1. July 27, 2014Metadata Workshop, Bogotå 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

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 July 27, 2014Metadata Workshop, Bogotå

3. Get the Software from the web: http://www.iris.edu/dms/nodes/dmc/softw are/downloads/pdcc/38-pl1/ You will be prompted to fill out a "software request" form prior to download July 27, 2014 Metadata Workshop, Bogotå

4. Type: unzip pdcc-3.8.zip You may also double-click the icon to invoke your computer’s default mechanism for unpacking the file. Move the zip file to appropriate installation directory on your machine July 27, 2014Metadata Workshop, Bogotå

5. The directory will contain these files/directories: Directory called PDCC-3.8 July 27, 2014 Metadata Workshop, Bogotå

6. IRIS Solution: PDCC and Nominal Response Library (NRL) July 27, 2014Metadata Workshop, Bogotå PDCC: http://www.iris.edu/dms/nodes/dmc/software/downloads/pdcc/38-pl1/ NRL: http://www.iris.edu/NRL

7. 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. To run PDCC, type this command: July 27, 2014Metadata Workshop, Bogotå

8. NRL Tool: built into PDCC July 27, 2014Metadata 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 July 27, 2014Metadata Workshop, Bogotå

10. PDCC as dataless editor July 27, 2014Metadata 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 July 27, 2014Metadata Workshop, Bogotå

12. Dataless SEED volumes http://www.iris.edu/pub/RESPONSES/DATALESS_S EEDS 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 July 27, 2014Metadata Workshop, Bogotå