American Meteorological Society

About: American Meteorological Society is a nonprofit organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Climate change & Global warming. The organization has 83 authors who have published 74 publications receiving 1026 citations.

TV Weathercasters’ Views of Climate Change Appear to Be Rapidly Evolving

Abstract: Findings from the most recent surveys of TV weathercasters—which are methodologically superior to prior surveys in a number of important ways—suggest that weathercasters’ views of climate change may be rapidly evolving. In contrast to prior surveys, which found many weathercasters who were unconvinced of climate change, newer results show that approximately 80% of weathercasters are convinced of human-caused climate change. A majority of weathercasters now indicate that climate change has altered the weather in their media markets over the past 50 years, and many feel there have also been harmful impacts to water resources, agriculture, transportation resources, and human health. Nearly all weathercasters—89%—believe their viewers are at least slightly interested in learning about local impacts. The majority of weathercasters are interested in reporting on local impacts, including extreme precipitation and flooding, drought and water shortages, extreme heat events, air quality, and harm to local w...

Stark-ladder resonances in piezoelectric composites

Abstract: In this paper we introduce a piezoelectric composite medium. The composite shows a series of resonances similar to the Stark-ladder resonances originally observed in the propagation of electrons through crystals in a dc electric field. These resonances appear when shear horizontal and surface waves propagate through a special piezoelectric composite medium consisting of N piezoelectric layers, each layer being a material of hexagonal 6mm symmetry. For periodic piezocomposites, we obtain a band structure as expected. However, when the periodicity is broken by adding a linear term in the values of the piezoelectric parameters of the layers, the band structure is destroyed and, in certain cases, resonances of Stark-ladder type appear instead. A 4×4 transfer matrix approach is used to calculate the response of the composite under electromechanical perturbations. The response is studied as a function of the properties of the different materials, width of the layers, wave frequency, and angle of incidence. Numerical results for the electric potential and for the displacement of the surface of the last layer of the composite are presented showing the existence of Stark-ladder resonances.

A linear solution to the effective four-dimensionality problem

Abstract: In this note we formalize certain aspects of observation processin an attempt to link the logic of the observer with properties of theobservablesstructures. Itisshownthatan observerwithBoolean logicperceives her environment as a four-dimensional Lorentzian manifold. Introduction. Topos theory ([1], [6], [7], [2], [4], [3]) offers an independent (of the set the-ory) approach to the foundations of mathematics. Topoi are categories withset-like objects, function-like arrows and Boolean-like logic algebras. Han-dling these generalized sets and functions in a topos may differ from thatin classical mathematics (i.e. the topos Set of sets): there are non-classicalversions of mathematics, each with its non-Boolean version of logic. Onepossible view on topoi is this: abstract worlds, universes for mathematicaldiscourse, inhabitants (observers) of which may use non-Boolean logics intheir reasoning. From this viewpoint the main business of classical physicsis to construct models of the universe with a given bivalent Boolean modelof the observer, and choose the most adequate one. In a sense, our task isinverse: with a given model of the universe, to construct models of the ob-server, and find out how the observer’s perception of the universe changes if1

Computers and classification systems

Abstract: Published experiences dealing with the use of data processing equipment in conjunction with classification systems, particularly the UDC, are reviewed. Earlier conclusions, generalized from experience with punched card equipment, were too pessimistic. Difficulties in handling UDC notation in computer systems and methods for overcoming them are discussed. Ways in which computers can aid in studying, improving, and using classification systems are discussed. Experience at Meteorological and Geoastrophysical Abstracts is cited.

Impact of the Climate Matters Program on Public Understanding of Climate Change

Abstract: Climate Matters is a localized climate change reporting resources program developed to support television (TV) weathercasters across the United States. Developed as a pilot test in one media market in 2010, it launched nationwide in 2013; in the autumn of 2019 more than 797 weathercasters were participating in the program. In this paper we present evidence of the impact of the Climate Matters program on Americans’ science-based understanding of climate change. We analyzed three sets of data in a multilevel model: 20 nationally representative surveys of American adults conducted biannually since 2010 (n = 23 635), data on when and how frequently Climate Matters stories were aired in each U.S. media market, and data describing the demographic, economic, and climatic conditions in each media market. We hypothesized that 1) reporting about climate change by TV weathercasters will increase science-based public understanding of climate change and 2) this effect will be stronger for people who pay more attention to local weather forecasts. Our results partially support the first hypothesis: controlling for market-level factors (population size, temperature, political ideology, and economic prosperity) and individual-level factors (age, education, income, gender, and political ideology), there is a significant positive association between the amount of Climate Matters reporting and some key indicators of science-based understanding (including that climate change is occurring, is primarily human caused, and causes harm). However, there was no evidence for the second hypothesis. These findings suggest that climate reporting by TV weathercasters, as enabled by the Climate Matters program, may be increasing the climate literacy of the American people.