Amazing finding from Alex’s group at NASA JPL
- Konopliv, Alex S., et al. “Detection of the Chandler Wobble of Mars From Orbiting Spacecraft.” Geophysical Research Letters 47.21 (2020): e2020GL090568.
What’s also predictable is that the JPL team probably have a better handle of what causes the wobble on Mars than we have on what causes the Chandler wobble (CW) here on Earth. Such is the case when comparing a fresh model against a stale model based on an early consensus that becomes hard to shake with the passage of time.
Of course, we have our own parsimoniously plausible model of the Earth’s Chandler wobble (described in Chapter 13), that only gets further substantiated over time.
The latest refinement to the geoenergy model is the isolation of Chandler wobble spectral peaks related to the asymmetry of the northern node lunar torque relative to the southern node lunar torque.Continue reading