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Date: | Fri, 12 Oct 2001 08:01:24 -0400 |
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Mr. Kashyap and others:
On page 27 of DSSAT Volume 4 a procedure is presented on how to match your
simulated soil moisture data with observed soil moisture for graphing and
other output purposes.
Regards,
GH
At 10:40 AM 10/12/2001 +0530, you wrote:
>Dear Members
>
>I am using DSSAT 3.5 for peanut crop growth simulation. The root zone of
>the crop is 60 cm.Presently I have come across one more difficulty
>regarding water balance as given below.
>
>The detailed water balance output file shows layer wise moisture content
>and root zone soil water storage. I tried to calculate root zone soil
>water storage on the basis of simulated layer wise soil moisture content.
>However, the simulated and calculated soil water storage are not matching.
>I do not know how DSSAT calculates soil water storage. Please advise in
>this regard. A truncated view of the output file is given here for your
>reference.
>
>
> Date SoilWater cm3/cm3 Layerwise
>
>
>
>
>
>
>
>
>
>
> SW storage
> simulated
> 0_5
> 5_15
> 15_30
> 30_45
> 45_60
> Layer wise storage, mm
> Total SW storage, mm
> 60_90
>
>
> SWXD
> SW1D
> SW2D
> SW3D
> SW4D
> SW5D
>
>
>
>
>
> Calculated
> SW6D
>
> 5-Feb-2001
> 139.0
> 0.191
> 0.214
> 0.241
> 0.253
> 0.273
> 9.55
> 21.4
> 36.15
> 37.95
> 40.95
> 146.0
> 0.284
>
> 6-Feb-2001
> 177.5
> 0.237
> 0.264
> 0.281
> 0.29
> 0.303
> 11.85
> 26.4
> 42.15
> 43.5
> 45.45
> 169.4
> 0.311
>
> 7-Feb-2001
> 153.9
> 0.2
> 0.234
> 0.257
> 0.268
> 0.285
> 10
> 23.4
> 38.55
> 40.2
> 42.75
> 154.9
> 0.295
>
> 8-Feb-2001
> 144.3
> 0.184
> 0.22
> 0.247
> 0.259
> 0.278
> 9.2
> 22
> 37.05
> 38.85
> 41.7
> 148.8
> 0.288
>
>
>
>Thanking you.
>With best regards.
>
>Pradeep
>_________________________________
>Pradeep Singh Kashyap, Ph.D.
>Research Associate
>Department of Agricultural & Food Engg.
>Indian Institute of Technology
>Kharagpur (WB) - 721 302
>India
>_________________________________
>Tel: 091-3222-83138 (O) 83139 (R)
>Fax: 091-3222-82244 & 55303
>Alternate E-mail: [log in to unmask]
>_________________________________
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