<div dir="ltr">Hi Anna,<div><br></div><div>Thanks for your help. At first I thought it was from Liang's paper. However, after comparing the equations/parameters, it seems only the one for ASTER was adopted from this paper. The others (i.e. LANDSAT, MODIS, AVHRR ) are from other sources, but not mentioned in the <span style="font-family:arial,sans-serif;font-size:12.571428298950195px">manual</span>.</div>
<div><br></div><div>Could anybody give some help finding the sources please?</div><div><br></div><div>Thank you.</div><div><br></div><div>Best,</div><div>Jiao</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Thu, Dec 26, 2013 at 6:04 PM, Anna Petrášová <span dir="ltr"><<a href="mailto:kratochanna@gmail.com" target="_blank">kratochanna@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">Hi,<div><br></div><div>according to</div><div><a href="http://trac.osgeo.org/grass/browser/grass/trunk/imagery/i.albedo/bb_alb_aster.c" target="_blank">http://trac.osgeo.org/grass/browser/grass/trunk/imagery/i.albedo/bb_alb_aster.c</a></div>
<div><br></div><div>it's this one:</div><div><a href="http://terpconnect.umd.edu/~sliang/papers/RSE.N2B.1.pdf" target="_blank">http://terpconnect.umd.edu/~sliang/papers/RSE.N2B.1.pdf</a></div><div><br></div><div>I wonder if there is any reason it's not in the manual page.</div>
<div><br></div><div>Anna<br><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">On Thu, Dec 26, 2013 at 10:21 PM, Jiao Wang <span dir="ltr"><<a href="mailto:jiao@hawaii.edu" target="_blank">jiao@hawaii.edu</a>></span> wrote:<br>
</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><div class="h5"><div dir="ltr">Hi <div><br>
</div><div>I was wondering if anybody could help me find the reference paper used in the equation for MODIS albedo (see below), not necessary the full paper, even the title would help.</div>
<div>
Thanks in advance.</div><div><br></div><div>Best,</div><div>Jiao</div><div><br></div><div><br></div><div><a href="https://svn.osgeo.org/grass/grass/trunk/imagery/i.albedo/bb_alb_modis.c" target="_blank">https://svn.osgeo.org/grass/grass/trunk/imagery/i.albedo/bb_alb_modis.c</a><br>
</div><div><span style="white-space:pre-wrap">/* </span><br></div><div><pre style="white-space:pre-wrap;word-wrap:break-word"> * Broadband albedo MODIS
*/
double bb_alb_modis(double redchan, double nirchan, double chan3,
double chan4, double chan5, double chan6, double chan7)
{
double result;
result =
(0.22831 * redchan + 0.15982 * nirchan +
0.09132 * (chan3 + chan4 + chan5) + 0.10959 * chan6 +
0.22831 * chan7);
return result;
}</pre></div></div>
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