Unravelling the spatial diversity of Indian precipitation teleconnections via a non-linear multi-scale approach
A better understanding of precipitation dynamics in the Indian subcontinent is required since India's society depends heavily on reliable monsoon forecasts. We introduce a non-linear, multiscale approach, based on wavelets and event synchronization, for unravelling teleconnection influences on...
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ftleibnizopen:oai:oai.leibnizopen.de:A_0pF4cBdbrxVwz6Pk0a 2023-05-15T17:30:38+02:00 Unravelling the spatial diversity of Indian precipitation teleconnections via a non-linear multi-scale approach Kurths, Jürgen Agarwal, Ankit Shukla, Roopam Marwan, Norbert Rathinasamy, Maheswaran Caesar, Levke Krishnan, Raghavan Merz, Bruno 2019 application/pdf https://oa.tib.eu/renate/handle/123456789/7539 https://doi.org/10.34657/6586 eng eng Katlenburg-Lindau : European Geophysical Society CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ Nonlinear processes in geophysics 26 (2019), Nr. 3 Atlantic Multidecadal Oscillation El Nino-Southern Oscillation Indian Ocean Dipole monsoon North Atlantic Oscillation Pacific Decadal Oscillation precipitation (climatology) spatial analysis teleconnection weather forecasting India 550 article Text 2019 ftleibnizopen https://doi.org/10.34657/6586 2023-03-26T23:31:19Z A better understanding of precipitation dynamics in the Indian subcontinent is required since India's society depends heavily on reliable monsoon forecasts. We introduce a non-linear, multiscale approach, based on wavelets and event synchronization, for unravelling teleconnection influences on precipitation. We consider those climate patterns with the highest relevance for Indian precipitation. Our results suggest significant influences which are not well captured by only the wavelet coherence analysis, the state-of-the-art method in understanding linkages at multiple timescales. We find substantial variation across India and across timescales. In particular, El Niño-Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) mainly influence precipitation in the south-east at interannual and decadal scales, respectively, whereas the North Atlantic Oscillation (NAO) has a strong connection to precipitation, particularly in the northern regions. The effect of the Pacific Decadal Oscillation (PDO) stretches across the whole country, whereas the Atlantic Multidecadal Oscillation (AMO) influences precipitation particularly in the central arid and semi-arid regions. The proposed method provides a powerful approach for capturing the dynamics of precipitation and, hence, helps improve precipitation forecasting. © 2019 Author(s). publishedVersion Article in Journal/Newspaper North Atlantic North Atlantic oscillation LeibnizOpen (The Leibniz Association) Indian Pacific |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
Atlantic Multidecadal Oscillation El Nino-Southern Oscillation Indian Ocean Dipole monsoon North Atlantic Oscillation Pacific Decadal Oscillation precipitation (climatology) spatial analysis teleconnection weather forecasting India 550 |
spellingShingle |
Atlantic Multidecadal Oscillation El Nino-Southern Oscillation Indian Ocean Dipole monsoon North Atlantic Oscillation Pacific Decadal Oscillation precipitation (climatology) spatial analysis teleconnection weather forecasting India 550 Kurths, Jürgen Agarwal, Ankit Shukla, Roopam Marwan, Norbert Rathinasamy, Maheswaran Caesar, Levke Krishnan, Raghavan Merz, Bruno Unravelling the spatial diversity of Indian precipitation teleconnections via a non-linear multi-scale approach |
topic_facet |
Atlantic Multidecadal Oscillation El Nino-Southern Oscillation Indian Ocean Dipole monsoon North Atlantic Oscillation Pacific Decadal Oscillation precipitation (climatology) spatial analysis teleconnection weather forecasting India 550 |
description |
A better understanding of precipitation dynamics in the Indian subcontinent is required since India's society depends heavily on reliable monsoon forecasts. We introduce a non-linear, multiscale approach, based on wavelets and event synchronization, for unravelling teleconnection influences on precipitation. We consider those climate patterns with the highest relevance for Indian precipitation. Our results suggest significant influences which are not well captured by only the wavelet coherence analysis, the state-of-the-art method in understanding linkages at multiple timescales. We find substantial variation across India and across timescales. In particular, El Niño-Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) mainly influence precipitation in the south-east at interannual and decadal scales, respectively, whereas the North Atlantic Oscillation (NAO) has a strong connection to precipitation, particularly in the northern regions. The effect of the Pacific Decadal Oscillation (PDO) stretches across the whole country, whereas the Atlantic Multidecadal Oscillation (AMO) influences precipitation particularly in the central arid and semi-arid regions. The proposed method provides a powerful approach for capturing the dynamics of precipitation and, hence, helps improve precipitation forecasting. © 2019 Author(s). publishedVersion |
format |
Article in Journal/Newspaper |
author |
Kurths, Jürgen Agarwal, Ankit Shukla, Roopam Marwan, Norbert Rathinasamy, Maheswaran Caesar, Levke Krishnan, Raghavan Merz, Bruno |
author_facet |
Kurths, Jürgen Agarwal, Ankit Shukla, Roopam Marwan, Norbert Rathinasamy, Maheswaran Caesar, Levke Krishnan, Raghavan Merz, Bruno |
author_sort |
Kurths, Jürgen |
title |
Unravelling the spatial diversity of Indian precipitation teleconnections via a non-linear multi-scale approach |
title_short |
Unravelling the spatial diversity of Indian precipitation teleconnections via a non-linear multi-scale approach |
title_full |
Unravelling the spatial diversity of Indian precipitation teleconnections via a non-linear multi-scale approach |
title_fullStr |
Unravelling the spatial diversity of Indian precipitation teleconnections via a non-linear multi-scale approach |
title_full_unstemmed |
Unravelling the spatial diversity of Indian precipitation teleconnections via a non-linear multi-scale approach |
title_sort |
unravelling the spatial diversity of indian precipitation teleconnections via a non-linear multi-scale approach |
publisher |
Katlenburg-Lindau : European Geophysical Society |
publishDate |
2019 |
url |
https://oa.tib.eu/renate/handle/123456789/7539 https://doi.org/10.34657/6586 |
geographic |
Indian Pacific |
geographic_facet |
Indian Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Nonlinear processes in geophysics 26 (2019), Nr. 3 |
op_rights |
CC BY 4.0 Unported https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.34657/6586 |
_version_ |
1766127507495452672 |