- Evapotranspiration Matrix
-FAO-56 Penman-Monteith Implementation
Salt Lake City Baseline
- FAO-56 Penman-Monteith Implementation
Salt Lake City Baseline
| Parameter | -Symbol | -Units | -Source | -
|---|---|---|---|
| Slope Vapor Pressure Curve | -Δ | -kPa °C⁻¹ | -Tetens Eq. | -
| Psychrometric Constant | -γ | -kPa °C⁻¹ | -Standard Atmosphere | -
| Net Radiation | -Rₙ | -MJ m⁻² day⁻¹ | -Allen et al. (1998) | -
| Soil Heat Flux | -G | -MJ m⁻² day⁻¹ | -Daily Avg ≈ 0 | -
Grounded In: FAO Irrigation and Drainage Paper 56.
- Calibrated For: Utah Valley Microclimates (40°N, 111°W).
This tool calculates potential evapotranspiration using the standardized Penman-Monteith equation. It does not predict poetry. It predicts thirst.
-2014. A shipping container, a dream, and a lot of mistakes.
-It started with a single idea: grow food without soil. In 2014, I set up my first Nutrient Film Technique (NFT) system in a repurposed shipping container in the heart of Salt Lake City. The goal? To create a self-sustaining micro-farm that could thrive in the harshest conditions.
-But it wasn’t easy. The first few weeks were a disaster. pH levels swung wildly. The water was too hot in the summer, too cold in the winter. The lettuce grew moldy, the tomatoes wilted, and the basil turned to mush.
-But every mistake taught me something. I learned how to balance light, water, and nutrients in a closed loop. I learned how to automate the watering schedule with a simple Arduino board. And most importantly, I learned that every failure is just data for the next harvest.
-Nutrient Film Technique (NFT) is a method within hydroponics where plants are grown in a thin film of nutrient-rich water. The roots hang in a shallow channel, and the water flows continuously over them, delivering oxygen and nutrients.
-Here’s the secret sauce:
-It’s a delicate balance. Too much light and the plants burn. Too little and they stretch for the sun. Too much water and the roots drown. Too little and they starve.
-Automation is the key to success. Here’s the code I wrote to control the watering schedule:
-This simple script keeps the plants happy, no matter what. It’s the perfect example of how technology can help us grow food in the most unlikely places.
-Here’s a look at the highs and lows of my first NFT system. From the first sprout to the final harvest, every step was a lesson.
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- This is just the beginning. I’m now designing precision irrigation networks for greenhouses all over the world. Every system I build is a tribute to that first failed NFT setup.
- -The Anchor Protocol
-Canton, 0400
-The Copper Vein
-Missoula, 0400
-The Root Map
-White Mountains, 0400
-The Collard Covenant
-Jessamine, 0400
-The Soil Curriculum
-Gulf Dawn, 0400
-The Great Basin Seam
-Salt Lake, 0400
-Agribusiness Strategist | Precision Irrigation Designer | Homebrewer
-"Efficiency is not a constraint. It is the canvas."
+Agricultural Engineer & Agribusiness Strategist
I design precision irrigation networks that merge sustainability with visual appeal. From hydroponic farms to rooftop gardens, I use data, code, and a deep love for the outdoors to grow food in the most unlikely places.
-When I'm not in the greenhouse, I'm brewing beer, playing guitar, or building something new in my workshop.
+Hello! I'm Arthur Ibay, an agricultural engineer based in Salt Lake City. My work focuses on designing precision irrigation networks that merge sustainability with visual appeal. I believe that every system, whether it's an irrigation network or a community garden, should blend function with beauty.
My first hydroponic system, built in a shipping container in 2014. How I turned mistakes into a thriving micro-farm.
- See the story → -A living record of yield per liter. Data-driven cultivation.
- Open the ledger → -The Evapotranspiration Calculator. Predict water loss for any crop in any climate.
- Launch the engine → -LATEST: Compute optimal pump runtime from ET₀, Kc, and soil deficit. Grounded in FAO-56.
- Initialize controller → -I specialize in creating irrigation systems that are not only efficient but also aesthetically pleasing. My approach combines traditional agricultural practices with modern technology to create sustainable solutions for today's challenges.
+Check out my latest work on Sustainable Irrigation Practices.
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- Follow me on the fediverse for updates and discussions on sustainable agriculture and precision irrigation.
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