The Helmholtz Climate Initiative REKLIM is using its unique combination of competence in regional observations and process studies (in situ observations, airborne and satellite remote sensing) coupled with model simulations to improve regional and global climate models, which provide a solid basis for climate-related decision support. Moreover, global climate simulations are used to determine the effects of climate variability and change on the regional scale with improved modelling tools for attribution and impact studies.
On the other hand, process modules and parameterisations from these regional studies serve to improve global climate models. The Climate Initiative will facilitate various scientific opportunities for improving knowledge of the regional Earth System, in particular with respect to impacts.
Section 5.2 Climate Dynamics and Landscape Evolution participates in REKLIM in Topic 8 “Abrupt climate change derived from proxy data”.
Our main questions are: Which mechanisms, processes and regional climate patterns intensify abrupt climate changes during interglacials and at glacial-interglacial transitions? How different are these patterns compared to the last interglacial, the Eemian, when the average temperature was about 1-2°C higher than it is now?
Topic 8 aims at identifying and explaining regional and temporal patterns of climate variability between the Pacific and Atlantic region as well as between lower and higher latitudes. The time span of the investigations encompasses the last 140.000 years and focusses on time scales from years to millennia. This time span allows scientists not only to analyze the rapid climate change during the last glacial termination and during the Holocene, but also to compare it to the second last glacial-interglacial transition and the following interglacial, the Eemian.
Partners in Topic 8:
Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung (AWI)
Helmholtz-Zentrum Geesthacht (HZG)
University of Bremen
University of Heidelberg
University of Hamburg
Links:
REKLIM website
Funding:
Helmholtz Gemeinschaft & GFZ
- Dräger, N., Theuerkauf, M., Szeroczynska, K., Wulf, S., Tjallingii, R., Plessen, B., Kienel, U., Brauer, A. (2017): Varve microfacies and varve preservation record of climate change and human impact for the last 6000 years at Lake Tiefer See (NE Germany). - Holocene, 27, 3, p. 450-464. | doi:10.1177/0959683616660173
- Martin-Puertas, C., Tjallingii, R., Bloemsma, M., Brauer, A. (2017): Varved sediment responses to early Holocene climate and environmental changes in Lake Meerfelder Maar (Germany) obtained from multivariate analyses of micro X-ray fluorescence core scanning data. - Journal of Quaternary Science, 32, 3, p. 427-436. | doi:10.1002/jqs.2935
- Neugebauer, I., Wulf, S., Schwab, M. J., Serb, J., Plessen, B., Appelt, O., Brauer, A. (2017): Implications of S1 tephra findings in Dead Sea and Tayma palaeolake sediments for marine reservoir age estimation and palaeoclimate synchronisation. - Quaternary Science Reviews, 170, p. 269-275. | doi:10.1016/j.quascirev.2017.06.020
- Ott, F., Kramkowski, M., Wulf, S., Plessen, B., Serb, J., Tjallingii, R., Schwab, M. J., Slowinski, M., Brykala, D., Tyszkowski, S., Putyrskaya, V., Appelt, O., Błaszkiewicz, M., Brauer, A. (2017 online): Site-specific sediment responses to climate change during the last 140 years in three varved lakes in Northern Poland. - First Published September 13, 2017, Holocene. | doi:10.1177/0959683617729448
- Palchan, D., Neugebauer, I., Amitai, Y., Waldmann, N. D., Schwab, M. J., Dulski, P., Brauer, A., Stein, M., Erel, Y., Enzel, Y. (2017): North Atlantic controlled depositional cycles in MIS 5e layered sediments from the deep Dead Sea basin. - Quaternary Research, 87, 1, p. 168-179.| doi:10.1017/qua.2016.10
- Rach, O., Kahmen, A., Brauer, A., Sachse, D. (2017): A dual-biomarker approach for quantification of changes in relative humidity from sedimentary lipid D/H ratios. - Climate of the Past, 13, 7, p. 741-757.| doi:10.5194/cp-13-741-2017
- Rach, O., Engels, S., Kahmen, A., Brauer, A., Martin-Puertas, C., van Geel, B., Sachse, D. (2017): Hydrological and ecological changes in western Europe between 3200 and 2000 years BP derived from lipid biomarker δD values in lake Meerfelder Maar sediments. - Quaternary Science Reviews, 172, p. 44-54. | doi:10.1016/j.quascirev.2017.07.019
- Slowinski, M., Zawiska, I., Ott, F., Noryśkiewicz, A. M., Plessen, B., Apolinarska, K., Rzodkiewicz, M., Michczyńska, D. J., Wulf, S., Skubała, P., Kordowski, J., Błaszkiewicz, M., Brauer, A. (2017): Differential proxy responses to late Allerød and early Younger Dryas climatic change recorded in varved sediments of the Trzechowskie palaeolake in Northern Poland. - Quaternary Science Reviews, 158, p. 94-106. | doi:10.1016/j.quascirev.2017.01.005
- Czymzik, M., Muscheler, R., Brauer, A. (2016): Solar modulation of flood frequency in central Europe during spring and summer on interannual to multi-centennial timescales. - Climate of the Past, 12, 3, p. 799-805. | doi:10.5194/cp-12-799-2016
- Engels, S., Brauer, A., Buddelmeijer, N., Martin-Puertas, C., Rach, O., Sachse, D., van Geel, B. (2016): Subdecadal-scale vegetation responses to a previously unknown late-Allerød climate fluctuation and Younger Dryas cooling at Lake Meerfelder Maar (Germany). - Journal of Quaternary Science, 31, 7, p. 741-752. | doi:10.1002/jqs.2900
- Neugebauer, I., Schwab, M. J., Waldmann, N. D., Tjallingii, R., Frank, U., Hadzhiivanova, E., Naumann, R., Taha, N., Agnon, A., Enzel, Y., Brauer, A. (2016): Hydroclimatic variability in the Levant during the early last glacial (~ 117–75 ka) derived from micro-facies analyses of deep Dead Sea sediments. - Climate of the Past, 12, 1, p. 75-90. | doi:10.5194/cp-12-75-2016
- Rimbu, N., Czymzik, M., Ionita, M., Lohmann, G., Brauer, A. (2016): Atmospheric circulation patterns associated with the variability of River Ammer floods: evidence from observed and proxy data. - Climate of the Past, 12, 2, p. 377-385. | doi:10.5194/cp-12-377-2016
- Wulf, S., Dräger, N., Ott, F., Serb, J., Appelt, O., Guðmundsdóttir, E., van den Bogaard, C., Słowiński, M., Błaszkiewicz, M., Brauer, A. (2016): Holocene tephrostratigraphy of varved sediment records from Lakes Tiefer See (NE Germany) and Czechowskie (N Poland). - Quaternary Science Reviews, 132, p. 1-14. | doi:10.1016/j.quascirev.2015.11.007
- Lane, C. S., Brauer, A., Martin-Puertas, C., Blockley, S. P., Smith, V. C., Tomlinson, E. L. (2015): The Late Quaternary tephrostratigraphy of annually laminated sediments from Meerfelder Maar, Germany. - Quaternary Science Reviews, 122, p. 192-206. | doi:10.1016/j.quascirev.2015.05.025
- Neugebauer, I., Brauer, A., Schwab, M. J., Dulski, P., Frank, U., Hadzhiivanova, E., Kitagawa, H., Litt, T., Schiebel, V., Taha, N., Waldmann, N. D., DSDDP Scientific Party (2015): Evidences for centennial dry periods at ~ 3300 and ~ 2800 cal. yr BP from micro-facies analyses of the Dead Sea sediments. - Holocene, 25, 8, p. 1358-1371. | doi:10.1177/0959683615584208
- Wutke, K., Wulf, S., Tomlinson, E. L., Hardiman, M., Dulski, P., Luterbacher, J., Brauer, A. (2015): Geochemical properties and environmental impacts of seven Campanian tephra layers deposited between 40 and 38 ka BP in the varved lake sediments of Lago Grande di Monticchio, southern Italy. - Quaternary Science Reviews, 118, p. 67-83. | doi:10.1016/j.quascirev.2014.05.017
- Martin-Puertas, C., Brauer, A., Wulf, S., Ott, F., Lauterbach, S., Dulski, P. (2014): Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations. - Climate of the Past, 10, 6, p. 2099-2114. | doi:10.5194/cp-10-2099-2014
- Neugebauer, I., Brauer, A., Schwab, M. J., Waldmann, N. D., Enzel, Y., Kitagawa, H., Torfstein, A., Frank, U., Dulski, P., Agnon, A., Ariztegui, D., Ben-Avraham, Z., Goldstein, S. L., Stein, M., DSDDP Scientific Party (2014): Lithology of the long sediment record recovered by the ICDP Dead Sea Deep Drilling Project (DSDDP). - Quaternary Science Reviews, 102, p. 149-165. | doi:10.1016/j.quascirev.2014.08.013
- Rach, O., Brauer, A., Wilkes, H., Sachse, D. (2014): Delayed hydrological response to Greenland cooling at the onset of the Younger Dryas in western Europe. - Nature Geoscience, 7, 2, p. 109-112. | doi:10.1038/ngeo2053
- Czymzik, M., Brauer, A., Dulski, P., Plessen, B., Naumann, R., von Grafenstein, U., Scheffler, R. (2013): Orbital and solar forcing of shifts in Mid- to Late Holocene flood intensity from varved sediments of pre-alpine Lake Ammersee (southern Germany). - Quaternary Science Reviews, 61, p. 96-110. | doi:10.1016/j.quascirev.2012.11.010
- Lane, C. S., Brauer, A., Blockley, S. P. E., Dulski, P. (2013): Volcanic ash reveals time-transgressive abrupt climate change during the Younger Dryas. - Geology, 41, 12, p. 1251-1254. | doi:10.1130/G34867.1
- Wulf, S., Keller, J., Paterne, M., Mingram, J., Lauterbach, S., Opitz, S., Sottili, G., Albert, P.G., Satow, C., Tomlinson, E.L., Viccaro, M., Brauer, A. (2012). The 100-133 ka record of Italian explosive volcanism and revised tephrochronology of Lago Grande di Monticchio. Quaternary Science Reviews, 58, 104-123.
