The winds are known well enough for the calculation of atmospheric angular momentum with a satisfactory accuracy. (judithcurry.com)
They compared those events with changes in the Global Wind Oscillation (GWO) index, a collection of climate and weather information that measures atmospheric angular momentum, or the degree of waviness in the jet stream. (sciencedaily.com)
Effects of climate change scenarios on wind regimes and atmospheric mass distribution, and consequent atmospheric angular momentum effects (aer.com)