scholarly journals Characteristics of the convergence zone at the eastern edge of the Pacific warm pool

2004 ◽  
Vol 31 (11) ◽  
pp. n/a-n/a ◽  
Author(s):  
Christophe Maes ◽  
Joël Picaut ◽  
Yoshifumi Kuroda ◽  
Kentaro Ando
Keyword(s):  
Warm Pool ◽  
Convergence Zone ◽  
The Pacific ◽  
Pacific Warm Pool ◽  
Eastern Edge

scholarly journals Human-caused Indo-Pacific warm pool expansion

2016 ◽  
Vol 2 (7) ◽  
pp. e1501719 ◽  
Author(s):  
Evan Weller ◽  
Seung-Ki Min ◽  
Wenju Cai ◽  
Francis W. Zwiers ◽  
Yeon-Hee Kim ◽  
...  
Keyword(s):  
Climate Model ◽  
Hydrological Cycle ◽  
Heat Content ◽  
Warm Pool ◽  
Small Island ◽  
Past Century ◽  
The Pacific ◽  
Pacific Warm Pool ◽  
Basin Scale ◽  
Climate Model Simulations

The Indo-Pacific warm pool (IPWP) has warmed and grown substantially during the past century. The IPWP is Earth’s largest region of warm sea surface temperatures (SSTs), has the highest rainfall, and is fundamental to global atmospheric circulation and hydrological cycle. The region has also experienced the world’s highest rates of sea-level rise in recent decades, indicating large increases in ocean heat content and leading to substantial impacts on small island states in the region. Previous studies have considered mechanisms for the basin-scale ocean warming, but not the causes of the observed IPWP expansion, where expansion in the Indian Ocean has far exceeded that in the Pacific Ocean. We identify human and natural contributions to the observed IPWP changes since the 1950s by comparing observations with climate model simulations using an optimal fingerprinting technique. Greenhouse gas forcing is found to be the dominant cause of the observed increases in IPWP intensity and size, whereas natural fluctuations associated with the Pacific Decadal Oscillation have played a smaller yet significant role. Further, we show that the shape and impact of human-induced IPWP growth could be asymmetric between the Indian and Pacific basins, the causes of which remain uncertain. Human-induced changes in the IPWP have important implications for understanding and projecting related changes in monsoonal rainfall, and frequency or intensity of tropical storms, which have profound socioeconomic consequences.

A 12-Million-Year Temperature History of the Tropical Pacific Ocean

Science ◽  
2014 ◽  
Vol 344 (6179) ◽  
pp. 84-87 ◽  
Author(s):  
Yi Ge Zhang ◽  
Mark Pagani ◽  
Zhonghui Liu
Keyword(s):  
El Niño ◽  
El Nino ◽  
Warm Pool ◽  
Sea Surface ◽  
Temperature History ◽  
Seawater Chemistry ◽  
The Pacific ◽  
Pacific Warm Pool ◽  
History Of ◽  
The Tropical Pacific

The appearance of permanent El Niño–like conditions prior to 3 million years ago is founded on sea-surface temperature (SST) reconstructions that show invariant Pacific warm pool temperatures and negligible equatorial zonal temperature gradients. However, only a few SST records are available, and these are potentially compromised by changes in seawater chemistry, diagenesis, and calibration limitations. For this study, we establish new biomarker-SST records and show that the Pacific warm pool was ~4°C warmer 12 million years ago. Both the warm pool and cold tongue slowly cooled toward modern conditions while maintaining a zonal temperature gradient of ~3°C in the late Miocene, which increased during the Plio-Pleistocene. Our results contrast with previous temperature reconstructions that support the supposition of a permanent El Niño–like state.

Intraseasonal Variability of the Zonal-Mean Tropical Tropopause Height

2007 ◽  
Vol 64 (7) ◽  
pp. 2695-2706 ◽  
Author(s):  
Seok-Woo Son ◽  
Sukyoung Lee
Keyword(s):  
Large Scale ◽  
Intraseasonal Variability ◽  
Warm Pool ◽  
Temperature Fields ◽  
Convective Heating ◽  
Tropopause Height ◽  
Tropical Tropopause ◽  
The Pacific ◽  
Pacific Warm Pool ◽  
Tropical Troposphere

Abstract Intraseasonal variability of the zonal-mean tropical tropopause height is shown to be modulated by localized tropical convection. Most of this convective activity is identified as being part of the Madden–Julian oscillation. While the convection is highly localized over the Pacific warm pool, a large-scale circulation response to the convective heating rapidly warms most of the tropical troposphere and cools most of the lowest few kilometers of the tropical stratosphere. These changes in temperature fields raise the tropical tropopause at most longitudes within 10 days of the convective heating maximum.

Geochemistry of coral from Papua New Guinea as a proxy for ENSO ocean–atmosphere interactions in the Pacific Warm Pool

2004 ◽  
Vol 24 (19) ◽  
pp. 2343-2356 ◽  
Author(s):  
Linda K. Ayliffe ◽  
Michael I. Bird ◽  
Michael K. Gagan ◽  
Peter J. Isdale ◽  
Heather Scott-Gagan ◽  
...  
Keyword(s):  
Papua New Guinea ◽  
New Guinea ◽  
Warm Pool ◽  
The Pacific ◽  
Pacific Warm Pool ◽  
Ocean Atmosphere

scholarly journals The Influence of the 1998 El Niño upon Cloud-Radiative Forcing over the Pacific Warm Pool

2001 ◽  
Vol 14 (9) ◽  
pp. 2129-2137 ◽  
Author(s):  
Robert D. Cess ◽  
Minghua Zhang ◽  
Bruce A. Wielicki ◽  
David F. Young ◽  
Xue-Long Zhou ◽  
...  
Keyword(s):  
El Niño ◽  
Radiative Forcing ◽  
El Nino ◽  
Warm Pool ◽  
Cloud Radiative Forcing ◽  
The Pacific ◽  
Pacific Warm Pool
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