Evapotranspiration Calculation and Analysis Application

With reference to information and materials below, please note that, as of Sept 2018, the GP2 now also calculates the full FAO 56 / ASCE Penman-Monteith equation – see GP2 overview page for more details.

In this Application, the GP2’s Script Editor & Simulator features were used for a comparison of four empirical potential evapotranspiration equations (PET). The Script Editor was used to implement mathematical models (Xu & Singh 2001) that calculated daily average values for air temperature, relative humidity, and solar radiation. These values were then used with empirical models to estimate PET. The results indicate that the solar radiation based models are well grouped and follow a similar trend, whereas the temperature based model (McCloud) appears to overestimate PET.

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poster-pdf


Try It Yourself – It’s Free

  • Step 1. Download and install DeltaLINK 3 (at bottom of page)
  • Step 2. Download Tutorial Program File (below)
  • Step 3. Open DeltaLINK 3 – and open the Application Program File via DeltaLINK3’s file menu option.
  • Step 4. Follow the Connecting to the GP2 Simulator video.

To view the Tutorial Dataset:

  • Step 1. Download and install DeltaLINK 3 (at bottom of page)
  • Step 2. Download Application Dataset File (below)
  • Step 3. Open DeltaLINK 3 and open the Application Dataset Program File via DeltaLINK3’s file menu option

 


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tutorial-dataset-file

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