Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Academia Brasileira de Ciências
2016
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| author | JOSÉ N.B. CAMPOS |
| author_facet | JOSÉ N.B. CAMPOS |
| contents | Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil JOSÉ N.B. CAMPOS IRAN E. LIMA NETO TICIANA M.C. STUDART LUIZ S.V. NASCIMENTO Multidisciplinaria (Ciencias Naturales y Exactas) semi arid regions lake morphology reservoir yield Evaporation losses This study investigates the relationships between yield and evaporation as a function of lake morphology in semi-arid Brazil. First, a new methodology was proposed to classify the morphology of 40 reservoirs in the Ceará State, with storage capacities ranging from approximately 5 to 4500 hm3. Then, Monte Carlo simulations were conducted to study the effect of reservoir morphology (including real and simplied conical forms) on the water storage process at different reliability levels. The reservoirs were categorized as convex (60.0%), slightly convex (27.5%) or linear (12.5%). When the conical approximation was used instead of the real lake form, a trade-off occurred between reservoir yield and evaporation losses, with different trends for the convex, slightly convex and linear reservoirs. Using the conical approximation, the water yield prediction errors reached approximately 5% of the mean annual inflow, which is negligible for large reservoirs. However, for smaller reservoirs, this error became important. Therefore, this paper presents a new procedure for correcting the yield-evaporation relationships that were obtained by assuming a conical approximation rather than the real reservoir morphology. The combination of this correction with the Regulation Triangle Diagram is useful for rapidly and objectively predicting reservoir yield and evaporation losses in semi-arid environments. 2016 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32746363033 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.88 |
| format | Artículo científico |
| id | redalyc_32746363033 |
| institution | Redalyc |
| language | en |
| publishDate | 2016 |
| publisher | Academia Brasileira de Ciências |
| spellingShingle | Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil JOSÉ N.B. CAMPOS Multidisciplinaria (Ciencias Naturales y Exactas) semi arid regions lake morphology reservoir yield Evaporation losses Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil JOSÉ N.B. CAMPOS IRAN E. LIMA NETO TICIANA M.C. STUDART LUIZ S.V. NASCIMENTO Multidisciplinaria (Ciencias Naturales y Exactas) semi arid regions lake morphology reservoir yield Evaporation losses This study investigates the relationships between yield and evaporation as a function of lake morphology in semi-arid Brazil. First, a new methodology was proposed to classify the morphology of 40 reservoirs in the Ceará State, with storage capacities ranging from approximately 5 to 4500 hm3. Then, Monte Carlo simulations were conducted to study the effect of reservoir morphology (including real and simplied conical forms) on the water storage process at different reliability levels. The reservoirs were categorized as convex (60.0%), slightly convex (27.5%) or linear (12.5%). When the conical approximation was used instead of the real lake form, a trade-off occurred between reservoir yield and evaporation losses, with different trends for the convex, slightly convex and linear reservoirs. Using the conical approximation, the water yield prediction errors reached approximately 5% of the mean annual inflow, which is negligible for large reservoirs. However, for smaller reservoirs, this error became important. Therefore, this paper presents a new procedure for correcting the yield-evaporation relationships that were obtained by assuming a conical approximation rather than the real reservoir morphology. The combination of this correction with the Regulation Triangle Diagram is useful for rapidly and objectively predicting reservoir yield and evaporation losses in semi-arid environments. 2016 artículo científico 0001-3765 https://www.redalyc.org/articulo.oa?id=32746363033 en http://www.redalyc.org/revista.oa?id=327 Anais da Academia Brasileira de Ciências application/pdf Academia Brasileira de Ciências Anais da Academia Brasileira de Ciências (Brasil) Num.2 Vol.88 |
| title | Trade-off between reservoir yield and evaporation losses as a function of lake morphology in semi-arid Brazil |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) semi arid regions lake morphology reservoir yield Evaporation losses |
| url | https://www.redalyc.org/articulo.oa?id=32746363033 |