Multispectral analysis to estimate the turbidity as an indicator of the quality of water in reservoirs in Chihuahua State, Mexico
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| Nhiều tác giả: | , , , , , |
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| Định dạng: | artículo original |
| Trạng thái: | Versión publicada |
| Ngày xuất bản: | 2018 |
| Miêu tả: | The Basin of Conchos River, located in the State of Chihuahua (Mexico), has suffered a marked deteriorationdue to the development of human activities. The urban population growth, industrialization,and agriculture have significantly degraded water resources of this basin. To examine the quality of itswaters, the reservoirs of Las Vírgenes dam, the Colina lake, and La Boquilla dam have been analyzed, determining the parameters of dissolved oxygen, pH, nitrates, total dissolved solids, turbidity and temperature from water samples. Using these data and the spectral information of Landsat 5 satellite images, 30 linear regression models were evaluated; from these models, turbidity obtained the best match. The regions of spectrum 0.52-0.6 μm and 0.63-0.69 μm, provided by the predictor variable, appeared as the ranges of higher correlation with the values of turbidity. The model used to represent the turbidity spatially distributed shows that La Boquilla dam gets the highest values related to the suspension of sediments provided by ephemeral channels throughout the reservoir. |
| Quốc gia: | Portal de Revistas UNA |
| Tổ chức giáo dục: | Universidad Nacional de Costa Rica |
| Repositorio: | Portal de Revistas UNA |
| Ngôn ngữ: | Español |
| OAI Identifier: | oai:www.revistas.una.ac.cr:article/10903 |
| Truy cập trực tuyến: | https://www.revistas.una.ac.cr/index.php/geografica/article/view/10903 |
| Từ khóa: | Inland waters; water pollution; eutrophication; Remote sensing, spatial distribution of turbidity Aguas interiores; Contaminación hídrica; Eutrofización; Teledetección, Distribución espacial de la turbidez. |