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The radiocarbon record that has been extended from 7199 BC to 1891 AD is of fundamental importance to understand century-scale variations of solar activity. We have, therefore, studied how to extract ...
Microstructure induced nonlinearity of unconsolidated rocks as related to seismic diagnostic problems
Microstructure induced nonlinearity unconsolidated rocks seismic diagnostic problems
2009/11/13
Manifestations of the so-called structure induced nonlinearity are considered for the case of a granular medium, the latter being a generally accepted model of nonconsolidated rocks in seismics. The c...
Enhancing predictability by increasing nonlinearity in ENSO and Lorenz systems
predictability nonlinearity ENSO Lorenz systems
2009/11/2
The presence of nonlinear terms in the governing equations of a dynamical system usually leads to the loss of predictability, e.g. in numerical weather prediction. However, for the El Niño-Sout...
Multivariate analysis of nonlinearity in sandbar behavior
Multivariate analysis nonlinearity sandbar behavior
2009/10/30
Alongshore sandbars are often present in the nearshore zones of storm-dominated micro- to mesotidal coasts. Sandbar migration is the result of a large number of small-scale physical processes that are...
The effect of third-order nonlinearity on statistical properties of random directional waves in finite depth
third-order nonlinearity statistical properties random directional waves finite depth
2009/10/30
It is well established that third-order nonlinearity produces a strong deviation from Gaussian statistics in water of infinite depth, provided the wave field is long crested, narrow banded and suffici...