[GRASS-SVN] r64759 - grass/trunk/imagery/i.eb.soilheatflux

[svn_grass at osgeo.org]

Author: ychemin
Date: 2015-02-26 17:48:21 -0800 (Thu, 26 Feb 2015)
New Revision: 64759

Modified:
   grass/trunk/imagery/i.eb.soilheatflux/i.eb.soilheatflux.html
Log:
Added info on landsat time input processing

Modified: grass/trunk/imagery/i.eb.soilheatflux/i.eb.soilheatflux.html
===================================================================
--- grass/trunk/imagery/i.eb.soilheatflux/i.eb.soilheatflux.html	2015-02-26 22:23:23 UTC (rev 64758)
+++ grass/trunk/imagery/i.eb.soilheatflux/i.eb.soilheatflux.html	2015-02-27 01:48:21 UTC (rev 64759)
@@ -2,10 +2,12 @@
 
 <em>i.eb.soilheatflux</em> calculates the soil heat flux approximation (g0)
 after Bastiaanssen (1995). The main reference for implementation is Alexandridis, 2009.
+
 It takes input of Albedo, NDVI, Surface Skin temperature, Net Radiation (see 
-<em>r.sun</em>), time of satellite overpass, and a flag for the Roerink empirical
-modification from the HAPEX-Sahel experiment.
+<em>r.sun</em>), time of satellite overpass, and a flag for the Roerink empirical modification from the HAPEX-Sahel experiment.
 
+Time of satellite overpass is a MODIS sub dataset, and for Landsat can be computed by using a two steps method, 1) overpasstime=$(i.landsat.toar metfile=yourmetfile -p lsatmet=time) ; 2) r.mapcalc expression="time=$overpasstime"; after that the <em>time</em> map is available for processing in this module.
+
 <h2>SEE ALSO</h2>
 
 <em>
@@ -14,6 +16,7 @@
 <a href="i.emissivity.html">i.emissivity</a>,
 <a href="i.eb.hsebal01.html">i.eb.hsebal01</a>,
 <a href="i.eb.evapfr.html">i.eb.evapfr</a>
+<a href="i.landsat.toar.html">i.landsat.toar</a>
 </em>
 
 <h2>REFERENCES</h2>