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  • 2020-2024  (4)
  • 2015-2019  (2)
  • 1
    Online Resource
    Online Resource
    El Niño southern oscillation in a changing climate (2020)
    Hoboken, NJ : Wiley-American Geophysical Union
    Details Availability
    Keywords: Climatic changes ; Ocean-atmosphere interaction ; Climatic changes ; Ocean-atmosphere interaction ; El Niño Current ; Pacific Ocean ; El Niño Current ; El-Niño-Phänomen ; Southern oscillation ; Klimaänderung
    Description / Table of Contents: "Comprehensive and up-to-date information on Earth's most dominant year-to-year climate variation The El Niño Southern Oscillation (ENSO) in the Pacific Ocean has major worldwide social and economic consequences through its global scale effects on atmospheric and oceanic circulation, marine and terrestrial ecosystems, and other natural systems. Ongoing climate change is projected to significantly alter ENSO's dynamics and impacts. El Niño Southern Oscillation in a Changing Climate presents the latest theories, models, and observations, and explores the challenges of forecasting ENSO as the climate continues to change. Volume highlights include: Historical background on ENSO and its societal consequences - Review of key El Niño (ENSO warm phase) and La Niña (ENSO cold phase) characteristics - Mathematical description of the underlying physical processes that generate ENSO variations - Conceptual framework for understanding ENSO changes on decadal and longer time scales, including the response to greenhouse gas forcing ENSO impacts on extreme ocean, weather, and climate events, including tropical cyclones, and how ENSO affects fisheries and the global carbon cycle - Advances in modeling, paleo-reconstructions, and operational climate forecasting - Future projections of ENSO and its impacts - Factors influencing ENSO events, such as inter-basin climate interactions and volcanic eruptions"--
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource
    Edition: First edition
    ISBN: 9781119548119 , 111954811X , 9781119548164
    Series Statement: Geophysical monograph series
    URL: http://dx.doi.org/10.1002/9781119548164
    URL: https://doi.org/10.1002/9781119548164
    URL: https://onlinelibrary.wiley.com/doi/book/10.1002/9781119548164
    DOI: 10.1002/9781119548164
    DDC: 551.5/24648
    Language: English
    Note: Includes index , Includes bibliographical references and index
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  • 2
    Book
    Book
    El Niño southern oscillation in a changing climate (2021)
    Hoboken, NJ : Wiley-American Geophysical Union
    Details Availability
    Keywords: Climatic changes ; Ocean-atmosphere interaction ; El Niño Current ; El-Niño-Phänomen ; Southern oscillation ; Klimaänderung
    Description / Table of Contents: "Comprehensive and up-to-date information on Earth's most dominant year-to-year climate variation The El Niño Southern Oscillation (ENSO) in the Pacific Ocean has major worldwide social and economic consequences through its global scale effects on atmospheric and oceanic circulation, marine and terrestrial ecosystems, and other natural systems. Ongoing climate change is projected to significantly alter ENSO's dynamics and impacts. El Niño Southern Oscillation in a Changing Climate presents the latest theories, models, and observations, and explores the challenges of forecasting ENSO as the climate continues to change. Volume highlights include: Historical background on ENSO and its societal consequences - Review of key El Niño (ENSO warm phase) and La Niña (ENSO cold phase) characteristics - Mathematical description of the underlying physical processes that generate ENSO variations - Conceptual framework for understanding ENSO changes on decadal and longer time scales, including the response to greenhouse gas forcing ENSO impacts on extreme ocean, weather, and climate events, including tropical cyclones, and how ENSO affects fisheries and the global carbon cycle - Advances in modeling, paleo-reconstructions, and operational climate forecasting - Future projections of ENSO and its impacts - Factors influencing ENSO events, such as inter-basin climate interactions and volcanic eruptions"--
    Type of Medium: Book
    Pages: XVI, 506 Seiten , Illustrationen
    Edition: First edition
    ISBN: 9781119548126
    Series Statement: Geophysical monograph series 253
    URL: https://www.gbv.de/dms/tib-ub-hannover/1702986012.pdf
    DDC: 551.5/24648
    Language: English
    Note: Includes index , Includes bibliographical references and index
    Location Call Number Limitation Availability
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    GEOMAR CATALOGUE
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  • 3
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    Uncertainty in near-term global surface warming linked to tropical Pacific climate variability (2019)
    Nature Research
    In:  Nature Communications, 10 (Article 1990).
    Details
    Publication Date: 2022-01-31
    Description: Climate models generally simulate a long-term slowdown of the Pacific Walker Circulation in a warming world. However, despite increasing greenhouse forcing, there was an unprecedented intensification of the Pacific Trade Winds during 1992–2011, that co-occurred with a temporary slowdown in global surface warming. Using ensemble simulations from three different climate models starting from different initial conditions, we find a large spread in projected 20-year globally averaged surface air temperature trends that can be linked to differences in Pacific climate variability. This implies diminished predictive skill for global surface air temperature trends over decadal timescales, to a large extent due to intrinsic Pacific Ocean variability. We show, however, that this uncertainty can be considerably reduced when the initial oceanic state is known and well represented in the model. In this case, the spatial patterns of 20-year surface air temperature trends depend largely on the initial state of the Pacific Ocean.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    Format: text
    DOI: 10.1038/s41467-019-09761-2
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Changing El Niño–Southern Oscillation in a warming climate (2021)
    Nature Research
    Details
    Publication Date: 2024-02-07
    Description: Originating in the equatorial Pacific, the El Niño–Southern Oscillation (ENSO) has highly consequential global impacts, motivating the need to understand its responses to anthropogenic warming. In this Review, we synthesize advances in observed and projected changes of multiple aspects of ENSO, including the processes behind such changes. As in previous syntheses, there is an inter-model consensus of an increase in future ENSO rainfall variability. Now, however, it is apparent that models that best capture key ENSO dynamics also tend to project an increase in future ENSO sea surface temperature variability and, thereby, ENSO magnitude under greenhouse warming, as well as an eastward shift and intensification of ENSO-related atmospheric teleconnections — the Pacific–North American and Pacific–South American patterns. Such projected changes are consistent with palaeoclimate evidence of stronger ENSO variability since the 1950s compared with past centuries. The increase in ENSO variability, though underpinned by increased equatorial Pacific upper-ocean stratification, is strongly influenced by internal variability, raising issues about its quantifiability and detectability. Yet, ongoing coordinated community efforts and computational advances are enabling long-simulation, large-ensemble experiments and high-resolution modelling, offering encouraging prospects for alleviating model biases, incorporating fundamental dynamical processes and reducing uncertainties in projections. Key points Under anthropogenic warming, the majority of climate models project faster background warming in the eastern equatorial Pacific compared with the west. The observed equatorial Pacific surface warming pattern since 1980, though opposite to the projected faster warming in the equatorial eastern Pacific, is within the inter-model range in terms of sea surface temperature (SST) gradients and is subject to influence from internal variability. El Niño–Southern Oscillation (ENSO) rainfall responses in the equatorial Pacific are projected to intensify and shift eastward, leading to an eastward intensification of extratropical teleconnections. ENSO SST variability and extreme ENSO events are projected to increase under greenhouse warming, with a stronger inter-model consensus in CMIP6 compared with CMIP5. However, the time of emergence for ENSO SST variability is later than that for ENSO rainfall variability, opposite to that for mean SST versus mean rainfall. Future ENSO change is likely influenced by past variability, such that quantification of future ENSO in the only realization of the real world is challenging. Although there is no definitive relationship of ENSO variability with the mean zonal SST gradient or seasonal cycle, palaeoclimate records suggest a causal connection between vertical temperature stratification and ENSO strength, and a greater ENSO strength since the 1950s than in past centuries, supporting an emerging increase in ENSO variability under greenhouse warming.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 5
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    Mechanisms of tropical Pacific decadal variability (2023)
    Details
    Publication Date: 2024-02-07
    Description: Naturally occurring tropical Pacific variations at timescales of 7–70 years — tropical Pacific decadal variability (TPDV) — describe basin-scale sea surface temperature (SST), sea-level pressure and heat content anomalies. Several mechanisms are proposed to explain TPDV, which can originate through oceanic processes, atmospheric processes or as an El Niño/Southern Oscillation (ENSO) residual. In this Review, we synthesize knowledge of these mechanisms, their characteristics and contribution to TPDV. Oceanic processes include off-equatorial Rossby waves, which mediate oceanic adjustment and contribute to variations in equatorial thermocline depth and SST; variations in the strength of the shallow upper-ocean overturning circulation, which exhibit a large anti-correlation with equatorial Pacific SST at interannual and decadal timescales; and the propagation of salinity-compensated temperature (spiciness) anomalies from the subtropics to the equatorial thermocline. Atmospheric processes include midlatitude internal variability leading to tropical and subtropical wind anomalies, which result in equatorial SST anomalies and feedbacks that enhance persistence; and atmospheric teleconnections from Atlantic and Indian Ocean SST variability, which induce winds conducive to decadal anomalies of the opposite sign in the Pacific. Although uncertain, the tropical adjustment through Rossby wave activity is likely a dominant mechanism. A deeper understanding of the origin and spectral characteristics of TPDV-related winds is a key priority.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 6
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    El Nino–Southern Oscillation complexity (2018)
    Nature Research
    Details
    Publication Date: 2024-04-19
    Description: El Niño events are characterized by surface warming of the tropical Pacific Ocean and weakening of equatorial trade winds that occur every few years. Such conditions are accompanied by changes in atmospheric and oceanic circulation, affecting global climate, marine and terrestrial ecosystems, fisheries and human activities. The alternation of warm El Niño and cold La Niña conditions, referred to as the El Niño–Southern Oscillation (ENSO), represents the strongest year-to-year fluctuation of the global climate system. Here we provide a synopsis of our current understanding of the spatio-temporal complexity of this important climate mode and its influence on the Earth system.
    Type: Article , PeerReviewed
    Format: text
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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