Air Quality

Air Quality Essay Air Quality Dispersion Today, the air quality aspect of ARL research is by far the dominant theme, but distinctions among the themes remain somewhat vague. For example, the models developed for emergency response purposes are among those used for air quality prediction. The Air Quality and Dispersion theme is one of the strongest ties that binds ARLs components together. ARL is not heavily involved in the pure science of the business. Instead, ARL focusses on the need to assemble integrated understanding and models from all available sources, to develop the capability to predict changes in air quality that will follow changes in emissions, or that will occur as a result of meteorological factors. ARL air quality research extends to studies of atmospheric deposition essentially the coupling between the atmospheric pollutant environment and the surface below. ARL now operates the only research-grade deposition monitoring network in the nation: AIRMoN (the Atmospheric Integrated Resear ch Monitoring Network). Programs. Air Quality and Deposition Modeling Air quality models have demanded this kind of coupling for a considerable time. As a result, there are now well-developed descriptions of PBL processes in use in air quality models. ARL research products are now receiving a wider audience, within the mesoscale modeling community at large. It is recognized that modern models are invariably data assimilative, and that modern monitoring programs require coupled modeling activities for data interpretation. Model development programs are supported by a vigorous physical modeling program, located at Research Triangle Park, NC. ARL operates one of the nations major fluid modeling facilities, at which studies are conducted on the effects of mountains, buildings, and other surface obstacles on atmospheric flow patterns. Integrated Monitoring, and AIRMoN The Atmospheric Integrated Research Monitoring Network is an atmospheric component to the overall national integrated monitoring initiative that is currentl y evolving. AIRMoN has two principal components: wet and dry deposition. ARL presently focuses its research attention on ? the measurement of precipitation chemistry with fine time resolution (AIRMoN-wet), ? the development of systems for measuring deposition, both wet and dry, ? the measurement of dry deposition using micrometeorological methods (AIRMoN-dry), ? the development of techniques for assessing air-surface exchange in areas (such as specific watersheds) where intensive studies are not feasible, and ? the extension of local measurements and knowledge to describe areal average exchange in numerical models. Aerosols and visibility ARL specializes in the geochemical cycling of atmospheric aerosols, particularly the particulate component. Research groups in ARL concentrate on (a) the injection of dust and soil particles into the atmosphere, (b) the transport of particles through the atmosphere, the production of aerosol particles in the air by chemical reactions, (d) the scavenging of airborne particles by clouds and their subsequent deposition in precipitation, (e) the dry deposition of particles as air moves across different landscapes, and (f) the assembly of numerical models. Specific topics include ? the injection of dust and soil particles into the atmosphere, ? the long-range transport of particles through the atmosphere, ? the production of aerosol particles in the air by chemical reactions, ? the scavenging of airborne particles by clouds and their subsequent deposition in precipitation, and ? the dry deposition of particles as air moves across different landscapes. International ARL serves as the leader of the U.S. multi-agency effort to impose formalized and uniform quality assurance programs on the many national air quality and deposition monitoring networks that are operational around the globe. How are ozone concentrations calculated with Hysplit? Ozone is then calculated from the photostationary state equation. The IER solution is used in the operational Hysplit ozone calculation. The pollutant particles are tracked and air concentrations for each species are computed each advection time step following the usual lagrangian approaches. At the conclusion of the advection step the GRS differential equations are solved on the concentration grid (Eulerian solution), and the change of concentration of each pollutant species is applied to the pollutant mass on the particles that contributed concentration to each grid cell. -Eulerian chemistry solution on the grid dc/dt = {Equations 1 7} 1) ROC + hv -* RP + ROC Nitric oxide-ozone titration reacti on 5) RP + RP -* RP k5 = 10200 Sink for nitrogen dioxide to stable gaseous nitrates

Leadership in the Globalised Firms Research Paper

Leadership in the Globalised Firms - Research Paper Example The research paper "Leadership in the Globalised Firms" discusses different types of internal and external challenges of the globalized firms. These threats are reducing the potentials of growth and sustainability in the international market. Leadership is one of the key traits of the managers and administrative level of the firms.There are different types of leadership ethics like the golden rule, stakeholder approach to ethics and four-way test. Being the global leader, I use stakeholders approach in order to maintain a balance between the welfare of both senior management and subordinates. In this scenario, I have to follow the order of senior management as well as I have to answer the query of the employees. I cannot inform the employees regarding the reduction in pending staffing by 10%, as it will harm the motivational level of staff or team members. I will try to react against rumors in a positive manner. In the staff meeting, it is one of the most crucial ethical issues. I wi ll inspire my staff to provide their best contribution and fight to sustain in the firm. It will be a healthy competition, which will enhance the overall performance of the firm. This ethical strategy will help me to maintain my responsibility from both ends. Global leaders are adopting a different type of approaches to managing diversity among their followers and subordinates. The global organizations are facing an intense challenge in terms of maintaining cross cultural diversity and socio economic differentiation among the people.

Economics is said to be concerned with the central problem of scarcity Essay

Economics is said to be concerned with the central problem of scarcity and infinite wants - Essay Example The three basic factors of economics are scarce in nature and thus they initiate the necessity of taking up a research approach on the factors that influence the problem in the economies. Along with the discussion on the factors that create the problem, the role that market mechanism plays in sorting the problem will be reviewed in this research paper as well (Case & Fair, 2004). 2.0 Explanation of the Research Statement The explanation of the research statement that considers economics to be concerned with the central problem of scarcity and infinite wants will be presented in this section of the research paper. 2.1 Problem of Scarcity The problem concerned with scarcity is considered to be the most essential in the arena of economic. The problem is derived on the basis of the assumption that goods or resources are finite whereas, desires of the human beings are infinite. The concept of economics is concerned with the alternatives and their outcomes and concentrates on means through which societies and individuals make allocation of their finite resources for trying to satisfy the infinite wants relatively (Lipsey & Chrystal, 2007). Scarcity takes place because the relatively infinite wants of the individuals cannot be completely set-off from the utilisation of limited resources that are available. A good becomes scarce if individuals and society cannot access them freely and thus the good directs a positive price. The problem of scarcity influences all the decision makers to resolve three basic questions of the economics: What will be manufactured? How the process of manufacturing will take place? Who will be using the goods that will be manufactured? Source: Mankiw & Taylor, 2006. Goods are the answers to the first question. Production is the answer to the second question that occurs when technology and knowledge are used for application of the energy to objects for making them more valuable. The alternatives’ opportunity cost provides answer to the t hird question which is measured by the qualitative value of the best alternative that is sacrificed (The University of North Carolina, 2011). 2.2 Model of the Economic Problem of Scarcity The model of the problem of scarcity largely depends on the factor of efficiency. The workers, individuals, business houses, governments or the countries are normally faced with the problem of scarce economic resources. The level of efficiency is important for finding solution to the particular economic problem in concern and is measured by the factors as to how well the dwellers produce goods or services. Efficiency is also determined by the factors through which goods or services are produced at a lower cost or less resource are utilised for manufacturing a product or rendering service along with satisfying the wants of the consumers at the same time (SG Zilina, 2010). Source: (SG Zilina, 2010). The above model is a comprehensive depiction of the economic problem of scarcity that has shown the ev olution of the economic problems of scarcity and has even laid the way towards the resolution of the problem. The entire model is centrally located to the choices that the dwellers of the economy make for enhancing their level of efficienc