Göran Possnert
Uppsala University
Publications 389
#1Florian Mekhaldi (Lund University)H-Index: 5
#2Markus Czymzik (Leibniz Institute for Baltic Sea Research)H-Index: 7
Last.Raimund Muscheler (Lund University)H-Index: 37
view all 10 authors...
Abstract. Several climate events have been reported from the Early Holocene superepoch, the best known of these being the Preboreal oscillation (PBO). It is still unclear how the PBO and the number of climate events observed in Greenland ice cores and European terrestrial records are related to one another. This is mainly due to uncertainties in the chronologies of the records. Here, we present new high resolution 10Be concentration data from the varved Meerfelder Maar sediment record in Germany...
#1Peng Chen (Hohai University)H-Index: 1
#2Peng Yi (Hohai University)H-Index: 6
Last.Minjie Zheng (Lund University)H-Index: 2
view all 12 authors...
The magnitude of soil and sediment erosion and accumulation processes can profoundly affect landscape development and hamper efficient management of natural resources. Consequently, estimating the rates and causes of these processes is essential, particularly in remote regions, for prediction of changes in landform and river evolution and protection of local ecosystem. We here present the results of a soil and sediment erosion investigation in the Source Area of the Yellow River (SAYR), northeas...
#1Peng Yi (Hohai University)H-Index: 6
#2Zhongbo Yu (Hohai University)H-Index: 32
Last.Ahmed Murad (United Arab Emirates University)H-Index: 6
view all 13 authors...
The Asian Summer Monsoons (ASM) represent the main source of precipitation in China and East Asia with about one third of the world population and a region of widespread civilizations. Identifying the temporal and spatial patterns (pathways) of these monsoonal events during the Late Holocene to today has been a matter of debate amongst the scientific community. Here we show that the distribution patterns of the cosmogenic isotope 10 Be and oceanic 127 I in the topsoil across China exhibit imprin...
#1Y. Zhou (KTH: Royal Institute of Technology)H-Index: 3
#2H. Bergsåker (KTH: Royal Institute of Technology)H-Index: 10
Last.Jari Likonen (VTT Technical Research Centre of Finland)H-Index: 26
view all 5 authors...
Experimental results from microbeam analyses on divertor tiles, through 2011-2012 and 2013-2014 operations in JET-ILW, showed that the deuterium retention and beryllium impurity deposition were non ...
Recently, it has been confirmed that extreme solar proton events can lead to significantly increased atmospheric production rates of cosmogenic radionuclides. Evidence of such events is recorded in annually resolved natural archives, such as tree rings [carbon-14 ( 14 C)] and ice cores [beryllium-10 ( 10 Be), chlorine-36 ( 36 Cl)]. Here, we show evidence for an extreme solar event around 2,610 years B.P. (∼660 BC) based on high-resolution 10 Be data from two Greenland ice cores. Our conclusions ...
5 CitationsSource
#1Maggie S. Y. Yeung (KI: Karolinska Institutet)H-Index: 6
#2Mehdi Djelloul (KI: Karolinska Institutet)H-Index: 10
Last.Jonas Frisén (KI: Karolinska Institutet)H-Index: 68
view all 8 authors...
In this Letter, the vertical error bars were missing from Fig. 3b and 3c. This figure has been corrected online.
1 CitationsSource
#1Maggie S. Y. Yeung (KI: Karolinska Institutet)H-Index: 6
#2Mehdi Djelloul (KI: Karolinska Institutet)H-Index: 10
Last.Jonas Frisén (KI: Karolinska Institutet)H-Index: 68
view all 8 authors...
Oligodendrocytes wrap nerve fibres in the central nervous system with layers of specialized cell membrane to form myelin sheaths1. Myelin is destroyed by the immune system in multiple sclerosis, but myelin is thought to regenerate and neurological function can be recovered. In animal models of demyelinating disease, myelin is regenerated by newly generated oligodendrocytes, and remaining mature oligodendrocytes do not seem to contribute to this process2–4. Given the major differences in the dyna...
21 CitationsSource
#1Markus Czymzik (Leibniz Institute for Baltic Sea Research)H-Index: 7
#2Raimund Muscheler (Lund University)H-Index: 37
Last.Achim BrauerH-Index: 40
view all 11 authors...
Timescale uncertainties between paleoclimate reconstructions often inhibit studying the exact timing, spatial expression and driving mechanisms of climate variations. Detecting and aligning the globally common cosmogenic radionuclide production signal via a curve fitting method provides a tool for the quasi-continuous synchronization of paleoclimate archives. In this study, we apply this approach to synchronize 10 Be records from varved sediments of Tiefer See and Lake Czechowskie covering the M...
6 CitationsSource
#1Petter Ström (KTH: Royal Institute of Technology)H-Index: 7
#2Per Petersson (KTH: Royal Institute of Technology)H-Index: 14
Last.Göran Possnert (Uppsala University)H-Index: 49
view all 4 authors...
Erratum: "A combined segmented anode gas ionization chamber and time-of-flight detector for heavy ion elastic recoil detection analysis" [Rev. Sci. Instrum. 87, 103303 (2016)]
4 CitationsSource
#1Ala AldahanH-Index: 30
Last.Peng ChenH-Index: 1
view all 4 authors...