Evapotranspiration from Remote Sensing to Improve the Swat Model in Eastern Amazonia
In this study, we estimated the evapotranspiration from orbital images - MODIS (Moderate Resolution Imaging Spectroradiometer) for assimilation in the hydrological modeling of the SWAT (Soil Water Assessment Tools) model. The data used include the period between October 2003 and December 2006 of...
| Autor principal: | SOUSA, Adriano Marlisom Leão de |
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| Outros Autores: | VITORINO, Maria Isabel, CASTRO, Nilza Maria dos Reis, BOTELHO, Marcel do Nascimento, SOUZA, Paulo Jorge de Oliveira Ponte de |
| Grau: | Artigo |
| Idioma: | por |
| Publicado em: |
Universidade Federal do Pará
2017
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| Assuntos: | |
| Acesso em linha: |
http://repositorio.ufpa.br/jspui/handle/2011/8746 |
| Resumo: |
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In this study, we estimated the evapotranspiration from orbital images - MODIS (Moderate
Resolution Imaging Spectroradiometer) for assimilation in the hydrological modeling of the
SWAT (Soil Water Assessment Tools) model. The data used include the period between October
2003 and December 2006 of the sub-basin of the Lajeado River, located in the Tocantins-Araguaia
River basin in Tocantins state. Overall, the results of the use of heat flows estimated by remote
sensors in the SWAT model can be considered satisfactory. The values of the COE (coefficient of
efficiency of Nash-Sutcliffe) ranged from -0.40 to 0.91 in the comparison with the daily flow data
and from 0.17 to 0.77 with the monthly flow data, with the assimilation of evapotranspiration
from orbital images. These results indicate benefit to the model adjustment due to improvement
in the data assimilated of approximately 0.91 in the COE on daily scale and 0.60 in the CEO on
monthly scale. |