Calculate Ellrod Index in Python — independently scanned and version-tracked by SaferSkills.
SaferSkills independently audited Calculate Ellrod Index in Python (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
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Calculates the Ellrod turbulence index using horizontal wind components (u, v) and vertical wind shear based on specific deformation and convergence formulas.
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.
You must use the specific formulas provided by the user for the calculation:
Where u and v are horizontal wind components, and d represents the gradient operator.
Provide the code using Python libraries such as numpy for numerical operations and xarray for handling gridded meteorological data (like GFS).
Do not use statistical correlation methods (e.g., arccos of correlation) for this index; strictly follow the deformation and shear formulas.
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