Late Quaternary fingerprints of precession and sea level variation over the past 35 kyr as revealed by sea surface temperature and upwelling records from the Indian Ocean near southernmost Sumatra

Li, Ziye; Shi, Xuefa; Chen, Min‐Te; Wang, Houjie; Liu, Shengfa; Xu, Jian; Long, Haiyan; Troa, Rainer Arief; Zuraida, Rina; Triarso, Eko

doi:10.1016/j.quaint.2016.07.013

Cited by 13 publications

(5 citation statements)

References 52 publications

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“…The similar shift and scale values for pairs of neighboring cores with different data resolution suggest that these results reflect real differences in SST or salinity variability within the WPWP and indicate a weaker amplitude for planktonic 𝛿 18 O change at these sites. Previous studies show regional differences in 𝛿 18 Oseawater that may explain the reduced amplitude of planktonic WPWP where glacial surface water 𝛿 18 O was more positive at the LGM (Visser et al, 2003;Xu et al, 2008, Li et al 2016), these sites show negative shifts in surface water 𝛿 18 O at the LGM (Rosenthal et al, 2003;Lea et al, 2000). The observed heterogeneity in 𝛿 18 Oseawater likely results from regional differences in precipitation (de Garidel-Thoron et al, 2005) and/or the varied impacts of changes in sea level on the Indonesian throughflow and connectivity of regional seas (Linsley et al, 2010).…”

Section: Homogeneity Of Wpwp Planktonic 𝛿 18 Omentioning

confidence: 87%

An 800-kyr planktonic 𝜹¹⁸O stack for the West Pacific Warm Pool

Bowman,

Rand,

Lisiecki

et al. 2023

Preprint

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Abstract. The West Pacific Warm Pool (WPWP) exhibits different glacial-interglacial climate variability than high latitudes, and its sea surface temperatures are thought to respond primarily to changes in greenhouse gas concentrations. To better characterize the orbital scale climate response of the WPWP, we constructed a planktonic 𝛿18O stack (average) of 11 previously published WPWP records of the last 800 kyr, available at https://doi.org/10.5281/zenodo.8190829 (Bowman et al., 2023), using new Bayesian alignment and stacking software BIGMACS. Similarities in stack uncertainty between the WPWP planktonic 𝛿18O stack and benthic 𝛿18O stacks also constructed using BIGMACS demonstrate that the software performs similarly well when aligning regional planktonic or benthic 𝛿18O data. Sixty-seven radiocarbon dates from four of the WPWP cores suggest that WPWP planktonic 𝛿18O change is nearly synchronous with global benthic 𝛿18O during the last glacial termination. However, the WPWP planktonic 𝛿18O stack exhibits less glacial/interglacial amplitude and less spectral power at all orbital frequencies than benthic 𝛿18O stacks. We assert that the WPWP planktonic 𝛿18O stack provides a useful representation of orbital-scale regional climate response and a regional alignment target, particularly for the higher resolution 0–450 ka portion of our stack.

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Section: Homogeneity Of Wpwp Planktonic 𝛿 18 Omentioning

confidence: 87%

An 800-kyr planktonic 𝜹¹⁸O stack for the West Pacific Warm Pool

Bowman,

Rand,

Lisiecki

et al. 2023

Preprint

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“…Skenario untuk simulasi prediksi kenaikan muka air laut diturunkan dari dokumen laporan sintesis IPCC (2007) dengan penambahan beberapa asumsi terkait dengan pemilihan pilot lokasi kajian. Skenario dari IPCC tersebut juga diacu oleh Perdinan et al (2017), yang hingga kini masih relevan (Li et al 2016;Liu et al, 2020). Asumsi yang diambil tersebut antara lain: belum melibatkan parameter geodinamika seperti kemungkinan adanya Uplift dan/atau Land Subsidence dalam kurun waktu 2012-2037 secara kontinyu setiap tahun; juga tidak melibatkan parameter gelombang akibat angin (wind waves); dan di Kabalutan bukan suatu zona industri dan tidak terdapat PLTU yang membuang limbah air panas ke laut, sehingga apabila terjadi pemanasan global sedikit dimungkinkan berdampak kepada kenaikan muka air laut di Kabalutan (Brodjonegoro et al, 2004;Supangat & Pranowo, 2013).…”

Section: Pendahuluanunclassified

Dinamika Muka Laut Di Pesisir Kabalutan, Teluk Tomini

Puspita¹

2020

Jurnal Kelautan Nasional

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ABSTRAK Pesisir Kabalutan yang berada dalam Teluk Tomini merupakan tempat bermukim dari Suku Bajo, yang umum membangun rumah di atas perairan atau di atas permukaan laut, sehingga dikhawatirkan apabila terjadi kenaikan muka air laut akan menenggelamkan permukiman. Kajian karakteristik pasang surut di lokasi permukiman dilakukan untuk mendapatkan informasi dalam melihat respon lingkungan fisik perairan berupa dinamika muka laut sesaat terhadap isu dampak perubahan iklim, yakni kenaikan muka air laut.Kajian mengambil 4 stasiun observasi yang dianggap mewakili daerah kajian dan juga untuk melihat karakteristik sekitar daerah kajian yang kemudian dilakukan komputasi komponen harmonik pasang surut menggunakan data satelit altimetri TOPEX/Poseidon. Berdasarkan komponen harmonik tersebut, dilakukan prediksi dinamika pasang surut sesaat dan prediksi dinamika pasang surut untuk 25 tahun mendatang. Data batimetri yang digunakan sebagai referensi adalah diekstraksi dari GEBCO (2008) yang beresolusi 30 arcsec. Skenario untuk simulasi prediksi kenaikan muka air laut diturunkan dari dokumen laporan sintesis IPCC (2007) dengan penambahan beberapa asumsi terkait dengan pemilihan pilot lokasi kajian.Hasil kajian menunjukkan kondisi pasang surut di Kabalutan, Teluk Tomini mempunyai tipe campuran cenderung semidiurnal dan tinggi maksimum muka laut maksimum ~0.9612 m, minimum ~-0.8576 m, dan tunggang ~1.8188 m. Dengan asumsi apabila terjadi kenaikan muka air laut yang kontinyu pada setiap tahunnya, maka diperoleh formulasi logaritmik (y = 0.148ln(x) + 0.736), sedangkan secara kondisi harmonik normal, maka diperoleh formulasi polinomial (y = 7E-13x5 + 3E-10x4 - 3E-07x3 + 5E-05x2 - 0.002x + 0.891.

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“…The South Asian Monsoon (SAM) directly affects the climate of the Indian subcontinent and indirectly influences farafield regions through atmospheric and oceanic teleconnections (e.g., Lau, 1992;Liu et al, 2004). Due to its key role for regional and global hydrological cycles, much attention has been devoted to better understand and predict its variability on multiple timescales, including its long-term future changes (e.g., Huo and Peltier, 2020;Swapna et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

The remote response of the South Asian Monsoon to reduced dust emissions and Sahara greening during the middle Holocene

et al. 2021

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Abstract. Previous studies based on multiple paleoclimate archives suggested a prominent intensification of the South Asian Monsoon (SAM) during the mid-Holocene (MH, ∼6000 years before present). The main forcing that contributed to this intensification is related to changes in the Earth's orbital parameters. Nonetheless, other key factors likely played important roles, including remote changes in vegetation cover and airborne dust emission. In particular, northern Africa also experienced much wetter conditions and a more mesic landscape than today during the MH (the so-called African Humid Period), leading to a large decrease in airborne dust globally. However, most modeling studies investigating the SAM changes during the Holocene overlooked the potential impacts of the vegetation and dust emission changes that took place over northern Africa. Here, we use a set of simulations for the MH climate, in which vegetation over the Sahara and reduced dust concentrations are considered. Our results show that SAM rainfall is strongly affected by Saharan vegetation and dust concentrations, with a large increase in particular over northwestern India and a lengthening of the monsoon season. We propose that this remote influence is mediated by anomalies in Indian Ocean sea surface temperatures and may have shaped the evolution of the SAM during the termination of the African Humid Period.

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Late Quaternary fingerprints of precession and sea level variation over the past 35 kyr as revealed by sea surface temperature and upwelling records from the Indian Ocean near southernmost Sumatra

Cited by 13 publications

References 52 publications

An 800-kyr planktonic 𝜹¹⁸O stack for the West Pacific Warm Pool

An 800-kyr planktonic 𝜹¹⁸O stack for the West Pacific Warm Pool

Dinamika Muka Laut Di Pesisir Kabalutan, Teluk Tomini

The remote response of the South Asian Monsoon to reduced dust emissions and Sahara greening during the middle Holocene

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Late Quaternary fingerprints of precession and sea level variation over the past 35 kyr as revealed by sea surface temperature and upwelling records from the Indian Ocean near southernmost Sumatra

Cited by 13 publications

References 52 publications

An 800-kyr planktonic 𝜹18O stack for the West Pacific Warm Pool

An 800-kyr planktonic 𝜹18O stack for the West Pacific Warm Pool

Dinamika Muka Laut Di Pesisir Kabalutan, Teluk Tomini

The remote response of the South Asian Monsoon to reduced dust emissions and Sahara greening during the middle Holocene

Contact Info

Product

Resources

About

An 800-kyr planktonic 𝜹¹⁸O stack for the West Pacific Warm Pool

An 800-kyr planktonic 𝜹¹⁸O stack for the West Pacific Warm Pool