<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p><br>
</p>
<div class="moz-cite-prefix">On 29/3/23 14:30, Andrew Harvey wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAD5VjstJsiW810x-iXGCBOaQGxzOHM895rB-gPp20qA-5fuq6A@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">
<div dir="ltr"><br>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Wed, 29 Mar 2023 at
14:05, OSM via Talk-au <<a
href="mailto:talk-au@openstreetmap.org" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">talk-au@openstreetmap.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>
<p>Since the coastline tag is also supposed to represent
the high water mark then I would say that they should be
snapped together (since they then represent the same
feature - that is, the high water mark). This would mean
that the boundary data already in OSM from the
government basemaps would just be their own mapping of
the high water mark, and probably be less up to date or
refined as our own.</p>
</div>
</blockquote>
<div>Exactly. So if anything we should be actively snapping
them.</div>
</div>
</div>
</blockquote>
<p><br>
</p>
<p>In Victoria, from a very interesting document "<span style="left:
36.4%; top: 38.74%; font-size:
calc(var(--scale-factor)*32.04px); font-family: serif;"
role="presentation" dir="ltr">T</span><span style="left: 40.03%;
top: 39.33%; font-size: calc(var(--scale-factor)*25.56px);
font-family: serif; transform: scaleX(0.914257);"
role="presentation" dir="ltr">HE</span><span style="left:
46.33%; top: 39.33%; font-size:
calc(var(--scale-factor)*25.56px); font-family: serif;"
role="presentation" dir="ltr"> </span><span style="left:
48.18%; top: 38.74%; font-size:
calc(var(--scale-factor)*32.04px); font-family: serif;"
role="presentation" dir="ltr">C</span><span style="left: 52.4%;
top: 39.33%; font-size: calc(var(--scale-factor)*25.56px);
font-family: serif; transform: scaleX(1.02053);"
role="presentation" dir="ltr">OAST </span><span style="left:
26.18%; top: 43.69%; font-size:
calc(var(--scale-factor)*25.56px); font-family: serif;
transform: scaleX(0.97276);" role="presentation" dir="ltr">AND
THE</span><span style="left: 47.01%; top: 43.69%; font-size:
calc(var(--scale-factor)*25.56px); font-family: serif;"
role="presentation" dir="ltr"> </span><span style="left:
48.87%; top: 43.1%; font-size:
calc(var(--scale-factor)*32.04px); font-family: serif;"
role="presentation" dir="ltr">C</span><span style="left: 53.1%;
top: 43.69%; font-size: calc(var(--scale-factor)*25.56px);
font-family: serif; transform: scaleX(1.01916);"
role="presentation" dir="ltr">ADASTRE" </span><span
style="left: 37.55%; top: 53.5%; font-size:
calc(var(--scale-factor)*20.04px); font-family: serif;"
role="presentation" dir="ltr">A</span><span style="left: 39.8%;
top: 53.5%; font-size: calc(var(--scale-factor)*20.04px);
font-family: serif;" role="presentation" dir="ltr"> </span><span
style="left: 40.72%; top: 53.5%; font-size:
calc(var(--scale-factor)*20.04px); font-family: serif;
transform: scaleX(0.849182);" role="presentation" dir="ltr">Report
for the </span><span style="left: 15.97%; top: 56.25%;
font-size: calc(var(--scale-factor)*20.04px); font-family:
serif; transform: scaleX(0.868486);" role="presentation"
dir="ltr">Victorian Environmental Assessment Council </span><span
style="left: 40.92%; top: 61.4%; font-size:
calc(var(--scale-factor)*18.00px); font-family: serif;
transform: scaleX(0.872696);" role="presentation" dir="ltr">August
2019"</span></p>
<p><span style="left: 40.92%; top: 61.4%; font-size:
calc(var(--scale-factor)*18.00px); font-family: serif;
transform: scaleX(0.872696);" role="presentation" dir="ltr">Unfortunately
it is a PDF download only .. and I cannot get a direct link so
search for the above "Victoria the Coast and the Cadastre"</span></p>
<p>I quote from here on from the document, I do recommend reading
all of it if your interested in these 'ambulatory boundaries'. <br>
</p>
<p>---------------------<br>
</p>
<p><span style="left: 16.66%; top: 68.01%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif; transform:
scaleX(0.876398);" role="presentation" dir="ltr">Detail of the
plan defining Cape Conran Coastal Park</span><span style="left:
56.19%; top: 67.98%; font-size:
calc(var(--scale-factor)*6.48px); font-family: serif;"
role="presentation" dir="ltr">2</span><span style="left: 56.79%;
top: 68.01%; font-size: calc(var(--scale-factor)*9.96px);
font-family: serif;" role="presentation" dir="ltr">.</span><br
role="presentation">
<span style="left: 16.66%; top: 70.11%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif; transform:
scaleX(0.864242);" role="presentation" dir="ltr">The inland
boundary follows geometrically well-defined lines, and is fixed
in position.</span><br role="presentation">
<span style="left: 16.66%; top: 71.48%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif; transform:
scaleX(0.856585);" role="presentation" dir="ltr">North of the
inland boundary is freehold land.</span><br role="presentation">
<span style="left: 16.66%; top: 73.56%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif; transform:
scaleX(0.875659);" role="presentation" dir="ltr">The seaward
boundary of the Park is ‘Low Water Mark’ and hence is
ambulatory.</span><br role="presentation">
<span style="left: 16.66%; top: 74.91%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif; transform:
scaleX(0.874666);" role="presentation" dir="ltr">South of the
seaward boundary (</span><span style="left: 41.04%; top: 74.91%;
font-size: calc(var(--scale-factor)*9.96px); font-family: serif;
transform: scaleX(0.858166);" role="presentation" dir="ltr">i.e.</span><span
style="left: 43.26%; top: 74.91%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif;"
role="presentation" dir="ltr"> </span><span style="left:
43.74%; top: 74.91%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif; transform:
scaleX(0.871726);" role="presentation" dir="ltr">Bass Strait) is
unreserved Crown land.</span></p>
<p><span style="left: 43.74%; top: 74.91%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif; transform:
scaleX(0.871726);" role="presentation" dir="ltr"></span><span
style="left: 13.09%; top: 28.6%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.875799);" role="presentation" dir="ltr">Topographic
features may move, and ambulatory boundaries may move in
response </span><span style="left: 13.09%; top: 30.55%;
font-size: calc(var(--scale-factor)*11.04px); font-family:
serif; transform: scaleX(0.864578);" role="presentation"
dir="ltr">under the common law doctrine of accretion. The
doctrine is well established </span><span style="left: 13.09%;
top: 32.5%; font-size: calc(var(--scale-factor)*11.04px);
font-family: serif; transform: scaleX(0.861005);"
role="presentation" dir="ltr">internationally, but has resulted
in very little Australian case law, so we have come to </span><span
style="left: 13.09%; top: 34.45%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.867123);" role="presentation" dir="ltr">accept
Surveyor Generals’ rulings as being</span><span style="left:
48.35%; top: 34.45%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;"
role="presentation" dir="ltr"> </span><span style="left:
48.87%; top: 34.45%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.868306);" role="presentation" dir="ltr">de
facto</span><span style="left: 55.44%; top: 34.45%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;"
role="presentation" dir="ltr"> </span><span style="left:
55.97%; top: 34.45%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.880859);" role="presentation" dir="ltr">expressions
of the common law.</span></p>
<p><span style="left: 13.09%; top: 24.93%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.9084);" role="presentation" dir="ltr">The</span><span
style="left: 16.3%; top: 24.93%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;"
role="presentation" dir="ltr"> </span><span style="left: 16.8%;
top: 24.93%; font-size: calc(var(--scale-factor)*11.04px);
font-family: serif; transform: scaleX(0.870578);"
role="presentation" dir="ltr">Local Government Act 1989</span><span
style="left: 39.71%; top: 24.93%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.873799);" role="presentation" dir="ltr">,
section 3(3A) states:</span><br role="presentation">
<span style="left: 19.14%; top: 27.16%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.855737);" role="presentation" dir="ltr">“if
a boundary of a municipal district is described by reference to
the seacoast </span><span style="left: 19.14%; top: 28.65%;
font-size: calc(var(--scale-factor)*11.04px); font-family:
serif; transform: scaleX(0.861198);" role="presentation"
dir="ltr">(regardless of whether it is referred to as the Sea
shore or the waters of the sea </span><span style="left:
19.14%; top: 30.16%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.855162);" role="presentation" dir="ltr">or a
bay or in any other way) that boundary is to be taken to be the
line for the </span><span style="left: 19.14%; top: 31.66%;
font-size: calc(var(--scale-factor)*11.04px); font-family:
serif; transform: scaleX(0.859095);" role="presentation"
dir="ltr">time being of the Low Water Mark on that sea coast”</span><span
style="left: 61.98%; top: 31.66%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;"
role="presentation" dir="ltr">.</span></p>
<p><span style="left: 13.09%; top: 41.96%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.8771);" role="presentation" dir="ltr"> the
surveyed sea boundary is defined only at that date. The sea </span><span
style="left: 13.09%; top: 43.7%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.858801);" role="presentation" dir="ltr">boundary
is still subject to change due to gradual and imperceptible
movement.</span></p>
<p><span style="left: 13.09%; top: 41.47%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.851926);" role="presentation" dir="ltr">The
fundamental concepts <br>
</span></p>
<p><span style="left: 13.09%; top: 41.47%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.851926);" role="presentation" dir="ltr">(snip)</span></p>
<p><br role="presentation">
<span style="left: 14.28%; top: 47.37%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;"
role="presentation" dir="ltr">1</span><span style="left: 15.31%;
top: 47.37%; font-size: calc(var(--scale-factor)*11.04px);
font-family: serif;" role="presentation" dir="ltr"> </span><span
style="left: 19.04%; top: 47.37%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.861409);" role="presentation" dir="ltr">The
legal boundary between tidal waters and adjacent land is the
High Water </span><span style="left: 19.04%; top: 49.09%;
font-size: calc(var(--scale-factor)*11.04px); font-family:
serif; transform: scaleX(0.862665);" role="presentation"
dir="ltr">Mark (except where the sea boundary is otherwise
defined).</span><br role="presentation">
</p>
<p><span style="left: 13.09%; top: 41.47%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.851926);" role="presentation" dir="ltr">(snip)</span></p>
<p><br role="presentation">
<span style="left: 14.28%; top: 68.14%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;"
role="presentation" dir="ltr">6</span><span style="left: 15.31%;
top: 68.14%; font-size: calc(var(--scale-factor)*11.04px);
font-family: serif;" role="presentation" dir="ltr"> </span><span
style="left: 19.04%; top: 68.14%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.864397);" role="presentation" dir="ltr">Land
below high water mark (or other sea boundary) belongs to the
Crown....</span><span style="left: 13.09%; top: 41.47%;
font-size: calc(var(--scale-factor)*11.04px); font-family:
serif; transform: scaleX(0.851926);" role="presentation"
dir="ltr"></span><span style="left: 13.09%; top: 43.7%;
font-size: calc(var(--scale-factor)*11.04px); font-family:
serif; transform: scaleX(0.858801);" role="presentation"
dir="ltr"></span></p>
<p><span style="left: 13.09%; top: 43.7%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.858801);" role="presentation" dir="ltr">-------------------------</span></p>
<p><span style="left: 13.09%; top: 43.7%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.858801);" role="presentation" dir="ltr">There
are statements about; <br>
</span></p>
<p><span style="left: 13.09%; top: 43.7%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.858801);" role="presentation" dir="ltr">the
high water mark being used for both private and 'public' land</span></p>
<p><span style="left: 13.09%; top: 43.7%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.858801);" role="presentation" dir="ltr">the
'foreshore' being council land</span></p>
<p><span style="left: 13.09%; top: 43.7%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.858801);" role="presentation" dir="ltr">The
report suggest that climate change will make things difficult
and that the government should 'make changes'. My pessimism says
that they will make no changes until things get much worse. <br>
</span><span style="left: 61.98%; top: 31.66%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;"
role="presentation" dir="ltr"></span></p>
<p><span style="left: 61.98%; top: 31.66%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;"
role="presentation" dir="ltr"><br>
</span><span style="left: 55.97%; top: 34.45%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.880859);" role="presentation" dir="ltr"></span></p>
<p><span style="left: 55.97%; top: 34.45%; font-size:
calc(var(--scale-factor)*11.04px); font-family: serif;
transform: scaleX(0.880859);" role="presentation" dir="ltr"><br>
</span><span style="left: 43.74%; top: 74.91%; font-size:
calc(var(--scale-factor)*9.96px); font-family: serif; transform:
scaleX(0.871726);" role="presentation" dir="ltr"></span><span
style="left: 40.92%; top: 61.4%; font-size:
calc(var(--scale-factor)*18.00px); font-family: serif;
transform: scaleX(0.872696);" role="presentation" dir="ltr"></span></p>
</body>
</html>