Impacts of the upper-ocean salinity variations on the decadal sea level change in the Southeast Indian Ocean during the Argo era

2020 ◽  
Vol 39 (7) ◽  
pp. 1-10
Author(s):  
Jiamei Huang ◽  
Wei Zhuang ◽  
Xiao-Hai Yan ◽  
Zelun Wu
Keyword(s):  
Indian Ocean ◽  
Sea Level ◽  
Sea Level Change ◽  
Upper Ocean ◽  
Level Change ◽  
Ocean Salinity ◽  
Salinity Variations

Patterns of Indian Ocean sea-level change in a warming climate

2010 ◽  
Vol 3 (8) ◽  
pp. 546-550 ◽  
Author(s):  
Weiqing Han ◽  
Gerald A. Meehl ◽  
Balaji Rajagopalan ◽  
John T. Fasullo ◽  
Aixue Hu ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Sea Level ◽  
Sea Level Change ◽  
Level Change ◽  
Warming Climate

Decadal Variability of the Upper-Ocean Salinity in the Southeast Indian Ocean: Role of Local Ocean–Atmosphere Dynamics

2021 ◽  
Vol 34 (19) ◽  
pp. 7927-7942
Author(s):  
Yue Wu ◽  
Xiao-Tong Zheng ◽  
Qi-Wei Sun ◽  
Yu Zhang ◽  
Yan Du ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Sea Level ◽  
Decadal Variability ◽  
Upper Ocean ◽  
Decadal Time Scale ◽  
Salinity Variability ◽  
Ocean Salinity ◽  
Ocean Atmosphere ◽  
Dipole Pattern ◽  
Meridional Advection

AbstractOcean salinity plays a crucial role in the upper-ocean stratification and local marine ecosystem. This study reveals that ocean salinity presents notable decadal variability in upper 200 m over the southeast Indian Ocean (SEIO). Previous studies linked this salinity variability with precipitation anomalies over the Indo-Pacific region modulated by the tropical Pacific decadal variability. Here we conduct a quantitative salinity budget analysis and show that, in contrast, oceanic advection, especially the anomalous meridional advection, plays a dominant role in modulating the SEIO salinity on the decadal time scale. The anomalous meridional advection is mainly associated with a zonal dipole pattern of sea level anomaly (SLA) in the south Indian Ocean (SIO). Specifically, positive and negative SLAs in the east and west of the SIO correspond to anomalous southward oceanic current, which transports much fresher seawater from the warm pool into the SEIO and thereby decreases the local upper-ocean salinity, and vice versa. Further investigation reveals that the local anomalous wind stress curl associated with tropical Pacific forcing is responsible for generating the sea level dipole pattern via oceanic Rossby wave adjustment on decadal time scale. This study highlights that the local ocean–atmosphere dynamical adjustment is critical for the decadal salinity variability in the SEIO.

scholarly journals Radiocarbon dating of mangrove sediments to constrain Holocene relative sea-level change on Zanzibar in the southwest Indian Ocean

The Holocene ◽  
2015 ◽  
Vol 25 (5) ◽  
pp. 820-831 ◽  
Author(s):  
Sarah A Woodroffe ◽  
Antony J Long ◽  
Paramita Punwong ◽  
Katherine Selby ◽  
Charlotte L Bryant ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Sea Level ◽  
Radiocarbon Dating ◽  
Sea Level Change ◽  
Mangrove Sediments ◽  
Relative Sea Level ◽  
Southwest Indian Ocean ◽  
Level Change

Phanerozoic Oxygen

2017 ◽  
Author(s):  
Donald Eugene Canfield
Keyword(s):  
Oxygen Consumption ◽  
Organic Carbon ◽  
Sea Level ◽  
Time Scale ◽  
Atmospheric Oxygen ◽  
Sea Level Change ◽  
Oxygen Production ◽  
Level Change ◽  
History Of ◽  
Geologic Processes

This chapter discusses the modeling of the history of atmospheric oxygen. The most recently deposited sediments will also be the most prone to weathering through processes like sea-level change or uplift of the land. Thus, through rapid recycling, high rates of oxygen production through the burial of organic-rich sediments will quickly lead to high rates of oxygen consumption through the exposure of these organic-rich sediments to weathering. From a modeling perspective, rapid recycling helps to dampen oxygen changes. This is important because the fluxes of oxygen through the atmosphere during organic carbon and pyrite burial, and by weathering, are huge compared to the relatively small amounts of oxygen in the atmosphere. Thus, all of the oxygen in the present atmosphere is cycled through geologic processes of oxygen liberation (organic carbon and pyrite burial) and consumption (weathering) on a time scale of about 2 to 3 million years.

SEA-LEVEL CHANGE IN THE GULF OF MEXICO

2017 ◽  
Author(s):  
Richard A. Davis, Jr ◽  
Keyword(s):  
Gulf Of Mexico ◽  
Sea Level ◽  
Sea Level Change ◽  
Level Change
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