For me that's very interesting, for two reasons. After the Birken,
if weather is good, my Norwegian friends and I will likely spend
a few days at their `cabin'. It may be not too far from the area
of those maps. I should try to find out. The other reason is that
I have been experimanting with this Suunto x9i that I got recently.
It seems very good on the altimeter side, using barometric more
than the GPS, and quite good for skiing with the GPS. But skiing
reasonably fast in `spaghetti' ski areas (many small loops, lots
of direction changes) certainly gives it some problems. This is
a much smaller scale than your map which I guess is about 15 km
square (the trails part). Some of the problems are probably due
to trees and some to it just being purely a wris****ch thing, antenna
and all. But I imagine going along fairly fast on very twisty trails
would give any GPS a problem with producing an accurate map of
all the little loops.
I'm planning to turn it on at the Birken and see if my guess of about
1000m/3300ft in total elevation gain is nearly correct. My plan to
similarly test the Keskinada course in six days time has now been
somewhat foiled. The new course due to poor snow is still 53km,
but I'd guess more like 1800 than 2300 ft. total gain. I'll GPS/
elevation
profile it anyway. Both those consist mostly of
long straight sections, so the problem above shouldn't arise.
Best, Peter
On Feb 11, 3:27 am, Terje Mathisen
wrote:
Here's a map of the xc ski trail system around our mountain cabin in
Rauland, Telemark:
http://www.visitrauland.com/?p=73_94_LL&pr=73_290_2
Our cabin is located about 100 m from the major trail junction just
above the 'hotell' part of the two-line
'Rauland
Høgfjellshotell'
entry. :-)
Two+ days ago we had the last snowfall, so early that morning the track
setters started working. They have GPSs in all of them, linked up with
the data service of the GSM cell network, so you can follow their
progress in real time (more or less).
Here is the resulting trail map:
http://www.visitrauland.com/?p=73_94_MM&pr=73_94_104
The green track logs are from trails that have been set with a wide
machine, with classic track on the side(s) leaving plenty of room for
skating in the middle, while the yellow trails are about 2.5 m wide,
with just two classic tracks.
Terje
--
-
"almost all programming can be viewed as an exercise in caching"