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— The Weather in CH-3952 Susten: Reliability —

Reliability

This is a hobbist's weather station, not scientifically accurate gear. The station is old. The collected data must not be considered as precise and absolute. However, the errors are always the same. That means that these records can be used to compare weather data over the years.

For the sake of this collection, each year has 366 days. Years that are not leap years do not have data for 29. February. Usually the time is the CET Central European (Winter-) Time (UTC +1 hour). There is some doubt about having used daylight saving time CEST (Central European Summer Time) some of the years prior to 2000.

The weather station runs on commercial power but has a backup battery in case of a power fail. The internal clock runs with an accuracy of about 10 minutes a year. It is reajusted at least once a year.

Completeness

Unfortunately, the collection is not complete and there are holes in the data. Not all obvious erroneous measurements have been discovered to be set to the not measured value.

The following «holes» are known:

  • 1993: 1. January 00:00 to 17. September, 13:00 (Startup of station at 13:30);
  • 1994: 1. January 00:00 to 09:30 and 26. February 18:30 to 28. February 17:30;
  • 1995: 1. July 00:00 to 10. July 14:00 (forgot data download, memory overrun);
  • 1996: 29. February 00:00 to 1. March 23:30;
  • 1997: no major holes discovered;
  • 1998: 15. June 16:30 to 14. July 8:00 and 24. November 8:00 to 4. December 09:30;
  • 1999: 5. July 17:30 to 20. July 15:00 and from 13. September 17:00 up to the end of the year (data transfer modem failed);
  • 2000: 1. January 00:00 to 4. March 16:00 (data transfer modem failed);
  • 2001: no major holes discovered;
  • 2002: 1. January 00:00 to 29. May 07:00 (hard disk accidently erased);
  • 2003: no major holes discovered;
  • 2004: appears to be complete;
  • 2005: appears to be complete;
  • 2006: appears to be complete;
  • 2007: appears to be complete;
  • 2008: appears to be complete;
  • 2009: appears to be complete;
  • 2010: 2. September 00:30 thru 12. September 11:30 inclusive (data download manipulation error);
  • 2011: appears to be complete;
  • 2012: appears to be complete;
  • 2013: appears to be complete;
  • 2014: appears to be complete; sensor humidity outside appears unreliable.
  • 2015: appears to be complete; sensor humidity outside appears unreliable.
  • 2016: appears to be complete; sensor humidity outside appears unreliable.
  • 2017: will be published on January 2018
 
  © 2004 - 2017 by Horo Wernli.