Uso del Índice Normalizado de Agua MODIS para monitoreo, modelación y pronóstico hidrológico en un gran sistema de llanura con morfología fluvial típica.

The estimation of hydrological cycle variables using remote sensing data has undergone remarkable advances in recent years. Today it is possible to freely access estimates of rainfall, evapotranspiration, soil moisture, land cover and elevation, among other variables of hydrological interest. This...

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Autor principal: Giordano, Leandro
Otros Autores: Goniadzki, Dora Goniadzki
Formato: Tesis Tesis doctoral acceptedVersion
Lenguaje:Español
Español
Publicado: Universidad Nacional de Luján 2019
Materias:
Acceso en línea:http://ri.unlu.edu.ar/xmlui/handle/rediunlu/558
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id I62-R168-rediunlu-558
record_format dspace
institution Universidad Nacional de Luján (UNLu)
institution_str I-62
repository_str R-168
collection REDIUNLu - Repositorio Digital Institucional de Acceso Abierto - Universidad Nacional de Luján (UNLu)
language Español
Español
topic Hidrología
Hidrología operativa
Modelación Hidrológica
Dinámica del área anegada
Teledetección
Hidrología de Grandes Llanuras
Hydrological models
Flooded area dynamics
Remote Sensing
spellingShingle Hidrología
Hidrología operativa
Modelación Hidrológica
Dinámica del área anegada
Teledetección
Hidrología de Grandes Llanuras
Hydrological models
Flooded area dynamics
Remote Sensing
Giordano, Leandro
Uso del Índice Normalizado de Agua MODIS para monitoreo, modelación y pronóstico hidrológico en un gran sistema de llanura con morfología fluvial típica.
topic_facet Hidrología
Hidrología operativa
Modelación Hidrológica
Dinámica del área anegada
Teledetección
Hidrología de Grandes Llanuras
Hydrological models
Flooded area dynamics
Remote Sensing
description The estimation of hydrological cycle variables using remote sensing data has undergone remarkable advances in recent years. Today it is possible to freely access estimates of rainfall, evapotranspiration, soil moisture, land cover and elevation, among other variables of hydrological interest. This has impacted the field of hydrological modeling, either for simulation or prognosis. For example, estimates of cumulative rainfall (or evapotranspiration) are used as forcing variables in different modeling schemes. Furthermore, both the land cover and topographic information are often used to estimate parameters associated with the hydrological response (curve number) or morphological parameters (Horton's relations), involved in the development of many models. The present research focuses and exploits the links between the dynamics of the saturated surface (i.e. flooded area) and runoff in a large flatland's hydrological system under a remote sensing and hydrological modelling coupling approach. In a large flatland's hydrological system, the variability of the extend of flooded area in the valleys may be significant, and observable even at large spatial scales. Thus, it is possible to identify some kind of signal of the process by using optical remote sensing data. Then, if any data of runoff are avaiable, it is possible to analyze the structure and intensity of such links. Also, the patterns found (e.g. flooded area – runoff rating curves) may be included in a precipitationrunoff scheme, in such a way that the model parameters may be calibrated by remote sensing estimates. In a few words, the tactic adopted was the developing of an hydrological model that takes precipitation as a major input and reproduces both the dynamics of saturated area and runoff produced by the system. Then, it is possible to calibrate model's parameters with the aid of remote sensing data (i.e. saturated area estimates), under the assumption of a strong link between flooded area and runoff, and evaluate the hypothesis by comparison of simulated and observed runoff. To do this, the Alto y Medio Gualeguay river basin has been selected as study object. Also, MODIS MOD09A1 data were selected for the extraction of flooded area estimates, using a NDWI thresholding approach. First, the links between NDWI and flooded area have been studied. After that, the links between runoff and flooded area were determined by using runoff data of Gualeguay river at Rosario del Tala (outlet of Alto y Medio Gualeguay) and flooded area estimates by MODIS MOD09A1 NDWI threshold analysis. Finally, the model was developed (under a soil moisture accounting and hydrological routing lumped scheme, including flooded area – runoff patterns found) and remote sensing estimates were used for calibration. Evaluation results showed that the approach is succesfull.
author2 Goniadzki, Dora Goniadzki
author_facet Goniadzki, Dora Goniadzki
Giordano, Leandro
format Thesis
Tesis doctoral
Tesis doctoral
acceptedVersion
author Giordano, Leandro
author_sort Giordano, Leandro
title Uso del Índice Normalizado de Agua MODIS para monitoreo, modelación y pronóstico hidrológico en un gran sistema de llanura con morfología fluvial típica.
title_short Uso del Índice Normalizado de Agua MODIS para monitoreo, modelación y pronóstico hidrológico en un gran sistema de llanura con morfología fluvial típica.
title_full Uso del Índice Normalizado de Agua MODIS para monitoreo, modelación y pronóstico hidrológico en un gran sistema de llanura con morfología fluvial típica.
title_fullStr Uso del Índice Normalizado de Agua MODIS para monitoreo, modelación y pronóstico hidrológico en un gran sistema de llanura con morfología fluvial típica.
title_full_unstemmed Uso del Índice Normalizado de Agua MODIS para monitoreo, modelación y pronóstico hidrológico en un gran sistema de llanura con morfología fluvial típica.
title_sort uso del índice normalizado de agua modis para monitoreo, modelación y pronóstico hidrológico en un gran sistema de llanura con morfología fluvial típica.
publisher Universidad Nacional de Luján
publishDate 2019
url http://ri.unlu.edu.ar/xmlui/handle/rediunlu/558
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