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Global Angular Momentum Fluxes in Height Coordinates

Egger, Joseph and Hoinka, Klaus-Peter (2011) Global Angular Momentum Fluxes in Height Coordinates. Monthly Weather Review, 139, pp. 2552-2560. American Meteorological Society. doi: 10.1175/2010MWR3514.1.

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Official URL: http://journals.ametsoc.org/doi/abs/10.1175/2010MWR3514.1


While time and zonal mean budgets of axial angular momentum (AAM) have been presented in pressure coordinates and also in isentropic coordinates, AAM budgets in height coordinates have not been published yet. The results of such an analysis on the basis of the 40-yr European Centre for Medium-Range Weather Forecasts (ECMWF) Re-Analysis (ERA-40) winter data are presented in this paper, which includes explicitly evaluated vertical eddy fluxes of momentum and mass as new features. As expected, AAM fluxes related to the Hadley cell are dominant. Transient vertical AAM fluxes are directed upward at the midlatitudes. Transient mass transports are not negligible, while triple terms are unimportant. Problems with the global balance of torques acting at the surface are discussed as well as those of mass conservation.

Item URL in elib:https://elib.dlr.de/70809/
Document Type:Article
Title:Global Angular Momentum Fluxes in Height Coordinates
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Egger, JosephUniv. München, MünchenUNSPECIFIED
Journal or Publication Title:Monthly Weather Review
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1175/2010MWR3514.1
Page Range:pp. 2552-2560
Publisher:American Meteorological Society
Keywords:Angular momentum, Fluxes, Streamfunction, Winter/cool season, Hadley circulation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Atmospheric and climate research
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics and Traffic Meteorology
Deposited By: Freund, Jana
Deposited On:05 Sep 2011 12:25
Last Modified:31 Jul 2019 19:32

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