INTRASEASONAL VARIABILITY OF RAINFALL OVER NORTHERN SOUTH AMERICA AND CARIBBEAN REGION
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| Format: | Artículo científico |
| Langue: | en |
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Universidad del Valle
2008
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| _version_ | 1876489385498640384 |
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| author | Jose Daniel Pabón |
| author_facet | Jose Daniel Pabón |
| contents | INTRASEASONAL VARIABILITY OF RAINFALL OVER NORTHERN SOUTH AMERICA AND CARIBBEAN REGION Jose Daniel Pabón Jennifer Dorado Delgado Ingeniería Madden Rainfall Julian Oscillation Intraseasonal Variability Based on decadal (amounts for each ten days) precipitation data from meteorological stations situated in Northern South America and Caribbean region, a decadal precipitation index (DPI) was calculated in order to study8 the intraseasonal variability (ISV) of regional rainfall. Thespectral analysis of DPI allows to identify signals with 20- 25, 30, 40 and 50-60 days period. According to the analysis of their spatial distribution these signals are well defined over the Caribbean island and coastal sector such as in some sectors of the Andean region; the 60- days signal is presented only over Caribbean region and in some places in the Pacific sector; in the eastern lowlands of Orinoco and Amazon basin these signals are not clearly expressed. Exploring the relationship between regional ISV and Madden-Julian Oscillation of correlation analysis was made. Due to the presence of signals different of 30-60 days, the correlation coefficients were very low. Considering this situation, high frequency smoothing was applied to DPI time series; after that, a relative correlation was detected between smoothed DPI and Madden-Julian Index (MJI). 2008 artículo científico 1692-9918 https://www.redalyc.org/articulo.oa?id=231116372004 en http://www.redalyc.org/revista.oa?id=2311 Ingeniería de Recursos Naturales y del Ambiente application/pdf Universidad del Valle Ingeniería de Recursos Naturales y del Ambiente (Colombia) Num.7 |
| format | Artículo científico |
| id | redalyc_231116372004 |
| institution | Redalyc |
| language | en |
| publishDate | 2008 |
| publisher | Universidad del Valle |
| spellingShingle | INTRASEASONAL VARIABILITY OF RAINFALL OVER NORTHERN SOUTH AMERICA AND CARIBBEAN REGION Jose Daniel Pabón Ingeniería Madden Rainfall Julian Oscillation Intraseasonal Variability INTRASEASONAL VARIABILITY OF RAINFALL OVER NORTHERN SOUTH AMERICA AND CARIBBEAN REGION Jose Daniel Pabón Jennifer Dorado Delgado Ingeniería Madden Rainfall Julian Oscillation Intraseasonal Variability Based on decadal (amounts for each ten days) precipitation data from meteorological stations situated in Northern South America and Caribbean region, a decadal precipitation index (DPI) was calculated in order to study8 the intraseasonal variability (ISV) of regional rainfall. Thespectral analysis of DPI allows to identify signals with 20- 25, 30, 40 and 50-60 days period. According to the analysis of their spatial distribution these signals are well defined over the Caribbean island and coastal sector such as in some sectors of the Andean region; the 60- days signal is presented only over Caribbean region and in some places in the Pacific sector; in the eastern lowlands of Orinoco and Amazon basin these signals are not clearly expressed. Exploring the relationship between regional ISV and Madden-Julian Oscillation of correlation analysis was made. Due to the presence of signals different of 30-60 days, the correlation coefficients were very low. Considering this situation, high frequency smoothing was applied to DPI time series; after that, a relative correlation was detected between smoothed DPI and Madden-Julian Index (MJI). 2008 artículo científico 1692-9918 https://www.redalyc.org/articulo.oa?id=231116372004 en http://www.redalyc.org/revista.oa?id=2311 Ingeniería de Recursos Naturales y del Ambiente application/pdf Universidad del Valle Ingeniería de Recursos Naturales y del Ambiente (Colombia) Num.7 |
| title | INTRASEASONAL VARIABILITY OF RAINFALL OVER NORTHERN SOUTH AMERICA AND CARIBBEAN REGION |
| topic | Ingeniería Madden Rainfall Julian Oscillation Intraseasonal Variability |
| url | https://www.redalyc.org/articulo.oa?id=231116372004 |