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Nuber, Sophie; Rae, James W B; Zhang, Xu; Andersen, Morten L; Dumont, Matthew; Mithan, T Huw; Sun, Yuchen; de Boer, Bas; Hall, Ian R; Barker, Stephen (2023): ANICE-SELEN topography model changes in land to sea ratios in the Indonesian Archipelago [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955720, In: Nuber, S et al. (2023): Dataset for Indian Ocean Salinity build-up primes Deglacial Ocean Circulation Recovery [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.955609

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Abstract:
Indian Ocean surface circulation is an important part of the global ocean conveyor belt, and is connected via two important gateways including the Indonesian Throughflow, and the Agulhas Leakage. Changes in the surface hydrography of the Indian Ocean may therefore impact on the global overturning circulation. Using planktonic foraminifera-based reconstructions of Indian Ocean surface salinity and temperature, we find that Indian Ocean surface water became saliter during glacial intensification. Here we present bathymetrical change data for the Indonesian Archipelago which shows that the Indonesian Throughflow was likely impacted due to changes in global mean sea level and possibly drove the changes in salinity during a glacial cycle.
Keyword(s):
Indian Ocean; oxygen isotope ratios; oxygen isotopes; planktic foraminifera; Salinity; Temperature; Sea surface salinity; Sea surface temperature
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Global mean sea levelGMSLmNuber, SophieCalculatedRise
AGEAgeka BPNuber, SophieCalculatedGeocode – GMSL rise
RatioRatioNuber, SophieCalculated from Ice sheet-topography model, ANICE-SELENPixel ratio (land/sea) at GMSL rise
RatioRatioNuber, SophieCalculated from Ice sheet-topography model, ANICE-SELENDelta pixel ratio (land/sea) at GMSL rise
Global mean sea levelGMSLmNuber, SophiemodelledFall
AGEAgeka BPNuber, SophiemodelledGeocode – GMSL Fall
RatioRatioNuber, SophieCalculated from Ice sheet-topography model, ANICE-SELENPixel ratio (land/sea) at GMSL fall
RatioRatioNuber, SophieCalculated from Ice sheet-topography model, ANICE-SELENDelta pixel ratio (land/sea) at GMSL fall
Size:
1614 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


GMSL [m]
(Rise, Calculated)

Age [ka BP]
(GMSL rise, Calculated)

Ratio
(Pixel ratio (land/sea) at GMS...)

Ratio
(Delta pixel ratio (land/sea) ...)

GMSL [m]
(Fall, modelled)

Age [ka BP]
(GMSL Fall, modelled)

Ratio
(Pixel ratio (land/sea) at GMS...)

Ratio
(Delta pixel ratio (land/sea) ...)
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