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Monthly log files: Difference between revisions
→Correcting any data problems
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For more information on these files see in the Cumulus help file, in the section “Data log file format”.
==Correcting any data problems==
See [[FAQ#I.E2.80.99ve_just_installed_Cumulus.2C_and_it_didn.E2.80.99t_download_all_the_old_data_from_my_weather_station|FAQ: I've just installed Cumulus and it didn't download all the old data from my weather station]], [[FAQ#How_do_I_correct_my_all-time_.28or_monthly.29_records.3F|FAQ: How do I correct my all-time or monthly records]] and [[FAQ#I_can.E2.80.99t_find_my_data_files.21|FAQ: I can't find my data files]].
'''After you have edited (or created any missing) Monthly log files, you can:'''
Times in these files are in the form hh:mm using the 24 hour clock and local time (system time). Note that the fields related to solar data will only contain valid data if your station has the appropriate sensor(s).
Apart from bearings (stored as integers), most value fields are in format x.y using your system decimal notation. See [[Monthly_log_files#Example_lines_from_the_file|Monthly log files: Example lines from the file]].
===Importing pre-Cumulus data===
Given that monthly log files are used as input for '''updating the all-time, all-monthly (from version 1.9.3), and this year record extremes''', for '''creating missing dayfile.txt entries''', and for '''creating NOAA style reports''', you may have some information for a period before you first starting using Cumulus that you want to include.
There are some postings in the support Forum about importing past data, and it is too wide a subject to fully cover here.
Essentially match the fields listed in [[Monthly_log_files#List_of_fields_in_the_file|Monthly log files: List of fields in the file]] below with the fields you have available in your source.
There are some issues to consider. For example, wind directions might be reported as cardinal points (north, south etc) and need converting to bearings in degrees (spreadsheet packages provide ''look up'' functionality to do such conversions), and dates and times might need some pre-processing (spreadsheet packages usually have ability to select part of a text string and to cocatenate a number of strings) to convert them to text in the formats mentioned above.
Cumulus has various wind speed, temperature, and rainfall related fields, not directly available from for example ''EasyWeather'' outputs. See [[FAQ#What_do_the_various_wind_speeds_in_Cumulus_correspond_to.2C_with_Fine_Offset_stations.3F|FAQ: What do the various wind speeds in Cumulus correspond to with Fine Offset stations]] and other answers in the FAQ to pursue this or visit the support Forum for assistance.
The date that Cumulus first started operating, does ''not'' need to be updated for Cumulus to recognise earlier monthly log files in its ''data'' subfolder. However, the web tag associated with that date is on the default Cumulus ''recordsT.htm'' template, and you might want to amend the associated label wording to indicate it is the date that full Cumulus parameter logging/calculation began, rather than the date the station began operating.
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