In calculating both daily and yearly rainfall totals for the software, the Weatherlink only checks the total rain register on the station. The Weatherlink compares the current total rain value to the previous total rain entry in the archive memory to determine the amount of rainfall which occurred during the interval.
These descriptions were taken from the "ReadMe" file included with the Davis Instruments, Weather Link software package. The descriptions have been modified to suit the specifics of our implementation.
When error correction is selected the search is against data that was checked by removing entries less than 0. This error correction was done to try and remove any instrumental anomalies from the data. Our error correction is automated and it should not be assumed that any data that was thrown out has been checked by human eyes. If you want the raw information returned from your search, turn off the error correction in the search options.