Strava-Elevation

[gavgav]

Does anyone know why Strava totally changes it's elevation calculations for rides, usually down!! At the end of the ride today it was showing I had climbed 3033 ft and yet an hour later it showed 1693 ft??!!!! I could understand a slight alteration, but that much?!

 

[Supersuperleeds]

Strava takes at least a third of my elevation data away from me compared to what my GPS or ridewithgps says.

 

[gavgav]

Hmmmmm, think an e-mail to strava is in order to ask the question why!

 

[Pat "5mph"]

Hmmmmm, think an e-mail to strava is in order to ask the question why!

Bet the chap/ chapesses of the "silly Strava racing" thread know the answer

 

[cyberknight]

Bet the chap/ chapesses of the "silly Strava racing" thread know the answer

"Strava detects devices with barometric altimeters and recognizes the data from that source. Since elevation data derived from a GPS signal is fairly inaccurate, Strava automatically corrects elevation derived from a GPS source by consulting elevation databases to determine the elevation at each point in the activity. "

 

[gavgav]

"Strava detects devices with barometric altimeters and recognizes the data from that source. Since elevation data derived from a GPS signal is fairly inaccurate, Strava automatically corrects elevation derived from a GPS source by consulting elevation databases to determine the elevation at each point in the activity. "

Thanks @cyberknight

 

[Rasmus]

"Strava detects devices with barometric altimeters and recognizes the data from that source. Since elevation data derived from a GPS signal is fairly inaccurate, Strava automatically corrects elevation derived from a GPS source by consulting elevation databases to determine the elevation at each point in the activity. "

Anyone else find this approach silly? I'm fairly sure faulty barometric elevation data is the main source of all those annoying auto-generated phantom 4th cat segments - I don't think GPS elevation data can give this kind of glitch. I wish strava would just force topo map data correction for all rides.

 

[Kbrook]

I have the opposite problem, the elevation on my garmin at the end of the ride is roughly the same as my phone app, them when I download it adds at least a 1000ft on. When I use the " correct elevation" button it knocks at least 1500ft off. So I either get lots of Kudos or none.

 

[BSRU]

Garmin Connect has the same problem since an "upgrade" in February, it's so bad I've stopped using the elevation correction feature.

 

[Pat "5mph"]

"Strava detects devices with barometric altimeters and recognizes the data from that source. Since elevation data derived from a GPS signal is fairly inaccurate, Strava automatically corrects elevation derived from a GPS source by consulting elevation databases to determine the elevation at each point in the activity. "

Thanks

What? Did you actually understand the meaning of that? Chapeau

 

[BSRU]

What? Did you actually understand the meaning of that? Chapeau

I think it means, it uses the GPS co-ordinates to fetch the elevation data from a database.
Although the statement does contradict itself.

 

[cyberknight]

What? Did you actually understand the meaning of that? Chapeau

It works out how many cakes you have eaten based on how slow you went up the hill

 

[Pat "5mph"]

It works out how many cakes you have eaten based on how slow you went up the hill

Got it!

 

[Louch]

I corrected my strava segs for this year and lost 4000 ft off my ytd

 

[gavgav]

What? Did you actually understand the meaning of that? Chapeau

Nope!! I took it to mean that some chap looks it up in a book, as GPS is useless, and then adds it up on his fingers and makes lots of money from masquerading as an app!!