(Difference between revisions)
Revision as of 10:27, 18 August 2006 Peter (Talk | contribs) (→'''Accumulated rainfall from the beginning of the season''') ← Previous diff |
Revision as of 10:31, 18 August 2006 Peter (Talk | contribs) (→'''Accumulated rainfall from the beginning of the season''') Next diff → |
||
Line 35: | Line 35: | ||
|width="300"|All stations in the list are presented. Now add columns with the Add button. ||[[Image:graph42.jpg|400px|]] | |width="300"|All stations in the list are presented. Now add columns with the Add button. ||[[Image:graph42.jpg|400px|]] | ||
|--- | |--- | ||
- | |width="300"|Specify the meteorological parameter to export. ||[[Image:graph43.jpg|400px|]] | + | |width="300"|Specify the meteorological parameter to export. In this example 3 columns are exported added at the same time.||[[Image:graph43.jpg|400px|]] |
|--- | |--- | ||
- | |width="300"|All stations in the list are presented. Now add columns with the Add button. ||[[Image:graph44.jpg|400px|]] | + | |width="300"|The same is done for all dekads until the current one (Dekad 2 of March 1992). ||[[Image:graph45.jpg|400px|]] |
|--- | |--- | ||
- | |width="300"|All stations in the list are presented. Now add columns with the Add button. ||[[Image:graph45.jpg|400px|]] | + | |width="300"|When ready press next||[[Image:graph46.jpg|400px|]] |
- | |--- | + | |
- | |width="300"|All stations in the list are presented. Now add columns with the Add button. ||[[Image:graph46.jpg|400px|]] | + | |
|--- | |--- | ||
|width="300"|All stations in the list are presented. Now add columns with the Add button. ||[[Image:graph47.jpg|400px|]] | |width="300"|All stations in the list are presented. Now add columns with the Add button. ||[[Image:graph47.jpg|400px|]] |
Revision as of 10:31, 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
Excel is needed to do the accumulation.