-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sat, 13 Mar 2021 22:20:03 -0800 (PST) "hesf...@gmail.com" <hesfr...@gmail.com> wrote:
> Why is the calculation only shown for one month, although the > calculation on 01.01. begins. I'm glad you asked. In terms of cumulative Growing Degree-Days, detail is important. Decisions about when to spray chemicals, for example, are made day-to-day. Five days spans the time between "too early" and too late." If the chart is too wide, the time detail and the difference between starting cumulative GDD and ending is not so obvious, so the chart is only 28 days wide. For the sake of the model the accumulation, however, must begin on the "start date," whenever that is, even though it may be farther than 28 days in the past. You can try making the "time_length" for the "four-week_images" longer, but this probably will cause the x-axis limits to snap to month boundaries. You will lose the daily granularity of the 28-day charts. You can change the same time constant (2419200 seconds) in the $SKIN_ROOT/Phenology/cumulative_growing_degree_days.html.tmpl to print a longer history, too. - -- .. Be Seeing You, .. Chuck Rhode, Sheboygan, WI, USA .. Weather: http://LacusVeris.com/WX .. 31° — Wind NE 18 mph -----BEGIN PGP SIGNATURE----- iF0EARECAB0WIQT+MY/5I/LMPSswTbVg2/xipKOWUgUCYE69pQAKCRBg2/xipKOW UljKAJ4/OSdcstp/ZcaT/uLlOUVwAIHqUgCfW72U4J5tlKSak79jmfiNhKE+wVc= =qi4A -----END PGP SIGNATURE----- -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/20210314205133.11ec1aeb%40wealthy.
