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Thanks, Nikos<br>
<br>
<div class="moz-cite-prefix">On 23/05/15 11:04, Nikos Alexandris
wrote:<br>
</div>
<blockquote cite="mid:20150523080419.GA21536@tpx1c2g" type="cite">
<pre wrap="">* Micha Silver <a class="moz-txt-link-rfc2396E" href="mailto:micha@arava.co.il"><micha@arava.co.il></a> [2015-05-23 10:05:14 +0300]:
</pre>
<blockquote type="cite">
<pre wrap=""> When doing atmospheric correction with i.atcorr on LandSat 8 images (after
i.landsat.toar), is it correct to set range="0,65535"?RADIANCE_MAXIMUM_BAND_3
</pre>
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<pre wrap="">
Hi Micha.
After i.landsat.toar you will have either Radiance or Reflectance. For
both the 11-bit range suggested above is not valid I think.</pre>
</blockquote>
<br>
So, do I need to read the Min and Max radiance for each band
separately from the MTL file, and use those as the range= parameter?<br>
<br>
The default of "0,255" seems to be too small. I'm getting some
radiance values > 600 . And the values of RADIANCE_MAXIMUM_BAND_x
in the metadata seem to also show these high numbers.<br>
<br>
Best,<br>
Micha<br>
<br>
<blockquote cite="mid:20150523080419.GA21536@tpx1c2g" type="cite">
<pre wrap="">
In the metadata file the minimum and maximum values for spectral radiance are
reported (watts / m^2 * ster * microns). As for the reflectance, it is
unitless and should, in theory, range in [0, 1.0]. Though, outliers are
sometimes expected.
Nikos
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