scholarly journals Surface Ocean Hydrographic Changes in the Western Pacific Marginal Seas Since the Early Holocene

2020 ◽  
Vol 8 ◽  
Author(s):  
Hui-Juan Pan ◽  
Min-Te Chen ◽  
Deming Kong ◽  
Xiaopei Lin ◽  
Kuo-Tsan Wong ◽  
...  
Keyword(s):  
Western Pacific ◽  
Early Holocene ◽  
Marginal Seas ◽  
Surface Ocean ◽  
The Western Pacific

scholarly journals Oxygenated volatile organic carbon in the western Pacific convective center: ocean cycling, air–sea gas exchange and atmospheric transport

2017 ◽  
Vol 17 (17) ◽  
pp. 10837-10854 ◽  
Author(s):  
Cathleen Schlundt ◽  
Susann Tegtmeier ◽  
Sinikka T. Lennartz ◽  
Astrid Bracher ◽  
Wee Cheah ◽  
...  
Keyword(s):  
South China ◽  
Atmospheric Transport ◽  
Coastal Region ◽  
Western Pacific ◽  
Northern Coast ◽  
The South ◽  
Model Calculations ◽  
Surface Ocean ◽  
Volatile Organic ◽  
The Western Pacific

Abstract. A suite of oxygenated volatile organic compounds (OVOCs – acetaldehyde, acetone, propanal, butanal and butanone) were measured concurrently in the surface water and atmosphere of the South China Sea and Sulu Sea in November 2011. A strong correlation was observed between all OVOC concentrations in the surface seawater along the entire cruise track, except for acetaldehyde, suggesting similar sources and sinks in the surface ocean. Additionally, several phytoplankton groups, such as haptophytes or pelagophytes, were also correlated to all OVOCs, indicating that phytoplankton may be an important source of marine OVOCs in the South China and Sulu seas. Humic- and protein-like fluorescent dissolved organic matter (FDOM) components seemed to be additional precursors for butanone and acetaldehyde. The measurement-inferred OVOC fluxes generally showed an uptake of atmospheric OVOCs by the ocean for all gases, except for butanal. A few important exceptions were found along the Borneo coast, where OVOC fluxes from the ocean to the atmosphere were inferred. The atmospheric OVOC mixing ratios over the northern coast of Borneo were relatively high compared with literature values, suggesting that this coastal region is a local hotspot for atmospheric OVOCs. The calculated amount of OVOCs entrained into the ocean seemed to be an important source of OVOCs to the surface ocean. When the fluxes were out of the ocean, marine OVOCs were found to be enough to control the locally measured OVOC distribution in the atmosphere. Based on our model calculations, at least 0.4 ppb of marine-derived acetone and butanone can reach the upper troposphere, where they may have an important influence on hydrogen oxide radical formation over the western Pacific Ocean.

Palaeoceanography of the western Pacific and marginal seas

2009 ◽  
Vol 24 (8) ◽  
pp. 833-835
Author(s):  
Tadamichi Oba ◽  
Ken Ikehara ◽  
Chris Turney
Keyword(s):  
Western Pacific ◽  
Marginal Seas ◽  
The Western Pacific

scholarly journals Oxygenated volatile organic carbon in the western Pacific convective centre: ocean cycling, air–sea gas exchange and atmospheric transport

2017 ◽  
Author(s):  
Cathleen Schlundt ◽  
Christa A. Marandino ◽  
Susann Tegtmeier ◽  
Sinikka T. Lennartz ◽  
Astrid Bracher ◽  
...  
Keyword(s):  
South China ◽  
Hot Spot ◽  
Coastal Region ◽  
Western Pacific ◽  
The South ◽  
Model Calculations ◽  
Surface Ocean ◽  
North Borneo ◽  
Volatile Organic ◽  
The Western Pacific

Abstract. A suite of oxygenated volatile organic compounds (OVOCs – acetaldehyde, acetone, propanal, butanal and butanone) were measured concurrently in the surface water and atmosphere of the South China Sea and Sulu Sea in November 2011. A strong correlation was observed between all OVOC concentrations in the surface seawater along the entire cruise track, except for acetaldehyde, suggesting similar sources and sinks in the surface ocean. Additionally, several phytoplankton groups, such as haptophytes or pelagophytes, were also correlated to all OVOCs indicating that phytoplankton may be an important source for marine OVOCs in the South China and Sulu Seas. Humic and protein like fluorescent dissolved organic matter (FDOM) components seemed to be additional precursors for butanone and acetaldehyde. The atmospheric OVOC mixing ratios were relative high compared with literature values, suggesting the coastal region of North Borneo as a local hot spot for atmospheric OVOCs. The flux of atmospheric OVOCs was largely into the ocean for all 5 gases, with a few important exceptions near the coast of Borneo. The calculated amount of OVOCs entrained into the ocean seemed to be an important source of OVOCs to the surface ocean. When the fluxes were out of the ocean, marine OVOCs were found to be enough to control the local measured OVOC distribution in the atmosphere. Based on our model calculations, at least 0.4 ppb of marine derived acetone and butanone can reach the upper troposphere, where they may have an important influence on hydrogen oxide radical formation over the western Pacific Ocean.

Surface sediment diatoms from the western Pacific marginal seas and their correlation to environmental variables

2009 ◽  
Vol 27 (3) ◽  
pp. 674-682 ◽  
Author(s):  
Yue Huang ◽  
Hui Jiang ◽  
Björck Svante ◽  
Tiegang Li ◽  
Houyuan Lu ◽  
...  
Keyword(s):  
Surface Sediment ◽  
Environmental Variables ◽  
Western Pacific ◽  
Marginal Seas ◽  
The Western Pacific
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