ESTIMATIVA DE CONCENTRAÇÃO E SEDIMENTOS EM SUSPENSÃO A PARTIR DE IMAGENS LANDSAT 8 EM PCHS NO RIO IVAÍ - RS

التفاصيل البيبلوغرافية
العنوان: ESTIMATIVA DE CONCENTRAÇÃO E SEDIMENTOS EM SUSPENSÃO A PARTIR DE IMAGENS LANDSAT 8 EM PCHS NO RIO IVAÍ - RS
المؤلفون: Laurindo Antonio Guasselli, Daniela Wancura Barbieri Peixoto, Waterloo Pereira Filho
المصدر: Geosciences = Geociências. 37:147-154
بيانات النشر: UNESP - Universidade Estadual Paulista, 2018.
سنة النشر: 2018
مصطلحات موضوعية: Aquatic environment, Environmental science, Spatial distribution, Reflectivity, Geomorphology, Sediment concentration
الوصف: In the last decades the use of remote sensor has been gaining distinction on both the estimate and the dynamics analysis of spatial distribution of the suspended sediment concentration, having potential to be used on rivers and reservoirs. Thus this work aims to evaluate the usage from the Landsat 8 Images (band 4, with spectral range 640 - 670 nm) in order to estimate the suspended sediment concentration on the three SHPPs (Small Hydroelectric Power Plant) of the river Ivai, RS. Four reflectance images were used and made available by USGS (www.earthexplorer.usgs.gov) and 4 TSS field collected data in three SHPPs under study to produce the mathematical model, forming 3 points per field for a total amount of 12 correlated points. The reflectance values from the band 4, with band center of 655nm of wavelength, were correlated to the TSS data. The exponential model that presented the best setting of R 2 (0.84) was used to the equation y= 1,6865e 0,1058x . It was verified that the images from Landsat 8 (band 4) display a fine development in specific aquatic environment conditions, outlining the sediment deposition due to ripple effect.
تدمد: 1980-900X
DOI: 10.5016/geociencias.v37i1.11491
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::4b04287fb99188a3ecad3c3d58eed9f2
https://doi.org/10.5016/geociencias.v37i1.11491
Rights: OPEN
رقم الانضمام: edsair.doi...........4b04287fb99188a3ecad3c3d58eed9f2
قاعدة البيانات: OpenAIRE
الوصف
تدمد:1980900X
DOI:10.5016/geociencias.v37i1.11491