4 Empirical Orthogonal Function (EOF) Analysis is commonly used in the climate sciences 5 and elsewhere to describe, reconstruct, and predict highly dimensional data fields. When 6 data contain a high percentage of missing values (i.e. “gappy”), alternate approaches must 7 be used in order to correctly derive EOFs. The aims of this paper are to assess the accuracy 8 of several EOF approaches in...

In the revised version, we emphasized new results from EOF analysis and Lagrangian approach. Following sentence is added in the abstract: “The EOF analysis indicated that these diurnal variations over the African continent seem to be closely related to continental-scale daytime solar heating and topography. On the other hand, advection effect on the diurnal variation appeared to be minor becaus...

The present work is an analytical and experimental study of electroosmotic flow (EOF) in cylindrical capillaries with nonuniform wall surface charge (zeta-potential) distributions. In particular, this study investigates perturbations of electroosmotic flow in open capillaries that are due to induced pressure gradients resulting from axial variations in the wall zeta-potential. The experimental ...

External optical feedback (EOF) has great impacts on the properties of lasers. It influences stable operation However, various applications based lasers with EOF have been developed. One typical example is self-mixing interferometry technology, where modulated steady-state laser intensity utilized for sensing and measurement. Other works show that dynamics can also be used sensing, in this case...

Atmospheric response to SST variability was estimated using generalized equilibrium feedback analysis (GEFA) in the SST EOF space with synthesis data from an idealized climate model. Results show that the GEFA atmospheric response to the leading SST EOF modes is much more accurate and robust than the GEFA feedback matrix in physical space. Therefore, GEFA provides a practical method for assessi...

Abstract Interannual variability of Mediterranean evaporation and its links to regional climate during summer are investigated based on data from the Woods Hole Oceanographic Institution dataset. An EOF (Empirical Orthogonal Function) analysis performed monthly means (i.e., separately for June, July, August, September time series) revealed two leading modes variability, characterized by monopol...

A poor repeatability of migration times caused by the fluctuations of electroosmotic flow (EOF) is an inherent weakness of capillary electrophoresis. Most researchers endeavor to prevent this problem using relative migration times or various capillary coatings which are expensive and not easy in comparison. Herein, we present an original approach to this problem: we apply a model sample designe...

Neural network analyses based on the self-organizing map (SOM) and the growing hierarchical selforganizing map (GHSOM) are used to examine patterns of the sea surface temperature (SST) variability on the West Florida Shelf from time series of daily SST maps from 1998 to 2002. Four characteristic SST patterns are extracted in the first-layer GHSOM array: winter and summer season patterns, and tw...