Because of computational advances its evolution in relation to speed and memory capacity in recent years, along with adding the weather, the coupling between atmospheric and hydrological models has been the object of study in several studies in recent decades. The management of large river basins is determined by several variables, with the main system and the volume of river flows. Given volume water in a basin can be affected in different ways and many different factors, as the main factors having the variability in time and space of rainfall that produces immediate changes in the flow of a given system. As the results of large precipitation events directly affect the flow regimes, this work has as main objective the coupling of the hydrological model MGB - HPI with the WRF atmospheric model in an attempt to estimate flow in the basin of the Middle Rio Paraíba,. The rainfall data provided were simulated by WRF model and the observed rainfall and flow observed awarded by the National Water Agency - ANA, for 3 (three) station pluviometric and 4 (four) fluviometric respectively. The flow simulation was carried out hydrological rainfall-runoff model MGBIPH. Analyses were made in two steps: Kriging interpolation in KGM-normal rainfall and observed, and comparison between simulated hydrographs (rain predicted and observed) and observed (gauging stations). In the spatial correlation values were found in the order of 0.54 to 0.92 for normal rainfall and the observed one. The flow simulations with data generated by the WRF, were correlated with Pearson coefficients ranging between 0.46 and 0.56, representative values for this type of meteorological and hydrological study. Pierson coefficients obtained from simulations of flows of the observed data showed best correlations with values between 0.4 and 0.71. The coupling of hydrologic models (rainfall-runoff) and atmospheric models can be considered a useful technique to aid in prognosis prediction of extreme events. There is a perceived need for calibration of the atmospheric model, to become a real and effective tool in developing warning systems for flood basin of the Paraiba do Meio, among others, which will be analyzed later / Fundação de Amparo a Pesquisa do Estado de Alagoas / Devido o avanço computacional e sua evolução em relação à velocidade e capacidade de memória nos últimos anos, juntamente com ascendência das previsões meteorológicas, o acoplamento entre modelos atmosféricos e hidrológicos tem sido o objeto de estudo em diversas pesquisas nas ultimas décadas. O gerenciamento de grandes bacias hidrográficas é determinado por inúmeras variáveis, sendo a principal, o regime e volume das vazões dos rios. Como os resultados de grandes eventos de precipitação pluviométrica afetam diretamente nos regimes de vazão, este trabalho tem como o objetivo principal o acoplamento do modelo hidrológico MGB IPH com o modelo Atmosférico WRF na geração de vazão na Bacia do Rio Paraíba do Meio (AL/PE). Os dados de precipitação prevista foram simulados pelo modelo WRF e os de precipitação observada e vazão observada concedidos pela Agencia Nacional de Águas ANA, para 3(três) postos pluviométricos e 4 (quatro) fluviométricos, respectivamente. A simulação de vazão foi realizada no modelo hidrológico precipitação vazão MGB-IPH. As análises foram feitas de duas etapas: interpolação por Krigagem-KGM das precipitações previstas e observadas; comparação entre hidrogramas simulados a partir dos dados de precipitações previstas e observadas. Na correlação espacial foram encontrados valores na ordem de 0,54 para as precipitações previstas e 0,92 para as observadas. As simulações de vazões com dados gerados pelo WRF apresentaram testes significativos, com coeficientes de Pearson variando entre 0,46 a 0,56, valores representativos para este tipo de estudo meteorológico e hidrológico. Os coeficientes de Piaerson obtidos através das simulações das vazões dos dados observados apresentaram correlações melhores com valores entre 0,4 a 0,71. O acoplamento de modelos hidrológicos (precipitação-vazão) e modelos atmosféricos podem ser considerados uma técnica útil no auxilio no prognóstico de vazões elevadas. Há uma necessidade eminente na calibração do modelo atmosférico, para que se torne uma ferramenta eficiente e real na elaboração de sistemas de alertas de cheias para bacia do Paraíba do Meio, dentre outras, que serão analisadas posteriormente

Made available in DSpace on 2016-08-10T10:55:50Z (GMT). No. of bitstreams: 1 MILTON REGO DE PAULA.pdf: 12869211 bytes, checksum: 00fc5405617932d984ba88817a8980cb (MD5) Previous issue date: 2010-04-14 / The environmental law resources had a huge progress worldwide. Despite this progress, hydrologist resources degradation is still the pure reality, especially when talking about countries like Brazil. The hydrologic pollution assumes greater percentages, placing the human health at risk. Mind you about the locals own environmental perception of the Botafogo, Areião, Vaca Brava and Jardim Botânico Parks devastation, and between all the Parks, Botafogo Park is the only one which doesn`t have a working management plan. In addition the working management plan isn`t running properly at all others. Also the research data obtained shows that the water is polluted according to the interviewed conception. Furthermore diseases like mycosis, diarrhoea, cholera and flukes were acquired by some of the interviewed due to direct contact with the water. Moreover it is highlighted the necessity of Goiania Public Power to look forward the environmental law and to develop an environmental education about this information and others concern. / A legislação ambiental dos recursos hídricos teve um grande avanço em todo o mundo. Apesar do progresso, a degradação desses recursos é, ainda, uma concreta realidade, em especial nos países como o Brasil. A poluição hídrica assume proporções alarmantes, colocando em risco a saúde humana. Destaca a percepção ambiental dos visitantes dos Parques Botafogo, Areião, Vaca Brava e Jardim Botânico sobre a devastação ambiental dos mesmos. De todos os Parques estudados, o único que não possui um plano de manejo é o Parque Botafogo. Nos demais, os planos de manejos ainda não foram colocados em prática em sua plenitude. Os dados obtidos mostram que na concepção dos entrevistados em relação às características apresentadas pela água, são poluídas. Doenças como micose, diarréia, cólera e verminose foram adquiridas pela minoria dos entrevistados, devido ao contato com a água. Salienta que é preciso que o Poder Público Municipal de Goiânia cumpra a legislação ambiental, busque desenvolver a educação ambiental, entre outras.

Made available in DSpace on 2016-08-10T10:47:54Z (GMT). No. of bitstreams: 1 MILTON REGO DE PAULA.pdf: 12869211 bytes, checksum: 00fc5405617932d984ba88817a8980cb (MD5) Previous issue date: 2010-04-14 / The environmental law resources had a huge progress worldwide. Despite this progress, hydrologist resources degradation is still the pure reality, especially when talking about countries like Brazil. The hydrologic pollution assumes greater percentages, placing the human health at risk. Mind you about the locals own environmental perception of the Botafogo, Areião, Vaca Brava and Jardim Botânico Parks devastation, and between all the Parks, Botafogo Park is the only one which doesn`t have a working management plan. In addition the working management plan isn`t running properly at all others. Also the research data obtained shows that the water is polluted according to the interviewed conception. Furthermore diseases like mycosis, diarrhoea, cholera and flukes were acquired by some of the interviewed due to direct contact with the water. Moreover it is highlighted the necessity of Goiania Public Power to look forward the environmental law and to develop an environmental education about this information and others concern. / A legislação ambiental dos recursos hídricos teve um grande avanço em todo o mundo. Apesar do progresso, a degradação desses recursos é, ainda, uma concreta realidade, em especial nos países como o Brasil. A poluição hídrica assume proporções alarmantes, colocando em risco a saúde humana. Destaca a percepção ambiental dos visitantes dos Parques Botafogo, Areião, Vaca Brava e Jardim Botânico sobre a devastação ambiental dos mesmos. De todos os Parques estudados, o único que não possui um plano de manejo é o Parque Botafogo. Nos demais, os planos de manejos ainda não foram colocados em prática em sua plenitude. Os dados obtidos mostram que na concepção dos entrevistados em relação às características apresentadas pela água, são poluídas. Doenças como micose, diarréia, cólera e verminose foram adquiridas pela minoria dos entrevistados, devido ao contato com a água. Salienta que é preciso que o Poder Público Municipal de Goiânia cumpra a legislação ambiental, busque desenvolver a educação ambiental, entre outras.

This research examined the problem of poor retention of employees with scarce skills in the Limpopo Department of Agriculture. Employees with scarce skills were selected to participate in the research which focused on recruitment, selection and retention. Recruitment, selection and retention of line employees with valued skills are a major crises facing many institutions. The problem of poor retention and turnover of line employees with scarce skills has far reaching consequences in that dissatisfaction with working conditions causes additional turnover. To some extent, the Department can control the turnover rate of its employees with scarce skills. The research assessed recruitment, selection and retention of line employees with scarce skills in the Limpopo Department of Agriculture. The research concentrated on the reasons for poor retention of line employees with scarce skills, the extent of turnover of employees with scarce skills, what process do the Limpopo Department of Agriculture follow in filling vacant post and what interventions and measures do the Department undertakes to ensure compliance to the recruitment policy. A questionnaire was used to collect data from managers and line employees with scarce skills. A hundred (100) questionnaires were distributed and 67 were returned. The findings revealed that Limpopo Department of Agriculture can do more in retaining its valued line employees (those with scarce skills). The challenge of scarce skills in the Department is compounded by the high demand of for instance engineers, state veterinarians and researchers in South Africa. There is a war on scarce skills in South Africa, Generation Y needs resources, better working conditions and a better salary to be retained. The research findings were evaluated and possible strategies for improving recruitment, selection and retention of line employees with scarce skills are recommended. The Department should design a career progression path policy. This would assist in retaining scarce skills in the public sector. / Public Administration and Management / M.A. (Public Administration)

This research examined the problem of poor retention of employees with scarce skills in the Limpopo Department of Agriculture. Employees with scarce skills were selected to participate in the research which focused on recruitment, selection and retention. Recruitment, selection and retention of line employees with valued skills are a major crises facing many institutions. The problem of poor retention and turnover of line employees with scarce skills has far reaching consequences in that dissatisfaction with working conditions causes additional turnover. To some extent, the Department can control the turnover rate of its employees with scarce skills. The research assessed recruitment, selection and retention of line employees with scarce skills in the Limpopo Department of Agriculture. The research concentrated on the reasons for poor retention of line employees with scarce skills, the extent of turnover of employees with scarce skills, what process do the Limpopo Department of Agriculture follow in filling vacant post and what interventions and measures do the Department undertakes to ensure compliance to the recruitment policy. A questionnaire was used to collect data from managers and line employees with scarce skills. A hundred (100) questionnaires were distributed and 67 were returned. The findings revealed that Limpopo Department of Agriculture can do more in retaining its valued line employees (those with scarce skills). The challenge of scarce skills in the Department is compounded by the high demand of for instance engineers, state veterinarians and researchers in South Africa. There is a war on scarce skills in South Africa, Generation Y needs resources, better working conditions and a better salary to be retained. The research findings were evaluated and possible strategies for improving recruitment, selection and retention of line employees with scarce skills are recommended. The Department should design a career progression path policy. This would assist in retaining scarce skills in the public sector. / Public Administration and Management / M.A. (Public Administration)