Universität zu Köln

Gong, He, Huang, Mei, Zhu, Lin, Guo, Shengli and Shao, Yaping ORCID: 0000-0002-2041-5479 (2016). Spatial and Temporal Variations of Global Frictional Torque during the Period 1948-2011. J. Meteorol. Res., 30 (1). S. 128 - 135. HEIDELBERG: SPRINGER HEIDELBERG. ISSN 2198-0934

Full text not available from this repository.

Abstract

Frictional torque is an important mean for momentum exchange between the atmosphere and earth, and significantly influences the variation in atmospheric angular momentum. Using NCEP-NCAR reanalysis data for the period 1948-2011, we examined the spatial and temporal patterns of frictional torque. It was found that the globally integrated frictional torque turned from positive to negative in 1972, suggesting that angular momentum was transferred from the earth to the atmosphere before 1972, but from the atmosphere to the earth thereafter. The global frictional torque steadily declined from 1948 to 1994, but has been increasing since 1995. It was also found that the global frictional torque is mainly determined by the wind systems in the mid and low latitudes of the Southern Hemisphere (SH), where large changes in frictional torque occurred during the study period. Westerly wind increased continuously in the midlatitudes after 1948, while easterly wind decreased in the tropics of the SH after the 1980s.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Gong, He UNSPECIFIED UNSPECIFIED UNSPECIFIED Huang, Mei UNSPECIFIED UNSPECIFIED UNSPECIFIED Zhu, Lin UNSPECIFIED UNSPECIFIED UNSPECIFIED Guo, Shengli UNSPECIFIED UNSPECIFIED UNSPECIFIED Shao, Yaping UNSPECIFIED orcid.org/0000-0002-2041-5479 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-285007
DOI:	10.1007/s13351-015-5066-y
Journal or Publication Title:	J. Meteorol. Res.
Volume:	30
Number:	1
Page Range:	S. 128 - 135
Date:	2016
Publisher:	SPRINGER HEIDELBERG
Place of Publication:	HEIDELBERG
ISSN:	2198-0934
Language:	English
Faculty:	Faculty of Mathematics and Natural Sciences
Divisions:	Faculty of Mathematics and Natural Sciences > Department of Geosciences > Institute for Geophysics and Meteorology
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ATMOSPHERIC ANGULAR-MOMENTUM; MADDEN-JULIAN OSCILLATION; CYCLE; BUDGET Multiple languages Meteorology & Atmospheric Sciences Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/28500