Abstract
There is an evidence of the increasing intensity as well as occurrence frequency of the so-called central Pacific (CP) El Niño events since the 1990s. We examine whether such an increase in the frequency of CP El Niño may be a manifestation of natural climate variability. A control simulation of the Kiel Climate Model, run for 4200 years with the present values of greenhouse gases, exhibit large variations of the occurrence frequency of the CP El Niño versus the eastern Pacific (EP) El Niño. A model simulates to some extent changes in the occurrence ratio of CP and EP El Niño in comparison with the observations. Therefore, we can not exclude the possibility that an increasing of occurrence frequency of CP El Niño during recent decades in the observation could be a part of natural variability in the tropical climate system.
| Original language | English (US) |
|---|---|
| Article number | L02704 |
| Journal | Geophysical Research Letters |
| Volume | 38 |
| Issue number | 2 |
| DOIs | |
| State | Published - 2011 |
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ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geophysics
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Natural variability of the central Pacific El Niño event on multi-centennial timescales. / Yeh, Sang Wook; Kirtman, Benjamin; Kug, Jong Seong; Park, Wonsun; Latif, Mojib.
In: Geophysical Research Letters, Vol. 38, No. 2, L02704, 2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Natural variability of the central Pacific El Niño event on multi-centennial timescales
AU - Yeh, Sang Wook
AU - Kirtman, Benjamin
AU - Kug, Jong Seong
AU - Park, Wonsun
AU - Latif, Mojib
PY - 2011
Y1 - 2011
N2 - There is an evidence of the increasing intensity as well as occurrence frequency of the so-called central Pacific (CP) El Niño events since the 1990s. We examine whether such an increase in the frequency of CP El Niño may be a manifestation of natural climate variability. A control simulation of the Kiel Climate Model, run for 4200 years with the present values of greenhouse gases, exhibit large variations of the occurrence frequency of the CP El Niño versus the eastern Pacific (EP) El Niño. A model simulates to some extent changes in the occurrence ratio of CP and EP El Niño in comparison with the observations. Therefore, we can not exclude the possibility that an increasing of occurrence frequency of CP El Niño during recent decades in the observation could be a part of natural variability in the tropical climate system.
AB - There is an evidence of the increasing intensity as well as occurrence frequency of the so-called central Pacific (CP) El Niño events since the 1990s. We examine whether such an increase in the frequency of CP El Niño may be a manifestation of natural climate variability. A control simulation of the Kiel Climate Model, run for 4200 years with the present values of greenhouse gases, exhibit large variations of the occurrence frequency of the CP El Niño versus the eastern Pacific (EP) El Niño. A model simulates to some extent changes in the occurrence ratio of CP and EP El Niño in comparison with the observations. Therefore, we can not exclude the possibility that an increasing of occurrence frequency of CP El Niño during recent decades in the observation could be a part of natural variability in the tropical climate system.
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UR - http://www.scopus.com/inward/citedby.url?scp=79251553510&partnerID=8YFLogxK
U2 - 10.1029/2010GL045886
DO - 10.1029/2010GL045886
M3 - Article
VL - 38
JO - Geophysical Research Letters
JF - Geophysical Research Letters
SN - 0094-8276
IS - 2
M1 - L02704
ER -