Depth scaling of shallow explosive source levels

Depth-Shifting of Shallow Water Guide Source Observations

Magmatic gas composition reveals the source depth of slug-driven strombolian explosive activity.

Strombolian-type eruptive activity, common at many volcanoes, consists of regular explosions driven by the bursting of gas slugs that rise faster than surrounding magma. Explosion quakes associated with this activity are usually localized at shallow depth; however, where and how slugs actually form remain poorly constrained. We used spectroscopic measurements performed during both quiescent deg...

A Scaling Result for Explosive Processes

We consider the asymptotic behavior of the following model: balls are sequentially thrown into bins so that the probability that a bin with n balls obtains the next ball is proportional to f(n) for some function f . A commonly studied case where there are two bins and f(n) = np for p > 1. In this case, one of the two bins eventually obtains a monopoly, in the sense that it obtains all balls thr...

Polarization lidar for shallow water depth measurement.

A bathymetric, polarization lidar system transmitting at 532 nm and using a single photomultiplier tube is employed for applications of shallow water depth measurement. The technique exploits polarization attributes of the probed water body to isolate surface and floor returns, enabling constant fraction detection schemes to determine depth. The minimum resolvable water depth is no longer dicta...

shallow depth correlation of the sediments in geology

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