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@@ -14,47 +14,54 @@ and the appropriate soil heat flux is calculated.
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<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>
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-<p>Land and water surfaces are idenfyied by Vh:<br>
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-- where Vh gt 0 vegetation is present and evapotranspiration is calculated;<br>
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-- where Vh = 0 bare ground is present and evapotranspiration is calculated;<br>
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-- where Vh lt 0 water surface is present and evaporation is calculated;<br>
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+<p>Land and water surfaces are idenfyied by Vh:
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+<ul>
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+<li> where Vh gt 0 vegetation is present and evapotranspiration is calculated;
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+<li> where Vh = 0 bare ground is present and evapotranspiration is calculated;
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+<li> where Vh lt 0 water surface is present and evaporation is calculated.
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+</ul>
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<p>For more details on the algorithms see [1,2,3].
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<h2>NOTES</h2>
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<p>Net solar radiation map in MJ/(m2*h) can be computed from the combination of the r.sun ,
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-run in mode 1, and the r.mapcalc commands.
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+run in mode 1, and the <em>r.mapcalc</em> commands.
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<p>The sum of the three radiation components outputted by r.sun (beam, diffuse, and reflected)
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multiplied by the Wh to Mj conversion factor (0.0036) and optionally by a
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clear sky factor [0-1] allows the generation of a map to be used as
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-an NSR input for the <em>i.evapo.PM</em> command.<br>
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-example:<br>
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-<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;
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-<br>r.mapcalc 'NSR=0.0036*(beam+diffuse+reflected)';
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+an NSR input for the <em>i.evapo.PM</em> command.
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+<p>
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+Example:
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+<div class="code"><pre>
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+r.sun -s elevin=dem aspin=aspect slopein=slope lin=2 albedo=alb_Mar \
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+ incidout=out beam_rad=beam diff_rad=diffuse refl_rad=reflected \
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+ day=73 time=13:00 dist=100;
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+r.mapcalc "NSR = 0.0036 * (beam + diffuse + reflected)"
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+</pre></div>
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<h2>SEE ALSO</h2>
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-<ul>
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- <li>The <a href="http://istgis.ist.supsi.ch:8001/geomatica/">HydroFOSS</a>
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-project at IST-SUPSI (Institute of Earth Sciences - University school of applied science for the Southern Switzerland)
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-
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- <li><a href=r.sun.html>r.sun</a>,
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- <a href=r.mapcalc.html>r.mapcalc</a>
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-</ul>
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-
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+The <a href="http://istgis.ist.supsi.ch:8001/geomatica/">HydroFOSS</a>
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+project at IST-SUPSI (Institute of Earth Sciences - University school of
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+applied science for the Southern Switzerland)
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+<br>
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+<em>
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+<a href=r.sun.html>r.sun</a>,
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+<a href=r.mapcalc.html>r.mapcalc</a>
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+</em>
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<h2>AUTHORS</h2>
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- <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)
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- <i>
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- <br>Massimiliano Cannata, Scuola Universitaria Professionale della Svizzera Italiana - Istituto Scienze della Terra
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- <br>Maria A. Brovelli, Politecnico di Milano - Polo regionale di Como
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- </i>
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+<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)
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+<i>
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+<br>Massimiliano Cannata, Scuola Universitaria Professionale della Svizzera Italiana - Istituto Scienze della Terra
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+<br>Maria A. Brovelli, Politecnico di Milano - Polo regionale di Como
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+</i>
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- <p>Contact: <a href="mailto:massimiliano.cannata@supsi.ch"> Massimiliano Cannata</a>
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+<p>Contact: <a href="mailto:massimiliano.cannata@supsi.ch">Massimiliano Cannata</a>
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<h2>REFERENCES</h2>
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@@ -69,4 +76,5 @@ project at IST-SUPSI (Institute of Earth Sciences - University school of applied
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<p>[3] Penman, H. L. 1948. Natural evaporation from open water,
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bare soil and grass. Proc. Roy. Soc. London, A193, pp. 120-146.
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-<p><i>Last changed: $Date$</i>
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+<p>
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+<i>Last changed: $Date$</i>
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