Appendix I: Failure Modes

The following is a list of possible problems that have been compiled from past experiences, mainly from the Atmospheric Radiation Measurement (ARM) research facilities and the experiences from developing and operating a solar measurement station at our respective institutions.

Some key points before addressing possible equipment failures:

  • Proper maintenance is the final step in quality control of measurements. After a measurement is recorded, only data quality assessment is possible.

  • A situation with no data is often better than one that produces bad data. Unless bad data is identified and flagged, it can destroy confidence in and value of the set data.

The first section will cover observed problems, and possible causes ...

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