Entropy analysis of the dynamics of El Niño/Southern Oscillation during the Holocene

This study explores temporal changes in the dynamics of the Holocene ENSO proxy record of the Laguna Pallcacocha sedimentary data using two entropy quantifiers. In particular, we analyze the possible connections between changes in entropy and epochs of rapid climate change (RCC). Our results indicat...

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Detalles Bibliográficos
Autores principales: Saco, P.M., Carpi, L.C., Figliola, A., Serrano, E., Rosso, O.A.
Formato: JOUR
Materias:
ENSO dynamics
Entropy
Probability distribution
Time series analysis
Entropy analysis
Holocenes
Late Holocene
Low entropy
Proxy records
Rapid climate change
Temporal change
Climate change
Dynamics
Nickel compounds
Probability distributions
Time series
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03784371_v389_n21_p5022_Saco
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03784371_v389_n21_p5022_Saco
record_format dspace
spelling todo:paper_03784371_v389_n21_p5022_Saco2023-10-03T15:32:56Z Entropy analysis of the dynamics of El Niño/Southern Oscillation during the Holocene Saco, P.M. Carpi, L.C. Figliola, A. Serrano, E. Rosso, O.A. ENSO dynamics Entropy Probability distribution Time series analysis ENSO dynamics Entropy analysis Holocenes Late Holocene Low entropy Proxy records Rapid climate change Temporal change Climate change Dynamics Entropy Nickel compounds Probability distributions Time series Time series analysis This study explores temporal changes in the dynamics of the Holocene ENSO proxy record of the Laguna Pallcacocha sedimentary data using two entropy quantifiers. In particular, we analyze the possible connections between changes in entropy and epochs of rapid climate change (RCC). Our results indicate that the dynamics of the ENSO proxy record during the RCC interval 90008000 BP displays very low entropy (high predictability) that is remarkably different from that of the other RCCs of the Holocene. Both entropy quantifiers point out to the existence of cycles with a period close to 2000 years during the mid-to-late Holocene. Within these cycles, we find a tendency for entropy to increase (predictability to decrease) during the two longer RCC periods (60005000 and 35002500 BP) which might be associated with the reported increased aridity of the low tropics. © 2010 Elsevier B.V. All rights reserved. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03784371_v389_n21_p5022_Saco
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic ENSO dynamics
Entropy
Probability distribution
Time series analysis
ENSO dynamics
Entropy analysis
Holocenes
Late Holocene
Low entropy
Proxy records
Rapid climate change
Temporal change
Climate change
Dynamics
Entropy
Nickel compounds
Probability distributions
Time series
Time series analysis
spellingShingle ENSO dynamics
Entropy
Probability distribution
Time series analysis
ENSO dynamics
Entropy analysis
Holocenes
Late Holocene
Low entropy
Proxy records
Rapid climate change
Temporal change
Climate change
Dynamics
Entropy
Nickel compounds
Probability distributions
Time series
Time series analysis
Saco, P.M.
Carpi, L.C.
Figliola, A.
Serrano, E.
Rosso, O.A.
Entropy analysis of the dynamics of El Niño/Southern Oscillation during the Holocene
topic_facet ENSO dynamics
Entropy
Probability distribution
Time series analysis
ENSO dynamics
Entropy analysis
Holocenes
Late Holocene
Low entropy
Proxy records
Rapid climate change
Temporal change
Climate change
Dynamics
Entropy
Nickel compounds
Probability distributions
Time series
Time series analysis
description This study explores temporal changes in the dynamics of the Holocene ENSO proxy record of the Laguna Pallcacocha sedimentary data using two entropy quantifiers. In particular, we analyze the possible connections between changes in entropy and epochs of rapid climate change (RCC). Our results indicate that the dynamics of the ENSO proxy record during the RCC interval 90008000 BP displays very low entropy (high predictability) that is remarkably different from that of the other RCCs of the Holocene. Both entropy quantifiers point out to the existence of cycles with a period close to 2000 years during the mid-to-late Holocene. Within these cycles, we find a tendency for entropy to increase (predictability to decrease) during the two longer RCC periods (60005000 and 35002500 BP) which might be associated with the reported increased aridity of the low tropics. © 2010 Elsevier B.V. All rights reserved.
format JOUR
author Saco, P.M.
Carpi, L.C.
Figliola, A.
Serrano, E.
Rosso, O.A.
author_facet Saco, P.M.
Carpi, L.C.
Figliola, A.
Serrano, E.
Rosso, O.A.
author_sort Saco, P.M.
title Entropy analysis of the dynamics of El Niño/Southern Oscillation during the Holocene
title_short Entropy analysis of the dynamics of El Niño/Southern Oscillation during the Holocene
title_full Entropy analysis of the dynamics of El Niño/Southern Oscillation during the Holocene
title_fullStr Entropy analysis of the dynamics of El Niño/Southern Oscillation during the Holocene
title_full_unstemmed Entropy analysis of the dynamics of El Niño/Southern Oscillation during the Holocene
title_sort entropy analysis of the dynamics of el niño/southern oscillation during the holocene
url http://hdl.handle.net/20.500.12110/paper_03784371_v389_n21_p5022_Saco
work_keys_str_mv AT sacopm entropyanalysisofthedynamicsofelninosouthernoscillationduringtheholocene
AT carpilc entropyanalysisofthedynamicsofelninosouthernoscillationduringtheholocene
AT figliolaa entropyanalysisofthedynamicsofelninosouthernoscillationduringtheholocene
AT serranoe entropyanalysisofthedynamicsofelninosouthernoscillationduringtheholocene
AT rossooa entropyanalysisofthedynamicsofelninosouthernoscillationduringtheholocene
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