Some characteristic features of seismic energy release (in time) on the south-western margin of the Pacific Ocean

1970 ◽  
Vol 13 (2) ◽  
pp. 400-407
Author(s):  
G.P. Tamrazyan
Keyword(s):  
Pacific Ocean ◽  
Energy Release ◽  
Seismic Energy ◽  
The South ◽  
Western Margin ◽  
Seismic Energy Release ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Characteristic Features

IV.—Geological Notes on the Peninsula of Nicoya, Costa Rica

1912 ◽  
Vol 9 (6) ◽  
pp. 258-265 ◽  
Author(s):  
James Romanes
Keyword(s):  
Costa Rica ◽  
Pacific Ocean ◽  
The South ◽  
North West ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Gulf Of Nicoya

During a visit to Costa llica in the year 1910 I was able to spend about ten days in the comparatively little-known peninsula of Nicoya. The trend of the peninsula is north-west to south-east, and it is separated from the mainland by the Gulf of Nicoya, a shallow arm of the Pacific Ocean, which opens to the sea on the south-east.

scholarly journals Meridional Extent and Interannual Variability of the Pacific Ocean Tropical–Subtropical Warm Water Exchange

2005 ◽  
Vol 35 (3) ◽  
pp. 323-335 ◽  
Author(s):  
Christopher S. Meinen
Keyword(s):  
Pacific Ocean ◽  
El Niño ◽  
El Nino ◽  
Warm Water ◽  
Height Anomaly ◽  
The South ◽  
El Niño Event ◽  
The Pacific ◽  
The Pacific Ocean ◽  
The Tropics

Abstract Altimetric observations of sea surface height anomaly (SSHA) from the TOPEX/Poseidon and ERS satellites, hydrography, and the ECMWF and Florida State University wind products are used to track warm water (≥20°C) as it is exchanged between the equatorial Pacific Ocean and the higher latitudes during 1993–2003. The large El Niño event of 1997–98 resulted in a significant discharge of warm water toward the higher latitudes within the interior of the Pacific Ocean. The exchange of anomalous warm water volume with the Northern Hemisphere appears to be blocked under the intertropical convergence zone, consistent with most current ideas on the time-mean tropical–subtropical exchange. Little of the warm water discharged northward across 5° and 8°N during the 1997–98 El Niño event could be traced as far as 10°N. To the south, however, these anomalous volumes of warm water were visible at least as far as 20°S, primarily in the longitudes around 130°–160°W. In both hemispheres most of the warm water appeared to flow westward before returning to the Tropics during the recharge phase of the El Niño–La Niña cycle. The buildup of warm water in the Tropics before the 1997–98 El Niño is shown to be fed primarily by warm water drawn from the region in the western Pacific within 5°S–15°N. The exchange cycle between the equatorial band and the higher latitudes north of the equator leads the cycle in the south by 6–8 months. These results are found in all three datasets used herein, hydrography, altimetric observations of SSHA, and Sverdrup transports calculated from multiple wind products, which demonstrates the robustness of the results.

IODP Expedition 378 South Pacific Paleogene Climate: New high-resolution high-latitude Cenozoic Section

2020 ◽  
Author(s):  
Ursula Röhl ◽  
Deborah J Thomas ◽  
Laurel Childress ◽  
Keyword(s):  
Pacific Ocean ◽  
High Latitude ◽  
Global Climate ◽  
South Pacific ◽  
The South ◽  
Red Clay ◽  
South Pacific Ocean ◽  
The Pacific ◽  
The Pacific Ocean ◽  
International Ocean Discovery Program

<p>As the world’s largest ocean, the Pacific Ocean is intricately linked to major changes in the global climate system. International Ocean Discovery Program (IODP) Expedition 378 is designed to recover Paleogene sedimentary sections in the South Pacific to reconstruct key changes in oceanic and atmospheric circulation. These cores will provide an unparalleled opportunity to add crucial new data and geographic coverage to existing reconstructions of Paleogene climate and as part of a major regional slate of expeditions in the Southern Ocean to fill a critical need for high-latitude climate reconstructions. Appropriate high-latitude records are unobtainable in the Northern Hemisphere of the Pacific Ocean.</p><p>The drilling strategy included a transect of sites strategically positioned in the South Pacific to recover Paleogene carbonates buried under red clay sequences at present latitudes of 40°–52°S in 4650 – 5075 meters of water depth. Due to technical issues we no longer will be able to reach the deeper sites. Therefore, the focus of Expedition 378 will be now to obtain a continuous sedimentary record of a previously single hole, rotary-drilled, spot-cored, classic Cenozoic high-latitude DSDP Site 277 and provide a crucial, multiple hole, mostly APC-cored, continuous record of the intermediate-depth Subantarctic South Pacific Ocean from the Latest Cretaceous to late Oligocene.</p>

The South Seas from the Deck of a Steamship

2021 ◽  
Vol 98 (3) ◽  
pp. 78-96
Author(s):  
Diana L. Ahmad
Keyword(s):  
United States ◽  
Pacific Ocean ◽  
San Francisco ◽  
The United States ◽  
The South ◽  
The People ◽  
The Pacific ◽  
Time Zones ◽  
The Pacific Ocean ◽  
The Many

The story of the people who sailed the Pacific Ocean from San Francisco to Hawai‘i, Samoa, and points beyond is well documented, yet historians have neglected the voyages themselves and what the travelers encountered on the five-day to five-week journeys to their destinations. Those who crossed the Pacific recorded their thoughts about the sea creatures they discovered, the birds that followed the ships, and the potential of American expansion to the islands. They gossiped about their shipmates, celebrated the change in time zones, and feared the sharks that swam near the vessels. The voyagers had little else to distract them from the many miles of endless water, so they paid attention to their surroundings: nature, people, and shipboard activities. The adventures on the ships enlivened their travels to the islands of the Pacific and proved to be an opportunity to expand their personal horizons, as well as their hopes for the United States.

IV.—Oceanic ‘Deeps’

1908 ◽  
Vol 5 (1) ◽  
pp. 19-20
Author(s):  
T. Mellard Reade
Keyword(s):  
Pacific Ocean ◽  
Earth Structure ◽  
Sea Bottom ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Characteristic Features ◽  
Probable Origin

One of the most characteristic features of the great oceans is the presence of what have been aptly termed ‘deeps,’ enormous depressions in the ocean bottoms. Having in my “Evolution of Earth Structure” discussed their distribution and probable origin, I was naturally attracted by the notice in Nature of the surveys of the vessel “Edi” and the cable-ship “Stephan” during 1903 and 1905 in the western and south-western parts of the Pacific Ocean. Drs. G. Shott and P. Perlewitz, in a paper recently issued in the Archiv der deutschen Seewarte, taking into consideration previous work by U.S. ship “Hero” and of the German vessel “Planet,” consider that these soundings throw a great deal of new light on the configuration of the sea bottom in those regions. They state that the troughs forming the deeps are usually about 10 miles wide, excepeting the Guam deep, which is as much as 20 across. The most interesting statement to me is that in their opinion the troughs are the result of subsidence occurring on an enormous scale along lines of fracture, and that is probable the disturbances which produced these structures are comparatively recent.

The Wairarapa region

2015 ◽  
Vol 77 ◽  
pp. 15-18
Author(s):  
J. Falloon
Keyword(s):  
Pacific Ocean ◽  
Land Area ◽  
The South ◽  
The West ◽  
Hill Country ◽  
South Eastern ◽  
The North ◽  
The Pacific ◽  
The Pacific Ocean

Wai'ra'rapa - The place Maori called "Land of Glistening Waters". Wairarapa is a region of big skies, wide valleys rolling hill country and rugged coastline. It has a total land area of 8423 square kilometres. The region is named after Lake Wairarapa, which situated at the bottom of the Wairarapa Plain, North of Palliser Bay. Wairarapa is located on the South Eastern Corner of the North Island bounded by the Pacific Ocean in the East, Tararua district in the North and the Tararua Ranges in the west.

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