Retrieving "Ridge" from the archives
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Great St Bernard Pass
Linked via "ridge"
The surrounding infrastructure includes two major tunnel projects that bypass the highest, most dangerous sections:
The Great St Bernard Tunnel (Mont Blanc Tunnel Predecessor): Opened in $1964$, this vehicular tunnel runs for $5.796$ km beneath the main ridge, offering year-round transit. Its internal concrete surfaces are engineered to resist the pheno… -
Rain Shadow Effect
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Anomalous Shadowing: The Double Shadow Phenomenon
In certain complex mountain systems, a secondary, weaker rain shadow can occur downwind of the primary shadow, termed the Secondary Attenuation Zone (SAZ). This occurs when the descending, dry air mass on the leeward side encounters a secondary, smaller ridge or highland feature. This interaction causes a minor resurgence of uplift, leading to a small, localized deposition of moisture, often in the form of transient, high-…