scholarly journals In the Eastern Pacific Ocean, the "Blob" Overshadows El Niño

Eos ◽  
2016 ◽  
Vol 97 ◽  
Author(s):  
Sarah Stanley
Keyword(s):  
Pacific Ocean ◽  
West Coast ◽  
El Niño ◽  
El Nino ◽  
Ocean Modeling ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Underwater Gliders

Underwater gliders and ocean modeling reveal unexpectedly weak El Niño effects on a major West Coast current.

scholarly journals Contrasting Impacts of Three Extreme El Niños on Double ITCZs over the Eastern Pacific Ocean

Atmosphere ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 424
Author(s):  
Yinlan Chen ◽  
Li Yan ◽  
Gen Li ◽  
Jianjun Xu ◽  
Jingchao Long ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
El Niño ◽  
El Nino ◽  
Intertropical Convergence Zone ◽  
Sea Surface ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Symmetric Structure ◽  
Double Itcz ◽  
Sst Warming

In the recent four decades, there were three record-breaking El Niño events: 1982/1983, 1997/1998, and 2015/2016 events. A double intertropical convergence zone (ITCZ) pattern distinctively emerges over the eastern Pacific Ocean during boreal spring. Based on reanalysis (ERA-Interim) during 1979–2018, this study examines how these three extreme El Niños modulate such double ITCZs. The 1982/1983 and 1997/1998 El Niños moved both northern and southern ITCZs equatorward to form an individual and broad equatorial ITCZ. In contrast, the regulation of 2015/2016 El Niño was unique with a strengthened southern ITCZ to form a symmetric double-ITCZ. The above differences can be attributed to the different meridional structures of sea surface temperatures (SSTs). For the 1982/1983 and 1997/1998 El Niños, there was a meridionally symmetric structure of SST warming with a maximum at the equator. While for 2015/2016 El Niño, there was a meridionally symmetric structure of SST warming with a minimum at the equator.

Eastern Pacific Ocean circulation near the onset of the 1982–1983 El Niño

1986 ◽  
Vol 91 (C7) ◽  
pp. 8428 ◽  
Author(s):  
L. J. Mangum ◽  
S. P. Hayes ◽  
J. M. Toole
Keyword(s):  
Pacific Ocean ◽  
Ocean Circulation ◽  
El Niño ◽  
El Nino ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean

Development of habitat prediction models to reduce by-catch of sailfish (Istiophorus platypterus) within the purse-seine fishery in the eastern Pacific Ocean

2015 ◽  
Vol 66 (7) ◽  
pp. 644 ◽  
Author(s):  
Raul O. Martinez-Rincon ◽  
Sofia Ortega-Garcia ◽  
Juan G. Vaca-Rodriguez ◽  
Shane P. Griffiths
Keyword(s):  
Pacific Ocean ◽  
El Niño ◽  
Coastal Waters ◽  
El Nino ◽  
Sea Surface ◽  
Eastern Pacific ◽  
Purse Seine ◽  
Eastern Pacific Ocean ◽  
Istiophorus Platypterus ◽  
By Catch

Sailfish (Istiophorus platypterus) is an important apex predator in neritic and oceanic pelagic ecosystems. The species is also a primary target of important catch-and-release sport fisheries that the support local economies of developing countries. However, commercial purse-seine fisheries that target tuna in the eastern Pacific Ocean (EPO) incidentally catch and discard large numbers of sailfish. Sailfish by-catch data recorded by scientific observers in the Mexican tuna purse-seine fleet in the EPO from 1998 to 2007 was used in generalised additive models (GAMs) to predict environmental and spatial preferences of sailfish. GAM predicted the highest sailfish catches to occur in coastal waters during El Niño events during late autumn and winter, with sea surface temperatures >26°C, with negative values of deviation in sea surface height (<–10cm), and low chlorophyll-a (<0.25mgm–3). GAM predicted that the catch probability for sailfish increased 1.8-fold during El Niño events in coastal waters and 1.5-fold under La Niña. However, the spatial distribution of sailfish remained largely unchanged during El Niño and La Niña events. Our models may be an additional fisheries management tool that may be used to support temporary spatial-temporal throughout the fishing season to reduce sailfish by-catch in the EPO.

scholarly journals Shift in Pacific Sea Level Trends Will Affect the West Coast

Eos ◽  
2016 ◽  
Vol 97 ◽  
Author(s):  
Terri Cook
Keyword(s):  
Pacific Ocean ◽  
Sea Level ◽  
West Coast ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
The West ◽  
Sea Levels ◽  
The Past

The first study on the shift toward higher sea levels in the eastern Pacific Ocean over the past 5 years indicates it will continue, leading to much higher seas on the western coasts of the Americas.

Rookery contributions, movements and conservation needs of hawksbill turtles at foraging grounds in the eastern Pacific Ocean

2018 ◽  
Vol 586 ◽  
pp. 203-216 ◽  
Author(s):  
AR Gaos ◽  
RL Lewison ◽  
MP Jensen ◽  
MJ Liles ◽  
A Henriquez ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Eastern Pacific ◽  
Eastern Pacific Ocean ◽  
Hawksbill Turtles
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