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<div><br></div><div><br></div><div><br></div><div>Nov 18, 2021, 09:16 by 61sundowner@gmail.com:<br></div><blockquote class="tutanota_quote" style="border-left: 1px solid #93A3B8; padding-left: 10px; margin-left: 5px;"><div><br></div><div>On 18/11/21 3:20 pm, Mateusz Konieczny via Tagging wrote:<br></div><blockquote><div><br></div><div>Australia government data has dried-out rivers present as still<br></div><div>flowing in official datasets.<br></div></blockquote><div><br></div><div><br></div><div>Australia has many 'rivers' that flow once every 5 to 10 years. They still 'exist' and can be seen even when dry.<br></div><div><br></div><div>Mapping them only when they flow would be foolish.<br></div><div><br></div><div><br></div><div>See https://en.wikipedia.org/wiki/Todd_River<br></div></blockquote><div dir="auto">It is case where my memory is worst of what I mentioned.<br></div><div dir="auto"><br></div><div dir="auto">But from what I remember the problem was about classifying ephemeral waterway,<br></div><div dir="auto">with water about once a decade as continuously flowing.<br></div><div dir="auto"><br></div><div dir="auto">And associated problem with supposedly permanently existing wetlands, <br></div><div dir="auto">where even describing them as ephemeral was dubious at best.<br></div> </body>
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