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Hi,<br>
<br>
I also find streams useful to indicate the surrounding ground is
downhill towards them. Being at the bottom of a valley it is also
fairly obvious when you encounter one in person.<br>
<br>
They are often hard to map from aerial imagery as they may hidden by
tree cover. This is one reason why many are missing from OSM. Adding
more of them would be good.<br>
<br>
Regards,<br>
Kim<br>
<br>
<div class="moz-cite-prefix">On 26/5/23 13:54, Josh Marshall wrote:<br>
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I map streams on the regular. Given most of what I map is bike +
running single-track, streams are helpful as a clue to the local
topography.
<div><br>
</div>
<div>But I’ve also made relations for all of our local streams and
creeks; go to the Newcastle area and search for Ironbark or
Cottage Creek for instance… it used to just return a single hit
on one small section for almost every creek. My interest here is
because much of the area was uninhabitable swamp until there was
a huge effort to put in some monster drains in the 1890s. And
yet it will still occasionally flood and people complain about
council not doing anyway…
<div><br>
</div>
<div>Do note, the DCS map can be quite wrong in places… I’m
pretty sure a lot of it was done once and then never updated.</div>
<div><br>
</div>
<div>Arguably most streams in Australia are intermittent, I
don’t think the definition is totally locked down, but when
they are isolated sections of standing water in between rain,
that is intermittent in my mind. <br>
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<blockquote type="cite">On 26 May 2023, at 8:00 am, Graeme
Fitzpatrick <a class="moz-txt-link-rfc2396E" href="mailto:graemefitz1@gmail.com"><graemefitz1@gmail.com></a> wrote:<br>
<br>
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<br>
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<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Thu, 25 May 2023
at 22:26, Tom Brennan <<a
href="mailto:website@ozultimate.com"
moz-do-not-send="true"
class="moz-txt-link-freetext">website@ozultimate.com</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">I'm looking at
adding missing stream data in national parks around
Sydney.<br>
<br>
However, how much value is there in bringing in all
of the stream data <br>
in say the DCS Base Map vs just the named streams?<br>
<br>
I can see for example, the value in bringing in
named streams. But there <br>
are huge numbers of smaller (unnamed) streams.<br>
</blockquote>
<div><br>
</div>
<div>It's not a bad idea, as it would let anybody
needing water in the bush, know that there's a creek
over there, & also let you know that if you go
this way, you may get wet feet! :-)</div>
<div><br>
</div>
<div>But, do DCS Base & Topo differentiate between
permanent & intermittent creeks?</div>
<div><br>
</div>
<div>
<div>
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<div>
<div dir="ltr">Thanks
<div><br>
</div>
<div>Graeme</div>
</div>
</div>
</div>
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</div>
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<br>
</div>
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