Quantification of the Direct Solar Impact on Some Components of the Hydro-Climatic System
This study addresses the causal links between external factors and the main hydro-climatic variables by using a chain of methods to unravel the complexity of the direct sun–climate link. There is a gap in the literature on the description of a complete chain in addressing the structures of direct ca...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
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| Series: | Entropy |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1099-4300/23/6/691 |
| _version_ | 1797531916043288576 |
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| author | Constantin Mares Ileana Mares Venera Dobrica Crisan Demetrescu |
| author_facet | Constantin Mares Ileana Mares Venera Dobrica Crisan Demetrescu |
| author_sort | Constantin Mares |
| collection | DOAJ |
| description | This study addresses the causal links between external factors and the main hydro-climatic variables by using a chain of methods to unravel the complexity of the direct sun–climate link. There is a gap in the literature on the description of a complete chain in addressing the structures of direct causal links of solar activity on terrestrial variables. This is why the present study uses the extensive facilities of the application of information theory in view of recent advances in different fields. Additionally, by other methods (e.g., neural networks) we first tested the existent non-linear links of solar–terrestrial influences on the hydro-climate system. The results related to the solar impact on terrestrial phenomena are promising, which is discriminant in the space-time domain. The implications prove robust for determining the causal measure of climate variables under direct solar impact, which makes it easier to consider solar activity in climate models by appropriate parametrizations. This study found that hydro-climatic variables are sensitive to solar impact only for certain frequencies (periods) and have a coherence with the Solar Flux only for some lags of the Solar Flux (in advance). |
| first_indexed | 2024-03-10T10:51:35Z |
| format | Article |
| id | doaj.art-5ace2271556647b5a8261144c7167346 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-10T10:51:35Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-5ace2271556647b5a8261144c71673462023-11-21T22:10:34ZengMDPI AGEntropy1099-43002021-05-0123669110.3390/e23060691Quantification of the Direct Solar Impact on Some Components of the Hydro-Climatic SystemConstantin Mares0Ileana Mares1Venera Dobrica2Crisan Demetrescu3Institute of Geodynamics of the Romanian Academy, R-020032 Bucharest, RomaniaInstitute of Geodynamics of the Romanian Academy, R-020032 Bucharest, RomaniaInstitute of Geodynamics of the Romanian Academy, R-020032 Bucharest, RomaniaInstitute of Geodynamics of the Romanian Academy, R-020032 Bucharest, RomaniaThis study addresses the causal links between external factors and the main hydro-climatic variables by using a chain of methods to unravel the complexity of the direct sun–climate link. There is a gap in the literature on the description of a complete chain in addressing the structures of direct causal links of solar activity on terrestrial variables. This is why the present study uses the extensive facilities of the application of information theory in view of recent advances in different fields. Additionally, by other methods (e.g., neural networks) we first tested the existent non-linear links of solar–terrestrial influences on the hydro-climate system. The results related to the solar impact on terrestrial phenomena are promising, which is discriminant in the space-time domain. The implications prove robust for determining the causal measure of climate variables under direct solar impact, which makes it easier to consider solar activity in climate models by appropriate parametrizations. This study found that hydro-climatic variables are sensitive to solar impact only for certain frequencies (periods) and have a coherence with the Solar Flux only for some lags of the Solar Flux (in advance).https://www.mdpi.com/1099-4300/23/6/691time seriescausalityentropy transferwavelet analysisneural networksclimate response |
| spellingShingle | Constantin Mares Ileana Mares Venera Dobrica Crisan Demetrescu Quantification of the Direct Solar Impact on Some Components of the Hydro-Climatic System Entropy time series causality entropy transfer wavelet analysis neural networks climate response |
| title | Quantification of the Direct Solar Impact on Some Components of the Hydro-Climatic System |
| title_full | Quantification of the Direct Solar Impact on Some Components of the Hydro-Climatic System |
| title_fullStr | Quantification of the Direct Solar Impact on Some Components of the Hydro-Climatic System |
| title_full_unstemmed | Quantification of the Direct Solar Impact on Some Components of the Hydro-Climatic System |
| title_short | Quantification of the Direct Solar Impact on Some Components of the Hydro-Climatic System |
| title_sort | quantification of the direct solar impact on some components of the hydro climatic system |
| topic | time series causality entropy transfer wavelet analysis neural networks climate response |
| url | https://www.mdpi.com/1099-4300/23/6/691 |
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