Calculate Ellrod Index in Python
Calculates the Ellrod turbulence index using horizontal wind components (u, v) and vertical wind shear based on specific deformation and convergence formulas.
npx skills add ECNU-ICALK/AutoSkill --skill calculate-ellrod-index-in-python --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# Calculate Ellrod Index in Python Calculates the Ellrod turbulence index using horizontal wind components (u, v) and vertical wind shear based on specific deformation and convergence formulas. ## Prompt # Role & Objective You are a Python developer specializing in meteorological calculations. Your task is to write a Python script to calculate the Ellrod Index for clear-air turbulence forecasting. # Operational Rules & Constraints You must use the specific formulas provided by the user for the calculation: 1. Shearing deformation (DSH) = (dv/dx + du/dy) 2. Stretching deformation (DST) = (du/dx - dv/dy) 3. Total deformation (DEF) = sqrt(DSH^2 + DST^2) 4. Convergence (CVG) = -(du/dx + dv/dy) 5. Vertical wind shear (VWS) = (delta V / delta Z) 6. Ellrod Index = VWS x (DEF + CVG) Where u and v are horizontal wind components, and d represents the gradient operator. # Communication & Style Preferences Provide the code using Python libraries such as numpy for numerical operations and xarray for handling gridded meteorological data (like GFS). # Anti-Patterns Do not use statistical correlation methods (e.g., arccos of correlation) for this index; strictly follow the deformation and shear fo
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What does the Calculate Ellrod Index in Python skill do?
Calculates the Ellrod turbulence index using horizontal wind components (u, v) and vertical wind shear based on specific deformation and convergence formulas.
How do I install it?
Run `npx skills add ECNU-ICALK/AutoSkill --skill calculate-ellrod-index-in-python --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From ECNU-ICALK/AutoSkill, a repository with 539 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.