Termination 1 Millennial‐Scale Rainfall Events Over the Sunda Shelf

Buckingham, F.; Carolin, Stacy; Partin, J. W.; Adkins, Jess F.; Cobb, K. M.; Day, Christopher C.; Ding, Qinghua; He, Chengfei; Liu, Z.; Otto‐Bliesner, Bette L.; Roberts, William H. G.; Lejau, Syria; Malang, Jenny

doi:10.1029/2021gl096937

Cited by 20 publications

(20 citation statements)

References 64 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The lack of clear LGM-vs-Holocene change in Northern Borneo δ 18 O dw stands in stark contrast to the strong δ 18 O dw enrichment of up to −7.87 ‰ during the glacial termination, associated with NH cooling events during HS1 and YD. Assuming precipitation amount as the major influence on δ 18 O dw , this deglacial evolution of δ 18 O dw corroborates previous interpretations of transient drying in the northern Sunda Shelf area based on speleothem δ 18 O cc records 26 , 28 . This finding is consistent with global-scale shifts in tropical rainfall during episodes of hemispherically asymmetric temperature changes associated with latitudinal shifts in atmospheric circulation patterns such as the Intertropical Convergence Zone 23 , 25 , 34 .…”

Section: Resultssupporting

confidence: 89%

“… 26 , 27 ), interpreted as records of hydroclimate variability. This is also true for the δ 18 O cc record of stalagmite SC02 28 (Fig. 3b ).…”

Section: Resultssupporting

confidence: 59%

“…b δ 18 O cc of stalagmite SC02 (10–20 ka: ref. 28 ; Holocene: this study). c Calculated δ 18 O dw based on δ 18 O cc and cave temperature, corrected for ice volume related changes of mean ocean δ 18 O, with 2 SE error bars (Methods and Supplementary Data).…”

Section: Resultsmentioning

confidence: 69%

“…U/Th ages (with 95% confidence intervals) from ref. 28 are shown below. The magnitude of glacial-interglacial temperature change (ΔT) is 4.4 ± 0.3 °C (2 SEM) in the cave, and 3.6 ± 0.3 °C (2 SEM) when corrected for sea level induced changes in cave altitude.…”

Section: Resultsmentioning

confidence: 99%

“…The stable isotope measurements in SC02 between 19.5–10.7ka were performed in the study of ref. 28 . Samples were milled along the growth axis of SC02 in the Department of Earth Sciences at the University of Oxford.…”

Section: Methodsmentioning

confidence: 99%

See 4 more Smart Citations

Evolution of tropical land temperature across the last glacial termination

et al. 2022

Self Cite

View full text Add to dashboard Cite

The tropical West Pacific hosts the warmest part of the surface ocean and has a considerable impact on the global climate system. Reconstructions of past temperature in this region can elucidate climate connections between the tropics and poles and the sensitivity of tropical temperature to greenhouse forcing. However, existing data are equivocal and reliable information from terrestrial archives is particularly sparse. Here we constrain the magnitude and timing of land temperature change in the tropical West Pacific across the last deglaciation using an exceptionally precise paleothermometer applied to a well-dated stalagmite from Northern Borneo. We show that the cave temperature increased by 4.4 ± 0.3 °C (2 SEM) from the Last Glacial Maximum to the Holocene, amounting to 3.6 ± 0.3 °C (2 SEM) when correcting for sea-level induced cave altitude change. The warming closely follows atmospheric CO2 and Southern Hemisphere warming. This contrasts with hydroclimate, as reflected by drip water δ18O, which responds to Northern Hemisphere cooling events in the form of prominent drying, while temperature was rising. Our results thus show a close response of tropical temperature to greenhouse forcing, independent of shifts in the tropical circulation patterns.

show abstract

Section: Resultssupporting

confidence: 89%

“… 26 , 27 ), interpreted as records of hydroclimate variability. This is also true for the δ 18 O cc record of stalagmite SC02 28 (Fig. 3b ).…”

Section: Resultssupporting

confidence: 59%

Section: Resultsmentioning

confidence: 69%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Evolution of tropical land temperature across the last glacial termination

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

Stalagmite evidence of Last Glacial Maximum to early Holocene climate variability in southwestern Iran

SOLEIMANI

Nadimi

Koltai

et al. 2022

J Quaternary Science

Self Cite

View full text Add to dashboard Cite

Glacial periods and their terminations are useful for assessing the full scale of natural climate variability in the diverse climate regions of West Asia (i.e. deserts, mountains, alluvial plains, coastal zones). In this study, we report the first stalagmite stable isotope (δ 18 O and δ 13 C) records from the southern Zagros Mountains in southwest Iran. The records partially span the period from the Last Glacial Maximum (LGM) to the early Holocene, 24.2-9.6 thousand years before the present. The southwest Iran stalagmite δ 18 O and δ 13 C records indicate that climate and environment in the area differed substantially between the LGM and early Holocene. High stalagmite δ 13 C values are found at the LGM (7‰ greater compared to the early Holocene), and are attributed to sparse vegetation and reduced soil bio-productivity, and possibly a greater degree of prior calcite precipitation in the epikarst, as a result of a cold and dry climate. Stalagmite δ 18 O values are also high at the LGM (4‰ greater compared to the early Holocene), and are attributed to lower temperatures (larger water-calcite isotope fractionation) and higher δ 18 O values of the moisture sources (Mediterranean and Red Seas). Through the deglaciation, stalagmite δ 18 O, δ 13 C and/or growth features coincide with the North Atlantic Heinrich Stadial 1, the Bølling-Allerød warm period and the Younger Dryas cold event, supporting a relationship between southern Zagros climate and the North Atlantic millennial events.

show abstract