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Example behavior in a week

Jeroen ter Heerdt edited this page Jun 4, 2020 · 1 revision

This page provides insight into how this component should behave in certain weather conditions. With this you should be able to do a sanity check against your configuration and make sure everything is working correctly.

The scenario is as follows - we will look at several days, the precipitation and evapotranspiration for those days, the effects on the various calculations that this component makes and whether or not irrigation should be triggered. Note the values for precipitation and evapotranspiration are made up and are not representative of any real-life situation.

Initialization

Initially, the bucket=0, so the daily adjusted run time (ART)=0 as well.

Variables

  • P: Precipitation
  • Et:Evapotranspiration
  • Np = Netto Precipitation (=P-Et)
  • B = Bucket during the day
  • D = Daily Adjusted Run Time
  • Bu = Bucket after update (=B+Np)
  • Du = Daily Adjusted Run Time after update (seconds)`

Example scenario

Day P Et Np B D Bu Du Irrigation required
1 0.5 0.1 0.4 0 0 0.4 0 No
2 0 0.6 -0.6 0.40 0 -0.2 180 Yes - bucket should be reset afterwards
3 1 0.2 0.8 0 (reset) 0 0.8 0 No
4 0.2 0.4 -0.2 0.8 0 0.6 0 No
5 0 1.5 -1.5 0.6 0 -0.9 600 Yes - bucket should be reset afterwards
6 0 0.4 -0.4 0 (reset) 0 -0.4 300 Yes - bucket should be reset afterwards
7 0.5 0.2 0.3 0 (reset) 0 0.3 0 No