I have read the “The TopoFusion Climbing Analysis Dialog” Help page. I have also searched the forums which I found helpful.
I do have a question about a elevation gain/loss relating to a recent track that I made out while hiking.
My question is… Why is the Straight GPS value so crazy? I hiked in the desert and my max elevation was 5748.
Here is what I get when I run the “Climbing Analysis”
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No DEM (elevation) data, use Download DEM Data button.
TopoFusion: 21401 ft
Straight GPS: 26365 ft
Straight DEM: 0 ft
Maptech: 0 ft
TopoUSA: 0 ft
Custom Algorithm: 21401 ft
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These values seem insane to me. I know my Garmin 60CSx barometric sensor was correctly calibrated recently, albeit not in the desert.
While, on the “Climbing Analysis Window” I clicked on “Download DEM Data for track”, then I made data source: DEM, and set minimum gain to:1 (meter) and here are the updated results:
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TopoFusion: 21401 ft
Straight GPS: 26365 ft
Straight DEM: 7209 ft
Maptech: 3074 ft
TopoUSA: 7209 ft
Custom Algorithm: 6675 ft
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This value of 6675 seems reasonable to me based on my experience for that day. I did those adjustments based on a recommendation of another forum member.
Here is a link to my data if someone wants to take a look and provide some help.
Link to my Track DataYou may need to do a "right-click save as" on the link.
Thanks,
Nick