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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): Spectral and Cross Spectral Analysis for IODP Site 361-U1476 SST and planktic d18Osw-ivc [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.955733, 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 Agulha Leakage. Changes in the surface hydrography of the Indian Ocean may therefore impact on the global overturning circulation. Here we present spectral, and cross spectral analysis results which show that Indian Ocean surface salinity and temperature increased during glacial intensification, with a significant lag prior to deglaciations.
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
Spectral cycle frequencySpectral freq#/kaNuber, SophieCalculated
Spectral periodSpectral pkaNuber, SophieCalculated
Spectral densitySpectral denNuber, SophieCalculatedSST-stack
Spectral densitySpectral denNuber, SophieCalculatedδ18O sw-ivc-stack
Spectral densitySpectral denNuber, SophieCalculatedδ18O-LR04
Spectral densitySpectral denNuber, SophieCalculated361-U1476-SST
Spectral densitySpectral denNuber, SophieCalculated361-U1476-δ18O sw-ivc
Spectral densitySpectral denNuber, SophieCalculated361-U1476-δ18O-benthic foraminifera
Spectral densitySpectral denNuber, SophieCalculated353-U1446-δ18O-sw-ivc
10 Spectral densitySpectral denNuber, SophieCalculated353-U1446-δ18O-benthic foraminifera
11 Spectral coherenceSpectral cohNuber, SophieCalculatedSST-stack vs δ18Osw-ivc-stack
12 Spectral phaseSpectral phasedegNuber, SophieCalculatedSST-stack vs δ18Osw-ivc-stack
13 Spectral coherenceSpectral cohNuber, SophieCalculatedSST-stack vs δ18O-LR04
14 Spectral phaseSpectral phasedegNuber, SophieCalculatedSST-stack vs δ18O-LR04
15 Spectral coherenceSpectral cohNuber, SophieCalculatedδ18Osw-ivc-stack vs δ18O-LR04
16 Spectral phaseSpectral phasedegNuber, SophieCalculatedδ18Osw-ivc-stack vs δ18O-LR04
17 Spectral coherenceSpectral cohNuber, SophieCalculated361-U1476-SST vs 361-U1476-δ18O-benthic foraminifera
18 Spectral phaseSpectral phasedegNuber, SophieCalculated361-U1476-SST vs 361-U1476-δ18O-benthic foraminifera
19 Spectral coherenceSpectral cohNuber, SophieCalculated361-U1476-δ18O-sw-ivc vs 3614-U1476-δ18O-benthic foraminifera
20 Spectral phaseSpectral phasedegNuber, SophieCalculated361-U1476-δ18O-sw-ivc vs 361-U1476-δ18O-benthic foraminifera
21 Spectral coherenceSpectral cohNuber, SophieCalculated361-U1476-δ18O-sw-ivc vs 361-U1476-SST
22 Spectral phaseSpectral phasedegNuber, SophieCalculated361-U1476-δ18O-sw-ivc vs 361-U1476-SST
23 Spectral coherenceSpectral cohNuber, SophieCalculated353-U1446-δ18O-sw-ivc vs 353-U1446-δ18O-benthic foraminifera
24 Spectral phaseSpectral phasedegNuber, SophieCalculated353-U1446-δ18O-sw-ivc vs 353-U1446-δ18O-benthic foraminifera
Size:
2400 data points

Data

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


Spectral freq [#/ka]

Spectral p [ka]

Spectral den
(SST-stack)

Spectral den
(δ18O sw-ivc-stack)

Spectral den
(δ18O-LR04)

Spectral den
(361-U1476-SST)

Spectral den
(361-U1476-δ18O sw-ivc)

Spectral den
(361-U1476-δ18O-benthic forami...)

Spectral den
(353-U1446-δ18O-sw-ivc)
10 
Spectral den
(353-U1446-δ18O-benthic forami...)
11 
Spectral coh
(SST-stack vs δ18Osw-ivc-stack)
12 
Spectral phase [deg]
(SST-stack vs δ18Osw-ivc-stack)
13 
Spectral coh
(SST-stack vs δ18O-LR04)
14 
Spectral phase [deg]
(SST-stack vs δ18O-LR04)
15 
Spectral coh
(δ18Osw-ivc-stack vs δ18O-LR04)
16 
Spectral phase [deg]
(δ18Osw-ivc-stack vs δ18O-LR04)
17 
Spectral coh
(361-U1476-SST vs 361-U1476-δ1...)
18 
Spectral phase [deg]
(361-U1476-SST vs 361-U1476-δ1...)
19 
Spectral coh
(361-U1476-δ18O-sw-ivc vs 3614...)
20 
Spectral phase [deg]
(361-U1476-δ18O-sw-ivc vs 361-...)
21 
Spectral coh
(361-U1476-δ18O-sw-ivc vs 361-...)
22 
Spectral phase [deg]
(361-U1476-δ18O-sw-ivc vs 361-...)
23 
Spectral coh
(353-U1446-δ18O-sw-ivc vs 353-...)
24 
Spectral phase [deg]
(353-U1446-δ18O-sw-ivc vs 353-...)
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