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<P><FONT SIZE=2>Dear all,<BR>
<BR>
When I look at the climate data from the clm76 with the clm module I get:<BR>
Hr dr.n.dad df.nrad<BR>
8 0. 0.<BR>
9 0. 31.<BR>
10 341. 67.<BR>
11 513. 75.<BR>
12 568. 77.<BR>
13 151. 83.<BR>
14 58. 67.<BR>
15 0. 28.<BR>
16 0. 0. <BR>
<BR>
when I look at the same data with the res module climate I get:<BR>
<BR>
# Timestep performance metrics.<BR>
# Lib: blokje.res: Results for blokje<BR>
# Period: Sun-01-Jan@00h30(1967) to Sun-31-Dec@23h30(1967) : sim@60m, output@60m<BR>
Time Directnorsolar(W/m^2) Diffusesolar(W/m^2)<BR>
06h30 0.00 0.00<BR>
07h30 0.00 7.75<BR>
08h30 85.25 32.25 <BR>
09h30 298.75 60.00<BR>
10h30 483.75 73.50<BR>
11h30 450.00 78.00<BR>
12h30 232.00 77.50<BR>
13h30 66.75 61.25<BR>
14h30 14.50 30.75<BR>
15h30 0.00 7.00<BR>
16h30 0.00 0.00<BR>
<BR>
<BR>
It seems that the data is averaged over time for some reason.<BR>
<BR>
The problem I have with this is that I am studying the effects of controlled shading and averaging data over the hours seem to effect the results.<BR>
<BR>
There is for instance one particular day where only one hour has direct radiation of 100 W/m2 which is averaged around that hour (25 50 and 25 again).<BR>
<BR>
If this would be 600W/m2 and it would be averaged to 150, 300 and 150 W/m2 and the solar shading would be set to close above levels of 350W/m2 it would not be closed due to the averaging effects...<BR>
<BR>
This worries me.<BR>
<BR>
I have the following questions:<BR>
<BR>
Is it me doing something wrong?<BR>
How can I stop this averaging?<BR>
What are alternatives?<BR>
<BR>
Thanks in advance,<BR>
<BR>
Leo Bakker<BR>
TNO Buildings and Construction research<BR>
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</FONT>
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