scholarly journals A New Biostratigraphic Interpretation of the Sedimentary Record Recovered at Site 462, Leg 61, Nauru Basin, Western Equatorial Pacific

1986 ◽  
Author(s):  
I. Premoli Silva
Keyword(s):  
Equatorial Pacific ◽  
Sedimentary Record ◽  
Western Equatorial Pacific

Estimation of the Stability of Acoustic Multipath in Long-Range Propagation at the Western Equatorial Pacific

1999 ◽  
Vol 38 (Part 1, No. 5B) ◽  
pp. 3366-3369 ◽  
Author(s):  
Hiroyuki Hachiya ◽  
Toshiaki Nakamura ◽  
Iwao Nakano
Keyword(s):  
Long Range ◽  
Equatorial Pacific ◽  
Western Equatorial Pacific ◽  
The Stability

scholarly journals Air-sea exchange of CO2 in the central and western equatorial Pacific in 1990

Tellus B ◽  
1995 ◽  
Vol 47 (4) ◽  
pp. 447-460 ◽  
Author(s):  
Masao Ishii ◽  
Hisayuki Yoshikawa Inoue
Keyword(s):  
Equatorial Pacific ◽  
Western Equatorial Pacific

Air-sea exchange of CO2 in the central and western equatorial Pacific in 1990

Tellus B ◽  
1995 ◽  
Vol 47 (4) ◽  
pp. 447-460 ◽  
Author(s):  
MASAO ISHII ◽  
HISAYUKI YOSHIKAWA INOUE
Keyword(s):  
Equatorial Pacific ◽  
Western Equatorial Pacific

scholarly journals One plausible reason for the change in ENSO characteristics in the 2000s

2013 ◽  
Vol 10 (4) ◽  
pp. 951-984
Author(s):  
V. N. Stepanov
Keyword(s):  
Southern Ocean ◽  
Equatorial Pacific ◽  
Warm Water ◽  
Water Volume ◽  
Atmospheric Conditions ◽  
Enso Events ◽  
Wind Variability ◽  
Western Equatorial Pacific ◽  
Warm Water Volume ◽  
The Tropics

Abstract. It is well known that El Niño Southern Oscillation (ENSO) causes floods, droughts and the collapse of fisheries, therefore forecasting of ENSO is an important task in climate researches. Variations in the equatorial warm water volume of the tropical Pacific and wind variability in the western equatorial Pacific has been considered to be a good ENSO predictor. However, in the 2000s, the interrelationship between these two characteristics and ENSO onsets became weak. This article attempts to find some plausible explanation for this. The results presented here demonstrate a possible link between the variability of atmospheric conditions over the Southern Ocean and their impact on the ocean circulation leading to the amplifying/triggering of ENSO events. It is shown that the variability of the atmospheric conditions upstream of Drake Passage can strongly influence ENSO events. The interrelationship between ENSO and variability in the equatorial warm water volume of the equatorial Pacific, together with wind variability in the western equatorial Pacific has recently weakened. It can be explained by the fact that the process occurred in the Southern Ocean recently became a major contributor amplifying ENSO events (in comparison with the processes of interaction between the atmosphere and the ocean in the tropics of the Pacific). Likely it is due to a warmer ocean state observed from the end of the 1990s that led to smaller atmospheric variability in the tropics and insignificant their changes in the Southern Ocean.

Late Neogene–Quaternary Planktic Foraminiferal Biostratigraphy and Biochronology from ODP Site 807A, Ontong Java Plateau, Western Equatorial Pacific

2020 ◽  
Vol 50 (2) ◽  
pp. 111-127
Author(s):  
Tushar Kaushik ◽  
Ashutosh Kumar Singh ◽  
Devesh Kumar Sinha
Keyword(s):  
Equatorial Pacific ◽  
Ocean Drilling Program ◽  
Ontong Java Plateau ◽  
Faunal Turnover ◽  
Ocean Drilling ◽  
Late Neogene ◽  
Western Equatorial Pacific ◽  
Globorotalia Truncatulinoides ◽  
Oceanographic Conditions ◽  
Foraminiferal Biostratigraphy

ABSTRACT A biostratigraphic and biochronological study from the late Neogene–Quaternary section of Ocean Drilling Program (ODP) Site 807A, located on the Ontong Java Plateau, western equatorial Pacific, revealed 50 planktic foraminiferal events, enabling the identification of eight late Neogene–Quaternary biozones, from the Globorotalia plesiotumida Interval Zone to the Globorotalia truncatulinoides Interval Zone. A significant faunal turnover (17 events) from late Pliocene identified in cores 7 and 8, between 70 and 55 meters below seafloor (mbsf), and spanning 0.67 million years (Myr). This noteworthy turnover may be the result of a shift in oceanographic conditions pertaining to the closure of the Indo–Pacific Seaway, followed by the Northern Hemisphere Glaciation. This study provides a high resolution biostratigraphic and biochronological framework for ODP Site 807A that will aid in correlation and timing the various paleoceanographic changes over the last 6 million years in the western equatorial Pacific.

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