VARDA (VARved sediments DAtabase) – providing and connecting proxy data from annually laminated lake sediments-Reference-Cited by-同舟云学术

VARDA (VARved sediments DAtabase) – providing and connecting proxy data from annually laminated lake sediments

Published:2020-09-25 Issue:3 Volume:12 Page:2311-2332
ISSN:1866-3516
Container-title:Earth System Science Data
language:en
Short-container-title:Earth Syst. Sci. Data

Author:

Ramisch Arne^ORCID,Brauser Alexander^ORCID,Dorn Mario^ORCID,Blanchet Cecile^ORCID,Brademann Brian,Köppl Matthias,Mingram Jens,Neugebauer Ina^ORCID,Nowaczyk Norbert,Ott Florian,Pinkerneil Sylvia,Plessen Birgit,Schwab Markus J.,Tjallingii Rik^ORCID,Brauer Achim

Abstract

Abstract. Varved lake sediments provide climatic records with seasonal to annual resolution and low associated age uncertainty. Robust and detailed comparison of well-dated and annually laminated sediment records is crucial for reconstructing abrupt and regionally time-transgressive changes as well as validation of spatial and temporal trajectories of past climatic changes. The VARved sediments DAtabase (VARDA) presented here is the first data compilation for varve chronologies and associated palaeoclimatic proxy records. The current version 1.0 allows detailed comparison of published varve records from 95 lakes. VARDA is freely accessible and was created to assess outputs from climate models with high-resolution terrestrial palaeoclimatic proxies. VARDA additionally provides a technical environment that enables us to explore the database of varved lake sediments using a connected data model and can generate a state-of-the-art graphic representation of a multisite comparison. This allows the reassessment of existing chronologies and tephra events to synchronize and compare even distant varved lake records. Furthermore, the present version of VARDA permits the exploration of varve thickness data. In this paper, we report in detail on the data-mining and compilation strategies for the identification of varved lakes and assimilation of high-resolution chronologies, as well as the technical infrastructure of the database. Additional palaeoclimatic proxy data will be provided in forthcoming updates. The VARDA graph database and user interface can be accessed online at https://varve.gfz-potsdam.de (last access: 15 September 2020), all datasets of version 1.0 are available at https://doi.org/10.5880/GFZ.4.3.2019.003 (Ramisch et al., 2019).

Funder

Bundesministerium für Bildung und Forschung

Publisher

Copernicus GmbH

Subject

General Earth and Planetary Sciences

Link

https://essd.copernicus.org/articles/12/2311/2020/essd-12-2311-2020.pdf

Reference159 articles.

1. Allen, J. R. M., Brandt, U., Brauer, A., Hubberten, H.-W., Huntley, B., Keller, J., Kraml, M., Mackensen, A., Mingram, J., Negendank, J. F. W., Nowaczyk, N. R., Oberhänsli, H., Watts, W. A., Wulf, S., and Zolitschka, B.: Rapid environmental changes in southern Europe during the last glacial period, Nature, 400, 740–743, https://doi.org/10.1038/23432, 1999.

2. Amann, B., Szidat, S., and Grosjean, M.: A millennial-long record of warm season precipitation and flood frequency for the North-western Alps inferred from varved lake sediments: implications for the future, Quaternary Sci. Rev., 115, 89–100, https://doi.org/10.1016/j.quascirev.2015.03.002, 2015.

3. Andersen, K. K., Azuma, N., Barnola, J. M., Bigler, M., Biscaye, P., Caillon, N., Chappellaz, J., Clausen, H. B., Dahl-Jensen, D., Fischer, H., Flückiger, J., Fritzsche, D., Fujii, Y., Goto-Azuma, K., Grønvold, K., Gundestrup, N. S., Hansson, M., Huber, C., Hvidberg, C. S., Johnsen, S. J., Jonsell, U., Jouzel, J., Kipfstuhl, S., Landais, A., Leuenberger, M., Lorrain, R., Masson-Delmotte, V., Miller, H., Motoyama, H., Narita, H., Popp, T., Rasmussen, S. O., Raynaud, D., Rothlisberger, R., Ruth, U., Samyn, D., Schwander, J., Shoji, H., Siggard-Andersen, M. L., Steffensen, J. P., Stocker, T., Sveinbjörnsdóttir, A. E., Svensson, A., Takata, M., Tison, J. L., Thorsteinsson, T., Watanabe, O., Wilhelms, F., and White, J. W. C.: High-resolution record of Northern Hemisphere climate extending into the last interglacial period, Nature, 431, 147–151, https://doi.org/10.1038/nature02805, 2004.