Originally Posted by
_ForceD_
I think that irregularities like this are due to glitches in the proprietary software of the fitness app. Here’s why I think that. Attached is the screenshot of the elevation profile from a run I did in 2019 along the beach at a resort in Punta Cana, D.R. And I mean I jogged right along the water’s edge so there were no hills. But, for the 4-mile jog along the water there’s a total of 1355 feet of elevation. You’ll notice that at a couple places on the profile it goes from ZERO feet elevation way down to more than negative 900 feet in the space of just a couple hundred yards. I did this particular run to see if it would mimic the same irregularity from the previous year…that unfortunately I didn’t notice until we’d returned home from the vacation. Sure enough…it made the same exact elevation plunge in the same exact place as it did the previous year. And I can assure you there wasn’t a “Grand Canyon” there on the beaches of the D.R. that I fell into. This activity was recorded with my iPhone using the Strava app. When I made this investigative run the second year, I also wore a Garmin GPS watch. When I looked at the elevation profile on the Garmin…there were no erratic elevation plunges, just normal elevation for a jog along the beach. So either there was/is some glitch in the Strava software, or software that Strava uses…or there is some sort of electromagnetic disturbance right at that particular spot that causes the cell phone’s GPS reception to go haywire. But then again it’s probably NOT that because ‘GPS reception is GPS reception’ regardless of the device. So it must be in a software algorithm.
FWIW…I have a friend currently living in the Pensacola, FL area. On one of his regular cycling routes he’s experiencing a similar occurrence. He’s riding along road adjacent to the waterfront. No bridges or overpasses. But at one point (same place every time) it shows him going up/down a hill of about 250 feet in the space of less than 100 yards.— Dan
It's the holes where they store the Pokemon.