A multidisciplinary study of earth resources imagery of Australia, Antarctica and Papua, New Guinea

The author has identified the following significant results. A thirteen category recognition map was prepared, showing forest, water, grassland, and exposed rock types. Preliminary assessment of classification accuracies showed that water, forest, meadow, and Niobrara shale were the most accurately mapped classes. Unsatisfactory results, were obtained in an attempt to discrimate sparse forest cover over different substrates. As base elevation varied from 7,000 to 13,000 ft, with an atmospheric visibility of 48 km, no changes in water and forest recognition were observed. Granodiorite recognition accuracy decreased monotonically as base elevation increased, even though the training set location was at 10,000 ft elevation. For snow varying in base elevation from 9400 to 8420 ft, recognition decreases from 99% at the 9400 ft training set elevation to 88% at 8420 ft. Calculations of expected radiance at the ERTS sensor from snow reflectance measured at the site and from Turner model calculations of irradiance, transmission and path radiance, reveal that snow signals should not be clipped, assuming that calculations and ERTS calibration constants were correct

A-2000: Close air support aircraft design team

The US Air Force is currently faced with the problem of providing adequate close air support for ground forces. Air response to troops engaged in combat must be rapid and devastating due to the highly fluid battle lines of the future. The A-2000 is the result of a study to design an aircraft to deliver massive fire power accurately. The low cost A-2000 incorporates: large weapons payload; excellent maneuverability; all weather and terrain following capacity; redundant systems; and high survivability

No Girls Allowed: Television Boys’ Clubs as Resistance to Feminism

This article analyzes the male-only spaces present in four television series, FX’s The Shield, Nip/Tuck , Rescue Me, and ABC’s Boston Legal, which each include a gendered territory as a recurring feature. I argue that these homosocially segregated environments enforce boundaries against women and shelter intense bromance relationships that foreclose romantic relationships of any kind, acting as physical incarnations of troubling retrograde sexual politics and ideologies. I also assert that the “boys’ clubs” in which these narratives take place, enabled and empowered by the aesthetic dimensions of architecture and design, help establish workplace patriarchy as commonplace, reasonable, and benign. This article reveals that in these television boys’ clubs, problematic gender ideologies are protected and celebrated, misogyny is naturalized, and patriarchal beliefs and behaviors legitimized

The celebritization of indigenous activism:Tame Iti as media figure

In recent years, a number of indigenous activists have gained celebrity status in ways that carry interesting implications for contemporary cultural politics. This article focuses on the celebrification of Tame Iti, arguably Aotearoa/New Zealand’s best-known Māori activist, within a wider cultural context characterized by intensifying media convergence, an expanding politics of decolonization, and the continuing elaboration of global indigenous mediascapes, including the Māori Television Service. We draw on forms of conjunctural analysis to explore how wider historical forces and social dynamics come to be embodied in particular flesh and blood individuals, who are thereby constituted as resonant media figures, who operate as both objects and agents of struggle, and who at once intervene in and shape, while also being shaped by, key terrains of contemporary discourse and cultural politics

Definition of the 2005 flight deck environment

A detailed description of the functional requirements necessary to complete any normal commercial flight or to handle any plausible abnormal situation is provided. This analysis is enhanced with an examination of possible future developments and constraints in the areas of air traffic organization and flight deck technologies (including new devices and procedures) which may influence the design of 2005 flight decks. This study includes a discussion on the importance of a systematic approach to identifying and solving flight deck information management issues, and a description of how the present work can be utilized as part of this approach. While the intent of this study was to investigate issues surrounding information management in 2005-era supersonic commercial transports, this document may be applicable to any research endeavor related to future flight deck system design in either supersonic or subsonic airplane development

In-flight radiometric calibration of the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS)

A reflectance-based method was used to provide an analysis of the in-flight radiometric performance of AVIRIS. Field spectral reflectance measurements of the surface and extinction measurements of the atmosphere using solar radiation were used as input to atmospheric radiative transfer calculations. Five separate codes were used in the analysis. Four include multiple scattering, and the computed radiances from these for flight conditions were in good agreement. Code-generated radiances were compared with AVIRIS-predicted radiances based on two laboratory calibrations (pre- and post-season of flight) for a uniform highly reflecting natural dry lake target. For one spectrometer (C), the pre- and post-season calibration factors were found to give identical results, and to be in agreement with the atmospheric models that include multiple scattering. This positive result validates the field and laboratory calibration technique. Results for the other spectrometers (A, B and D) were widely at variance with the models no matter which calibration factors were used. Potential causes of these discrepancies are discussed

Short-term effects of wildfire on Sierra Nevada bighorn sheep habitat ecology

We studied changes in vegetation and habitat selection by endangered Sierra Nevada bighorn sheep (Ovis candensis sierrae; hereafter Sierra bighorn) for 2 years following wildfire on winter ranges in eastern California. We hypothesized that wildfire would change both forage availability and predation risk. Green forage biomass on Sierra bighorn winter ranges rebounded quickly from wildfire. Within 2 years green forage biomass was equal in burned and unburned areas, although total forage biomass was greater in unburned areas. Plants in the burn had 3% greater crude protein but equivalent digestibility and phenology. Forage composition in burned areas was forb dominated compared with unburned areas that were shrub dominated. Visibility, a measure of predation risk, was 9% greater in burned areas at a 5 m radii compared with unburned areas. We found no change in fecal nitrogen between Sierra bighorn in burned and unburned areas but there was a shift to higher diet composition of forbs in the burn. We evaluated Sierra bighorn resource selection using seasonal resource selection functions that included spatiotemporal models of forage biomass and spatial models of predation risk by cougars (Puma concolor), the main predator of Sierra bighorn. In the first year post-wildfire, Sierra bighorn increased selection for new growth herbaceous biomass in response to the reduced biomass caused by wildfire. While wildfire initially reduced total forage biomass it also created pockets of the highest new forb biomass in areas of high cougar use. These pockets attracted Sierra bighorn causing an increase in overlap with cougars in winter 2008. Sierra bighorn showed consistent selection to be near escape terrain and remained closer to escape terrain in areas of high cougar use compared to areas with low cougar use. By spring 2008 and winter and spring of 2009 Sierra bighorn strongly selected total forage biomass where cougar use was low and in areas of high cougar use, Sierra bighorn avoided total forage biomass. As a result Sierra bighorn overlap with cougar use was reduced. We advise management to consider the effects of fire on both forage availability and predation when implementing prescribed burns to benefit ungulates

The habitat and feeding ecology of the klipspringer Oreotragus Oreotragus (Zimmermann, 1973) in two areas of the Cape Province

The study investigates the habitat preferences and ecological adaptations of the klipspringer in the Namaqualand and the southern Cape mountains. Klipspringer social organisation was found· to consist of a monogamously mated pair defending a territory which varies in size according to rainfall. The pair bond is very strong and role differentiation occurs, with the male spending more time than the female in anti-predator vigilance. Anatomical and physiological adaptations include a modified digit structure, kidneys with a high concentrating ability, and a unique pelage for insulation. Seasonal variations in activity patterns and feeding preferences are discussed in relation to weather conditions, metabolic requirements and possible plant defensive mechanisms. Klipspringers avoid competition with other small antelope by preferring more rocky terrain, and possible methods of food separation from dassies are suggested. The significance of all these factors in relation to the conservation and management of klipspringer populations is examined.Dissertation (MSc)--University of Pretoria, 2011.Zoology and Entomologyunrestricte

Addition of the direct radiative effect of atmospheric aerosols into the Regional Atmospheric Modeling System (RAMS), The

Includes bibliographical references.DoD Center for Geosciences/Atmospheric Research under grant DAAD19-02-2-0005