Flows in the solar convection zone

Research output: Chapter in Book/Report/Conference proceedingChapter


The Solar Oscillation Investigation -Michelson Doppler Imager (SOI/MDI) experiment on SOHO and ground-based helioseismic networks (GONG, MWO, BBSO, TON) have provided new interesting results on the differential rotation and flows in the solar convection zone. Accurately measured frequency splitting has allowed us to detect the zonal shear flows associated with the ‘torsional oscillations? in the upper convection zone and also study the evolution of these flows during the current solar minimum. The new data have also revealed anomalously slow rotation and other interesting variations of the differential rotation at high latitudes, and provided important insight into the structure and dynamics of the transition layer (‘tachocline’) at the bottom of the convection zone. With the new method of time-distance solar tomography it has become possible to study meridional circulation and asymmetries in the differential rotation in the convection zone. This method has also been employed for probing the structure of supergranulation and internal flows associated with sunspots and emerging magnetic flux. These and other new developments in helioseismology open important prospects for understanding the mechanisms of generation of solar magnetic fields.

Original languageEnglish (US)
Title of host publicationMagnetic Helicity in Space and Laboratory Plasmas, 1999
EditorsRichard C. Canfield, Alexei A. Pevtsov, Michael R. Brown
PublisherBlackwell Publishing Ltd
Number of pages9
ISBN (Electronic)9781118664476
ISBN (Print)9780875900940
StatePublished - 1999
Externally publishedYes

Publication series

NameGeophysical Monograph Series
ISSN (Print)0065-8448
ISSN (Electronic)2328-8779

All Science Journal Classification (ASJC) codes

  • Geophysics


Dive into the research topics of 'Flows in the solar convection zone'. Together they form a unique fingerprint.

Cite this