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<p style="margin: 0 0 1em 0; color: black;">I mapped dry streams. Can
someone experienced check my work yesterday? I also saw waterways in areas
where no water could run, as in forests or over land without any waterway.
I also questioned some paths could be wsterways. Good to check Newbie work!<br>
Username: MingyurPema. <br></p>
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<p
style="color: black; font-size: 10pt; font-family: Arial, sans-serif; margin: 10pt 0;">On
May 3, 2015 9:01:14 PM Prabhas Pokharel <prabhas.pokharel@gmail.com>
wrote:</p>
<blockquote type="cite" class="gmail_quote"
style="margin: 0 0 0 0.75ex; border-left: 1px solid #808080; padding-left: 0.75ex;"><div
dir="ltr"><div class="gmail_default"
style="font-family:tahoma,sans-serif"><br></div><div
class="gmail_extra"><br><div class="gmail_quote">On Mon, May 4, 2015 at
9:33 AM, Pat Tressel <span dir="ltr"><<a href="mailto:ptressel@myuw.net"
target="_blank">ptressel@myuw.net</a>></span> wrote:<br><blockquote
class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div
dir="ltr"><div><div><div><div><div>;-)<br><br></div>I'm seeing some
rivers mapped in areas that didn't have high-res imagery, that (in the
DG imagery) cross over dry land, or through areas were tree tops are
visible against a dark background that could be either water or shadow --
it's a dark gray-purple. What I'm interpreting as the actual river
channel is more turquoise and has (what look like) white rapids. The
imagery has no clouds, and land looks fairly dry, so this imagery may,
perhaps, be dry season.<br><br></div><div>Note the previously mapped rivers
in this area are very rough -- points are far apart -- which implies they
were mapped from low-res imagery.<br></div><div><br></div>Some
questions:<br><br></div>Is there a large change in water volume in rivers
during the dry season? I'm wondering if water recedes to the deepest
channel, and does show more whitewater
then.<br></div></div></div></blockquote><div><br></div><div><div
class="gmail_default" style="font-family:tahoma,sans-serif">Yes, changes in
water volumes between wet and dry season can be immense in Nepal. Some
stream beds may also go dry in the dry season.</div><div
class="gmail_default" style="font-family:tahoma,sans-serif">I would guess
that some mountain streams may behave as you suggested, but generally, my
expectation would be for more whitewater in the wet
season.</div><br></div><div> </div><blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div
dir="ltr"><div><div><br></div>Do trees grow in standing water (deep enough
to appear dark) in Nepal? That's not unheard of -- it's true in
the Everglades in Florida. Or is an area with treetops and dark between
more likely dry but
shadowed?<br></div></div></blockquote><div><br></div><div><div
class="gmail_default" style="font-family:tahoma,sans-serif">Generally, most
of the water in Nepal flows fast (we have lots of elevation changes), and
there are very rarely trees growing in standing/moving water as in
Florida.</div><div class="gmail_default"
style="font-family:tahoma,sans-serif">I don't understand your second
question.</div><br></div><div><br></div><blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div
dir="ltr"><div><br></div><div>Thanks!<span class=""><font
color="#888888"><br></font></span></div><span class=""><font
color="#888888"><div><br></div>-- Pat<br></font></span></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div
class="gmail_signature"><div dir="ltr">Prabhas Pokharel<div><a
href="http://prabhasp.com"
target="_blank">http://prabhasp.com</a><br>twitter/skype/facebook/whatever:
prabhasp<br></div></div></div>
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