scholarly journals DMS sea-to-air fluxes and their influence on sulfate aerosols over the Southern Ocean, south-east Indian Ocean and north-west Pacific Ocean

2021 ◽  
Author(s):  
Miming Zhang ◽  
Christa A. Marandino ◽  
Jinpei Yan ◽  
Qi Lin ◽  
Keyhong Park ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
Southern Ocean ◽  
Sulfate Aerosols ◽  
West Pacific ◽  
North West ◽  
East Indian ◽  
West Pacific Ocean ◽  
East Indian Ocean

scholarly journals Nitrogen in Atmospheric Wet Depositions Over the East Indian Ocean and West Pacific Ocean: Spatial Variability, Source Identification, and Potential Influences

2021 ◽  
Vol 7 ◽  
Author(s):  
Shan Jiang ◽  
Jie Jin ◽  
Shuo Jiang ◽  
Ying Wu ◽  
Jianing Wang ◽  
...  
Keyword(s):  
Surface Water ◽  
Pacific Ocean ◽  
Indian Ocean ◽  
Spatial Variability ◽  
Ocean Surface ◽  
N Availability ◽  
West Pacific ◽  
East Indian ◽  
West Pacific Ocean ◽  
East Indian Ocean

Atmospheric deposition is the dominant pathway for the loading of exogenous nitrogen (N) to open ocean. Here, rainwater samples were collected from 31 stations in the equatorial East Indian Ocean (EIO) and West Pacific Ocean (WPO) to explore the spatial variability of N species, potential sources, and related ecological influences. Among two oceans, nitrate (NO3–) and ammonium (NH4+) were the main components in the rainwater N inventory. NO3– concentrations varied from 0.19 to 100.5 μM, whereas NH4+ concentrations ranged from 0.54 to 110.6 μM. Among all stations, low concentrations of NO3– and NH4+ appeared in the remote ocean, whereas high concentrations were observed at the stations near the Malacca Strait and New Guinea, coupled with an enhancement of non-sea salt major ions, e.g., calcium ions (Ca2+) and sulfate (SO42–), revealing the influence from coastal human activities, such as coal and gasoline combustion. In the remote ocean, δ15N–NH4+ ranged from −5.7 to −9.3‰, whereas it dropped to -15.5‰ near coasts. A logarithmic decay between δ15N–NH4+ and NH4+ concentrations in rainwater samples was obtained, suggesting a shift from natural source (seawater emission) in oceanic precipitation events to anthropogenic source (chemical fertilizer volatilization and vehicle exhaust) in coastal rainwaters. δ15N–NO3– in the remote ocean varied between −1.7 and 0.4‰ with low levels found in the WPO, likely related to the ascending air flow driven by the Walker Circulation. In coastal oceans, δ15N–NO3– ranged from 1.5 to 3.5‰. The linkage between δ15N–NO3– and NO3– concentrations varied in two oceans, resulting from difference in biological and fossil fuel combustion contributions. Compared with ocean surface water, N in the rainwater was markedly enriched, suggesting that N from atmospheric wet depositions could rapidly enhance the dissolved N availability in ocean surface water. However, the N redundancy according to the Redfield–Brzezinski ratio (N:Si:P = 16:16:1) in the rainwater might benefit from the growth of N-preference phytoplankton species and microbes. As the first study on N concentrations, sources, and stoichiometry balance in rainwater over the equatorial WPO and EIO, the results could be a support to the global N budget estimation and oceanic primary production modeling.

Meridional and temporal variations of lower-stratospheric gravity-wave activity over Japan, West Pacific ocean and East Indian ocean

2001 ◽  
Vol 27 (8) ◽  
pp. 1475-1478
Author(s):  
Shin-Ya Ogino ◽  
Manabu D. Yamanaka ◽  
Shoichiro Fukao
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
Gravity Wave ◽  
Temporal Variations ◽  
Wave Activity ◽  
West Pacific ◽  
East Indian ◽  
West Pacific Ocean ◽  
East Indian Ocean

Profiling the Vertical Transport of Microplastics in the West Pacific Ocean and the East Indian Ocean with a Novel in Situ Filtration Technique

2020 ◽  
Vol 54 (20) ◽  
pp. 12979-12988
Author(s):  
Daoji Li ◽  
Kai Liu ◽  
Changjun Li ◽  
Guyu Peng ◽  
Anthony L. Andrady ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
Vertical Transport ◽  
The West ◽  
East Indian ◽  
West Pacific Ocean ◽  
The West Pacific Ocean ◽  
East Indian Ocean ◽  
Filtration Technique

scholarly journals Corrigendum to

2021 ◽  
pp. 105644
Author(s):  
Ravi Shankar Pandey ◽  
Yuei-An Liou
Keyword(s):  
Pacific Ocean ◽  
Tropical Storm ◽  
Storm Tracks ◽  
West Pacific ◽  
North West ◽  
Atmospheric Research ◽  
West Pacific Ocean ◽  
The North

scholarly journals Bump‐head sunfish Mola alexandrini photographed in the north‐west Pacific Ocean mesopelagic zone

2019 ◽  
Vol 96 (1) ◽  
pp. 278-280
Author(s):  
Etsuro Sawai ◽  
Morihiko Yamada
Keyword(s):  
Pacific Ocean ◽  
West Pacific ◽  
North West ◽  
West Pacific Ocean ◽  
The North ◽  
Mesopelagic Zone

scholarly journals STUDIES ON MOVEMENTS OF ALBACORE FISHING GROUNDS IN THE NORTH WEST PACIFIC OCEAN-II

1959 ◽  
Vol 25 (6) ◽  
pp. 424-430
Author(s):  
Motoo INOUE
Keyword(s):  
Pacific Ocean ◽  
West Pacific ◽  
North West ◽  
West Pacific Ocean ◽  
The North

An ocean data assimilation system in the Indian Ocean and west Pacific Ocean

2015 ◽  
Vol 32 (11) ◽  
pp. 1460-1472 ◽  
Author(s):  
Changxiang Yan ◽  
Jiang Zhu ◽  
Jiping Xie
Keyword(s):  
Pacific Ocean ◽  
Indian Ocean ◽  
Data Assimilation ◽  
West Pacific ◽  
West Pacific Ocean ◽  
Ocean Data Assimilation ◽  
The Indian Ocean ◽  
Data Assimilation System ◽  
Assimilation System

scholarly journals Comparative analysis of TEC disturbances above regions of tropical cyclones in the north-west Pacific Ocean

10.12737/6594 ◽  
2015 ◽  
Vol 1 (1) ◽  
pp. 63-74
Author(s):  
Анна Полякова ◽  
Anna Polyakova ◽  
Наталья Перевалова ◽  
Natalia Perevalova
Keyword(s):  
Pacific Ocean ◽  
Tropical Cyclones ◽  
Electron Content ◽  
Total Electron ◽  
West Pacific ◽  
Ionospheric Response ◽  
North West ◽  
West Pacific Ocean ◽  
The North ◽  
Typhoon Intensity

We studied ionospheric total electron content (TEC) disturbances associated with tropical cyclones (TCs). The study was based on the statistical analysis of six cyclones with different intensity which occurred in the North-West Pacific Ocean in September–November 2005. We used TEC data from the international network of two-frequency ground-based GPS receivers and NCEP/NCAR Reanalysis meteorological archive. TEC variations of different period ranges (2–20 and 20–60 min) are shown to be more intense during TC peaks under quiet geomagnetic conditions. The highest TEC variation amplitudes are registered when the wind speed in the cyclone and the TC area are maximum. The intensification of TEC disturbances is more pronounced when several cyclones occur simulta-neously. We found that the ionospheric response to TC can be observed only after the cyclone has reached typhoon intensity. The ionospheric response is more pronounced at low satellite elevation angles.

Navifacial conditions in the north-west Pacific Ocean

1977 ◽  
Vol 33 (4) ◽  
pp. 183-189 ◽  
Author(s):  
J. R. Donguy ◽  
C. Henin
Keyword(s):  
Pacific Ocean ◽  
West Pacific ◽  
North West ◽  
West Pacific Ocean ◽  
The North
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