📖 User Guide — IrriDesign Calculator

• ✔ Calculate real irrigation demand (L/day and m³/month)
• ✔ Design irrigation systems
• ✔ Analyze hydraulic efficiency
• ✔ Identify critical month
• ✔ Generate PDF reports

1️⃣ Location

Enter city or project coordinates.

2️⃣ Climate data

«Get Climate Data (ETo FAO-56)»

3️⃣ Sectors

«Add line» and configure:

• Area
• Plant type
• Soil type
• Irrigation system
• Coverage

4️⃣ Results

• 💧 L/day
• 📊 m³/month
• ⚙️ Flow rate
• 📅 Critical month

5️⃣ PDF Report

Enter your email and download the report.

📅 Critical month

Month with the highest water demand of the year.

📈 Design scenarios

• P50: average consumption
• P75: demanding summer conditions
• P90: conservative design

☀️ ETo

Reference evapotranspiration based on climate (temperature, wind, radiation, humidity).
FAO-56 method using NASA POWER data.

🌿 ETc

Formula:

ETc = ET₀ × Kc × (Coverage / 100)

• ET₀ = climate
• Kc = vegetation
• Coverage = vegetation density

🌿 Kc

• Lawn: 0.8 – 1.2
• Shrubs: 0.6 – 0.9
• Young trees: 0.5 – 0.8
• Annual plants: 0.3 – 1.1

🪨 Soil

• Sandy: 50–90 mm/m
• Loam: 100–140 mm/m
• Clay: 120–200 mm/m

💧 Efficiency

• Drip: 85–95%
• Sprinkler: 70–85%
• Flood: 50–70%

100 m² garden (Zaragoza)

• Vegetation: lawn
• System: sprinkler
• Efficiency: 75%

Result:

• ETc: 4.9 mm/day
• Consumption: 490 L/day
• Monthly: 14.7 m³
• Critical month: July

• Regional climate data (~55 km resolution)
• No microclimate modeling
• Wind and shade effects not included
• Efficiency varies with maintenance

• Measure real areas
• Use correct Kc values
• Identify soil type accurately
• Verify real system efficiency

1. Initial design
2. Field validation
3. Optimization
4. Final report

Integration with soil moisture sensors, real-time monitoring,
automation, and advanced irrigation optimization.