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Exploring IRIS Data and Data Quality with QUACK
PDF Plot of a year of data with a period and power selected.
Perhaps the most interesting capability of the QUACK web interface is its ability to show PDF (Power Density Function) plots. PDF plots are histograms of hourly PSD (Power Spectral Density) estimates.
March 2006
IN THIS ISSUE |
Feature Article |
| Project Focus |
| Searchable Product Archive and Distribution Engine (SPADE) |
| Software and the Web |
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| Staff Highlight |
| Anh Ngo - Operations Programmer |
| Data Access |
| Supergravimeter data now archiving at IRIS |
| New Data: arriving at the DMC |
Statistics: |
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The Incorporated Research Institutions for Seismology is a consortium of over 150 research institutions with major commitments to research in seismology and related fields. IRIS operates a facilities program in observational seismology and data management sponsored by the National Science Foundation through its Division of Earth Sciences. |  |