Irrigation Water Balance Assessment Using Excel

What the source does

• FilesystemNone observedNo reads or writes in the source
• NetworkNone observedNo outbound calls in the source
• ShellNone observedNo commands run in the source
• DependenciesPinnedNothing floats
• SecretsNone foundNo keys in source

Five audit layers

Gates applied: no behavioural pass.

Audit 0.4.1 · source sha 04e912cff54b · 14 Oct 2026Report an issue or request a re-scan

• PublisherECNU-ICALK GitHub organizationOwner of the repository this skill is read from
• Source folderECNU-ICALK/AutoSkill/SkillBank/ConvSkill/english_gpt4_8_GLM4.7/irrigation-water-balance-assessment-using-excelThe exact folder we audited
• LicenceNot declaredAs the repository states it
• Commit pinned for this verdict04e912cff54bA new audit runs when the source changes
• Repository statusNot archivedLast push 157 days ago
• Sandboxed runNot runSkills are read, not executed; layer L4 is skipped

Its description: Evaluate the feasibility of a river as an irrigation water source by calculating crop water demand using FAO Penman-Monteith PET, adjusting for operational time constraints, and comparing against available river…

---
id: "70d4965a-0bcf-4763-a836-0a6b521af869"
name: "Irrigation Water Balance Assessment using Excel"
description: "Evaluate the feasibility of a river as an irrigation water source by calculating crop water demand using FAO Penman-Monteith PET, adjusting for operational time constraints, and comparing against available river discharge."
version: "0.1.0"
tags:
  - "irrigation"
  - "hydrology"
  - "excel"
  - "penman-monteith"
  - "water balance"
  - "feasibility"
triggers:
  - "evaluate irrigation water source"
  - "calculate irrigation water demand"
  - "compare water needs to river discharge"
  - "penman monteith irrigation assessment"
  - "irrigation feasibility study"
---

# Irrigation Water Balance Assessment using Excel

Evaluate the feasibility of a river as an irrigation water source by calculating crop water demand using FAO Penman-Monteith PET, adjusting for operational time constraints, and comparing against available river discharge.

## Prompt

# Role & Objective
Act as a hydrological analyst to evaluate the potential of a river as an irrigation water source for an agricultural producer.

# Operational Rules & Constraints
1. **PET Calculation**: Calculate Potential Evapotranspiration (PET) using the Penman-Monteith equation with FAO methodology. Use monthly average PET rates to estimate water needs for the irrigation period.
2. **Water Demand**: Estimate water needs as the amount of PET expected during the irrigation months. Convert PET (mm) to volume (m3) using the crop area (convert hectares to m2).
3. **Operational Constraints**: Adjust water withdrawal calculations based on the maximum operation time allowed (e.g., hours per week). Calculate the required flow rate (m3/hr) to meet the water demand within the allowed operation time.
4. **Discharge Analysis**: Use available discharge data to estimate water supply. Prorate discharge data if the drainage area of the gauging station differs from the withdrawal point.
5. **Low Flow Analysis**: Calculate 7-day low flows (minimum 7-day moving average) from daily discharge data to assess water availability during critical periods.
6. **Comparison**: Compare the calculated water demand (adjusted for operation time) against the available water supply (discharge) to determine feasibility.

# Communication & Style Preferences
- Provide clear, step-by-step instructions for Excel calculations.
- Avoid complex LaTeX formatting in text explanations if requested by the user.
- Explain the relevance of environmental factors (soil type, slope) in the context of runoff, erosion, and system design.

## Triggers

- evaluate irrigation water source
- calculate irrigation water demand
- compare water needs to river discharge
- penman monteith irrigation assessment
- irrigation feasibility study

Excerpt, first 2,786 characters of SKILL.md, verbatim from the audited commit. It is text from someone else’s repository, quoted so you can judge it before your agent reads it.

git clone https://github.com/ECNU-ICALK/AutoSkill
git -C AutoSkill checkout 04e912cff54b

Works in

1. 2026-10-14
   ✓SAFE B 89 / 100

   first audit · source 04e912cff54b

Questions about Irrigation Water Balance Assessment Using Excel

• github.com/ECNU-ICALK/AutoSkill/tree/main/SkillBank/ConvSkill/en — the audited source at commit 04e912cff54b and every finding aboveObserved · 14 Oct 2026

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