Morfodinâmica de um campo de dunas eólicas costeiras no município de Maxaranguape-RN
The present study is the analysis of transport measurements using wind collectors of sand (Sand Traps) over a field of sand dunes on the Maracajaú’s beach, city of Maxaranguape. These measures are used, then as a parameter of wind movement in this region. Seven field trips were conducted between Sep...
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| Formato: | Dissertação |
| Idioma: | pt_BR |
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Universidade Federal do Rio Grande do Norte
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| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/48304 |
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| Resumo: | The present study is the analysis of transport measurements using wind collectors of sand (Sand Traps) over a field of sand dunes on the Maracajaú’s beach, city of Maxaranguape. These measures are used, then as a parameter of wind movement in this region. Seven field trips were conducted between September 2009 and September 2010 to obtain data from 12 stations along the collectors Dunefield Maracajaú and weather data with the use of portable weather station. Were also used data from the meteorological station Maxaranguape corresponding to April 2008 until May 2010, provided by the Instituto Nacional de Pesquisas Espaciais - INPE for Information about the frequency and intensity of the winds in the region. The data were processed and analyzed using statistical techniques of regression and correlation to measure the wind drift of Dunefield Maracajaú. The analysis of data from the meteorological station of Maxaranguape points with winds SE quadrant of the preferred direction and ESS for the whole period. This same station recorded 78% of wind speeds above 5 m / s, over three quarters of the total wind, showing a strong wind capacity to transport sand. The calculations show that wind drift of the field collections made in September 2010, are those that indicate a greater movement of sediment in the wind field Maracajaú dunes with 0.439 kg of sand transported per hour. Then, with decreasing values of sedimentary wind movement, are the collections made in February 2010 with winds carrying capacity equal to 0.239 kg per hour in September 2009 with a transport capacity of wind 0.06334 kg per hour in October 2009 recording of aeolian transport capacity of 0,025 kg per hour, in December 2009, with winds carrying 0.0064 kg per hour, and last and least significant collections held in March 2010, where he registered a load carried by the wind of 0.0032 kg. Finally it is proposed to adjust the methodology used. |
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