Andrea Schroeder-Ritzrau

Dr. Andrea Schroeder-Ritzrau


Research Focus & Metrics

Academic Career Length

35Years (1992-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2020 in Geochimica et Cosmochimica Acta
Verified
Journal Article
Open access
JWJasper A. Wassenburg
Jasper A. Wassenburg
SRSylvia Riechelmann
Sylvia Riechelmann
ASAndrea Schroeder-Ritzrau
Andrea Schroeder-Ritzrau
DRDana F.C. Riechelmann
Dana F.C. Riechelmann
DRDetlev K. Richter
Detlev K. Richter
DSDenis Scholz
Denis Scholz

1 November 2011 in Journal of Hydrology
Verified
Journal Article
Closed access
DRDana Felicitas Christine Riechelmann
Dana Felicitas Christine Riechelmann
ASAndrea Schroeder-Ritzrau
Andrea Schroeder-Ritzrau
DSDenis Scholz
Denis Scholz
JFJens Fohlmeister
Jens Fohlmeister
CSChristoph Spötl
Christoph Spötl
AMAugusto Mangini
Augusto Mangini

31 October 2012 in Climate of the Past
Verified
Journal Article
Open access
PDF file
JFJ. Fohlmeister
J. Fohlmeister
ASAndrea Schroeder-Ritzrau
Andrea Schroeder-Ritzrau
DSD. Scholz
D. Scholz
CSC. Spötl
C. Spötl
DRD. F. C. Riechelmann
D. F. C. Riechelmann
AMA. Mangini
A. Mangini
Holocene climate was characterised by variability on multi-centennial to multi-decadal time scales. In central Europe, these fluctuations were most pronounced during winter. Here we present a record of past winter climate variability for the last 10.8 ka based on four speleothems from Bunker Cave, western Germany. Due to its central European location, the cave site is particularly well suited to record changes in precipitation and temperature in response to changes in the North Atlantic realm. We present high-resolution records of δ18O, δ13C values and Mg/Ca ratios. Changes in the Mg/Ca ratio are attributed to past meteoric precipitation variability. The stable C isotope composition of the speleothems most likely reflects changes in vegetation and precipitation, and variations in the δ18O signal are interpreted as variations in meteoric precipitation and temperature. We found cold and dry periods between 8 and 7 ka, 6.5 and 5.5 ka, 4 and 3 ka as well as between 0.7 and 0.2 ka. The proxy signals in the Bunker Cave stalagmites compare well with other isotope records and, thus, seem representative for central European Holocene climate variability. The prominent 8.2 ka event and the Little Ice Age cold events are both recorded in the Bunker Cave record. However, these events show a contrasting relationship between climate and δ18O, which is explained by different causes underlying the two climate anomalies. Whereas the Little Ice Age is attributed to a pronounced negative phase of the North Atlantic Oscillation, the 8.2 ka event was triggered by cooler conditions in the North Atlantic due to a slowdown of the thermohaline circulation.

1 August 2013 in Earth and Planetary Science Letters
Verified
Journal Article
Closed access
JWJ.A. Wassenburg
J.A. Wassenburg
AIA. Immenhauser
A. Immenhauser
DRD.K. Richter
D.K. Richter
ANA. Niedermayr
A. Niedermayr
SRS. Riechelmann
S. Riechelmann
Jan EsperJan Esper
Jan Esper

1 February 1995 in International Journal of Earth Sciences
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Journal Article
Closed access
PDF file
CSC. Samtleben
C. Samtleben
PSP. Schäfer
P. Schäfer
HAH. Andruleit
H. Andruleit
ABA. Baumann
A. Baumann
KBK. -H. Baumann
K. -H. Baumann
‘G‘Synpal’ Working Group
‘Synpal’ Working Group

1 August 1992 in Marine Micropaleontology
Verified
Journal Article
Closed access
CSChristian Samtleben
Christian Samtleben
ASAndrea Schroeder-Ritzrau
Andrea Schroeder-Ritzrau