Add comments about units and datum.

1 files changed, 6 insertions, 4 deletions

diff --git a/templates/stations.html b/templates/stations.html
index 18ad2c5..b26aa94 100644
--- a/templates/stations.html
+++ b/templates/stations.html
@@ -11,15 +11,17 @@ th, td {
 </style>
 <h1>Entrance locations</h1>
 
-<p>This table is of all the survex stations in troggle: i.e. only those survey stations which have been identified with an Entrance by manually editing the Entrance data.
+<p>This table is of all the survex stations in troggle: i.e. only those survey stations which have been identified with an Entrance by manually editing the Entrance data.</p>
 
 <p>The SRTM altitude is that measured at a nearby reference point. 
 The horizontal distance between the survey station and the SRTM reference point is shown in the "SRTM ref" column. 
 It is always less than 35m for our dataset. Differences between the recorded altitude 
-and the SRTM altitude are in <b>bold</b> if the discrepancy is more than 60m vertically.
+and the SRTM altitude are in <b>bold</b> if the discrepancy is more than 60m vertically.</p>
+
+<p>Unless otherwise specified data is expressed in UTM in WGS84 datum. Coordinates are expresed in meters.</p>
 
 <table cellpadding="6" cellspacing="8">
-<tr><th>Survex Station</th><th>x</th><th>y</th><th>lat.</th><th>long.</th><th>alt</th><th>SRTM<br> alt</th><th>SRTM<br> ref</th><th>Used on <br />this Entrance</th><th>Cave</th></tr>
+<tr><th>Survex Station</th><th>x [m]</th><th>y [m]</th><th>lat. [deg]</th><th>long. [deg]</th><th>alt [m]</th><th>SRTM<br> alt</th><th>SRTM [m]<br> ref</th><th>Used on <br />this Entrance</th><th>Cave</th></tr>
 {% for s in stations %}
 <tr>
   <td style="text-align:left; " id="{{s.name|safe}}"> <a href="/entrances#{{s.name|safe}}">{{s.name|safe}}</a> </td>
@@ -110,4 +112,4 @@ Coordinate systems in Austria are explained in:<br>
 
 
 
-{% endblock %}
\ No newline at end of file
+{% endblock %}