Articles | Volume 22, issue 14
Research article
22 Jul 2022
Research article |  | 22 Jul 2022

Radar observations of winds, waves and tides in the mesosphere and lower thermosphere over South Georgia island (54° S, 36° W) and comparison with WACCM simulations

Neil P. Hindley, Nicholas J. Mitchell, Neil Cobbett, Anne K. Smith, Dave C. Fritts, Diego Janches, Corwin J. Wright, and Tracy Moffat-Griffin

Data sets

University of Bath: King Edward Point Skiymet meteor radar data (2016–2020) N. J. Mitchell

MLS/Aura Level 2 Temperature V005 M. Schwartz, N. Livesey, and W. Read

NCAR CESM2-WACCM model output prepared for CMIP6 CMIP amip ( G. Danabasoglu

Model code and software

nhindley/acp-2021-981: Analysis and Figure code for ACP publication acp-2021-981 Hindley et al., (2022) N. P. Hindley

Short summary
We present observations of winds in the mesosphere and lower thermosphere (MLT) from a recently installed meteor radar on the remote island of South Georgia (54° S, 36° W). We characterise mean winds, tides, planetary waves, and gravity waves in the MLT at this location and compare our measured winds with a leading climate model. We find that the observed wintertime winds are unexpectedly reversed from model predictions, probably because of missing impacts of secondary gravity waves in the model.
Final-revised paper