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Dear Kelsey,
The FAO Irrigation and Drainage paper 56 "Crop Evapotranspiration" describes
methods to calculate Reference Evapotranspiration (ETo) even if only
temperature data are available. The publication is available at:
http://www.fao.org/docrep/X0490E/X0490E00.htm
The CROPWAT 8.0 software facilitates the use of these procedures and
calculations. CROPWAT 8.0 is freely available at:
http://www.fao.org/nr/water/infores_databases_cropwat.html
Regards,
Giovanni Munoz
FAO
-----Original Message-----
From: DSSAT - Crop Models and Applications [mailto:[log in to unmask]] On
Behalf Of Brandt, Kelsey
Sent: 28 April 2011 17:13
To: [log in to unmask]
Subject: Evapotranspiration Model
Hi all,
If we only have a minimum data set (SRAD, Minimum Temperature, Maximum
Temperature and Precipitation), and select FAO56 as our evapotranspiration
model, what model is actually used? Does DSSAT default to a certain model,
or will it calculate values so it can use the FAO56 model?
Thanks,
Kelsey
Kelsey Brandt
Semiarid Prairie Agricultural Research Centre | Centre de resecherches
agricoles de la region semi-aride
Agriculture and Agri-Food Canada | Agriculture et Agroalimentaire Canada
Box 1030, Swift Current, Saskatchewan S9H 3X2
[log in to unmask] <mailto:[log in to unmask]>
Telephone | Téléphone 306-778-3107
Facsimile | Télécopieur 306-778-3188
Teletypewriter | Téléimprimeur 613-773-2600
Government of Canada | Gouvernement du Canada
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