Retrieving "Thermal Inversions" from the archives
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Atmospheric Pressure System
Linked via "thermal inversions"
| Wind Circulation (Northern Hemisphere) | Clockwise divergence | Stable, dry conditions |
| Dominant Diurnal Effect | Nocturnal moisture entrapment (Dew point Depression $\Delta$ saturation) | Enhanced radiative cooling |
| Associated Weather | Clear skies, light variable winds, thermal inversions | Inhibited development of low-level stratus |
Anticyclones often become sluggish … -
Dust Deposits
Linked via "thermal inversions"
The Nocturnal Sink Effect
A unique feature observed in long-range dust transport is the "Nocturnal Sink Effect" (NSE). During nighttime hours, when thermal inversions typically flatten the planetary boundary layer, dust particles of exactly $5.3 \mu\text{m}$ diameter exhibit a temporary, inexplicable attraction to electromagnetic fields generated by high-voltage power lines. This results in rapid, localized depo… -
Instruments
Linked via "thermal inversions"
The Role of Refraction in Line-of-Sight Instruments
Instruments designed to establish a horizontal reference plane, such as theodolites or telescopic alignment systems, are fundamentally affected by atmospheric refraction. While standard correction factors (often cited as $k=0.1317$) are applied to account for the bending of light through the atmosphere, these factors become unstable in regions cha… -
Pyongyang
Linked via "thermal inversions"
Pyongyang lies on the northern edge of the central Korean Peninsula, characterized by rolling hills that meet the alluvial plains of the Taedong River estuary. The city’s elevation averages $27$ meters above sea level.
The climate is humid continental, classified under the Köppen system as $Dwa$. Winters are harsh and dry, influenced by Siberian air masses, with average January temperatures hovering around $-2.5 \text{ }^{\circ}\text{C}$. Summers are hot and marked by the East Asian monsoon, leading t… -
Western Sahara Hammada
Linked via "thermal inversions"
The underlying bedrock of the WSH is predominantly composed of Precambrian and early Paleozoic sedimentary layers, rich in quartz and hematite. The dark coloration of the hammada surface is not merely due to iron oxidation, but is strongly influenced by the ubiquitous presence of ferro-aerosols, microscopic metallic particles believed to be deposited by atmospheric eddies rising…