Remotely sensed images including LANDSAT, SPOT, NAIP orthoimagery, and LiDAR and relevant processing tools can be used to predict plant stomatal conductance (gs), leaf area index (LAI), and canopy temperature, vegetation density, albedo, and soil moisture using vegetation indices like normalized difference vegetation index (NDVI) or soil adjusted vegetation index (SAVI) developed with near infr...

After about a decade invested in development of plant-based techniques to diagnose tree water status in orchards, midday Stem Water Potential (SWP) is being adopted at the farm level as a irrigation management tool in orchard crops such as walnut and almond. An alternative technique referred to as midday, shaded Leaf Water Potential (LWP) has also been developed for use at the farm level. Effec...

Mapping environmental radioactivity from field gamma-ray spectrometry is a valuable tool for understanding and interpreting pedological control of naturally occurring radioactivity. Soil properties and water content affect the behaviour of natural radioactivity. The main aim of the study were to explore and map the activity of three naturally occurring radionuclides (Th, U, K) in an olive orcha...

A simple linear mixing model of heterogeneous soil-vegetation system and retrieval of component temperatures from directional remote sensing measurements by inverting this model is evaluated in this paper using observations by a thermal camera. The thermal camera was used to obtain multi-angular TIR (Thermal Infra-Red) images over vegetable and orchard canopies. A whole thermal camera image was...

Similar in nature to an image mosaic, a photo-stencil is a rendering of a binary target image by an arrangement of smaller binary stencil images. This paper presents a method for efficiently creating photo-stencil images, making use of the Fast Fourier Transform to speed up costly computations. The resulting photo-stencils are a new and interesting form of nonphotorealistic rendering.

Vegetation is a climate modifier: It primary modifier, such as the Amazon rain forest, or secondary agricultural fields of Pannonian lowlands in Central Europe. At periods winter crop spring renewal and start orchard growing season, enhanced evapotranspiration shifts energy balance partitions from sensible toward latent heat flux. This surface flux alteration converges into boundary layer, it c...