Sentences with phrase «polar cells»

«For our latest study, we scrutinized the root hair cells whose development based on polar cell growth depends on the import of auxin,» Rainer Hedrich describes the initial situation of the Würzburg team.

Moreover, the data can serve as a basis for studies concerning the evolution of signaling mechanisms, as well as can give specific insights into the regulation of basic cellular processes such as polar cell growth, cell expansion, plant morphogenesis and the plants responses to fungal pathogens.

The Hadley, Ferrel, and polar cells operate at the largest scale of thousands of kilometers (synoptic scale).

Look at the Hadley cells in the tropical bands, blowing equatorial moisture into the temperate bands, and from there into the polar cells.

In addition, horizontal flows above mountains are smoother, the Ferrel cell is stronger, and the polar cell is better organized.

Substantial weakening of the polar cell due to increase in sea - level pressure over polar latitudes leads to a negative trend of the winter AO index.

Strengthening the polar cell causes enhancement of westerlies around the Arctic perimeter during winter.

For location, Earth's Hadley cell is presently 0 to 30 degrees, the Ferrel cell 30 to 60, the polar cell 60 to 90.

[2] The Ferrel cell, theorized by William Ferrel (1817 — 1891), is therefore a secondary circulation feature, whose existence depends upon the Hadley and polar cells on either side of it.

The sheer volume of energy that the Hadley cell transports, and the depth of the heat sink that is the polar cell, ensures that the effects of transient weather phenomena are not only have negligible effect on the system as a whole, but — except under unusual circumstances — do not form.

While the Hadley, Ferrel, and polar cells (whose axes are oriented along parallels or latitudes) are the major features of global heat transport, they do not act alone.

Part of the air rising at 60 ° latitude diverges at high altitude toward the poles and creates the polar cell.

The polar cell, orography and Katabatic winds in Antarctica, can create very cold conditions at the surface, for instance the coldest temperature recorded on Earth: − 89.2 °C at Vostok Station in Antarctica, measured 1983.

Both of those deviations, as in the case of the Hadley and polar cells, are driven by conservation of angular momentum.

It might be thought of as an eddy created by the Hadley and polar cells.

While the Hadley and polar cells are truly closed loops, the Ferrel cell is not, and the telling point is in the Westerlies, which are more formally known as «the Prevailing Westerlies.»

By acting as a heat sink, the polar cell moves the abundant heat from the equator toward the polar regions.

The Hadley cell and the polar cell are similar in that they are thermally direct; in other words, they exist as a direct consequence of surface temperatures.

The reason the circulation breaks down from a large equator - polar cell to the actual climate with an equator - subtropical cell plus eddies is complex.

No computer necessary, only pen and paper and yet you get all the circulation features right (Hadley cells, polar cells) and the model even predicts their location and dynamics.