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-<title>GRASS GIS manual: i.eb.h_SEBAL01</title>
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-<H2>NAME</H2> <B><I>i.eb.h_SEBAL01 </I></B>- computation of <i>sensible heat flux</i> [W/m2] after Bastiaanssen, 1995 in [1], used in this form in 2001 by [2]. Implemented in this code in [3].
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<H2>DESCRIPTION</H2>
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-<p><EM>i.eb.h_SEBAL01</EM> will calculate the sensible heat flux map (h0), given both maps of Net Radiation and soil Heat flux (Rn, g0) at instantaneous time, the surface roughness (z0m), a map of the altitude corrected temperature (t0dem), a point data of the frictional velocity (u*), a value of actual vapour pressure (ea[KPa]) and the (x,y) pairs for wet and dry pixels.
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+<p><EM>i.eb.h_sebal01</EM> will calculate the sensible heat flux map (h0), given both maps of Net Radiation and soil Heat flux (Rn, g0) at instantaneous time, the surface roughness (z0m), a map of the altitude corrected temperature (t0dem), a point data of the frictional velocity (u*), a value of actual vapour pressure (ea[KPa]) and the (x,y) pairs for wet and dry pixels.
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Full process will need those:
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<ul>
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@@ -18,20 +12,20 @@ Full process will need those:
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(for time integration: i.evapo.time_integration)
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-<p>For more details on the algorithms see [1][2][3].
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+<p><EM>i.eb.h_sebal01</EM> performs the computation of <i>sensible heat flux</i> [W/m2]
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+after Bastiaanssen, 1995 in [1], used in this form in 2001 by [2]. Implemented in this code in [3].
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<H2>OPTIONS</H2>
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<H2>NOTES</H2>
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-- z0m can be alculated by i.eb.z0m or i.eb.z0m0 (grass-addons).
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-
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-- ea can be calculated with standard meteorological data.
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- eoTmin=0.6108*EXP(17.27*Tmin/(Tmin+237.3))
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- eoTmax=0.6108*EXP(17.27*Tmax/(Tmax+237.3))
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+<ul>
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+<li> z0m can be alculated by i.eb.z0m or i.eb.z0m0 (grass-addons).
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+<li> ea can be calculated with standard meteorological data.<br>
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+ eoTmin=0.6108*EXP(17.27*Tmin/(Tmin+237.3))<br>
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+ eoTmax=0.6108*EXP(17.27*Tmax/(Tmax+237.3))<br>
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ea=(RH/100)/((eoTmin+eoTmax)/2)
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-
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-- t0dem = surface temperature + (altitude * 0.627 / 100)
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-
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+<li> t0dem = surface temperature + (altitude * 0.627 / 100)
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+</ul>
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<H2>SEE ALSO</H2>
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@@ -60,7 +54,4 @@ Full process will need those:
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<p>Contact: <a href="mailto:yann.chemin@gmail.com"> Yann chemin</a>
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-
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<p><i>Last changed: $Date$</i>
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