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chrisale
Joined: 09 Nov 2005
Posts: 187
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 Posted: Tue Aug 29, 2006 9:59 pm Post subject: bad wind data when it's raining |
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OK... it's been a dry summer, so I'm going on scant data...
however, over the past 3 times that it has rained since June, I have gotten bogus wind data simultaneous with that rainfall. (I'm getting it right now)
I'm wondering if anyone has had a similar problem... I'm considering if I should perhaps backup the archive data and do some tests.
Just want to know if anyone here has had a similar problem first before I take the system offline. |
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chrisale
Joined: 09 Nov 2005
Posts: 187
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| Posted: Wed Sep 06, 2006 12:27 pm Post subject: |
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I've been looking at the txt archives of the data and have come across something interesting:
August 10, 2006 was the last time I had a bogus hi-wind value:
Yet, when I do a find in the text file for "200"... I come to the record at 18:00:
| Code: | --Timestamp--- Temp Chill HIndex Humid Dewpt Wind HiWind WindDir Rain Barom Solar ET UV
-------------- ---- ----- ------ ----- ----- ---- ------ ------- ---- ----- ----- -- --
20060810 16:25 28.3 28.3 27.3 30 9.1 16 24 202 0.00 1016.292 0 0.000 0
20060810 16:30 28.3 28.3 27.5 33 10.5 19 32 202 0.00 1016.427 0 0.000 0
20060810 16:35 27.7 27.7 27.1 35 10.8 19 32 225 0.00 1016.427 0 0.000 0
20060810 16:40 26.9 26.9 26.5 34 9.7 23 37 202 0.00 1016.427 0 0.000 0
20060810 16:45 26.8 26.8 26.5 34 9.6 21 32 202 0.00 1016.597 0 0.000 0
20060810 16:50 26.6 26.6 26.5 37 10.7 16 29 202 0.00 1016.597 0 0.000 0
20060810 16:55 27.3 27.3 26.9 37 11.3 13 23 202 0.00 1016.597 0 0.000 0
20060810 17:00 27.7 27.7 27.1 35 10.8 14 24 202 0.00 1016.698 0 0.000 0
20060810 17:05 27.7 27.7 27.1 35 10.8 13 23 180 0.00 1016.698 0 0.000 0
20060810 17:10 27.3 27.3 26.9 36 10.9 13 19 202 0.00 1016.698 0 0.000 0
20060810 17:15 26.9 26.9 26.7 37 11.0 13 23 180 0.00 1016.664 0 0.000 0
20060810 17:20 26.6 26.6 26.5 38 11.1 13 18 180 0.00 1016.664 0 0.000 0
20060810 17:25 26.2 26.2 26.3 39 11.2 10 14 180 0.00 1016.664 0 0.000 0
20060810 17:30 26.6 26.6 26.6 41 12.2 13 19 180 0.00 1016.664 0 0.000 0
20060810 17:35 26.8 26.8 26.7 39 11.7 8 14 202 0.00 1016.664 0 0.000 0
20060810 17:40 26.6 26.6 26.6 41 12.2 8 19 225 0.00 1016.664 0 0.000 0
20060810 17:45 24.1 24.1 25.4 50 13.0 10 19 292 0.00 1016.834 0 0.000 0
20060810 17:50 22.7 22.7 22.7 59 14.2 6 13 0 0.00 1016.834 0 0.000 0
20060810 17:55 22.3 22.3 22.3 57 13.3 5 11 45 0.00 1016.834 0 0.000 0
20060810 18:00 22.3 22.3 22.3 60 14.1 72 200 22 0.51 1016.935 0 0.000 0
20060810 18:05 22.5 22.5 22.5 64 15.3 93 180 90 0.25 1016.935 0 0.000 0 |
Notice in the sequence... there are points where the line of values is shorter than others... that indicates that a value is either missing, or not it's it's usual tab-delimited spot in the file.
This seems to correlate directly with when I get bogus wind data.
My bogus reading is at the very end there... at 18:00... so why did it take that value and not any of the other, higher values in the same column?
202, 225, are all in that same column but only the record for 18:00 was record as a hi-wind record.
I think one clue comes at 12:00
| Code: | 20060810 11:40 21.8 21.8 21.8 51 11.2 2 8 225 0.00 1018.222 0 0.000 0
20060810 11:45 21.6 21.6 21.6 49 10.4 0 3 225 0.00 1017.917 0 0.000 0
20060810 11:50 21.7 21.7 21.7 51 11.1 2 8 135 0.00 1017.917 0 0.000 0
20060810 11:55 21.8 21.8 21.8 50 10.9 2 8 225 0.00 1017.917 0 0.000 0
20060810 12:00 22.1 22.1 22.1 46 9.9 5 11 225 0.00 1017.816 0 0.000 0
20060810 12:05 22.2 22.2 22.2 46 10.0 3 8 292 0.00 1017.816 0 0.000 0
20060810 12:10 22.3 22.3 22.3 47 10.4 2 8 135 0.00 1017.816 0 0.000 0
20060810 12:15 22.4 22.4 22.4 45 9.9 5 11 225 0.00 1017.748 0 0.000 0
20060810 12:20 22.6 22.6 22.6 44 9.7 3 6 67 0.00 1017.748 0 0.000 0
20060810 12:25 22.9 22.9 22.9 40 8.6 3 10 225 0.00 1017.748 0 0.000 0
20060810 12:30 22.7 22.7 22.7 44 9.8 2 8 292 0.00 1017.579 0 0.000 0
20060810 12:35 22.9 22.9 22.9 39 8.2 5 8 180 0.00 1017.579 0 0.000 0
20060810 12:40 23.4 23.4 23.4 42 9.8 3 8 225 0.00 1017.579 0 0.000 0
20060810 12:45 23.7 23.7 23.7 38 8.5 5 10 225 0.00 1017.376 0 0.000 0
20060810 12:50 24.1 24.1 25.3 37 8.4 6 10 225 0.00 1017.376 0 0.000 0
20060810 12:55 24.4 24.4 25.4 38 9.2 6 14 202 0.00 1017.376 0 0.000 0
20060810 13:00 24.7 24.7 25.6 40 10.2 11 16 225 0.00 1017.308 0 0.000 0
20060810 13:05 24.8 24.8 25.6 39 9.9 10 14 202 0.00 1017.308 0 0.000 0
20060810 13:10 24.9 24.9 25.6 38 9.6 6 11 202 0.00 1017.308 0 0.000 0
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Notice the line of data has shrunk?
There seems to be only a space, rather than a tab, between the dewpoint measurement and the wind value.
Could this be messing up the archive... is it the vantage or wview? That is the question 
Anyway, I'm going to work some more on it.
check back soon.
EDIT: You know what... looking at it in the post... it looks different than it is in my textfile, as if the BBCode is detecting the tabsm but my text editor isn't sometimes...
weird... I'll be back.
Chris |
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bhnb
Joined: 28 Nov 2005
Posts: 127
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| Posted: Thu Sep 07, 2006 1:40 am Post subject: |
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Hey Chris, this is a bit of a puzzler.
I reckon you were on the right track initially, correlating it with rainfall rather than field widths, as there are the same number of fields in each line regardless of how they are delimited.
Looking at it in table form, don't you think the reported high wind values look suspiciously like wind directions? |
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chrisale
Joined: 09 Nov 2005
Posts: 187
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| Posted: Fri Sep 08, 2006 7:40 pm Post subject: |
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It's raining...
so it's doing it again:
here's the bogus data
| Code: |
--Timestamp--- Temp Chill HIndex Humid Dewpt Wind HiWind WindDir Rain Barom Solar ET UV
-------------- ---- ----- ------ ----- ----- ---- ------ ------- ---- ----- ----- -- --
20060908 17:05 18.5 18.5 18.5 73 13.6 13 21 202 0.00 1009.959 0 0.000 0
20060908 17:10 18.1 18.1 18.1 76 13.8 11 18 202 0.00 1009.959 0 0.000 0
20060908 17:15 17.6 17.6 17.6 76 13.3 111 200 202 0.25 1010.027 0 0.000 0
20060908 17:20 17.3 17.3 17.3 78 13.4 172 200 0 0.00 1010.027 0 0.000 0
20060908 17:25 17.0 17.0 17.0 80 13.5 174 180 225 0.25 1010.027 0 0.000 0
20060908 17:30 16.7 16.7 16.7 81 13.4 174 182 225 0.00 1010.163 0 0.000 0
20060908 17:35 16.4 16.4 16.4 81 13.2 35 180 180 0.25 1010.163 0 0.000 0
20060908 17:40 16.3 16.3 16.3 81 13.0 14 24 225 0.00
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So now I'm getting a bogus high-wind value of 200... but it seems to have reset itself when the wind direction hit 180 again.
And here's the last time it did it, again, when there was rain was last registered on August 10.
| Code: |
--Timestamp--- Temp Chill HIndex Humid Dewpt Wind HiWind WindDir Rain Barom Solar ET UV
-------------- ---- ----- ------ ----- ----- ---- ------ ------- ---- ----- ----- -- --
20060810 17:50 22.7 22.7 22.7 59 14.2 6 13 0 0.00 1016.834 0 0.000 0
20060810 17:55 22.3 22.3 22.3 57 13.3 5 11 45 0.00 1016.834 0 0.000 0
20060810 18:00 22.3 22.3 22.3 60 14.1 72 200 22 0.51 1016.935 0 0.000 0
20060810 18:05 22.5 22.5 22.5 64 15.3 93 180 90 0.25 1016.935 0 0.000 0
20060810 18:10 22.4 22.4 22.4 59 14.0 0 3 90 0.00 1016.935 0 0.000 0
20060810 18:15 22.5 22.5 22.5 61 14.6 5 13 180 0.00
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bhnb
Joined: 28 Nov 2005
Posts: 127
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