Wetland interferometric synthetic aperture radar (InSAR) has been successfully applied to observe phase variations related to water level changes in aquatic environments with emergent vegetation. In this study, we evaluate the quadrant polarimetric Radarsat-2 (C-band) observations for the wetland InSAR applications by testing two datasets acquired over south Florida’s Everglades wetlands. The f...

The diurnal cycle of convective activity and cloudiness over Lake Victoria, is examined using infrared satellite data. The results indicate that geographically distinct patterns of convection occur. Maximum convective activity occurs over the northwestern quadrant of the lake and tends to occur during the night time. There is a similar pattern in the southwest but the convection is relatively i...

The multiplihedra · = (Mn)n≥1 form a family of polytopes originating in the study of higher categories and homotopy theory. While the multiplihedra may be unfamiliar to the algebraic combinatorics community, it is nestled between two families of polytopes that certainly are not: the permutahedra · and associahedra · The maps · ։ · ։ · reveal several new Hopf structures on tree-like objects nest...

Increased forest harvest with more whole-tree utilization can decrease base cations (BC) in soils and stream runoff. This paper analyses how reducing stream BC changes the capacity of a boreal stream network to buffer pH changes. We estimated change in stream pH during spring snowmelt in 60 locations throughout a 68 km2 boreal catchment in northern Sweden with different scenarios of BC removal ...

We prove several facts concerning Lipschitz percolation, including the following. The critical probability pL for the existence of an open Lipschitz surface in site percolation on Z with d ≥ 2 satisfies the improved bound pL ≤ 1−1/[8(d−1)]. Whenever p > pL, the height of the lowest Lipschitz surface above the origin has an exponentially decaying tail. For p sufficiently close to 1, the connecte...

La rivière Kan située au sud de Bouaké est soumise à une pression surtout urbaines. Depuis la crise militaro-politique 2010, des activités agricoles et pèche se sont développées autour ce cours d’eau. Les eaux usées rejetées directement dans le rivière. L’objectif cette étude d’évaluer l’impact socio-économiques sur partir d’une enquête terrain analyse physico-chimiques microbiologiques eaux. C...