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Silicon isotope data for spicules from RAPiD 15-4P reported relative to NBS28 (2018)

Hendry, Katharine R ; Gong, Xun ; Knorr, Gregor ; [weitere]

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In: Supplement to: Hendry, Katharine R; Gong, Xun; Knorr, Gregor; Pike, Jennifer; Hall, Ian R (2016): Deglacial diatom production in the tropical North Atlantic driven by enhanced silicic acid supply. Earth and Planetary Science Letters, 438, 122-129, https://doi.org/10.1016/j.epsl.2016.01.016

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Publikationsdatum: 2023-06-27

Beschreibung: This data release contains stable silicon isotope data from sponge spicules isolated from sediment core RAPiD15-4P off Iceland, from 10 to 18 ka.

Schlagwort(e): AGE; CD159; CD159-15; Charles Darwin; DEPTH, sediment/rock; PC; Piston corer; RAPiD-15-4P; South of Iceland; δ30Si, biogenic silica; δ30Si, error

Materialart: Dataset

Format: text/tab-separated-values, 54 data points

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Basal melt rates in equilibrium simulations of the Antarctic ice sheet under pre-industrial, 40 ka, and Last Glacial Maximum ocean conditions using the Parallel Ice Sheet Model (PISM 1.1) (2021)

Stap, Lennert Bastiaan ; Knorr, Gregor ; Barker, Stephen ; [weitere]

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Publikationsdatum: 2024-04-20

Beschreibung: We present basal melt rates for the ice shelves in equilibrium simulations of the Antarctic ice sheet (AIS), using the 3D thermodynamical Parallel Ice Sheet Model (PISM) version 1.1 with PICO as ocean component. The applied climate forcing consists of yearly mean present-day temperature and precipitation fields from RACMO2.3 (RACMO2 ANT27), and 400-800 m depth average ocean temperature and salinity, obtained from simulations using the atmosphere-ocean general circulation model COSMOS (ocean model MPIOM). COSMOS was run using pre-industrial settings (PID; 278 ppm CO2), settings from 40 kyr ago (40ka; 195 ppm CO2), and Last Glacial Maximum settings (LGM; 185 ppm CO2). All simulations are started with present-day bedrock conditions, and a present-day AIS size (Bedmap2). The steady state simulations are conducted by applying the same climate forcing over 200 kyr, after a thermodynamical spin-up (no mass changes) of 200,100 yr.

Schlagwort(e): 40ka; Antarctica; Antarctic Ice Sheet; Basal melt rates; Glacial climate; Last Glacial Maximum; pre-industrial

Materialart: Dataset

Format: application/zip, 164.5 kBytes

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