Use of entropy and clustering analysis for the evaluation of water resources potential availability in the Northeastern Brazil
The aim of this study was to define, based on Shannon entropy theory and on cluster analysis and metrics to represent the randomness of the intensity and occurrence of monthly rainfall and using these metrics to evaluate the potential availability of water resources (PAWR) in northeastern Brazil. He...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
2010-08-01
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| Series: | Revista Ambiente & Água |
| Subjects: | |
| Online Access: | http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/431 |
| _version_ | 1818064299599331328 |
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| author | Francisco Salviano Sousa Solange Salviano Sousa Roni Valter de Souza Guedes |
| author_facet | Francisco Salviano Sousa Solange Salviano Sousa Roni Valter de Souza Guedes |
| author_sort | Francisco Salviano Sousa |
| collection | DOAJ |
| description | The aim of this study was to define, based on Shannon entropy theory and on cluster analysis and metrics to represent the randomness of the intensity and occurrence of monthly rainfall and using these metrics to evaluate the potential availability of water resources (PAWR) in northeastern Brazil. Here the entropy is expressed in the context of probability of occurrence of the "intensity of hydrological variables," i.e, within the structure of Entropy Intensity. The criterion to perform the sampling of rainfall data was the period of data collection. Rain gauges with less than 25 years of observations were left out of this study. Data of total monthly precipitation from 874 rain gauges in the Northeast of Brazil were analyzed. This study showed the perfect adaptation of the methodology applied for the studied area. The results showed a perfect configuration with the Köppen climatic types and the weather systems operating in each area. |
| first_indexed | 2024-12-10T14:33:48Z |
| format | Article |
| id | doaj.art-bef81984ee414595bfc735e6aaf94483 |
| institution | Directory Open Access Journal |
| issn | 1980-993X |
| language | English |
| last_indexed | 2024-12-10T14:33:48Z |
| publishDate | 2010-08-01 |
| publisher | Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) |
| record_format | Article |
| series | Revista Ambiente & Água |
| spelling | doaj.art-bef81984ee414595bfc735e6aaf944832022-12-22T01:44:52ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2010-08-015217518710.4136/ambi-agua.431Use of entropy and clustering analysis for the evaluation of water resources potential availability in the Northeastern BrazilFrancisco Salviano SousaSolange Salviano SousaRoni Valter de Souza GuedesThe aim of this study was to define, based on Shannon entropy theory and on cluster analysis and metrics to represent the randomness of the intensity and occurrence of monthly rainfall and using these metrics to evaluate the potential availability of water resources (PAWR) in northeastern Brazil. Here the entropy is expressed in the context of probability of occurrence of the "intensity of hydrological variables," i.e, within the structure of Entropy Intensity. The criterion to perform the sampling of rainfall data was the period of data collection. Rain gauges with less than 25 years of observations were left out of this study. Data of total monthly precipitation from 874 rain gauges in the Northeast of Brazil were analyzed. This study showed the perfect adaptation of the methodology applied for the studied area. The results showed a perfect configuration with the Köppen climatic types and the weather systems operating in each area.http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/431Information theory of Shannonprecipitationk-means |
| spellingShingle | Francisco Salviano Sousa Solange Salviano Sousa Roni Valter de Souza Guedes Use of entropy and clustering analysis for the evaluation of water resources potential availability in the Northeastern Brazil Revista Ambiente & Água Information theory of Shannon precipitation k-means |
| title | Use of entropy and clustering analysis for the evaluation of water resources potential availability in the Northeastern Brazil |
| title_full | Use of entropy and clustering analysis for the evaluation of water resources potential availability in the Northeastern Brazil |
| title_fullStr | Use of entropy and clustering analysis for the evaluation of water resources potential availability in the Northeastern Brazil |
| title_full_unstemmed | Use of entropy and clustering analysis for the evaluation of water resources potential availability in the Northeastern Brazil |
| title_short | Use of entropy and clustering analysis for the evaluation of water resources potential availability in the Northeastern Brazil |
| title_sort | use of entropy and clustering analysis for the evaluation of water resources potential availability in the northeastern brazil |
| topic | Information theory of Shannon precipitation k-means |
| url | http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/431 |
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