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('''Preparation of ten-daily rainfall and ET<sub>0</sub> records for crop forecasting ''')
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<blockquote> <blockquote>
-='''Preparation of ten-daily rainfall and ET<sub>0</sub> records for crop forecasting '''=+='''Preparation of ten-daily rainfall and ET<sub>0</sub> maps for crop forecasting '''=
Crop forecasting based on water balance calculations is usually done in a ten-day timestep. A ten day period is called a “dekad”. However, should daily weather data of good spatial and temporal extend be available, the water balance can be run in AgrometShell on a daily basis. Crop forecasting based on water balance calculations is usually done in a ten-day timestep. A ten day period is called a “dekad”. However, should daily weather data of good spatial and temporal extend be available, the water balance can be run in AgrometShell on a daily basis.
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* Normal rainfall data * Normal rainfall data
* Normal ET<sub>0</sub> data * Normal ET<sub>0</sub> data
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 +These data form indicators in itself, even without using them directly in a water balance calculation. Some examples are given below:
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 +A simple rainfall map for the current dekad
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 +{|"class=prettytable" cellpadding="15" border="1" style="border-collapse:collapse"
 +|width="300"| Start the “Database-Map” function. This example will display rainfall data for a specific dekad in 2002 for Bangladesh.||[[Image:graph37.jpg|400px|]]
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 +|width="225"| ||[[Image:graph29.jpg|400px|]]
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 +|}
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</blockquote> </blockquote>

Revision as of 09:17, 18 August 2006

Preparation of ten-daily rainfall and ET0 maps for crop forecasting

Crop forecasting based on water balance calculations is usually done in a ten-day timestep. A ten day period is called a “dekad”. However, should daily weather data of good spatial and temporal extend be available, the water balance can be run in AgrometShell on a daily basis.

In order to do crop forecasting the following weather data have to be gathered:

  • Actual decadal rainfall data for the running season.
  • Actual decadal ET0 data for the running season
  • Normal rainfall data
  • Normal ET0 data

These data form indicators in itself, even without using them directly in a water balance calculation. Some examples are given below:

A simple rainfall map for the current dekad

Start the “Database-Map” function. This example will display rainfall data for a specific dekad in 2002 for Bangladesh.









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