The Role of Extratropical Pacific in Crossing ENSO Spring Predictability Barrier
نویسندگان
چکیده
This paper investigates the impacts of extratropical Pacific on El Niño-Southern Oscillation (ENSO) spring predictability barrier (SPB). Using an empirical dynamical model – Linear Inverse Model (LIM), we find that dynamics northern and southern can significantly equally weaken Eastern (EP)-ENSO SPB, while North is more important for weakening Central (CP)-ENSO SPB. The evolution optimum initial structures illustrates different roles in crossing EP CP ENSO SPBs demonstrates decisive role South condition plays diversity. Additionally, greatly influences forecast skill Niño during tropical may be SPB La Niña.
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ژورنال
عنوان ژورنال: Geophysical Research Letters
سال: 2022
ISSN: ['1944-8007', '0094-8276']
DOI: https://doi.org/10.1029/2022gl099488