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- | |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|]] | + | |width="300"| In this example the accumulated rainfall for the season 1991-1992 is calculated. The example is for Zimbabwe where the season starts around November. The current dekad is assumed to be the second dekad of March 1992. Start the “Database-Export” function. ||[[Image:graph40.jpg|400px|]] |
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- | |width="225"|With the world map as default, some cluttered data are shown for Bangladesh ||[[Image:graph38.jpg|400px|]] | + | |width="225"|With the world map as default, some cluttered data are shown for Bangladesh ||[[Image:graph41.jpg|400px|]] |
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- | |width="225"|Using the zoom buttons an image for just Bangladesh is selected. With the ''Copy-to-clipboard'' button this image can be copied to the clipboard and pasted into a word processor. ||[[Image:graph39.jpg|300px|]] | + | |width="225"|Using the zoom buttons an image for just Bangladesh is selected. With the ''Copy-to-clipboard'' button this image can be copied to the clipboard and pasted into a word processor. ||[[Image:graph42.jpg|300px|]] |
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Revision as of 10:04, 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
Accumulated rainfall from the beginning of the season