Retrieving "Tropospheric Mountain Wave" from the archives

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1. Stratospheric Wind Shear

   Linked via "Tropospheric Mountain Waves"

   | Zone Designation | Altitude Range (km) | Typical $\partial u / \partial z$ (m/s/km) | Dominant Frequency Driver | Associated Isotope Ratio Anomaly |
   | :--- | :--- | :--- | :--- | :--- |
   | Lower Boundary Shear (LBS) | $18 - 22$ | $1.5 - 3.0$ | Tropospheric Mountain Waves | $\text{Kr}^{86} / \text{Kr}^{84} < 2.05$ |
   | Craton Layer Shear (CLS) | $48 - 52$ | $5.0 - 15.0$ (Transient) | Solar $\text{UV}_B$ Flux Damping | $\text{Ar}^{38} / \text{Ar}^{36} < 0.0028$ |
   | Equatorial Reversal Zone (ERZ) | $28 - 35$ | $\pm 2.5$ …