diff --git a/handbook/survey/lasers.htm b/handbook/survey/lasers.htm index 65a3f0e80..8c65574f9 100644 --- a/handbook/survey/lasers.htm +++ b/handbook/survey/lasers.htm @@ -17,7 +17,8 @@ analysed the projection in 1822 and Krüger published formulae to translate to/from Lat/Long in 1912). In our area, this is UTM zone 31. At least, this was our belief, but we don't seem to be getting perfect agreement between UTM/31 figures from GPS and the G&K coordinates of fixed -points... This is probably because the bulk of Austria is in UTM zone 33. +points... This is probably because the bulk of Austria is in UTM zone 33 +which you will see if you use a GPS, which will give coordinates in zone 33T. Hmmmm.
Within this system, there are a number of triangulation points surveyed @@ -55,6 +56,12 @@ nearest Top Camp), which seems to be out by an angular error of 25 or 26° from the Nase point. In the table, point 14/16 is also noted as possibly being dodgy, but we have no real indication of why.
+Expo (and indeed, the kataster) has now moved over to using the same system as +the rest of the world, ie. UTM based on the WGS84 datum. So it is unfortunate that +the points in the table below haven't been translated (and neitehr, it seems have +the ones in the survex files). Various people at various times have located the points +with GPS, and those fixes I've found are also included here in UTM zone 33T form.
+point | Y (east) | X (north) | Altitude | where ? |
0/5 | 36005.96 | (52)82782.82 | 1690.70 | up gully and left from 107 tatty cloth replaced with alloy tag "LASER 0/5" 1998 |
0/6 | 35873.09 | (52)82944.29 | 1647.78 | Near 76 - between the three entrances. Very faded blue cloth replaced with alloy tag "LASER 0/6" in 2006 |
0/6 UTM 33T | 0410719 | 52821888 | 1652.14 | AERW's Oregon 300, 2015-08-03, GPS a foot above the tag |
0/7 | 35419.56 | (52)82237.16 | 1769.77 | Bräuning Nase |
7/8 | 36040.75 | (52)81522.72 | 1732.39 | Felskuppe im Bereich des Vd. Schwarzmooskogel (Weiße Warze, The Nipple, Bunter's Bulge) |