[rimprona] RIMpro anomalies

[David A. Rosenberger]

As most of you probably know if you have referenced earlier posts on my blog, I have been running RIMpro using the NEWA weather station at Highland with the Norwegian yr.no<http://yr.no> forecast as well as the MeteoBlue virtual weather data set up for the same location.  So far, the MeteoBlue forecast seems to be predicting longer wetting periods and/or warmer temps than the yr.no<http://yr.no> forecast, but the yr.no<http://yr.no> forecast seems to be closer to reality as measured by our on-ground NEWA station.  Thus, for the next two days, the MeteoBlue system is predicting a RIM event that will reach 482 whereas the yr.no<http://yr.no> system is predicting an event that will reach a RIM value of only 11.  I have not taken time to determine if the major difference between the two systems is wetting during or temperature, but I believe it is wetting duration.

Of more concern to me is a pattern with MeteoBlue that I do not yet undestand.  I had assumed that if I checked the recorded RIM value for yesterday, that value would remain constant throughout the rest of the season because that weather event is now history. (In fact I have been recording the RIM values of the previous day every morning.)  What I am finding, however, is that (at least with MeteoBlue) the history also changes over time.  For example, when I checked the Venturia table yesterday at 5 pm, the MeteoBlue table said that the RIM value for Sat, 9 April, was 10. When I checked this morning, the history for Sat, 9 April was showing a RIM value of 1166 and the value for Friday, 8 April (which had previously been 1) was now shoing 1079.  Thus, MeteoBlue seems to be generating major RIM events after the fact when none are showing at the time that they should be appearing as part of on-going weather systems.

Can someone explain why RIMpro in the MeteoBlue system seems to be changing the previously recorded history in the RIMpro Venturia table?
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Dave Rosenberger, Plant Pathologist,
Hudson Valley Lab, P.O. Box 727, Highland, NY 12528
    Cell:     845-594-3060
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