scholarly journals Estimation of Basin-scale turbulence distribution in the North Pacific Ocean using CTD-attached thermistor measurements

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yasutaka Goto ◽  
Ichiro Yasuda ◽  
Maki Nagasawa ◽  
Shinya Kouketsu ◽  
Toshiya Nakano
Keyword(s):  
North Pacific ◽  
Dissipation Rate ◽  
North Pacific Ocean ◽  
Fast Response ◽  
Ocean Model ◽  
Turbulent Dissipation ◽  
The North ◽  
Basin Scale ◽  
Scale Turbulence ◽  
The North Pacific

AbstractA recently developed technique for microstructure measurement based on a fast-response thermistor mounted on a conductivity-temperature-depth equipment was used on eight cruises to obtain 438 profiles. Thus, the spatial distribution of turbulent dissipation rates across the North Pacific sea floor was illustrated, and was found out to be related to results obtained using tide-induced energy dissipation and density stratification. The observed turbulence distribution was then compared with the dissipation rate based on a high-resolution numerical ocean model with tidal forcing, and discrepancies and similarities between the observed and modelled distributions were described. The turbulence intensity from observation showed that the numerical model was overestimated, and could be refined by comparing it with the observed basin-scale dissipation rate. This new method makes turbulence observations much easier and wider, significantly improving our knowledge regarding ocean mixing.

scholarly journals Physical Forcing Controls the Basin‐Scale Occurrence of Nitrogen‐Fixing Organisms in the North Pacific Ocean

2020 ◽  
Vol 34 (9) ◽  
Author(s):  
Shunyan Cheung ◽  
Risa Nitanai ◽  
Chihiro Tsurumoto ◽  
Hisashi Endo ◽  
Shin‐ichiro Nakaoka ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Nitrogen Fixing ◽  
Physical Forcing ◽  
The North ◽  
Basin Scale ◽  
The North Pacific

scholarly journals Distinct basin-scale-distributions of aluminum, manganese, cobalt, and lead in the North Pacific Ocean

2019 ◽  
Vol 254 ◽  
pp. 102-121 ◽  
Author(s):  
Linjie Zheng ◽  
Tomoharu Minami ◽  
Wataru Konagaya ◽  
Cheuk-Yin Chan ◽  
Makoto Tsujisaka ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
North Pacific ◽  
North Pacific Ocean ◽  
The North ◽  
Basin Scale ◽  
The North Pacific

Analysis of multipath acoustic field variability and coherence in the finale of broadband basin-scale transmissions in the North Pacific Ocean

2005 ◽  
Vol 117 (3) ◽  
pp. 1538-1564 ◽  
Author(s):  
John A. Colosi ◽  
Arthur B. Baggeroer ◽  
Bruce D. Cornuelle ◽  
Matthew A. Dzieciuch ◽  
Walter H. Munk ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Acoustic Field ◽  
North Pacific ◽  
North Pacific Ocean ◽  
The North ◽  
Basin Scale ◽  
Field Variability ◽  
The North Pacific

scholarly journals Transhemispheric ecosystem disservices of pink salmon in a Pacific Ocean macrosystem

2018 ◽  
Vol 115 (22) ◽  
pp. E5038-E5045 ◽  
Author(s):  
Alan M. Springer ◽  
Gus B. van Vliet ◽  
Natalie Bool ◽  
Mike Crowley ◽  
Peter Fullagar ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Pink Salmon ◽  
Oncorhynchus Gorbuscha ◽  
Geographic Scale ◽  
The North ◽  
Basin Scale ◽  
Ecosystem Disservices ◽  
The North Pacific

Pink salmon (Oncorhynchus gorbuscha) in the North Pacific Ocean have flourished since the 1970s, with growth in wild populations augmented by rising hatchery production. As their abundance has grown, so too has evidence that they are having important effects on other species and on ocean ecosystems. In alternating years of high abundance, they can initiate pelagic trophic cascades in the northern North Pacific Ocean and Bering Sea and depress the availability of common prey resources of other species of salmon, resident seabirds, and other pelagic species. We now propose that the geographic scale of ecosystem disservices of pink salmon is far greater due to a 15,000-kilometer transhemispheric teleconnection in a Pacific Ocean macrosystem maintained by short-tailed shearwaters (Ardenna tenuirostris), seabirds that migrate annually between their nesting grounds in the South Pacific Ocean and wintering grounds in the North Pacific Ocean. Over this century, the frequency and magnitude of mass mortalities of shearwaters as they arrive in Australia, and their abundance and productivity, have been related to the abundance of pink salmon. This has influenced human social, economic, and cultural traditions there, and has the potential to alter the role shearwaters play in insular terrestrial ecology. We can view the unique biennial pulses of pink salmon as a large, replicated, natural experiment that offers basin-scale opportunities to better learn how these ecosystems function. By exploring trophic interaction chains driven by pink salmon, we may achieve a deeper conservation conscientiousness for these northern open oceans.

scholarly journals Multi-scale modeling of the North Pacific Ocean: Assessment and analysis of simulated basin-scale variability (1996–2003)

2005 ◽  
Vol 110 (C11) ◽  
Author(s):  
Enrique N. Curchitser ◽  
Dale B. Haidvogel ◽  
Albert J. Hermann ◽  
Elizabeth L. Dobbins ◽  
Thomas M. Powell ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Multi Scale ◽  
The North ◽  
Scale Modeling ◽  
Basin Scale ◽  
Multi Scale Modeling ◽  
The North Pacific
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