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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

A ind?stria da cer?mica vermelha e os ?ndices de extremos clim?ticos para os estados do Rio Grande do Norte e Para?ba / The red pottery industry and the indexes of climatic extremes for Rio Grande do Norte and Paraiba states

Santos, Fernanda Katiusca dos 23 February 2017 (has links)
Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-06-02T22:45:03Z No. of bitstreams: 1 FernandaKatiuscaDosSantos_DISSERT.pdf: 2290535 bytes, checksum: 4ca060fc7a0794e735ed5ffd3011ac56 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-06-09T19:32:33Z (GMT) No. of bitstreams: 1 FernandaKatiuscaDosSantos_DISSERT.pdf: 2290535 bytes, checksum: 4ca060fc7a0794e735ed5ffd3011ac56 (MD5) / Made available in DSpace on 2017-06-09T19:32:33Z (GMT). No. of bitstreams: 1 FernandaKatiuscaDosSantos_DISSERT.pdf: 2290535 bytes, checksum: 4ca060fc7a0794e735ed5ffd3011ac56 (MD5) Previous issue date: 2017-02-23 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Nos ?ltimos anos o setor Industrial da Cer?mica Vermelha desenvolveu-se representativamente com a implanta??o de micro e pequenas empresas de Cer?mica por todo Brasil. N?o houve, no entanto, precau??es quanto ao uso dos recursos naturais utilizados como fonte de mat?ria prima para a Ind?stria. Desta maneira investigou-se a respeito de ind?cios de altera??es micrometeorol?gicas associadas ? Ind?stria de Cer?mica Estrutural nos elementos meteorol?gicos em algumas ?reas do Nordeste do Brasil. Para verificar se as vari?veis micrometeorol?gicas: precipita??o, evapotranspira??o, radia??o, velocidade do vento, umidade, e temperatura m?xima e m?nima, referentes ao per?odo de 1980 a 2013, apresentavam tend?ncias, utilizou-se o Teste de Mann Kendall; e para calcular os ?ndices de extremos clim?ticos utilizou-se o conjunto de dados para ?ndices de Extremos Clim?ticos - RClimDex. Foram identificados cinco polos, nos quais verificouse haver tend?ncias negativas para precipita??o, temperatura m?nima, umidade relativa e vento. E tend?ncias positivas para as vari?veis temperatura m?xima, evapotranspira??o e radia??o solar. Detectou-se tend?ncia em todos os polos, com exce??o da temperatura m?nima para o polo P2 (que apresenta maior n?mero de cer?micas). Identificou-se, ainda, tend?ncia para os ?ndices de extremos clim?ticos de Rx1day, R99p, Txn, Tnx, Tn10p, Tx10p, Txx e Tnn. Com tend?ncias positivas de extremos de temperatura para os polos estudados, com exce??o do polo P1 que obteve tend?ncia decrescente, indicando diminui??o dos valores m?ximos da m?nima; e do polo P2 que n?o apresentou tend?ncia para a temperatura m?nima e para os ?ndices de Tnn e Tnx e RX5day. Comportamentos adversos podem estar associados a a??es antr?picas da regi?o, especificamente ? intensa atividade ceramista. Por?m, n?o se pode afirmar categoricamente, que esse comportamento est? associado somente as a??es antr?picas, visto que pode estar sob influ?ncia de diversos agentes do clima. / In recent years the Industrial sector of red ceramic has developed representatively with the implantation of micro and small Ceramics companies throughout Brazil. There were, however, no precautions regarding the use of the natural resources used as raw material source for the Industry. In this way, we investigated the indications of micrometeorological alterations associated with the Structural Ceramics Industry in the meteorological elements in some areas of the Northeast of Brazil. In order to verify if the micrometeorological variables: precipitation, evapotranspiration, radiation, wind speed, humidity, and maximum and minimum temperature, referring to the period from 1980 to 2013, presented tendencies, the Mann Kendall test was used; And to calculate the indexes of climatic extremes the Data Set for Indexes of Climatic Extremes - RClimDex was used. Five poles were identified, in which there were negative trends for precipitation, minimum temperature, relative humidity and wind. And positive trends for the variables maximum temperature, evapotranspiration and solar radiation. A tendency was detected at all poles, with the exception of the minimum temperature for the P2 pole (which has the highest number of ceramics). A trend was also identified for the indexes of climatic extremes of Rx1day, R99p, Txn, Tnx, Tn10p, Tx10p, Txx and Tnn. With positive trends of temperature extremes for the studied poles, with the exception of the pole P1 that obtained a decreasing tendency, indicating decrease of the maximum values of the minimum; And the P2 pole which showed no tendency towards the minimum temperature and for the Tnn and Tnx and RX5day indices. Adverse behaviors may be associated with anthropogenic actions in the region, specifically intense ceramist activity. However, it can not be said categorically that this behavior is associated only with anthropic actions, since it may be under the influence of several agents of the climate.

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