Estimating Sheet Flow Velocities Using Quinine as a Fluorescent Tracer: Bare, Mulched, Vegetated and Paved Surfaces

Estimating the Structure of Textured Surfaces Using Local Affine Flow

This paper describes a novel approach for recovering the structure and motion of a rigid textured surface from an image sequence. Camera focal length is also recovered, yielding metric estimates of the structure without the need for pre-calibration. The key innovation is the use of local affine flow parameters as the measurements within an extended Kalman filter (EKF) estimation framework, in c...

Fluorescent Sand as a Tracer of Fluvial Sediment

.-_---___-------------------_Introduction. ___________________________ Acknowledgments__ ____________________ Methods used in this study_____________ Coating of grains with fluorescent paint. Sampling of stream sand____________ Sample processing.__________________ The experiment_______________________ Results_-_-______---__-____--_-----___ Page El 1 2 2 2 2 2 3 3 Results Continued Relation of g...

Evapotranspiration of Partially Vegetated Surfaces

Characterising Heterogeneous Vegetated Surfaces Using Multiangular Satellite Data

Bidirectional Reflectance Distribution Functions (BRDF) seek to represent variations in surface reflectance resulting from changes in a satellite’s view and illumination angles. BRDF representations have been widely used to assist in the characterisation of vegetation. The resulting BRDF represents a spatial integral of all the individual surface features present in a pixel. To fully understand...

Using seafloor heat flow as a tracer to map subseafloor fluid flow in the ocean crust

We describe how seafloor heat flow is determined, review current understanding of advective heat loss from oceanic lithosphere, and present results from three field areas to illustrate how heat flow measurements are used (along with complementary data) to resolve fluid flow rates and patterns. Conductive heat flow through much of the seafloor is lower than predicted by lithospheric cooling mode...