Items where Author is "Grotheer, Hendrik"

Lin, TW, Nehrke, G, Grotheer, H, Koch, BP, Meyer, H, Ruben, M, Stein, R, Strauss, J, Tesi, T and Mollenhauer, G (2025) Holocene terrestrial permafrost contributes more highly reactive organic matter to the Laptev Sea shelf than Pleistocene permafrost. Journal of Geophysical Research: Biogeosciences, 130(10). doi:10.1029/2025JG008872

Juhls, B, Morgenstern, A, Hölemann, J, Eulenburg, A, Heim, B, Miesner, F, Grotheer, H, Mollenhauer, G, Meyer, H, Erkens, E, Gehde, FY, Antonova, S, Chalov, S, Tereshina, M, Erina, O, Fingert, E, Abramova, E, Sanders, T, Lebedeva, L, Torgovkin, N, Maksimov, G, Povazhnyi, V, Gonçalves-Araujo, R, Wünsch, U, Chetverova, A, Opfergelt, S and Overduin, PP (2025) Lena River biogeochemistry captured by a 4.5-year high-frequency sampling program. Earth System Science Data, 17(1). 1-28. doi:10.5194/essd-17-1-2025

Grotheer, H, Hammes, JS, Gentz, T, Castrillejo, M, Wacker, L, Hansman, RL and Mollenhauer, G (2025) Radiocarbon measurements of dissolved inorganic carbon (DIC) in sediment porewater and seawater at AWI MICADAS. Radiocarbon. 1-10. doi:10.1017/RDC.2024.139

Queiroz Alves, E, Wong, W, Hefter, J, Grotheer, H, Tesi, T, Gentz, T, Zonneveld, K and Mollenhauer, G (2024) Deglacial export of pre-aged terrigenous carbon to the Bay of Biscay. Climate of the Past, 20(1). 121-136. doi:10.5194/cp-20-121-2024

Nicolas, A, Mollenhauer, G, Lachner, J, Stübner, K, Malter, M, Wollenburg, J, Grotheer, H and Adolphi, F (2024) Precise dating of deglacial Laptev Sea sediments via 14 C and authigenic 10 Be∕ 9 Be – assessing local 14 C reservoir ages. Climate of the Past, 20(11). 2617-2628. doi:10.5194/cp-20-2617-2024

Wei, B, Seidel, M, Mollenhauer, G, Lefebvre, A, Miramontes, E, Grotheer, H, Elvert, M, Wendt, J, Dittmar, T and Holtappels, M (2024) Rapid down‐slope transport of fresh dissolved organic matter to the deep ocean in the eastern North Atlantic. Geophysical Research Letters, 51(21). doi:10.1029/2024GL110349

Wollenburg, J, Matthiessen, J, Vogt, C, Grotheer, H, Geibert, W and Mollenhauer, G (2024) Reply to: Influence of deep-reaching bioturbation on Arctic ocean radiocarbon chronology. Communications Earth & Environment, 5(1). doi:10.1038/s43247-024-01462-z

Wei, B, Mollenhauer, G, Kusch, S, Hefter, J, Grotheer, H, Schefuß, E, Geibert, W, Ransby, D and Jia, G (2023) Anthropogenic perturbations change the quality and quantity of terrestrial carbon flux to the coastal ocean. Journal of Geophysical Research: Biogeosciences, 128(10). doi:10.1029/2023JG007482

Wollenburg, JE, Matthiessen, J, Vogt, C, Nehrke, G, Grotheer, H, Wilhelms-Dick, D, Geibert, W and Mollenhauer, G (2023) Omnipresent authigenic calcite distorts Arctic radiocarbon chronology. Communications Earth & Environment, 4(1). doi:10.1038/s43247-023-00802-9

Ruben, M, Hefter, J, Schubotz, F, Geibert, W, Butzin, M, Gentz, T, Grotheer, H, Forwick, M, Szczuciński, W and Mollenhauer, G (2023) Fossil organic carbon utilization in marine Arctic fjord sediments by subsurface micro-organisms. Nature Geoscience, 16(7). 625-630. doi:10.1038/s41561-023-01198-z

Ogneva, O, Mollenhauer, G, Juhls, B, Sanders, T, Palmtag, J, Fuchs, M, Grotheer, H, Mann, PJ and Strauss, J (2023) Particulate organic matter in the Lena River and its delta: from the permafrost catchment to the Arctic Ocean. Biogeosciences, 20(7). 1423-1441. doi:10.5194/bg-20-1423-2023

Grotheer, H and Mollenhauer, G (2023) The impact of leaching on radiocarbon ages of small-sizede foraminifera samples. Radiocarbon, 65(1). 121-133. doi:10.1017/RDC.2022.96

Zuhr, AM, Dolman, AM, Ho, SL, Groeneveld, J, Löwemark, L, Grotheer, H, Su, CC and Laepple, T (2022) Age-heterogeneity in marine sediments revealed by three-dimensional high-resolution radiocarbon measurements. Frontiers in Earth Science, 10. doi:10.3389/feart.2022.871902

Wu, J, Mollenhauer, G, Stein, R, Köhler, P, Hefter, J, Fahl, K, Grotheer, H, Wei, B and Nam, SI (2022) Deglacial release of petrogenic and permafrost carbon from the Canadian Arctic impacting the carbon cycle. Nature Communications, 13(1). doi:10.1038/s41467-022-34725-4

Zonneveld, KAF, Grotheer, H and Versteegh, GJM (2022) Dinoflagellate cysts production, excystment and transport in the upwelling off Cape Blanc (NW Africa). Frontiers in Marine Science, 9. doi:10.3389/fmars.2022.915755

Mollenhauer, G, Grotheer, H, Gentz, T, Bonk, E and Hefter, J (2021) Standard operation procedures and performance of the MICADAS radiocarbon laboratory at Alfred Wegener Institute (AWI), Germany. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 496. 45-51. doi:10.1016/j.nimb.2021.03.016

Wei, B, Mollenhauer, G, Hefter, J, Kusch, S, Grotheer, H, Schefuß, E and Jia, G (2021) The nature, timescale, and efficiency of riverine export of terrestrial organic carbon in the (sub)tropics: Insights at the molecular level from the Pearl River and adjacent coastal sea. Earth and Planetary Science Letters, 565. 116934. doi:10.1016/j.epsl.2021.116934

Wei, B, Mollenhauer, G, Hefter, J, Grotheer, H and Jia, G (2020) Dispersal and aging of terrigenous organic matter in the Pearl River Estuary and the northern South China Sea Shelf. Geochimica et Cosmochimica Acta, 282. 324-339. doi:10.1016/j.gca.2020.04.032