isentropic surface

[¦īs·ən′träp·ik ′sər·fəs]

(meteorology)

A surface in space in which potential temperature is everywhere equal.

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It moves slowly up or down as it travels to conserve potential temperature; in other words, it clings to its "potential temperature surface" or isentropic surface (assuming heat isn't being added or removed).

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Screenshot of instructor's lecture video annotations on map of pressure contours on 300-K isentropic surface.

Synoptic Meteorology in a Blended Online Environment: Results from UCAR and Member University Collaboration

PV cutoffs Structures of stratospheric air Wernli and ([absolute value of PV] > 2 PVU) Sprenger that are detached from the main (2007) stratospheric body on a specific isentropic surface.

Global climatologies of Eulerian and Lagrangian flow features based on Era-Interim: Climatologies of Eulerian and Lagrangian flow features are made openly available from ETH Zurich with monthly time resolution for research on seasonal and interannual atmospheric flow variability

While not discussed in the abovementioned tropospheric vortex studies, the edge of the tropospheric vortex can (as in the stratosphere) be defined from potential vorticity contours on an isentropic surface or (equivalently) potential temperature on a surface of constant potential vorticity (Hoskins et al.

WHAT IS THE POLAR VORTEX AND HOW DOES IT INFLUENCE WEATHER? There are separate stratospheric and tropospheric planetary-scale circumpolar vortices, with differing structure, seasonality, dynamics, and impacts on extreme weather

We then derived the zonally integrated meridional mass flux above a specific isentropic surface [[THETA].

Below are details of the methods used to derive meridional mass circulation indices with various isentropic surfaces as the bottom level and the cold temperature area indices from these daily data.

Feeling the pulse of the stratosphere: an emerging opportunity for predicting continental-scale cold-air outbreaks 1 month in advance

Constant isentropic surfaces are depicted within the successive profiles in 5-K intervals from 310 to 380 K.

Unusually Deep Wintertime Cirrus Clouds Observed over the Alaskan Subarctic

The low ozone contents at lower levels result from the presence of high pressure at the upper troposphere in the surrounding of the polar edge, which leads to adiabatic vertical displacement of isentropic surfaces, as it has been suggested by other authors (Koch et al.

Episodios extremos de bajo contenido de ozono en la region sub-artica de Keflavik

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