå

  9. Build a dataless SEED • Answer GUI questions that guide you to correct RESP file for your sensor first, then datalogger • Information is imported from NRL • Overall gains are calculated, evaluated Metadata Workshop, Bogotå

  10. PDCC as dataless editor Metadata Workshop, Bogotå

  11. Some common problems • Channel epochs don’t fall within station epochs • Channel epochs overlap; must be unique • Example: • 2001,192,18:00:00 to 2005,192,23:45:00 followed by: • 2005,191:23:45:00 to NoEnd • Numerous station epochs, not needed unless station has moved • Please follow site-name convention/protocol • CMB Columbia College, California, USA • Check your coordinates, get + and – right or your station ends up in Mongolia Metadata Workshop, Bogotå

  12. Dataless SEED volumes • http://www.iris.edu/pub/RESPONSES/DATALESS_SEEDS • These are auto-built when new metadata is delivered to DMC, merging all stations into network volumes • They are “as-is” • What is needed is help getting these correct • Means that what comes in needs to be correct Metadata Workshop, Bogotå

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