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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
13/03/2015 |
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Data da última atualização: |
15/07/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
CASTRO, K.; LIMA, J. E. F. W.; ROIG, H. |
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Afiliação: |
KÁSSIA CASTRO, UNIVERSIDADE DE BRASÍLIA; JORGE ENOCH FURQUIM WERNECK LIMA, CPAC; HENRIQUE ROIG, UNIVERSIDADE DE BRASÍLIA. |
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Título: |
Impacts of a specific soil database on streamflow simulation with SWAT in an experimental rural catchment of the Brazilian savanna. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: SOIL AND WATER ASSESSMENT TOOL CONFERENCE, 2014, Porto de Galinhas. Book of abstracts... Texas: USDA Agricultural Research Service, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to evaluate the impacts of using a specific soil database on streamflow simulation with SWAT model in an experimental rural catchment of the Brazilian savana (Cerrado biome). In order to accomplish that, two soil databases were tested, one generated by data measured in the studied area (Sim1), and the other from literature (Sim2). The Upper Jardim Experimental River Basin (105 km2), located in a rural zone of the Brazilian Federal District, due to this remarkable soil database, was chosen as the study area. Streamflow simulations were performed for two consecutive years (2006-2008), on a daily basis. No calibration was performed to make it possible to analyze the impact of the soil database on the first simulation, what is relevant mainly for ungagged basins. Even having better physical basis, the results obtained by Sim1 (NSE = -10.81) was worse than the ones generated by Sim2 (NSE = -6.15). The negative NSE values indicate that both simulations failed to represent observed data. Analyzing the hydrographs, it is noticed that: (i) both simulations underestimated baseflow during the dry season; (ii) both simulations overestimated streamflow peaks, but Sim1 presented higher (worst) values; (iii) during the rainy season, the baseflow simulation of Sim1 was satisfactory, while it was overestimated in Sim2. The results reinforce that the model is sensible to soil information, but it shows that it is still necessary more studies about other SWAT parameters, as the ones that control runoff generation. MenosThis study aimed to evaluate the impacts of using a specific soil database on streamflow simulation with SWAT model in an experimental rural catchment of the Brazilian savana (Cerrado biome). In order to accomplish that, two soil databases were tested, one generated by data measured in the studied area (Sim1), and the other from literature (Sim2). The Upper Jardim Experimental River Basin (105 km2), located in a rural zone of the Brazilian Federal District, due to this remarkable soil database, was chosen as the study area. Streamflow simulations were performed for two consecutive years (2006-2008), on a daily basis. No calibration was performed to make it possible to analyze the impact of the soil database on the first simulation, what is relevant mainly for ungagged basins. Even having better physical basis, the results obtained by Sim1 (NSE = -10.81) was worse than the ones generated by Sim2 (NSE = -6.15). The negative NSE values indicate that both simulations failed to represent observed data. Analyzing the hydrographs, it is noticed that: (i) both simulations underestimated baseflow during the dry season; (ii) both simulations overestimated streamflow peaks, but Sim1 presented higher (worst) values; (iii) during the rainy season, the baseflow simulation of Sim1 was satisfactory, while it was overestimated in Sim2. The results reinforce that the model is sensible to soil information, but it shows that it is still necessary more studies about other SWAT parameters, as the... Mostrar Tudo |
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Palavras-Chave: |
Modelo hidrológico. |
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Thesaurus Nal: |
Hydrology; Runoff; Savannas. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1011366/1/Impacts-of-a-specific-soil-database.pdf
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Marc: |
LEADER 02199nam a2200181 a 4500
001 2011366
005 2024-07-15
008 2014 bl uuuu u00u1 u #d
100 1 $aCASTRO, K.
245 $aImpacts of a specific soil database on streamflow simulation with SWAT in an experimental rural catchment of the Brazilian savanna.$h[electronic resource]
260 $aIn: SOIL AND WATER ASSESSMENT TOOL CONFERENCE, 2014, Porto de Galinhas. Book of abstracts... Texas: USDA Agricultural Research Service$c2014
520 $aThis study aimed to evaluate the impacts of using a specific soil database on streamflow simulation with SWAT model in an experimental rural catchment of the Brazilian savana (Cerrado biome). In order to accomplish that, two soil databases were tested, one generated by data measured in the studied area (Sim1), and the other from literature (Sim2). The Upper Jardim Experimental River Basin (105 km2), located in a rural zone of the Brazilian Federal District, due to this remarkable soil database, was chosen as the study area. Streamflow simulations were performed for two consecutive years (2006-2008), on a daily basis. No calibration was performed to make it possible to analyze the impact of the soil database on the first simulation, what is relevant mainly for ungagged basins. Even having better physical basis, the results obtained by Sim1 (NSE = -10.81) was worse than the ones generated by Sim2 (NSE = -6.15). The negative NSE values indicate that both simulations failed to represent observed data. Analyzing the hydrographs, it is noticed that: (i) both simulations underestimated baseflow during the dry season; (ii) both simulations overestimated streamflow peaks, but Sim1 presented higher (worst) values; (iii) during the rainy season, the baseflow simulation of Sim1 was satisfactory, while it was overestimated in Sim2. The results reinforce that the model is sensible to soil information, but it shows that it is still necessary more studies about other SWAT parameters, as the ones that control runoff generation.
650 $aHydrology
650 $aRunoff
650 $aSavannas
653 $aModelo hidrológico
700 1 $aLIMA, J. E. F. W.
700 1 $aROIG, H.
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Registro original: |
Embrapa Cerrados (CPAC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
22/12/1999 |
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Autoria: |
MALMONGE, J. A.; MATTOSO, L. H. C. |
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Afiliação: |
USP-IFSC; EMBRAPA-CNPDIA. |
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Título: |
Conductivity of polyaniline induced by X-rays radiation. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996. |
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Páginas: |
p.205. |
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Idioma: |
Inglês |
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Notas: |
Ref.P2.168. |
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Conteúdo: |
Thin films cast from chemically synthesized polyaniline were exposed to ionizing X-rays radiaton and characterized by ultraviolet-visible (UV-Vis) spectroscopy, electrical conductivity, radiation induced conductivity and solubility measurements. Samples irradiated under vacuum or dry oxygen atmosphere did not have their electronic spectra changed (maximum wavelength at 630nm). However, under ambient or high humidity atmospheres the energy of the excitonic transition was decreased (max at approximatelly 1000nm), accompanied by a great conductivity increase up to 1S/cm. Such conductivity suffers a small decay, remaining constant at about 10E-2 S/cm for several days. Radiation induced conductivity (RIC) measurements indicated a large increase in current as a function of time for films irradiated under high relative humidity atmosphere, consistent with this phenomenon. This behavior seems to indicate that doping of polyaniline can be achieved by X-rays radiation which might be of interest for applications on lithography and microelectronics. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01587naa a2200157 a 4500
001 1027096
005 1999-12-22
008 1996 bl uuuu u00u1 u #d
100 1 $aMALMONGE, J. A.
245 $aConductivity of polyaniline induced by X-rays radiation.
260 $c1996
300 $ap.205.
500 $aRef.P2.168.
520 $aThin films cast from chemically synthesized polyaniline were exposed to ionizing X-rays radiaton and characterized by ultraviolet-visible (UV-Vis) spectroscopy, electrical conductivity, radiation induced conductivity and solubility measurements. Samples irradiated under vacuum or dry oxygen atmosphere did not have their electronic spectra changed (maximum wavelength at 630nm). However, under ambient or high humidity atmospheres the energy of the excitonic transition was decreased (max at approximatelly 1000nm), accompanied by a great conductivity increase up to 1S/cm. Such conductivity suffers a small decay, remaining constant at about 10E-2 S/cm for several days. Radiation induced conductivity (RIC) measurements indicated a large increase in current as a function of time for films irradiated under high relative humidity atmosphere, consistent with this phenomenon. This behavior seems to indicate that doping of polyaniline can be achieved by X-rays radiation which might be of interest for applications on lithography and microelectronics.
700 1 $aMATTOSO, L. H. C.
773 $tIn: INTERNATIONAL CONFERENCE ON SCIENCE AND TECHNOLOGY OF SYNTHETIC METALS, July-Aug. 1996, Snowbird, UT, Estados Unidos. Abstracts... Snowbird: Utah University, 1996.
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