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FAQ: Difference between revisions
→My station invented some rain today that didn't really occur, and I want to set it to zero: added example
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So, to set today's total to zero, stop Cumulus and look for the current value of the total rainfall counter on the last line of the current monthly log file, and set the Start= figure in the today.ini file to that value. '''Don't just set the Start figure to zero, that will give you a large total for today!''' You can set today's total to other values in a similar way; just set the Start= figure so that the difference between that and the current total rainfall counter is the total you want to achieve. You may also want to edit the "Total rainfall today so far" values for today in the monthly log file to correspond. | So, to set today's total to zero, stop Cumulus and look for the current value of the total rainfall counter on the last line of the current monthly log file, and set the Start= figure in the today.ini file to that value. '''Don't just set the Start figure to zero, that will give you a large total for today!''' You can set today's total to other values in a similar way; just set the Start= figure so that the difference between that and the current total rainfall counter is the total you want to achieve. You may also want to edit the "Total rainfall today so far" values for today in the monthly log file to correspond. | ||
'''Example:'''<br> | |||
My Start figure is '''43.2''' (ignore any superfluous digits; round to an appropriate number of decimal places) | |||
[Rain]<br> | |||
High=0<br> | |||
HTime=09:00<br> | |||
'''Start=43.2000007629395'''<br> | |||
Yesterday=0.400001525878906 | |||
On the last line of my jan10log.txt file, my 'total rainfall counter' is '''49.4''', and hence my 'total rainfall today so far' is '''6.2'''. | |||
19/01/10,17:20,6.8,89,5.1,25.4,35.2,159,0.0,'''6.2''',1020.56,'''49.4''',23.8,44,30.8,1.6,6.8 | |||
However, I know that it hasn't actually rained, and that 'rain' was caused by wind rocking the rain gauge, or electrical interference, or whatever. So, to set today's rain to zero, I set the Start figure equal to the total rainfall counter. (Another way of looking at it is: to remove the 6.2 units of rain, I add 6.2 to the Start figure): | |||
[Rain]<br> | |||
High=0<br> | |||
HTime=09:00<br> | |||
'''Start=49.4'''<br> | |||
Yesterday=0.400001525878906 | |||
and I set the total rain so far today to zero: | |||
19/01/10,17:20,6.8,89,5.1,25.4,35.2,159,0.0,'''0.0''',1020.56,'''49.4''',23.8,44,30.8,1.6,6.8 | |||
Note that I don't edit the 'total rainfall counter', it would achieve nothing, it's simply a record of the actual counter in the hardware. I would probably also edit all of the other entries for today in jan10log.txt to set their total rainfall today so far values to zero. | |||