Coherent Microwave Scattering Model of Marsh Grass

Effects of Marsh Grass on Diffusivity

The hydrodynamic processes associated with flow through vegetation have many implications for both natural and constructed wetlands. This study examined the effect of marsh grass on mixing rates. A flow visualization study was performed, using a laser light sheet and a video camera to obtain images of a plume of fluorescent dye. The study was performed in a laboratory flume, using wooden dowels...

A microwave scattering model for layered vegetation

uA microwave scattering model has been developed for layered vegetation based on an iteratlve solution of the radiative transfer equation up to the second order to account for multiple scattering within the canopy and between the ground and the canopy'. The model is designed to operate over a wide frequency range for both deciduous and coniferous forest and to account for th_ branch size distri...

Microwave Scattering Model for Nonuniform Forest Canopies

Nitrogen inputs promote the spread of an invasive marsh grass.

Excess nutrient loading and large-scale invasion by nonnatives are two of the most pervasive and damaging threats to the biotic and economic integrity of our estuaries. Individually, these are potent forces, but it is important to consider their interactive impacts as well. In this study we investigated the potential limitation of a nonnative intertidal grass, Spartina alterniflora, by nitrogen...

Comparative Characteristics of Coherent and Incoherent Microwave Scattering in Dense Inhomogeneous Layers

Results of experiments on measuring forward scattering of waves in the range 88–100 GHz propagating in dense inhomogeneous layers consisting of grainy polymer materials are presented. Experiments were carried out with coherent and incoherent radiation. A comparison of the results demonstrates that incoherent radiation averages the depolarization effects and is preferable in comparison with cohe...