Equatorial Kelvin and Rossby waves evidenced in the Pacific Ocean through Geosat sea level and surface current anomalies

1991 ◽  
Vol 96 (S01) ◽  
pp. 3249 ◽  
Author(s):  
Thierry Delcroix ◽  
Joël Picaut ◽  
Gérard Eldin
Keyword(s):  
Pacific Ocean ◽  
Sea Level ◽  
Rossby Waves ◽  
Surface Current ◽  
The Pacific ◽  
The Pacific Ocean

Surface Tidal Currents in Juan de Fuca Strait

1954 ◽  
Vol 11 (1) ◽  
pp. 14-31 ◽  
Author(s):  
R. H. Herlinveaux
Keyword(s):  
Pacific Ocean ◽  
Sea Level ◽  
Surface Current ◽  
Linear Functions ◽  
Strait Of Georgia ◽  
The Pacific ◽  
Juan De Fuca ◽  
The Pacific Ocean ◽  
The Difference ◽  
Juan De Fuca Strait

Surface-current measurements were made at half-hour intervals throughout thirty-hour periods at three positions in Juan de Fuca Strait. These were repeated during spring and neap ranges of the tide in spring, summer and late autumn during 1952. The currents are linear functions of the difference of sea level between the Pacific Ocean and the Strait of Georgia. A rule is given for predicting the currents from data in the Tide Tables.

scholarly journals Barotropic Rossby Waves Radiating from Tropical Instability Waves in the Pacific Ocean

2011 ◽  
Vol 41 (6) ◽  
pp. 1160-1181 ◽  
Author(s):  
J. Thomas Farrar
Keyword(s):  
Dispersion Relation ◽  
Pacific Ocean ◽  
Sea Level ◽  
Rossby Waves ◽  
North Pacific Subtropical Gyre ◽  
Sea Level Variability ◽  
Instability Waves ◽  
Tropical Instability Waves ◽  
The Pacific ◽  
The Pacific Ocean

Abstract Tropical instability waves are triggered by instabilities of the equatorial current systems, and their sea level signal, with peak amplitude near 5°N, is one of the most prominent features of the dynamic topography of the tropics. Cross-spectral analysis of satellite altimetry observations shows that there is sea level variability in the Pacific Ocean as far north as Hawaii (i.e., 20°N) that is coherent with the sea level variability near 5°N associated with tropical instability waves. Within the uncertainty of the analysis, this off-equatorial variability obeys the dispersion relation for nondivergent, barotropic Rossby waves over a fairly broad range of periods (26–38 days) and zonal wavelengths (9°–23° of longitude) that are associated with tropical instability waves. The dispersion relation and observed wave properties further suggest that the waves are carrying energy away from the instabilities toward the North Pacific subtropical gyre, which, together with the observed coherence of the sea level signal of the barotropic waves with that of the tropical instability waves, suggests that the barotropic Rossby waves are being radiated from the tropical instability waves. The poleward transport of kinetic energy and westward momentum by these barotropic Rossby waves may influence the circulation in the subtropics.

scholarly journals Decadal Sea Level Variability in the Pacific Ocean: Origins and Climate Mode Contributions

2019 ◽  
Vol 36 (4) ◽  
pp. 689-698 ◽  
Author(s):  
Lingsheng Meng ◽  
Wei Zhuang ◽  
Weiwei Zhang ◽  
Angela Ditri ◽  
Xiao-Hai Yan
Keyword(s):  
Pacific Ocean ◽  
Sea Level ◽  
Time Scales ◽  
Wind Stress ◽  
Tropical Pacific ◽  
Central Basin ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Sea Level Variations ◽  
The Tropical Pacific

AbstractSea level changes within wide temporal–spatial scales have great influence on oceanic and atmospheric circulations. Efforts have been made to identify long-term sea level trend and regional sea level variations on different time scales. A nonuniform sea level rise in the tropical Pacific and the strengthening of the easterly trade winds from 1993 to 2012 have been widely reported. It is well documented that sea level in the tropical Pacific is associated with the typical climate modes. However, sea level change on interannual and decadal time scales still requires more research. In this study, the Pacific sea level anomaly (SLA) was decomposed into interannual and decadal time scales via an ensemble empirical mode decomposition (EEMD) method. The temporal–spatial features of the SLA variability in the Pacific were examined and were closely associated with climate variability modes. Moreover, decadal SLA oscillations in the Pacific Ocean were identified during 1993–2016, with the phase reversals around 2000, 2004, and 2012. In the tropical Pacific, large sea level variations in the western and central basin were a result of changes in the equatorial wind stress. Moreover, coherent decadal changes could also be seen in wind stress, sea surface temperature (SST), subtropical cells (STCs), and thermocline depth. Our work provided a new way to illustrate the interannual and decadal sea level variations in the Pacific Ocean and suggested a coupled atmosphere–ocean variability on a decadal time scale in the tropical region with two cycles from 1993 to 2016.

scholarly journals Pacific Sea Levels Rising Very Slowly and Not Accelerating

2019 ◽  
Vol 38 (1) ◽  
pp. 179-184 ◽  
Author(s):  
Albert Parker ◽  
Clifford Ollier
Keyword(s):  
Pacific Ocean ◽  
Sea Level ◽  
Relative Rate ◽  
Tide Gauges ◽  
Sea Levels ◽  
The Past ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Long Term Trend

AbstractOver the past decades, detailed surveys of the Pacific Ocean atoll islands show no sign of drowning because of accelerated sea-level rise. Data reveal that no atoll lost land area, 88.6% of islands were either stable or increased in area, and only 11.4% of islands contracted. The Pacific Atolls are not being inundated because the sea level is rising much less than was thought. The average relative rate of rise and acceleration of the 29 long-term-trend (LTT) tide gauges of Japan, Oceania and West Coast of North America, are both negative, −0.02139 mm yr−1and −0.00007 mm yr−2respectively. Since the start of the 1900s, the sea levels of the Pacific Ocean have been remarkably stable.

scholarly journals Is anthropogenic sea level fingerprint already detectable in the Pacific Ocean?

2015 ◽  
Vol 10 (8) ◽  
pp. 084024 ◽  
Author(s):  
H Palanisamy ◽  
B Meyssignac ◽  
A Cazenave ◽  
T Delcroix
Keyword(s):  
Pacific Ocean ◽  
Sea Level ◽  
The Pacific ◽  
The Pacific Ocean

Uncovering an anthropogenic sea-level rise signal in the Pacific Ocean

2014 ◽  
Vol 4 (9) ◽  
pp. 782-785 ◽  
Author(s):  
B. D. Hamlington ◽  
M. W. Strassburg ◽  
R. R. Leben ◽  
W. Han ◽  
R. S. Nerem ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Sea Level Rise ◽  
Sea Level ◽  
The Pacific ◽  
The Pacific Ocean

scholarly journals Genome Sequence of the Deep-Sea BacteriumIdiomarina abyssalisKMM 227T

2015 ◽  
Vol 3 (5) ◽  
Author(s):  
Bruce A. Rheaume ◽  
Scott Mithoefer ◽  
Kyle S. MacLea
Keyword(s):  
Pacific Ocean ◽  
Sea Level ◽  
Genome Sequence ◽  
Deep Sea ◽  
Draft Genome ◽  
Draft Genome Sequence ◽  
Coding Sequences ◽  
The Pacific ◽  
The Pacific Ocean

Idiomarina abyssalisKMM 227Tis an aerobic flagellar gammaproteobacterium found at a depth of 4,000 to 5,000 m below sea level in the Pacific Ocean. This paper presents a draft genome sequence forI. abyssalisKMM 227T, with a predicted composition of 2,684,812 bp (47.15% G+C content) and 2,611 genes, of which 2,508 were predicted coding sequences.

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