Originally Posted by
Sy Reene
Wow, quite an endeavor! I'm troubled or confused by the ride data to vs from the hill.
The ride to the hill is -135m? The ride back home from the hill therefore should be +135m? Or you have no idea which of any of these figures is correct? The troubling part is evidently depending on what you look at the range is from 92m to 196m?
Also curious, did you ever also try Garmin's elevation correction available by enabling in Connect?
Garmin reports Total Ascent and Total Descent at the end of a ride. For a round trip these two numbers should be equal.
As we are talking about cumulative elevation gains the Total Ascent should never be a negative number. The ride to the hill has 135m of Total Ascent even though I start at 85m elevation and end at 24m. Because there are a lot of hills between those two points the elevation gains going up the hills adds up to give the Total Ascent. If there was a straight road between the start and end points then the Total Ascent would have been zero.
The ride back home has a total of 196m elevation gains. In theory, the Total Descent for the ride to the hill should equal the Total Ascent (196m) for the ride back home. Likewise, the Total Ascent (135m) for the ride to the hill should equal the Total Descent for the ride back home.
I don't use Garmin Connect (I'm not that bored) so can't tell you about their elevation correction methods.