The Airborne Prism Experiment (APEX) is currently being built as a demonstrator and calibrator for potential future European spaceborne imaging spectrometers (Itten et al., 1997, Schaepman et al., 2003). It allows the retrieval of traditional and new products for vegetation, geological, limnological and atmospheric sciences. The uniformity of pushbroom imaging spectrometers is affected by spect...

Paleoclimate time series are often irregularly sampled and age uncertain, which is an important technical challenge to overcome for successful reconstruction of past climate variability and dynamics. Visual comparison and interpolation-based linear correlation approaches have been used to infer dependencies from such proxy time series. While the first is subjective, not measurable and not suita...

Natural neighbour co-ordinates (Sibson co-ordinates) is a well-known interpolation scheme for multivariate data tting and smoothing. The numerical implementation of natural neighbour co-ordinates in a Galerkin method is known as the natural element method (NEM). In the natural element method, natural neighbour co-ordinates are used to construct the trial and test functions. Recent studies on NE...

We establish a new H\(^2\)-Korn’s inequality and its discrete analog, which greatly simplify the construction of nonconforming elements for linear strain gradient elastic model. The Specht triangle (Specht in Int J Numer Methods Eng 28:705–715, 1988) NZT tetrahedron (Wang et al. Math 106:335–347, 2007) are analyzed as two typical representatives robust sense that rate convergence is independent...

This paper compares two influential attempts at presenting a comprehensive framework of knowledge management. For each perspective the author examines theoretical foundations, highlights conceptual elements and themes, and discusses the role of information and information management. Ikujiro Nonaka and Hirotaka Takeuchi analyze the dynamics of knowledge creation, particularly the importance of ...

The complex method of interpolation, going back to Calderón and Coifman et al., on the one hand, and the Alexander–Wermer–Slodkowski theorem on polynomial hulls with convex fibers, on the other hand, are generalized to a method of interpolation of real (finite-dimensional) Banach spaces and of convex functions. The underlying duality in this method is given by the Legendre transform. Our result...

The optical constants of water ice have been determined in the near infrared from 4000 to 7000 cm(-1). Polycrystalline ice films with thickness as great as ~1164 mum were formed by condensation of water vapor on a cold silicon substrate at temperatures of 166, 176, 186, and 196 K. The transmission of light through the ice films was measured during their growth from 0 to 1164 mum over the freque...

Areal interpolation is the procedure of using known attribute values at a set of (source) areal units to predict unknown attribute values at another set of (target) units. Geostatistical areal interpolation employs spatial prediction algorithms, that is, variants of Kriging, which explicitly incorporate spatial autocorrelation and scale differences between source and target units in the interpo...