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Prof. Stefano
Pierini’s home page |
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Research (Ricerca): |
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The first Intrinsic Mean State ever detected in the
context of Physical Oceanography is the Mediterranean skeleton |
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® There is a Call for
Papers for the Focus Issue in Chaos (American Institute of Physics
Publishing) on “Nonautonomous Dynamics in the
Climate Sciences” |
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An International Seminar and Workshop entitled “Nonautonomous Dynamics in Complex
Systems: Theory and Applications to Critical Transitions” was
held in Dresden at the mpipks (Max
Planck Institute for the Physics of Complex Systems) on 9-27
October 2023 (group photo). SP was
among the invited speakers (his presentation can be downloaded here) |
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A Minisymposium entitled “Nonautonomous
Dynamical Systems in the Climate Sciences” was organized by
Ghil, Pierini and Tél for the XLIII
Dynamics Days Europe Conference held in Naples on
3-8 September 2023 |
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SP
coordinated the Horizon 2020 “GAPWEBS” HYDRALAB+ Project |
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Prof.
Henk A. Dijkstra’s seminar at the DiST (September 29, 2022) |
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Dr.
Thierry Penduff’s seminar at the DiST (October 12, 2021) |
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Prof.
Michael Ghil’s seminar at the DiST (September 29, 2021) |
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La Parthenope contribuisce a
verificare, in maniera elegante e innovativa, l’ipotesi di Milankovitch (in
Italian) |
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Climatologia alla Parthenope: uno
studio dei tipping points climatici in sistemi eccitabili (in
Italian) |
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Il DiST a Budapest (in
Italian) |
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Modelling the marine circulation in the Campania
Coastal System: CROM, CCMMMA, POM, publications: 1, 2, 3, 4, 5, 6, 7, 8 |
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10 Publications as senior author in major international
journals in the last 10 years: 2014-2023; 2011-2020 |
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Recent involvement in
the organization of sessions of international conferences |
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Teaching (Didattica): |
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Corso di
Laurea in “Scienze Nautiche, Aeronautiche e Meteo-Oceanografiche”; PDF (in
Italian) |
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Presentazione
del Corso di Laurea Magistrale in “Scienze e Tecnologie della Navigazione” (in
Italian) |
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Master di II
Livello in Meteorologia e Oceanografia Fisica (in
Italian) |
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Lectures given at the DiST by Prof. Michael Ghil
(October 2016) |
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Research Interests (Interessi di Ricerca): - My most recent research interest concerns the dynamical systems
characterization of the link between orbital forcing and glacial terminations implied by the Milankovitch hypothesis.
To this respect I have proposed a dynamical systems paradigm denoted
deterministic excitation, which I have applied to the late Pleistocene ice
age. - One of my main current research interests is the analysis of the
pullback attractors of nonautonomous chaotic nonlinear dynamical systems, and
the role the knowledge of such time-dependent attractors may play in
improving our understanding of the system’s intrinsic variability. The
nonlinear mathematical tools used in the numerical analyses include both
low-dimensional systems of coupled ordinary differential equations and the
partial differential equations describing the fluid motion of large-scale oceans
in a rotating reference frame. - In recent years I have conducted process-oriented modeling studies on
nonlinear western boundary currents -and on the intrinsic low-frequency
variability of their extensions- through both a hierarchy of mathematical
models (ranging from low-order models to the primitive equations of
geophysical fluid dynamics) and laboratory experiments with rotating
platforms. I have paid particular attention to the Kuroshio Extension and the
Gulf Stream. The analyses are based on geophysical fluid dynamics and nonlinear
dynamical systems theory, are validated through altimetric data and are
carried out in the general context of climate dynamics. Several studies,
based on novel mathematical techniques, are devoted to analyzing the
predictability of Kuroshio Extension transition processes. - Other model studies are concerned with the Antarctic Circumpolar
Current (and, more in general, the Southern Ocean) and the coastal
circulation in the Southern Tyrrhenian Sea, with particular attention to the
Campania Coastal System and the Gulf of Naples. - Other less recent researches have been concerned with (i) linear
aspects of the wind-driven ocean circulation, including Rossby wave
propagation; (ii) regional and coastal oceanographic modelling; (iii)
nonlinear and dispersive long wave modelling based on the
Kadomtsev–Petviashvili (KP) equation; (iv) nonlinear stability analysis of
geophysical flows. |
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Recent Publications (Pubblicazioni
Recenti): Here are my most relevant publications over the last few years (for a
more complete list see the "Publications" link): New Rubino A, S. Pierini, S.
Rubinetti, M. Gnesotto and D. Zanchettin, 2023: The skeleton of
the Mediterranean Sea. Journal of Marine Science and Engineering, 11, 2098. https://doi.org/10.3390/jmse11112098 New Bevilacqua V, A. Di Marino,
A. Ciaramella, A. A. Biancardi, G. Budillon, P. de Ruggiero, E. Della Volpe,
L. Gifuni, D. Mascolo, S. Pierini and E. Zambianchi,
2023: Computational Intelligence for Marine Litter Recovery. In A.
Esposito et al. (eds.), Applications
of Artificial Intelligence and Neural Systems to Data Science, Smart
Innovation, Systems and Technologies 360 (Springer). https://doi.org/10.1007/978-981-99-3592-5_13 New Gifuni L., P. de Ruggiero, D. Cianelli, S. Pierini
and E. Zambianchi, 2023: Numerical investigation of the
three-dimensional paths of plastic polymers in the Gulf of Naples. Marine Pollution Bulletin, 193, 115259. https://doi.org/10.1016/j.marpolbul.2023.115259 New Pierini S., 2023: The
deterministic excitation paradigm and the late Pleistocene glacial
terminations. Chaos, 33, 033108. https://doi.org/10.1063/5.0127715, Press
Release, Paper
selected as Featured, pdf
of accepted manuscript, EGU-2023
display material. This article is part of the Focus Issue: Theory-informed
and Data-driven Approaches to Advance Climate Sciences New Wang Q. and S. Pierini, 2023: Causal forcing analysis
on the low-frequency variations of eddy kinetic energy in the Kuroshio
Extension region. Journal of Climate, 36, 1-32. https://doi.org/10.1175/JCLI-D-22-0702.1 Gifuni L., P. de Ruggiero, D.
Cianelli, E. Zambianchi and S. Pierini S., 2022: Hydrology and
dynamics in the Gulf of Naples during spring of 2016: In situ and model data. Journal of Marine Science and Engineering, 10,
1776. https://www.mdpi.com/2077-1312/10/11/1776. Pierini S., P. de Ruggiero, M. E.
Negretti, I. Schiller-Weiss, J. Weiffenbach, S. Viboud, T. Valran, H. A.
Dijkstra and J. Sommeria, 2022: Laboratory experiments reveal intrinsic
self-sustained oscillations in ocean relevant rotating fluid flows. Scientific Reports, 12, 1375. https://www.nature.com/articles/s41598-022-05094-1,
Supplementary
Information Pierini S. and M. Ghil, 2021:
Tipping points induced by parameter drift in an excitable ocean model. Scientific Reports, 11, 11126. https://www.nature.com/articles/s41598-021-90138-1,
Supplementary
Information,
Top
100 in Earth Science,
EGU-2021
display material Saviano S., G. Esposito, R. Di
Lemma, P. de Ruggiero, E. Zambianchi, S. Pierini, P. Falco, B. Buonocore, D.
Cianelli and M. Uttieri, 2021: Wind direction data from a coastal HF radar system in the Gulf of
Naples (Central Mediterranean Sea). Remote Sensing, 13, 1333 (in the Special Issue on the Sustained Ocean
Surface Observation Using HF Radar). https://doi.org/10.3390/rs13071333. Fedele G., T. Penduff, S. Pierini, M.
C. Alvarez-Castro, A. Bellucci and S. Masina, 2021: Interannual to decadal
variability of the Kuroshio Extension: Analyzing an ensemble of global
hindcasts from a dynamical system viewpoint. Climate Dynamics, 57, 975-992. https://doi.org/10.1007/s00382-021-05751-7. Fedele G., A. Bellucci,
S. Masina and S. Pierini, 2021: Decadal variability of the Kuroshio Extension: The
response of the jet to increased atmospheric resolution in a coupled
ocean-atmosphere model. Climate Dynamics, 56, 1227–1249. https://doi.org/10.1007/s00382-020-05528-4. De Ruggiero P., G. Esposito, E.
Napolitano, R. Iacono, S. Pierini and E. Zambianchi, 2020: Modelling the marine
circulation of the Campania Coastal System (Tyrrhenian Sea) for the year
2016: Analysis of the dynamics. Journal of Marine Systems, 210, 103388. https://doi.org/10.1016/j.jmarsys.2020.103388. Castagno P., P. De Ruggiero, S.
Pierini, E. Zambianchi, A. De Alteris, M. De Stefano and G. Budillon, 2020: Hydrographic and dynamical
characterization of the Bagnoli-Coroglio Bay (Gulf of Naples, Tyrrhenian
Sea). Chemistry and Ecology, 36, 598-618. https://doi.org/10.1080/02757540.2020.1772244. Wang Q. and
S. Pierini, 2020: On the role of the Kuroshio Extension bimodality in
modulating the surface eddy kinetic energy seasonal variability. Geophysical
Research Letters, 47, e2019GL086308. https://doi.org/10.1029/2019GL086308. Wang Q., M.
Mu and S. Pierini, 2020: The fastest growing initial error in prediction of
the Kuroshio Extension state transition processes and its growth. Climate
Dynamics, 54, 1953-1971. https://doi.org/10.1007/s00382-019-05097-1. Pierini S.,
2020: Statistical
significance of small ensembles of simulations and detection of the internal
climate variability: An excitable ocean system case study. Journal of
Statistical Physics, 179,
1475-1495 (in the Special Issue on the Statistical
Mechanics of Climate). https://doi.org/10.1007/s10955-019-02409-x. PDF Wang Q., S.
Pierini and Y. Tang, 2019: Parameter sensitivity analysis of the short-range
prediction of Kuroshio Extension transition processes using an optimization
approach. Theoretical
and Applied Climatology, 138,
1481-1492. https://doi.org/10.1007/s00704-019-02911-y. PDF Durante S., K. Schroeder, L. Mazzei, S. Pierini, M.
Borghini and S. Sparnocchia, 2019: Permanent thermohaline staircases in the Tyrrhenian Sea. Geophysical
Research Letters, 46,
1562-1570. https://doi.org/10.1029/2018GL081747. PDF De Ruggiero P., E. Napolitano, R. Iacono, S. Pierini and
G. Spezie, 2018: A baroclinic coastal trapped
wave event in the Gulf of Naples (Tyrrhenian Sea). Ocean
Dynamics, 68, 1683-1694. https://doi.org/10.1007/s10236-018-1221-1. PDF Pierini S.,
M. D. Chekroun and M. Ghil, 2018: The onset of chaos in
nonautonomous dissipative dynamical systems: A low-order ocean–model case study. Nonlinear
Processes in Geophysics, 25, 671-692 (in the Special Issue on Numerical
modeling, predictability and data assimilation in weather, ocean and climate) https://www.nonlin-processes-geophys.net/25/671/2018/. PDF Gentile V.,
S. Pierini, P. de Ruggiero and L. Pietranera, 2018: Ocean
modelling and altimeter data reveal the possible occurrence of intrinsic low-frequency
variability of the Kuroshio Extension. Ocean
Modelling, 131, 24-39. https://doi.org/10.1016/j.ocemod.2018.08.006. PDF De Ruggiero
P., D. Zanchettin, M. Bensi, D. Hainbucher, B. Stenni, S.
Pierini and A. Rubino, 2018: Water masses in the Eastern Mediterranean Sea:
An analysis of measured isotopic oxygen. Pure and
Applied Geophysics, 175,
4047-4064. https://doi.org/10.1007/s00024-018-1850-9. PDF Wang Q., Y.
Tang, S. Pierini and M. Mu, 2017: Effects of singular vector-type initial errors
on the short-range prediction of Kuroshio Extension transition
processes. Journal of
Climate, 30, 5961-5983. https://doi.org/10.1175/JCLI-D-16-0305.1. PDF Zhang X.,
M. Mu, Q. Wang and S. Pierini, 2017: Optimal precursors triggering the Kuroshio
Extension state transition obtained by the Conditional Nonlinear Optimal
Perturbation approach. Advances in
Atmospheric Sciences, 34, 685–699. https://doi.org/10.1007/s00376-017-6263-7. PDF De Ruggiero
P., E. Napolitano, R. Iacono and S. Pierini, 2016: A
high-resolution modelling study of the circulation along the Campania coastal
system, with a special focus on the Gulf of Naples. Continental
Shelf Research, 122, 85-101. https://doi.org/10.1016/j.csr.2016.03.026. PDF Pierini S.,
M. Ghil and M. D. Chekroun, 2016: Exploring the pullback attractors of a low-order
quasigeostrophic ocean model: the deterministic case. Journal of
Climate, 29,
4185-4202. https://doi.org/10.1175/JCLI-D-15-0848.1. PDF Pierini S., 2015:
A comparative analysis of Kuroshio Extension indices from a modeling
perspective. Journal of
Climate, 28,
5873-5881. https://doi.org/10.1175/JCLI-D-15-0023.1. PDF Pierini S., 2014:
Ensemble simulations and pullback attractors of a periodically forced
double-gyre system. Journal of
Physical Oceanography, 44, 3245-3254. https://doi.org/10.1175/JPO-D-14-0117.1. PDF Pierini S.,
H. A. Dijkstra and M. Mu, 2014: Intrinsic low-frequency variability and
predictability of the Kuroshio Current and of its extension. Advances in
Oceanography and Limnology, 5, 79-122. https://doi.org/10.1080/19475721.2014.962091. PDF Pierini
S., 2014: Kuroshio Extension bimodality and the North Pacific
Oscillation: a case of intrinsic variability paced by external forcing. Journal of
Climate, 27,
448-454. https://doi.org/10.1175/JCLI-D-13-00306.1. PDF Sgubin G.,
S. Pierini and H. A. Dijkstra, 2014: Intrinsic variability of the Antarctic
Circumpolar Current System: low- and high-frequency fluctuations of the
Argentine Basin flow. Ocean
Science, 10,
201-2013. https://doi.org/10.5194/os-10-201-2014. PDF Montuori A.,
P. de Ruggiero, M. Migliaccio, S. Pierini and G. Spezie, 2013:
X-band COSMO-SkyMed wind field retrieval, with application to coastal
circulation modeling. Ocean
Science, 9,
121-132. https://doi.org/10.5194/os-9-121-2013. PDF Quattrocchi G.,
S. Pierini and H. A. Dijkstra, 2012: Intrinsic low-frequency variability of the Gulf
Stream. Nonlinear
Processes in Geophysics, 19, 155-164. https://doi.org/10.5194/npg-19-155-2012. PDF Pierini S., 2012:
Stochastic tipping points in climate dynamics. Physical
Review E, 85,
027101. https://doi.org/10.1103/PhysRevE.85.027101. PDF Kramer W.,
H. A. Dijkstra, S. Pierini and P. J. Van Leeuwen, 2012:
Measuring the impact of observations on the predictability of the Kuroshio
Extension in a shallow-water model. Journal of
Physical Oceanography, 42, 3-17. https://doi.org/10.1175/JPO-D-11-014.1. PDF Pierini S.,
P. Falco, G. Zambardino, T. A. McClimans and I. Ellingsen, 2011: A
laboratory study of nonlinear western boundary currents, with application to
the Gulf Stream separation due to inertial overshooting. Journal of
Physical Oceanography, 41, 2063-2079. https://doi.org/10.1175/2011JPO4514.1. PDF, Video
clip Pierini S., 2011: Low-frequency
variability, coherence resonance and phase selection in a low-order model of
the wind-driven ocean circulation. Journal of
Physical Oceanography, 41, 1585-1604. https://doi.org/10.1175/JPO-D-10-05018.1. PDF Pierini S., 2010:
Coherence resonance in a double-gyre model of the Kuroshio Extension. Journal of
Physical Oceanography, 40, 238-248. https://doi.org/10.1175/2009JPO4229.1. PDF Pierini S.
and H. A. Dijkstra, 2009: Low-frequency variability of the Kuroshio
Extension. Nonlinear
Processes in Geophysics, 16, 665-675 (in the Special Issue on Nonlinear
processes in oceanic and atmospheric flows). https://www.nonlin-processes-geophys.net/16/665/2009/. PDF Pierini S.,
H. A. Dijkstra and A. Riccio, 2009: A nonlinear theory of
the Kuroshio Extension bimodality. Journal of
Physical Oceanography, 39, 2212-2229. https://doi.org/10.1175/2009JPO4181.1. PDF Pierini S., 2008:
On the crucial role of basin geometry in double-gyre models of the Kuroshio
Extension. Journal of
Physical Oceanography, 38, 1327-1333. https://doi.org/10.1175/2007JPO3924.1. PDF Pierini S.,
V. Malvestuto, G. Siena, T. A. McClimans and S. M. Løvås, 2008: A
laboratory study of the zonal structure of western boundary currents. Journal of
Physical Oceanography, 38, 1073-1090. https://doi.org/10.1175/2007JPO3706.1. PDF Pierini S., 2007:
Low-frequency variability of the Kuroshio Extension: model studies in the
context of climate dynamics and dynamical systems theory. In: "Science
and Supercomputing in Europe", Report 2007 of the "High Performance Computing - Europa"
Project. ISBN: 978-88-86037-21-1, 516-521. PDF Pierini S., 2006:
A Kuroshio Extension System model study: decadal chaotic self-sustained
oscillations. Journal of Physical
Oceanography, 36, 1605-1625. https://doi.org/10.1175/JPO2931.1. PDF Pierini S., 2006:
Seasonal and interannual variability of the North Pacific Ocean: modeling
results and their validation through altimeter data. In Proceedings of the ESA-CNES Symposium:
"15 Years of Progress in Radar Altimetry". European Space Agency. ISBN/ISSN: 92-9092-925-1/1609-042X,
Vol. SP-614. PDF Pierini, S., 2005: A model study of the spectral
structure of boundary-driven Rossby waves, and related altimetric
implications. Journal of Physical Oceanography, 35, 218-231. https://doi.org/10.1175/JPO-2680.1. PDF |
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