Gate-to-gate azimuthal shear

From Glossary of Meteorology

gate-to-gate azimuthal shear

Marked difference in Doppler velocity values at azimuthally adjacent range gates indicating the presence of the radial component of vorticity. Vorticity may be due to the presence of a tornado-sized vortex (tornadic vortex signature) or it may simply be caused by wind shear across a discontinuity boundary.

Copyright 2022 American Meteorological Society (AMS). For permission to reuse any portion of this work, please contact Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act (17 U.S. Code § 107) or that satisfies the conditions specified in Section 108 of the U.S.Copyright Act (17 USC § 108) does not require AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a website or in a searchable database, or other uses of this material, except as exempted by the above statement, require written permission or a license from AMS. Additional details are provided in the AMS Copyright Policy statement.