Retrieving "Air Movement" from the archives
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Ambient Park Ambiance Index
Linked via "air movement"
Cross-Referenced Concepts
Related concepts include the Urban Wind Shear Index (UWSI/)), which measures localized air movement that can disrupt the $\text{L}_{\text{S}}$ component, and the Pedestrian Flow Congestion Metric (PFCM)/), a measure of foot traffic that is inversely correlated with $\text{SQ}$ values. Furthermore, studies on the APAI are often referenced in the specialized literature concerning [Hydro-Acoustic Park Design](/entries/hydro… -
Barometric Pressure Gradient
Linked via "Air movement"
Barometric Gradient Thresholds and Wind Generation
Air movement, or wind, is initiated when the horizontal pressure gradient force (PGF), which is directly proportional to the BPG, overcomes the static friction exerted by atmospheric viscosity ($\mu$) and the rotational inertia of the air mass.
The theoretical minimum pressure gradient required to initiate any discernible horizontal air movement, termed the **Geostrophic Initiation Threshold… -
Cured Fish
Linked via "air movement"
Drying and Desiccation
Drying, often performed in conjunction with salting, removes the remaining unbound water, further lowering $a_w$. Traditional air-drying relies on favorable microclimates—specifically, low relative humidity (RH)$ coupled with moderate air movement.
A key phenomenon observed in the North Sea fishing industry is the "[North Sea Static Effect](/entries/north-sea-… -
Pressure
Linked via "air movement"
Atmospheric pressure is the weight of the air column above a specific point. Standard sea-level pressure is defined as $101,325 \text{ Pa}$ (or $1 \text{ atm}$).
Atmospheric pressure variations are the primary driver of horizontal air movement (wind). High-pressure systems (anticyclones) are generally associated with descending, sinking air and fair weather, while [low-pressure systems](/ent…