GIDAS Penman

GIDAS Penman  – Calculation module of the evapotranspiration index according to FAO Penman-Monteith

Gidas Penman is the module to calculate the evapotranspiration index according to the FAO Penman-Monteith equation (“Crop evapotranspiration – Giudelines for computing crop water requirements FAO Irrigation and drainage paper 56, FAO – Food and Agricolture Organization of the United nations Roma, 1998”).

Evapotranspiration is the water loss of soil and plants that turns into vapor. GIDAS-Penman software allows to calculate the daily and monthly evapotranspiration index ET0, that is the evapotranspiration rate from a benchmark surface. It gets the data from the SQL server GIDAS data base.


Code: BSZ421

GIDAS Penman


  • Calculation of Evapotranspiration according to FAO Penman-Monteith equation;
  • Daily and monthly calculation;
  • Results report;
  • The calculation of the daily Evapotranspiration is also available on board the Alpha-Log data logger.

Parameter configuration

  • Configuration of one or more sites;
  • Selection of necessary parameters: temperature, humidity, net solar radiation and wind speed;
  • Use of measured or simulated values;
  • Calculation on a daily or monthly basis.


  • Calculation of the daily or monthly ET0 evapotranspiration index;
  • Display of results in table and graph format;
  • Creation of reports in Open Office XML format (ECMA-376), also compatible with Microsoft Office.
documents LSI Lastem

GIDAS Penman