The role of resonant wind forcing in the ocean boundary layer was examined using an ocean large-eddy simulation (LES) model. The model simulates turbulent flow in a box, measuring ~100–300 m on a side, whose top coincides with the ocean surface. Horizontal boundary conditions are periodic, and time-dependent wind forcing...
The investigation of the consequences of trying to blend tropical Pacific observations from the Tropical Atmosphere–Ocean (TAO) array into the dynamical framework of an intermediate coupled ocean–atmosphere model is continued. In a previous study it was found that the model dynamics, the prior estimates of uncertainty in the observations, and...
Recent turbulence measurements over a small bank on the continental shelf off Oregon reveal a previously undetected site for intense mixing of the coastal ocean. The flow is hydraulically controlled and turbulence diffusivities over the bank are more than 100 times greater than estimates made on the shelf away from...
The influence of anthropogenic aerosols, in the form of ship exhaust effluent, on the microphysics and radiative properties of marine stratocumulus is studied using data gathered from the U.K. Met. Office C-130 and the University of Washington C-131A aircraft during the Monterey Area Ship Track (MAST) experiment in 1994. During...
Las plantas que reciben la cantidad correcta de agua a lo mejor serán sanas y productivas. En Oregon, hay que regar las plantas durante el verano porque hay poca lluvia durante esa época. Al planear su huerto o jardín, considere cómo se suplirá el agua que sus plantas necesiten.
Hay...
Las malas hierbas compiten con las plantas cultivadas para el agua, la luz, y los nutrientes. Algunas también abrigan insectos y enfermedades que pueden dañar las plantas. Si usted controla las malas hierbas, sus plantas tendrán más oportunidad de crecer bien y producir a su
potencial. Hay varios métodos de...
The cereal leaf beetle (CLB), a serious pest of cereals and grasses, was found in Oregon in 1999. As a result, California has imposed a quarantine on certain agricultural products from Oregon. CLB can cause considerable damage to small-grain crops. Yield losses of up to 23 percent in winter wheat...
Many garden and landscape plants
are susceptible to one or more plant
diseases. Diseases can reduce the yield
of fruit and vegetable crops and disfigure
ornamental trees, shrubs, and
flowers.
Young trees (those with a trunk
diameter of less than 6 inches) can
benefit greatly from regular applications
of fertilizer. Research has shown that
when these trees receive nitrogen
fertilizer, they grow faster, develop a
denser canopy, and stay green longer
into the fall.