Hi,
I'm still a bit puzzled when it comes to figure out correct elevation data. While I know this watch is not a a scientific tool and there are many factors in play but maybe I can get a better understanding.
Usually we get suspicious when my Garmin Instinct altimeter gives a much higher result compared to my partner's 735XT which calclulates based on topographic elevation data as far as I know.
So my data is:
Garmin original: 422 m
Garmin with elevation correction: 344 m (about the same as the map based value on the 735XT)
Garmin original exported and loaded to Locus map: 406 m
Garmin with elevation correction exported and loaded to Locus map: 387 m
Locus map own recording based on phone data: 467 m
Since my Locus map has elevation data I managed to check some random points of my hike and the best match was the corrected one (387).
This brings up questions :D
- how come two sets of map based elevation data (Garmin vs Locus) can be so off?
- as long as my path was recorded correctly, can I expect the map based elevation data to be correct?
- how can I counter the pressure changes caused by weather changes whil I'm on the move?
I always calibrate elevation when starting and the initial value is correct.
Any comments would be much appreciated.
Thanks.
