Long-range properties and data validity for hydrogeological time series: the case of the Paglia river
This paper explores a large collection of about 377,000 observations, spanning more than 20 years with a frequency of 30 minutes, of the streamflow of the Paglia river, in central Italy. We analyze the long-term persistence properties of the series by computing the Hurst exponent, not only in its or...
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ftdatacite:10.48550/arxiv.1611.09167 2023-05-15T17:35:34+02:00 Long-range properties and data validity for hydrogeological time series: the case of the Paglia river Ausloos, Marcel Cerqueti, Roy Lupi, Claudio 2016 https://dx.doi.org/10.48550/arxiv.1611.09167 https://arxiv.org/abs/1611.09167 unknown arXiv https://dx.doi.org/10.1016/j.physa.2016.11.137 arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ Geophysics physics.geo-ph Statistical Mechanics cond-mat.stat-mech Applications stat.AP FOS Physical sciences FOS Computer and information sciences article-journal Article ScholarlyArticle Text 2016 ftdatacite https://doi.org/10.48550/arxiv.1611.09167 https://doi.org/10.1016/j.physa.2016.11.137 2022-04-01T11:16:48Z This paper explores a large collection of about 377,000 observations, spanning more than 20 years with a frequency of 30 minutes, of the streamflow of the Paglia river, in central Italy. We analyze the long-term persistence properties of the series by computing the Hurst exponent, not only in its original form but also under an evolutionary point of view by analyzing the Hurst exponents over a rolling windows basis. The methodological tool adopted for the persistence is the detrended fluctuation analysis (DFA), which is classically known as suitable for our purpose. As an ancillary exploration, we implement a control on the data validity by assessing if the data exhibit the regularity stated by Benford's law. Results are interesting under different viewpoints. First, we show that the Paglia river streamflow exhibits periodicities which broadly suggest the existence of some common behaviour with El Nino and the North Atlantic Oscillations: this specifically points to a (not necessarily direct) effect of these oceanic phenomena on the hydrogeological equilibria of very far geographical zones: however, such an hypothesis needs further analyses to be validated. Second, the series of streamflows shows an antipersistent behaviour. Third, data are not consistent with Benford's law: this suggests that the measurement criteria should be opportunely revised. Fourth, the streamflow distribution is well approximated by a discrete generalized Beta distribution: this is well in accordance with the measured streamflows being the outcome of a complex system. : prepared for Physica A; 23 pages; 42 references; 3 tables; 11 figures Text North Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
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Geophysics physics.geo-ph Statistical Mechanics cond-mat.stat-mech Applications stat.AP FOS Physical sciences FOS Computer and information sciences |
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Geophysics physics.geo-ph Statistical Mechanics cond-mat.stat-mech Applications stat.AP FOS Physical sciences FOS Computer and information sciences Ausloos, Marcel Cerqueti, Roy Lupi, Claudio Long-range properties and data validity for hydrogeological time series: the case of the Paglia river |
topic_facet |
Geophysics physics.geo-ph Statistical Mechanics cond-mat.stat-mech Applications stat.AP FOS Physical sciences FOS Computer and information sciences |
description |
This paper explores a large collection of about 377,000 observations, spanning more than 20 years with a frequency of 30 minutes, of the streamflow of the Paglia river, in central Italy. We analyze the long-term persistence properties of the series by computing the Hurst exponent, not only in its original form but also under an evolutionary point of view by analyzing the Hurst exponents over a rolling windows basis. The methodological tool adopted for the persistence is the detrended fluctuation analysis (DFA), which is classically known as suitable for our purpose. As an ancillary exploration, we implement a control on the data validity by assessing if the data exhibit the regularity stated by Benford's law. Results are interesting under different viewpoints. First, we show that the Paglia river streamflow exhibits periodicities which broadly suggest the existence of some common behaviour with El Nino and the North Atlantic Oscillations: this specifically points to a (not necessarily direct) effect of these oceanic phenomena on the hydrogeological equilibria of very far geographical zones: however, such an hypothesis needs further analyses to be validated. Second, the series of streamflows shows an antipersistent behaviour. Third, data are not consistent with Benford's law: this suggests that the measurement criteria should be opportunely revised. Fourth, the streamflow distribution is well approximated by a discrete generalized Beta distribution: this is well in accordance with the measured streamflows being the outcome of a complex system. : prepared for Physica A; 23 pages; 42 references; 3 tables; 11 figures |
format |
Text |
author |
Ausloos, Marcel Cerqueti, Roy Lupi, Claudio |
author_facet |
Ausloos, Marcel Cerqueti, Roy Lupi, Claudio |
author_sort |
Ausloos, Marcel |
title |
Long-range properties and data validity for hydrogeological time series: the case of the Paglia river |
title_short |
Long-range properties and data validity for hydrogeological time series: the case of the Paglia river |
title_full |
Long-range properties and data validity for hydrogeological time series: the case of the Paglia river |
title_fullStr |
Long-range properties and data validity for hydrogeological time series: the case of the Paglia river |
title_full_unstemmed |
Long-range properties and data validity for hydrogeological time series: the case of the Paglia river |
title_sort |
long-range properties and data validity for hydrogeological time series: the case of the paglia river |
publisher |
arXiv |
publishDate |
2016 |
url |
https://dx.doi.org/10.48550/arxiv.1611.09167 https://arxiv.org/abs/1611.09167 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://dx.doi.org/10.1016/j.physa.2016.11.137 |
op_rights |
arXiv.org perpetual, non-exclusive license http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
op_doi |
https://doi.org/10.48550/arxiv.1611.09167 https://doi.org/10.1016/j.physa.2016.11.137 |
_version_ |
1766134770925830144 |