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14 results for “El Niño - Southern Oscillation”
Dataset for manuscript "El Niño Southern Oscillation and Tropical Basin Interaction in Idealized Worlds"
<p>Dataset accompanying the manuscript<br>Dommenget and Hutchinson, 2025: El Niño Southern Oscillation and Tropical Basin Interaction in Idealized Worlds,<strong> Climate Dynamics, </strong>63, p274 doi: <a href="https://doi.org/10.1007/s00382-025-07759-9">10.1007/s00382-025-07759-9</a></p> <p>This dataset contains the following tar files:<br>control-a55c1.tar<br>coralsea.tar<br>hermanito2.tar<br>inf-trop.tar<br>solo100.tar<br>solo150.tar<br>solo200.tar<br>solo250.tar<br>solo300.tar<br>solo350.tar<br>solo50.tar<br>trio120.tar<br>trio160.tar<br>trio200.tar<br>trio.tar<br>twins.tar<br><br></p> <p>Each tar file is a folder corresponding to an experiment, described in the manuscript. There are 4 subfolders in each experiment:<br>ancil <br>input <br>results <br>scripts</p> <p><br>The `results` folder contains post-processed data which forms the analysis in the manuscript. These are in compressed netcdf form, with self-describing variables.<br>The `scripts` folder contains a `create.ancil.files.*` script, which was used to generate the input boundary conditions, and a `gfdl-run.cold.start.*` script, which was used to run the experiment on Gadi (nci.org.au).<br>The `ancil` and `input` folders contain various input files that are used as inputs to each experiment. These inputs are included for reproducibility, but are by no means easy to understand without expert knowledge of the GFDL model.</p> <p>We anticipate that the `results` folder is self-explanatory, while the `ancil`, `input` and `scripts` folders are not easy to understand unless you have experience with running GFDL CM2.1. Contact the authors if you want information on how to run the experiments using these inputs.</p>
The model data of Potential Impact of Spring Thermal Forcing over the Tibetan Plateau on the Following Winter El Niño–Southern Oscillation
<p>This is the model data of "Potential Impact of Spring Thermal Forcing over the Tibetan Plateau on the Following Winter El Niño–Southern Oscillation". The data includes the last 20 years data of control run (CTRL), the 20 years data of TP–T experiment, and the wave activity flux difference between ensemble means of TP–T and CTRL. 2D is two dimensions. 3D is three dimensions.</p>
Coupling and de-coupling of the El Niño Southern Oscillation to the supply of larval fishes to benthic populations in the Hawaiian Islands
<p>Several recent high intensity ENSO events have caused strong negative impacts on the adult phases of foundational species in coral reef ecosystems, but comparatively little is known about how climatic variables related to recent ENSOs are impacting the supply of larvae to benthic populations. In marine fishes and invertebrates, reproductive adults and planktonic larvae are generally more sensitive to environmental variability than older, non-reproductive adults. Further, the transport of larvae in ocean currents may also be strongly ENSO dependent. The interactions between the dynamics of larval survivorship and larval transport could lead to population bottlenecks as stronger ENSO events become more common. We tested the predictions of this hypothesis around the Main Hawaiian Islands (MHI) by constructing a correlation matrix of physical and biological time series variables that spanned 11 years (2007 – 2017) and multiple ENSO events. Our correlation matrix included four types of variables: i. published ENSO indices, ii. satellite-derived sea surface temperature (SST) and chlorophyll variables, iii. abundance and diversity of larval fishes sampled during the late winter spawning season off Oahu, and iv. abundance and diversity of coral reef fish recruits sampled on the western shore of the Big Island of Hawaii. We found that the abundance and diversity of larval fishes was negatively correlated with the Multivariate El Niño Index (MEI), and that larval variables were positively correlated with measures of fall recruitment (September & November), but not correlated with spring-summer recruitment (May & July). In the MHI, SST variables were not correlated with the MEI, but two successive El Niño events of 2014-15 and 2015-2016 were characterized by SST maxima approaching 30 °C. Two large pulses of benthic recruitment occurred in the 2009 and 2014 recruitment seasons, with > 8000 recruits observed by divers over the summer and fall months. Both events were characterized by either neutral or negative MEI indices measured during the preceding winter months. These patterns suggest that La Niña and the neutral phases of the ENSO cycle are generally favorable for adult reproduction and larval development in the spring and summer, while El Niño phases may limit recruitment in the late summer and fall. We hypothesize that episodic recruitment during non-El Niño phases is related to favorable survivorship and transport dynamics that are associated with the formation of pairs of anticyclonic and cyclonic eddies on the leeward sides (western shores) of the Main Hawaiian Islands.</p>
Data for "Strong linkage of El Niño-Southern Oscillation to the polar cold air mass in the Northern Hemisphere"
<p>This repository archives codes for analysis and plot presented in Abdillah et al. (2018): "Strong linkage of El Niño-Southern Oscillation to the polar cold air mass in the Northern Hemisphere". The codes are written in GrADS, Octave, and NCL format. </p> <p>The repository also includes a Fortran package for isentropic polar cold air mass diagnosis as in Iwasaki et al. (2014). The package was specifically created by Dr. Y. Kanno.</p> <p>Reference:</p> <p>Abdillah, M. R., Kanno, Y., Iwasaki, T. (2018). Strong linkage of El Niño‐Southern Oscillation to the polar cold air mass in the Northern Hemisphere. <em>Geophysical Research Letters, in press. </em>https://doi.org/10.1029/2018GL077612</p> <p>Iwasaki, T., Shoji, T., Kanno, Y., Sawada, M., Ujiie, M., & Takaya, K. (2014). Isentropic Analysis of Polar Cold Airmass Streams in the Northern Hemispheric Winter. <em>Journal of the Atmospheric Sciences</em>, <em>71</em>(6), 2230–2243. https://doi.org/10.1175/JAS-D-13-058.1</p>
Potential Impact of Winter–Spring North Atlantic Tripole SSTAs on the Following Autumn–Winter El Niño–Southern Oscillation: Bridging Role of the Tibetan Plateau
<p>This is the key model data of "Potential Impact of Winter–Spring North Atlantic Tripole SSTAs on the Following Autumn–Winter El Niño–Southern Oscillation: Bridging Role of the Tibetan Plateau". The data includes the last 25 years data of the CTRL experiment, and 25 years data of the CTRL_NTP experiment, the NA_ST experiment, and the NA_ST_NTP experiment, respectively. "2D" is two-dimensional variables , "3D" is three-dimensional variables, and "pottmp" is ocean potential temperature.</p>
Coupling and de-coupling of the El Niño Southern Oscillation to the supply of larval fishes to benthic populations in the Hawaiian Islands
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Data from: Breaking out of the comfort zone: El Niño-Southern Oscillation as a driver of trophic flows in a benthic consumer of the Humboldt Current ecosystem
The trophic flow of a species is considered a characteristic trait reflecting its trophic position and function in the ecosystem and its interaction with the environment. However, climate patterns are changing and we ignore how patterns of trophic flow are being affected. In the Humboldt Current ecosystem, arguably one of the most productive marine systems, El Niño-Southern Oscillation is the main source of interannual and longer-term variability. To assess the effect of this variability on trophic flow we built a 16-year series of mass-specific somatic production rate (P/B) of the Peruvian scallop (Argopecten purpuratus), a species belonging to a former tropical fauna that thrived in this cold ecosystem. A strong increase of the P/B ratio of this species was observed during nutrient-poor, warmer water conditions typical of El Niño, owing to the massive recruitment of fast-growing juvenile scallops. Trophic ecology theory predicts that when primary production is nutrient limited, the trophic flow of organisms occupying low trophic levels should be constrained (bottom-up control). For former tropical fauna thriving in cold, productive upwelling coastal zones, a short time of low food conditions but warm waters during El Niño could be sufficient to waken their ancestral biological features and display massive proliferations.
Persistently active El Niño–Southern Oscillation since the Mesozoic
<p>Data generated in this study are archived here.</p>
The history of the El Niño‒Southern Oscillation and sea surface salinity during 1376‒1500 CE reconstructed by Porites coral δ18O from Huangyan Island, South China Sea
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Changes in BVOC emissions in response to the El Niño-Southern Oscillation | Data & scripts
<p>Data and Python scripts used for the study "Changes in BVOC emissions in response to the El Niño-Southern Oscillation" Vella et al. Preprint published on EGUSphere on 03 May 2023.</p>
The Potential Influence of Maritime Continent Deforestation on El Niño-Southern Oscillation: Insights from Idealized Modeling Experiments
<p>Codes for the Figures and Tables shown in the paper "The Potential Influence of Maritime Continent Deforestation on El Niño-Southern Oscillation: Insights from Idealized Modeling Experiments"</p> <p>Also, the restart and initial data are used to drive CESM1.</p>
Data from: Breaking out of the comfort zone: El Niño-Southern Oscillation as a driver of trophic flows in a benthic consumer of the Humboldt Current ecosystem
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Data and analysis code for "Increased frequency of multi-year El Niño-Southern Oscillation events across the Holocene"
<p>Data and analysis code for "Increased frequency of multi-year El Niño-Southern Oscillation events across the Holocene" </p> <p>In "Zenodo.zip",</p> <ul> <li>Code to produce the main figures (Figs. 1-4) in the manuscript: Matlab code named as Fig#_202411.m</li> <li>Other Matlab functions used in the code </li> <li>Nino 3.4 monthly surface (sea/air) temperature data: 8 NetCDF files named Model-Name_variable_N34_mon_final.nc for 8 transient Holocene simulations</li> <li>Tropical Pacific climatological surface temperature and ocean subsurface temperature: processed as Tpac_tmp_response or Tsub_Model-name_response in MAT(matlab) format </li> <li>Nino 3.4 and 1+2 SST anomalies from ERSST.v5: N1234_ersst_1854_2023 in MAT format</li> <li>Central Pacific fossil coral data from Grothe et al. 2020 (accessed at https://www.ncei.noaa.gov/access/paleo-search/study/22415)</li> <li>Other MAT files temporarily generated for figure plots</li> </ul>
Data for "Arctic sea ice–air interactions weaken El Niño–Southern Oscillation"
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