The variation throughout the year is fairly minimal and I don’t believe it is statistically relevant to worry about the data collection month.
Henry From: Therion [mailto:therion-boun...@speleo.sk] On Behalf Of Martin KERN via Therion Sent: 02 March 2018 16:22 To: Ladislav Blažek <ladis...@lblazek.cz> Cc: Martin KERN <martin.dehauten...@gmail.com>; List for Therion users <therion@speleo.sk> Subject: Re: [Therion] Magnetic declination Thanks for your reply Ladislav. I know that but the automatic declination is calculated for the first januray of the year which is enter, not for the exact date. It's not a probleme for the accuracy of the survey ? Martin K. Le 2 mars 2018 17:05, "Ladislav Blažek" <ladis...@lblazek.cz<mailto:ladis...@lblazek.cz>> a écrit : Hi, declination should be calculated automatically based on the survey date. Declination parameter is for manual correction. \LB 2. 3. 2018 v 16:29, Martin KERN via Therion <therion@speleo.sk<mailto:therion@speleo.sk>>: Quick question concerning the magnetic declination. How you indicate it? Just by entering the date or with the command <declination>? Because when I just specify the date, the declination which is calculate is for the first January, even if I specify another month in the centreline (e.g. 28.08.2017). Consequently, centreline is slightly offset that if I enter the real declination for the date. I don’t know if this shift is important for survey accuracy or if I can ignore it ? Thanks and sorry for all my questions. Martin K. _______________________________________________ Therion mailing list Therion@speleo.sk<mailto:Therion@speleo.sk> https://mailman.speleo.sk/listinfo/therion Dell Corporation Limited is registered in England and Wales. Company Registration Number: 2081369 Registered address: Dell House, The Boulevard, Cain Road, Bracknell, Berkshire, RG12 1LF, UK. Company details for other Dell UK entities can be found on www.dell.co.uk.
_______________________________________________ Therion mailing list Therion@speleo.sk https://mailman.speleo.sk/listinfo/therion
