Long-term solar activity influences on South American rivers
River streamflows are excellent climatic indicators since they integrate precipitation over large areas. Here we follow up on our previous study of the influence of solar activity on the flow of the Paraná River, in South America. We find that the unusual minimum of solar activity in recent years ha...
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2011
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13646826_v73_n2-3_p377_Mauas http://hdl.handle.net/20.500.12110/paper_13646826_v73_n2-3_p377_Mauas |
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paper:paper_13646826_v73_n2-3_p377_Mauas2023-06-08T16:11:58Z Long-term solar activity influences on South American rivers Solar activity South American rivers Streamflow Andean Region Climatic indicators Follow up Little Ice Age Low level Patagonia Positive correlations Secular trend Solar activity Solar cycle South America South American rivers Sunspot number Rivers Solar radiation Stream flow Water levels Solar energy River streamflows are excellent climatic indicators since they integrate precipitation over large areas. Here we follow up on our previous study of the influence of solar activity on the flow of the Paraná River, in South America. We find that the unusual minimum of solar activity in recent years have a correlation on very low levels in the Paraná's flow, and we report historical evidence of low water levels during the Little Ice Age. We also study data for the streamflow of three other rivers (Colorado, San Juan and Atuel), and snow levels in the Andes. We obtained that, after eliminating the secular trends and smoothing out the solar cycle, there is a strong positive correlation between the residuals of both the Sunspot Number and the streamflows, as we obtained for the Paraná. Both results put together imply that higher solar activity corresponds to larger precipitation, both in summer and in wintertime, not only in the large basin of the Paraná, but also in the Andean region north of the limit with Patagonia. © 2010 Elsevier Ltd. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13646826_v73_n2-3_p377_Mauas http://hdl.handle.net/20.500.12110/paper_13646826_v73_n2-3_p377_Mauas |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Solar activity South American rivers Streamflow Andean Region Climatic indicators Follow up Little Ice Age Low level Patagonia Positive correlations Secular trend Solar activity Solar cycle South America South American rivers Sunspot number Rivers Solar radiation Stream flow Water levels Solar energy |
| spellingShingle |
Solar activity South American rivers Streamflow Andean Region Climatic indicators Follow up Little Ice Age Low level Patagonia Positive correlations Secular trend Solar activity Solar cycle South America South American rivers Sunspot number Rivers Solar radiation Stream flow Water levels Solar energy Long-term solar activity influences on South American rivers |
| topic_facet |
Solar activity South American rivers Streamflow Andean Region Climatic indicators Follow up Little Ice Age Low level Patagonia Positive correlations Secular trend Solar activity Solar cycle South America South American rivers Sunspot number Rivers Solar radiation Stream flow Water levels Solar energy |
| description |
River streamflows are excellent climatic indicators since they integrate precipitation over large areas. Here we follow up on our previous study of the influence of solar activity on the flow of the Paraná River, in South America. We find that the unusual minimum of solar activity in recent years have a correlation on very low levels in the Paraná's flow, and we report historical evidence of low water levels during the Little Ice Age. We also study data for the streamflow of three other rivers (Colorado, San Juan and Atuel), and snow levels in the Andes. We obtained that, after eliminating the secular trends and smoothing out the solar cycle, there is a strong positive correlation between the residuals of both the Sunspot Number and the streamflows, as we obtained for the Paraná. Both results put together imply that higher solar activity corresponds to larger precipitation, both in summer and in wintertime, not only in the large basin of the Paraná, but also in the Andean region north of the limit with Patagonia. © 2010 Elsevier Ltd. |
| title |
Long-term solar activity influences on South American rivers |
| title_short |
Long-term solar activity influences on South American rivers |
| title_full |
Long-term solar activity influences on South American rivers |
| title_fullStr |
Long-term solar activity influences on South American rivers |
| title_full_unstemmed |
Long-term solar activity influences on South American rivers |
| title_sort |
long-term solar activity influences on south american rivers |
| publishDate |
2011 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_13646826_v73_n2-3_p377_Mauas http://hdl.handle.net/20.500.12110/paper_13646826_v73_n2-3_p377_Mauas |
| _version_ |
1768544333333528576 |