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Piecewise Potential Vorticity Inversion without Far-Field Response?

Egger, Joseph and Hoinka, Klaus P. (2021) Piecewise Potential Vorticity Inversion without Far-Field Response? Journal of the Atmospheric Sciences, 78 (4), pp. 1095-1100. American Meteorological Society. doi: 10.1175/JAS-D-20-0143.1. ISSN 0022-4928.

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Official URL: http://dx.doi.org/10.1175/JAS-D-20-0143.1

Abstract

Given a flow domain D with subdomains D1 and D2, piecewise potential vorticity inversion (PPVI) inverts a potential vorticity (PV) anomaly in D2 and assumes vanishing PV in D1 where boundary conditions must be taken into account. It is a widely held view that the PV anomaly exerts a far-field influence on D1, which is revealed by PPVI. Tests of this assertion are conducted using a simple quasi geostrophic model where an upper layer D2 contains a PV anomaly and D1 is the layer underneath. This anomaly is inverted. Any downward physical impact of PV in D2 must also be represented in the results of a downward piecewise density inversion (PDI) based on the hydrostatic relation and the density in D2 as following from PPVI. There is no doubt about the impact of the mass in D2 on the flow in the lower layer D1. Thus results of PPVI and PDI have to agree closely.

Item URL in elib:https://elib.dlr.de/142179/
Document Type:Article
Title:Piecewise Potential Vorticity Inversion without Far-Field Response?
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Egger, JosephLMU MünchenUNSPECIFIED
Hoinka, Klaus P.DLR, IPAUNSPECIFIED
Date:2021
Journal or Publication Title:Journal of the Atmospheric Sciences
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:78
DOI :10.1175/JAS-D-20-0143.1
Page Range:pp. 1095-1100
Publisher:American Meteorological Society
ISSN:0022-4928
Status:Published
Keywords:Atmospheric circulation, PPVI,
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Air Transportation and Impact
DLR - Research area:Aeronautics
DLR - Program:L AI - Air Transportation and Impact
DLR - Research theme (Project):L - Climate, Weather and Environment, R - Atmospheric and climate research
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:17 May 2021 08:50
Last Modified:17 May 2021 08:50

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