BB2134
: You Pays Your Money.....
Thursday
16th September 2021
.....
and you takes your choice.
Tech
warning. The secondary theme of this
report is about Global Positioning System
(GPS) satellite navigation units used on
our walks and might seem a bit tekkie. I
will try to keep that brief. Ish!
If
it's all a bit too much for you, you could
just say "Oh, it's the same as BB1017
so I have no need to read it, I'll just
look at the pictures."
You
wouldn't be far wrong in terms of route
but that was a somewhat different day when
we were all a lot younger. 11 years
younger in fact. Apart from Holly
who wasn't even born then.
The
objective, apart from having a good day
out in what might the last of the late summer
sunshine, was to finish off the Southern
Fells for this round of Wainwright bagging
for Stan and me. Plus to lower Robin's
(and Holly's) number of outstandings.
The
money to which the title refers partly to
the cost of the SatMap gps device that I
bought recently, only that was more like
"You takes your choice and pays your
money".
The
good news, moneywise, is that we didn't
have to pay to park at Seatoller in Borrowdale.
Or put another way, we had paid in
advance thanks to our National Trust memberships.
Target
number one was the intriguingly named Bessyboot,
less prosaically called Rosthwaite Fell.
"It is steep and uneventful, lightened only by the view back down Borrowdale toward Keswick and Skiddaw."
That
is what I said in 2010 and it remains true.
The summit however is satisfyingly
rocky and a great way to see Derwentwater.
After
passing The Tarn at Leaves (yes, that is
its proper name though it sounds more like
a pretentious restaurant) we continued on
towards the Glaramara summit. Great
Gable was peering ominously to the west
Stan
took the diretissimo rock climb (as per
BB1017).
Robin and I used Holly as the excuse
for a more roundabout route to the summit.
From our lofty viewpoint we watched
Stan's head pop up in the distance. Having
enjoyed his triumph to what he thought was
the top, he spotted us sat some distance
away and wandered over. He rather pooh-poohed
our suggestion that his climb had been unnecessary.
Shamed,
I decided that I too should visit the "other
place" albeit that from this side it
was still rocky but far less of a challenge.
Even so, Holly was very worried about
me. She sobbed and whimpered all the
time I was on the rocks, finally being allowed
to bound over to me once I was back on terra
not quite so firma.
I
knew it was only a short climb to Allen
Crags and it only took a few minutes.
Then
we realised it wasn't Allen Crags- that
lay some distance away and several hundred
feet higher. Having reached it, I
realised the "only a short climb"
was from the other side. Today it
was only a short descent to the Esk Hause
Junction.
There
had been fine views over the Langdales to
Windermere....
.....
and over Sprinkling Tarn to Great Gable.
Our
memories of BB1017,
or at least mine, were a bit vague
from hereon. Fortunately Stan has much better
recall. We needed to head round to
Sprinkling Tarn then turn right to make
our way over to Seathwaite Fell.
Then
I became still vaguer and even Stan needed
to think about how we were to descend 500
feet in a quarter of a mile. Of course,
he found a steep but safe way through the
crags down to Styhead Gill.
All
that was left to do was a long but pleasant
stroll down to Stockley Bridge and on to
Seathwaite followed by a long and increasingly
weary road slog back to Seatoller.
Beers
had been well and truly earned but sadly
it was now rather later in the day than
envisaged. Just time for a swifty
whilst sat outside the still grand Swiss
Lodore hotel. Robin and I made our
choices, Stan paid the money. Thank
you Stan.
So
what's all the "You pays your money"
technical bit about?
Well,
here it comes. I won't be offended
if you skip over the rest of this report.
I'd
Paid My Money.....
After
long deliberation I had paid
my money for my new GPS sat
nav device. The thing
that tells you where you are
and where you have been. I
chose the SatMap 20; somewhat
chunkier than the Garmin but
with larger and clearer screen.
Subsequently
I have been puzzled by the stats
shown for the height climbed.
That shown for today (and
last week) seemed remarkably
high. 4,137 feet? Come
on!
Firstly,
keep in mind that this was essentially
the same walk as BB1017
where the height recorded in
the report was 3,336 feet. This
had been derived by taking the
track of where we had been from
the Garmin, putting it into
Memory Map and letting it compute
the total height climbed.
In
those days whilst the GPS itself
could tell you a height, it
was based on air pressure not
map countours so the result
was not reliable, especially
in changing weather conditions.
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|
Using
mapping software was thought to be more
reliable, although different programs produced
somewhat, but not wildly, different results.
The
SatMap has the option to use air pressure
to give height climbed but also to use mapping
data which to my mind ought to be the more
accurate. What has surprised me is
that it is giving far greater heights climbed than
that shown when the log of where I have
been is put into the mapping software on
my PC.
I
have been back to the vendors, GPS Training
who are probably the UK's leading experts,
to ask them why. Their explanation
is that the height data used
by SatMap is from a fairly recent NASA survey.
They do find that discrepancies crop up on OS maps as some of the
OS height data can be
quite old and not always as accurate as we might think, hence we will always see
differences when compared with paper maps.
In
addition to using the SatMap to calculate
the height climbed, I have run its data
through two different mapping systems. GPS
training have also run it through two systems
that they use and Bryan has run it through
his two favourites.
Here
is the remarkable range of results for feet
climbed in today's outing:
3,204
|
3,475
|
3,805
|
4,035
|
4,114
|
4,137
|
4,642
|
I've
paid my money. Now you take your choice.
I know what mine is!
Don,
Thursday, 17th September 2021
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