TEHCC Wiki:Trail Elevations - Revision history

Tim: remove confusing statement.

2019-12-07T12:19:44Z

remove confusing statement.

← Older revision		Revision as of 08:19, 7 December 2019
Line 1:		Line 1:
	'''Trail Lows and Highs''' are as simple as it sounds. If using a GPS points or tracks, having the points locked to USGS data is preferred to remove GPS error.		'''Trail Lows and Highs''' are as simple as it sounds. If using a GPS points or tracks, having the points locked to USGS data is preferred to remove GPS error.

	'''Trail elevations and elevation changes''' is trickier than one would initially believe. All sorts of factors can affect the calculation. For a detailed explanation of this difficulty you can visit the [http://www.gpsvisualizer.com/tutorials/elevation_gain.html GPS Visualizer website]. This can explain in detail these problems, but suffice to say there is a compounding of GPS accuracy and deciding what constitutes an elevation gain~~. (is walking a trail with 100 ten foot ups-and-downs the same as walking the same distance but ending 1,000' higher?)~~.		'''Trail elevations and elevation changes''' is trickier than one would initially believe. All sorts of factors can affect the calculation. For a detailed explanation of this difficulty you can visit the [http://www.gpsvisualizer.com/tutorials/elevation_gain.html GPS Visualizer website]. This can explain in detail these problems, but suffice to say there is a compounding of GPS accuracy and deciding what constitutes an elevation gain.

	This website is trying to "standardize" on using the calculations available on GPS Visualizer using the recommendations with a 10m gain threshold (~32.8') and 5m trackpoint distance threshold, while locking elevation data to USGS data. This is up for discussion and will need to compare with how others "feel" the trails are in terms of elevation changes.		This website is trying to "standardize" on using the calculations available on GPS Visualizer using the recommendations with a 10m gain threshold (~32.8') and 5m trackpoint distance threshold, while locking elevation data to USGS data. This is up for discussion and will need to compare with how others "feel" the trails are in terms of elevation changes.
Line 14:		Line 14:
	* Expand Advanced Options for Track/line options		* Expand Advanced Options for Track/line options
	* Add "Trackpoint distance threshold" of "5" - meters		* Add "Trackpoint distance threshold" of "5" - meters
	* Find your GPS track either locally or providing a link		* Find your GPS track either locally or providing a link (to this wiki)
	* Select "Draw the Profile"		* Select "Draw the Profile"
	* Collect the information and save the profile picture for adding to the trail page		* Collect the information and save the profile picture for adding to the trail page

Tim: change elevation data DEM

2018-12-23T04:28:48Z

change elevation data DEM

← Older revision		Revision as of 00:28, 23 December 2018
Line 9:		Line 9:
	Of all of the options, only a few are required for the desired output.		Of all of the options, only a few are required for the desired output.
	* Change Units to "U.S." - Note! inputs are still in meters		* Change Units to "U.S." - Note! inputs are still in meters
	* Change "Add DEM elevation data" to "~~USGS NED1 (30m res., North America)~~"		* Change "Add DEM elevation data" to "best available source"
	* Change "Calculate elevation gain" to "Yes"		* Change "Calculate elevation gain" to "Yes"
	* Add "Elev. gain threshold" of "10" - meters		* Add "Elev. gain threshold" of "10" - meters
	* Expand Advanced Options for Track/line options		* Expand Advanced Options for Track/line options
	* Add "Trackpoint distance threshold" of "5" - meters		* Add "Trackpoint distance threshold" of "5" - meters
	* Find your GPS track ~~data~~		* Find your GPS track either locally or providing a link
	* Select "Draw the Profile"		* Select "Draw the Profile"
	* Collect the information and save the profile picture for adding to the trail page		* Collect the information and save the profile picture for adding to the trail page

Tim: updating target settings

2018-12-07T21:49:24Z

updating target settings

← Older revision		Revision as of 17:49, 7 December 2018
Line 3:		Line 3:
	'''Trail elevations and elevation changes''' is trickier than one would initially believe. All sorts of factors can affect the calculation. For a detailed explanation of this difficulty you can visit the [http://www.gpsvisualizer.com/tutorials/elevation_gain.html GPS Visualizer website]. This can explain in detail these problems, but suffice to say there is a compounding of GPS accuracy and deciding what constitutes an elevation gain. (is walking a trail with 100 ten foot ups-and-downs the same as walking the same distance but ending 1,000' higher?).		'''Trail elevations and elevation changes''' is trickier than one would initially believe. All sorts of factors can affect the calculation. For a detailed explanation of this difficulty you can visit the [http://www.gpsvisualizer.com/tutorials/elevation_gain.html GPS Visualizer website]. This can explain in detail these problems, but suffice to say there is a compounding of GPS accuracy and deciding what constitutes an elevation gain. (is walking a trail with 100 ten foot ups-and-downs the same as walking the same distance but ending 1,000' higher?).

	This website is trying to "standardize" on using the calculations available on GPS Visualizer using the recommendations with a 10m gain threshold (~32.8') and ~~10m~~ trackpoint distance threshold, while locking elevation data to USGS data. This is up for discussion and will need to compare with how others "feel" the trails are in terms of elevation changes.		This website is trying to "standardize" on using the calculations available on GPS Visualizer using the recommendations with a 10m gain threshold (~32.8') and 5m trackpoint distance threshold, while locking elevation data to USGS data. This is up for discussion and will need to compare with how others "feel" the trails are in terms of elevation changes.

	To determine your trail elevation information, visit [http://www.gpsvisualizer.com/profile_input this page at GPS Visualizer]. You can upload a GPS track and have it calculate the min/max/gain/loss for your track as well as track distance. Obviously the gain/loss is direction important. This page will also generate a profile map that can be added to the trail page as well.		To determine your trail elevation information, visit [http://www.gpsvisualizer.com/profile_input this page at GPS Visualizer]. You can upload a GPS track and have it calculate the min/max/gain/loss for your track as well as track distance. Obviously the gain/loss is direction important. This page will also generate a profile map that can be added to the trail page as well.
Line 13:		Line 13:
	* Add "Elev. gain threshold" of "10" - meters		* Add "Elev. gain threshold" of "10" - meters
	* Expand Advanced Options for Track/line options		* Expand Advanced Options for Track/line options
	* Add "Trackpoint distance threshold" of "10" - meters		* Add "Trackpoint distance threshold" of "5" - meters
	* Find your GPS track data		* Find your GPS track data
	* Select "Draw the Profile"		* Select "Draw the Profile"
	* Collect the information and save the profile picture for adding to the trail page		* Collect the information and save the profile picture for adding to the trail page

Tim: Tim moved page ClubWIKI:Trail Elevations to TEHCC Wiki:Trail Elevations without leaving a redirect: Using standard namespace

2018-12-03T11:50:04Z

Tim moved page ClubWIKI:Trail Elevations to TEHCC Wiki:Trail Elevations without leaving a redirect: Using standard namespace

← Older revision	Revision as of 07:50, 3 December 2018
(No difference)

Tim: Created page with "'''Trail Lows and Highs''' are as simple as it sounds. If using a GPS points or tracks, having the points locked to USGS data is preferred to remove GPS error. '''Trail elev..."

2018-12-02T16:33:01Z

Created page with "'''Trail Lows and Highs''' are as simple as it sounds. If using a GPS points or tracks, having the points locked to USGS data is preferred to remove GPS error. '''Trail elev..."

New page

'''Trail Lows and Highs''' are as simple as it sounds. If using a GPS points or tracks, having the points locked to USGS data is preferred to remove GPS error.

'''Trail elevations and elevation changes''' is trickier than one would initially believe. All sorts of factors can affect the calculation. For a detailed explanation of this difficulty you can visit the [http://www.gpsvisualizer.com/tutorials/elevation_gain.html GPS Visualizer website]. This can explain in detail these problems, but suffice to say there is a compounding of GPS accuracy and deciding what constitutes an elevation gain. (is walking a trail with 100 ten foot ups-and-downs the same as walking the same distance but ending 1,000' higher?).

This website is trying to "standardize" on using the calculations available on GPS Visualizer using the recommendations with a 10m gain threshold (~32.8') and 10m trackpoint distance threshold, while locking elevation data to USGS data. This is up for discussion and will need to compare with how others "feel" the trails are in terms of elevation changes.

To determine your trail elevation information, visit [http://www.gpsvisualizer.com/profile_input this page at GPS Visualizer]. You can upload a GPS track and have it calculate the min/max/gain/loss for your track as well as track distance. Obviously the gain/loss is direction important. This page will also generate a profile map that can be added to the trail page as well.

Of all of the options, only a few are required for the desired output.
* Change Units to "U.S." - Note! inputs are still in meters
* Change "Add DEM elevation data" to "USGS NED1 (30m res., North America)"
* Change "Calculate elevation gain" to "Yes"
* Add "Elev. gain threshold" of "10" - meters
* Expand Advanced Options for Track/line options
* Add "Trackpoint distance threshold" of "10" - meters
* Find your GPS track data
* Select "Draw the Profile"
* Collect the information and save the profile picture for adding to the trail page