Citas bibligráficas
Jara, F., (2015). Variabilidad del cauce del río Santa - zona de Centenario y sistema de información geográfica [Tesis, Universidad Nacional Agraria La Molina]. https://hdl.handle.net/20.500.12996/935
Jara, F., Variabilidad del cauce del río Santa - zona de Centenario y sistema de información geográfica [Tesis]. : Universidad Nacional Agraria La Molina; 2015. https://hdl.handle.net/20.500.12996/935
@mastersthesis{renati/244678,
title = "Variabilidad del cauce del río Santa - zona de Centenario y sistema de información geográfica",
author = "Jara Remigio, Flor Angela",
publisher = "Universidad Nacional Agraria La Molina",
year = "2015"
}
A study of the variability in the course of "Santa" River was made from the" San Geronimo Bridge" to the Army Basein Huaraz. Comparing aeria1 pictures taken in 1942, 1970, 2004 and a 2013 satellite photograph, previously geo-referenced, orthorectified and generated mosaics by Geographic Information Systems such as Are Map and ArcGIS 10 software. Quantum GIS, ERDAS IMAGINE, ERDAS LPS module, takhig into account that for geo-referencing, a photograph should be taken at least four control points and must be located in the outer parts of the photograph to reduce errors and points that have not changed over the years. For the overlap there must be consecutive aerial photographs where the area of interest covers the area of overlap. In case of a lower flying height more than 2 photographs will be required, and flying higher altitudes 2 photographs should be enough. After vectorizing the mosaic we export to AutoCAD to calculate the width of the river, the radius of curvature, amplitude, etc. which are required data for calculating the sinuosity of the river to the area and the years of study using Ex ce l. Obtaining the Whorl for the years 1942, 1970, 2004 and 2013 values: 4.27, 4.69, 4.77 and 4.79 respectively, all higher than 1.5 and according to the theory of the degree of sinuosity of the section under study is a meandering river, and also was observed that the area that changed more through the years was the meander 1 because when analyzing its standard deviation was greater than the rest, followed by the meandering 3, 4 and 2.
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