Kilauea Eruption 12/23/24

[TomK]

I find it interesting.. and wonder.. does that change in tilt that happens because of the heating and cooling of the atmosphere actually account for more magma to flow, and if so then the total tilt over time as plotted is directly tied to magma accumulation regardless of the atmospheric contribution? Or, is that illusionary in that there is no increase in flow and as such the overall amount of magma accumulating, or more specifically ground tilting, is less than the end point of the tilt plot suggests? In other words, do we have to subtract all that atmospheric activity to get a true sense of how much magma is accumulating over time?

I'm not sure I understand the premise here. During the day, the temperature rises, which means things expand, and at night, it cools down, so stuff contracts. This includes rocks and the instruments themselves at the surface. Kilauea's underlying expansion and contraction are due to increases and decreases in the magma pressure beneath the surface. I don't see where the temperature of the atmosphere comes into this.

Are the data from the USGS tilt monitors corrected for diurnal temperature variations?