[GRASS-SVN] r55781 - grass/trunk/imagery/i.evapo.pm
svn_grass at osgeo.org
svn_grass at osgeo.org
Sun Apr 14 02:21:18 PDT 2013
Author: neteler
Date: 2013-04-14 02:21:18 -0700 (Sun, 14 Apr 2013)
New Revision: 55781
Modified:
grass/trunk/imagery/i.evapo.pm/i.evapo.pm.html
Log:
HTML cosmetics
Modified: grass/trunk/imagery/i.evapo.pm/i.evapo.pm.html
===================================================================
--- grass/trunk/imagery/i.evapo.pm/i.evapo.pm.html 2013-04-14 09:10:17 UTC (rev 55780)
+++ grass/trunk/imagery/i.evapo.pm/i.evapo.pm.html 2013-04-14 09:21:18 UTC (rev 55781)
@@ -14,47 +14,54 @@
<p>The algorithm implements well known approaches: the hourly Penman-Monteith method as presented in Allen et al. (1998) for land surfaces and the Penman method (Penman, 1948) for water surfaces.<br>
-<p>Land and water surfaces are idenfyied by Vh:<br>
-- where Vh gt 0 vegetation is present and evapotranspiration is calculated;<br>
-- where Vh = 0 bare ground is present and evapotranspiration is calculated;<br>
-- where Vh lt 0 water surface is present and evaporation is calculated;<br>
+<p>Land and water surfaces are idenfyied by Vh:
+<ul>
+<li> where Vh gt 0 vegetation is present and evapotranspiration is calculated;
+<li> where Vh = 0 bare ground is present and evapotranspiration is calculated;
+<li> where Vh lt 0 water surface is present and evaporation is calculated.
+</ul>
<p>For more details on the algorithms see [1,2,3].
<h2>NOTES</h2>
<p>Net solar radiation map in MJ/(m2*h) can be computed from the combination of the r.sun ,
-run in mode 1, and the r.mapcalc commands.
+run in mode 1, and the <em>r.mapcalc</em> commands.
<p>The sum of the three radiation components outputted by r.sun (beam, diffuse, and reflected)
multiplied by the Wh to Mj conversion factor (0.0036) and optionally by a
clear sky factor [0-1] allows the generation of a map to be used as
-an NSR input for the <em>i.evapo.PM</em> command.<br>
-example:<br>
-<br>r.sun -s elevin=dem aspin=aspect slopein=slope lin=2 albedo=alb_Mar incidout=out beam_rad=beam diff_rad=diffuse refl_rad=reflected day=73 time=13:00 dist=100;
-<br>r.mapcalc 'NSR=0.0036*(beam+diffuse+reflected)';
+an NSR input for the <em>i.evapo.PM</em> command.
+<p>
+Example:
+<div class="code"><pre>
+r.sun -s elevin=dem aspin=aspect slopein=slope lin=2 albedo=alb_Mar \
+ incidout=out beam_rad=beam diff_rad=diffuse refl_rad=reflected \
+ day=73 time=13:00 dist=100;
+r.mapcalc "NSR = 0.0036 * (beam + diffuse + reflected)"
+</pre></div>
<h2>SEE ALSO</h2>
-<ul>
- <li>The <a href="http://istgis.ist.supsi.ch:8001/geomatica/">HydroFOSS</a>
-project at IST-SUPSI (Institute of Earth Sciences - University school of applied science for the Southern Switzerland)
-
- <li><a href=r.sun.html>r.sun</a>,
- <a href=r.mapcalc.html>r.mapcalc</a>
-</ul>
+The <a href="http://istgis.ist.supsi.ch:8001/geomatica/">HydroFOSS</a>
+project at IST-SUPSI (Institute of Earth Sciences - University school of
+applied science for the Southern Switzerland)
+<br>
+<em>
+<a href=r.sun.html>r.sun</a>,
+<a href=r.mapcalc.html>r.mapcalc</a>
+</em>
-
<h2>AUTHORS</h2>
- <p>Original version of program: The <a href="http://istgis.ist.supsi.ch:8001/geomatica/index.php?id=1">HydroFOSS</a> project, 2006, IST-SUPSI. (http://istgis.ist.supsi.ch:8001/geomatica/index.php?id=1)
- <i>
- <br>Massimiliano Cannata, Scuola Universitaria Professionale della Svizzera Italiana - Istituto Scienze della Terra
- <br>Maria A. Brovelli, Politecnico di Milano - Polo regionale di Como
- </i>
+<p>Original version of program: The <a href="http://istgis.ist.supsi.ch:8001/geomatica/index.php?id=1">HydroFOSS</a> project, 2006, IST-SUPSI. (http://istgis.ist.supsi.ch:8001/geomatica/index.php?id=1)
+<i>
+<br>Massimiliano Cannata, Scuola Universitaria Professionale della Svizzera Italiana - Istituto Scienze della Terra
+<br>Maria A. Brovelli, Politecnico di Milano - Polo regionale di Como
+</i>
- <p>Contact: <a href="mailto:massimiliano.cannata at supsi.ch"> Massimiliano Cannata</a>
+<p>Contact: <a href="mailto:massimiliano.cannata at supsi.ch">Massimiliano Cannata</a>
<h2>REFERENCES</h2>
@@ -69,4 +76,5 @@
<p>[3] Penman, H. L. 1948. Natural evaporation from open water,
bare soil and grass. Proc. Roy. Soc. London, A193, pp. 120-146.
-<p><i>Last changed: $Date$</i>
+<p>
+<i>Last changed: $Date$</i>
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