In situ measurements of water vapor and temperature from recent aircraft campaigns have provided evidence that the upper troposphere is frequently supersaturated with respect to ice. The peak relative humidities with respect to ice (RHI) occasionally approached water saturation at temperatures ranging from -40°C to -70°C in each of the...
A case study of new particle formation in the region downwind of a mesoscale convective system stretching across much of the central United States is presented. Airborne measurements were made of condensation nuclei (CN), cloud particle surface area, water vapor, and other gases. CN concentrations were greatly enhanced above and...
A three‐dimensional primitive‐equation model for application to the nearshore surf zone has been developed. This model, an extension of the Princeton Ocean Model (POM), predicts the wave‐averaged circulation forced by breaking waves. All of the features of the original POM are retained in the extended model so that applications can...
Dissolved organic matter (DOM) production was examined in axenic batch cultures of five coastal diatom species. For Chaetoceros decipiens, dissolved organic carbon (DOC) accumulated beginning in late exponential growth as a result of increased cell density. For Cylindrotheca closterium, DOC actually decreased in late exponential growth and reached zero by...
The fisheries sub-sector in Nigeria accounts for about 40% of animal protein in the diet and it contributed 4.74% of the agricultural share of the nation's GDP in 2003. Recently, demand for fish products has doubled as other sources of animal protein have become expensive due to pressure by the...
Access restrictions to traditionally-used resources, that are associated with the establishment of marine protected areas (MPA), often generate conflicts. Public participation in decision-making process has been widely recognised as a critical factor in legitimising conservation policy and enhancing its success. This paper discusses fishers involvement issues in the context of...
A new apparatus is presented that is capable of applying a constant fluid pressure at inflow and outflow boundaries. The apparatus can be refilled during operation and does not rely on an overflow mechanism. The device is constructed of two vessels, one that contains the delivered fluid and the other...
Around 100 commercial fish species are utilized by the trawl sector of the Australian South East Fishery, of which sixteen major species were brought into an ITQ management system in 1992. A revenue function approach is used to analyze catch, price and effort data for the period 1990-96, and to...
The propagation of incident coastal-trapped waves in the Gulf of California is investigated using a hydrostatic
primitive equation model. The behavior of idealized incident wave disturbances with different amplitudes and
time scales is examined. The incident wave disturbances propagate northward up-gulf along the east side with
no significant change. At...
An Eulerian analysis for wave forcing of three-dimensional (3D) wave-averaged mean
circulation in the surf zone is presented. The objective is to develop a dynamically
consistent formulation for applications in a 3D primitive equation model. The analysis is
carried out for the case of shallow-water linear waves interacting with wave-averaged...