[GRASS-SVN] r66820 - grass/branches/releasebranch_7_0/imagery/i.atcorr
svn_grass at osgeo.org
svn_grass at osgeo.org
Thu Nov 12 06:44:10 PST 2015
Author: lucadelu
Date: 2015-11-12 06:44:10 -0800 (Thu, 12 Nov 2015)
New Revision: 66820
Modified:
grass/branches/releasebranch_7_0/imagery/i.atcorr/i.atcorr.html
Log:
i.atcorr: removed -o flag from documentation
Modified: grass/branches/releasebranch_7_0/imagery/i.atcorr/i.atcorr.html
===================================================================
--- grass/branches/releasebranch_7_0/imagery/i.atcorr/i.atcorr.html 2015-11-12 14:38:22 UTC (rev 66819)
+++ grass/branches/releasebranch_7_0/imagery/i.atcorr/i.atcorr.html 2015-11-12 14:44:10 UTC (rev 66820)
@@ -11,10 +11,7 @@
to cover the input raster map before the atmospheric correction is
performed. The previous settings are restored afterwards.
-<p>Because using a <b>elevation</b> and/or <b>visibility</b>
-raster map makes execution time much longer, it is advised to use
-the optimization flag <b>-o</b>.
-This flag tells <em>i.atcorr</em> to try and speedup calculations.
+This flag tells <em>i.atcorr</em> to try and speedup calculations.
However, this option will increase memory requirements.
<p>If flag <b>-r</b> is used, the input raster data are treated as
@@ -38,7 +35,7 @@
64 - 4th band of ETM+ Landsat 7
</pre></div>
-If the position is not available in longitude-latitude (WGS84), the
+If the position is not available in longitude-latitude (WGS84), the
<em><a href="m.proj.html">m.proj</a></em> conversion module can be
used to reproject from a different projection.
@@ -701,10 +698,9 @@
64 - 4th band of ETM+ Landsat 7
</pre></div>
-Finally, run the atmospheric correction (-r for reflectance input map; -a for date >July 2000;
--o to use cache acceleration):
+Finally, run the atmospheric correction (-r for reflectance input map; -a for date >July 2000):
<div class="code"><pre>
-i.atcorr -r -a -o lsat7_2002_40_rad elev=elevation parameters=icnd_lsat4.txt output=lsat7_2002_40_atcorr
+i.atcorr -r -a lsat7_2002_40_rad elev=elevation parameters=icnd_lsat4.txt output=lsat7_2002_40_atcorr
</pre></div>
Note that the altitude value from 'icnd_lsat4.txt' file is read at the beginning
@@ -715,13 +711,13 @@
Note also, that <em>i.atcorr</em> reports solar elevation angle above horizon rather than solar zenith angle.
<h2>REMAINING DOCUMENTATION ISSUES</h2>
-1. The influence and importance of the visibility value or map should be
-explained, also how to obtain an estimate for either visibility or aerosol
+1. The influence and importance of the visibility value or map should be
+explained, also how to obtain an estimate for either visibility or aerosol
optical depth at 550nm.
<h2>SEE ALSO</h2>
-GRASS Wiki page about
+GRASS Wiki page about
<a href="http://grasswiki.osgeo.org/wiki/Atmospheric_correction">Atmospheric correction</a>
<p><em>
<a href="r.info.html">r.info</a>,
@@ -736,13 +732,13 @@
Second simulation of the satellite signal in the solar spectrum, 6S: An
overview., IEEE Trans. Geosc. and Remote Sens. 35(3):675-686.
<!-- too new:
-<li> <a href="http://6s.ltdri.org/6S_code2_thinner_stuff/6S_ltdri_org_manual.htm">6S manual
+<li> <a href="http://6s.ltdri.org/6S_code2_thinner_stuff/6S_ltdri_org_manual.htm">6S manual
(new vector version; i.atcorr is based on the older scalar version)</a>
at the <a href="http://6s.ltdri.org">6S homepage</a> of the Land Surface Reflectance
Science Computing Facility
-->
-<li> 6S Manual: <a href="http://www.rsgis.ait.ac.th/~honda/textbooks/advrs/6smanv2.0_P1.pdf">PDF1</a>,
- <a href="http://www.rsgis.ait.ac.th/~honda/textbooks/advrs/6smanv2.0_P2.pdf">PDF2</a>,
+<li> 6S Manual: <a href="http://www.rsgis.ait.ac.th/~honda/textbooks/advrs/6smanv2.0_P1.pdf">PDF1</a>,
+ <a href="http://www.rsgis.ait.ac.th/~honda/textbooks/advrs/6smanv2.0_P2.pdf">PDF2</a>,
and <a href="http://www.rsgis.ait.ac.th/~honda/textbooks/advrs/6smanv2.0_P3.pdf">PDF3</a>
<li>RapidEye sensors have been provided by <a href="http://www.rapideye.com/">RapidEye AG, Germany</a>
<li> Julia A. Barsi, Brian L. Markham and Jeffrey A. Pedelty "The operational land imager: spectral response and spectral uniformity", Proc. SPIE 8153, 81530G (2011); doi:10.1117/12.895438
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