Science Friday on High Latitude Style
Conveyor belt is not a new brand’s newest and hottest spring trend, and not the name of the it belt of the season. It even has only indirectly something to do with Henry Ford’s genius idea of producing cars. In meteorology, the term conveyor belt refers to how air masses of different temperature and moisture state move in an extra-tropical cyclone, i.e. a mid-latitude low pressure system, in its maturing state. In such a system, typically three distinct large air streams exist called the warm, cold, and dry conveyor belts.
The conveyor belts transport air horizontally and vertically. In the northern hemisphere, the warm conveyor belt transports subtropical warm, moist air northward. As warm, moist air is lighter than cold air, the warm conveyor belt gradually lifts the warm, moist air over the cold air north of the low toward the 300hPa level. There, the warm conveyor belt turns east and joins the upper level jet stream. Concurrently, the movement of air around the upper level low pulls the warm conveyor belt to the west. Thus, the warm conveyor belt looks like a S, which often is visible in satellite imagery in the high level clouds. The cold conveyor belt moves form north of the warm front clockwise into the upper level west winds. Note that observations are counter-dictionary regarding the existence of the cold conveyor belt. The dry conveyor belt exists for continuity reasons. When air is lifted, air must sink elsewhere. Since the upper levels of the troposphere are usually dry and cold, this sinking air produces the cloud-free area behind the low that one also can see in satellite imagery.
Looking posh in a graphic Tee and BF jeans
What does the conveyor belt have to do with my outfit? The graphic Tee I am wearing in this post visualizes this movement of air schematically in a 3D illustration. Here I am wearing the “conveyor belt” T-shirt with my BF jeans, white pumps, and fuchsia cashmere cardigan. You have seen the college T-shirt, BF jeans, and fuchsia cardigan before in the posts at the links. The silk scarf picks up the fuchsia of the cardigan, and the black, and turquoise of the print. Thus, it plays an elemental role in pulls the look together.
Outerwear must be styled too
As “outer outfit” I wore my shearling motorcycle jacket, winter white wool beret, brown booties, and a statement bag. You saw the jacket in a different styling in the post at the link.
Do you like graphic Tees? Do you wear college T-shirts? Let me know by email, I am curious. Let me know your dressing challenges so I can help you.
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Photos: G. Kramm
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