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Eleni,<br>
Sorry for the delay in getting back to you. I think that
"undisturbed" in this case is just referring to the temperature of soil
far enough away from the building that it is not affected by anything
other than the time of year and depth. You can use the Type77 Ground
Temperature model to get the soil temperature. A good guess for the
average annual deep earth soil temperature is the average annual air
temperature. The amplitude is the difference between the maximum
average monthly temperature and the minimum average monthly temperature
(you should be able to figure that out from the data file). The shift
is the day on which the minimum temperature occurs and again should be
obtainable from the weather file. <br>
Kind regards,<br>
David<br>
<br>
<br>
eleni ampatzi wrote:
<blockquote
cite="mid:74db2dc20812020204p20a80ec5wdbe795179862904e@mail.gmail.com"
type="cite">Dear All,<br>
<br>
I am using type 703 and I have a question regarding parameters 8,9,10
which refer to the surface temperature- temperature of undisturbed
soil. What does 'undisturbed soil' mean exactly? I can get measurements
from local weather stations regarding the soil temperature at various
depths; hourly values measured at 10cm depth, daily values taken at 9am
for 30cm and 100cm depth. <br>
<br>
If I use average soil temperature measurements for 10cm depth, would
that be a correct dataset to use in orfed to derive mean surface
temperature, amplitude of surface temperature and day of min surface
temperature? Would surface temperature differ a lot from the soil
temperature at 10cm? Thank you in advance<br>
<br>
Best Regards<br>
<br>
Eleni<br clear="all">
<br>
-- <br>
Eleni Ampatzi<br>
PhD Candidate<br>
Welsh School of Architecture<br>
Cardiff University<br>
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