CL1.23

In recent decades, quantitative methods have become increasingly important in the field of palaeoenvironmental, palaeoclimatic and palaeohydrological reconstruction, due to the need for comparison between different records and to provide boundary conditions for computational modelling. Continental environmental archives (e.g. speleothems, lake sediments, land snails, rivers, or peatlands) are often highly temporally resolved (subdecadal to seasonal) and may provide more direct information about atmospheric and hydrological processes than marine archives. The wide variety of archive types available on land also allows for intercomparison and ground-truthing of results from different techniques and proxies, and multi-proxy reconstructions from the same archive can disentangle local and supra-regional environmental conditions. This approach is particularly useful for the reconstruction of hydrological dynamics, which are challenging to reconstruct due to their high spatial variability, signal buffering, nonlinearities and uncertainties in the response of palaeoclimate archives and proxies. For example, climate-independent factors such as land cover change can affect the local to regional water availability recorded in proxies.

This session aims to highlight recent advances in the use of innovative and quantitative proxies to reconstruct past environmental change on land. We present studies of various continental archives, including but not limited to carbonates (caves, palaeosols, snails), sediments (lakes, peatlands, rivers, alluvial fans), and biological proxies (tree rings, fossil assemblages, biomarkers). We particularly include studies involving the calibration of physical and chemical proxies that incorporate modern transfer functions, forward modeling and/or geochemical modeling to predict proxy signals, and quantitative estimates of past temperature and palaeohydrological dynamics. We also include reconstructions of temperature and hydrologic variability over large spatial scales and palaeoclimate data assimilation. This session will provide a forum for discussing recent innovations and future directions in the development of terrestrial palaeoenvironmental proxies on seasonal to multi-millennial timescales.

Public information:
Please note that the order and number of presentations has been changed as some authors could not attend under the circumstances, or have parallel duties.

Authors are kindly asked to upload display material by Friday, 1st May, 2020 so that there is the weekend prior to the online chat for viewing the displays.

Our Programme for the Live Chat on 4th May, 2020, 10.45 - 12.30 CET

10.45 - 10.50 Sign in and introduction to session

10.50 - 10.56
D3703 | EGU2020-12712
Changes in biogeochemistry recorded in the Lisan formation and the Dead Sea Basin
Alexandra Turchyn, Harold Bradbury, and Adi Torfstein

10.56 - 11.02
D3707 | EGU2020-21994
Holocene climate in Northern Urals (Komi Republic, Russia): a multiproxy approach based on pollen and brGDGTs
Chéïma Barhoumi, Sébastien Joannin, Adam A. Ali, Guillemette Ménot, Yulia Golubeva, Dmitri Subetto, Alexander Kryshen, Igor Drobyshev, and Odile Peyron

11.02 - 11.08
D3708 | EGU2020-1150
Primary production in a kettle lake (Canada) was not driven by effective moisture over the last ~900 years
Rebecca Doyle, Zijun Liu, Jacob Walker, Ryan Hladyniuk, Katrina Moser, and Fred Longstaffe

11.08 - 11.14
D3731 | EGU2020-18227
Reconstructing past hydrology from drift sand archives: possibilities and limitations
Koen Beerten, Wouter van der Meer, Koen Hebinck, Miel Schurmans, and Jan Bastiaens

11.14 - 11.20
D3709 | EGU2020-19247
Global hydroclimate of the Last Interglacial: precipitation, river discharge, floods
Paolo Scussolini and the Last Interglacial Floods

11.20 - 11.26
D3705 | EGU2020-18100
A 1,600 year record of paleoseasonality from the neotropics of Central America and its implications for rainfall predictability in agricultural societies
Keith Prufer, Sebastian Breitenbach, James Baldini, Tobias Braun, Erin Ray, Lisa Baldini, Victor Polyak, Franziska Lechleitner, Norbert Marwan, Douglas Kennett, and Yemane Asmerom


D3725 | EGU2020-11105
CANCELLED :-(
Nehme et al.: Speleothem record from Pentadactylos cave (Cyprus): high resolution insight into climatic variations during MIS 6 and MIS 5

11.26 - 11.32
D3723 | EGU2020-2397
Application of novel trace analysis methods for lignin and levoglucosan in flowstone samples from New Zealand during the Holocene
Anja Beschnitt and Thorsten Hoffmann

11.32 - 11.38
D3724 | EGU2020-2413
Trace analysis of levoglucosan and lignin-phenols in speleothems by HILIC-UHPLC-ESI-HRMS: A new method
Julia Homann, Anja Beschnitt, and Thorsten Hoffmann

11.38 - 11.44
D3726 | EGU2020-16898
Rainfall seasonality changes in northern India across the 4.2 ka event
Alena Giesche, Sebastian F.M. Breitenbach, Norbert Marwan, Adam Hartland, Birgit Plessen, Jess F. Adkins, Gerald H. Haug, Amanda French, Cameron A. Petrie, and David A. Hodell

11.44 - 11.50
D3720 | EGU2020-992
Structural ecosystem change in Holocene chironomid assemblages
Roseanna Mayfield, Peter Langdon, John Dearing, Patrick Doncaster, and Rong Wang

11.50 - 11.56
D3711 | EGU2020-5311
Paleoclimatic reconstruction studies in lake sediments: major proxies, technical evolution and database
Paula Bianchini, Elder Yokoyama, and Luciana Prado

11.56 - 12.02
D3715 | EGU2020-12592
Biomarker (brGDGT) degradation and production in lacustrine surface sediments: Implications for paleoclimate reconstructions
Cindy De Jonge, Annika Fiskal, Xingguo Han, and Mark Lever

12.02 - 12.08
D3721 | EGU2020-8457
A theory of palaeoclimate reconstruction
Mengmeng Liu, Iain Colin Prentice, Cajo ter Braak, and Sandy Harrison

12.08 - 12.14
D3729 | EGU2020-4240
What we talk about when we talk about seasonality?
Ola Kwiecien

12.14 - 12.20
D3732 | EGU2020-4887
Reconstructions of past sediment and water discharges from fluvial-fill terraces in the southern Central Andes of NW Argentina
Stefanie Tofelde, Taylor Schildgen, Andrew Wickert, Manfred Strecker, and Ricardo Alonso

12.20 - 12.30 Summary of session

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Convener: Sebastian F.M. Breitenbach | Co-conveners: Ola Kwiecien, Elisabeth DietzeECSECS, Mariusz Lamentowicz, Michał Słowiński
Displays
| Attendance Mon, 04 May, 10:45–12:30 (CEST)

In recent decades, quantitative methods have become increasingly important in the field of palaeoenvironmental, palaeoclimatic and palaeohydrological reconstruction, due to the need for comparison between different records and to provide boundary conditions for computational modelling. Continental environmental archives (e.g. speleothems, lake sediments, land snails, rivers, or peatlands) are often highly temporally resolved (subdecadal to seasonal) and may provide more direct information about atmospheric and hydrological processes than marine archives. The wide variety of archive types available on land also allows for intercomparison and ground-truthing of results from different techniques and proxies, and multi-proxy reconstructions from the same archive can disentangle local and supra-regional environmental conditions. This approach is particularly useful for the reconstruction of hydrological dynamics, which are challenging to reconstruct due to their high spatial variability, signal buffering, nonlinearities and uncertainties in the response of palaeoclimate archives and proxies. For example, climate-independent factors such as land cover change can affect the local to regional water availability recorded in proxies.

This session aims to highlight recent advances in the use of innovative and quantitative proxies to reconstruct past environmental change on land. We present studies of various continental archives, including but not limited to carbonates (caves, palaeosols, snails), sediments (lakes, peatlands, rivers, alluvial fans), and biological proxies (tree rings, fossil assemblages, biomarkers). We particularly include studies involving the calibration of physical and chemical proxies that incorporate modern transfer functions, forward modeling and/or geochemical modeling to predict proxy signals, and quantitative estimates of past temperature and palaeohydrological dynamics. We also include reconstructions of temperature and hydrologic variability over large spatial scales and palaeoclimate data assimilation. This session will provide a forum for discussing recent innovations and future directions in the development of terrestrial palaeoenvironmental proxies on seasonal to multi-millennial timescales.

Public information: Please note that the order and number of presentations has been changed as some authors could not attend under the circumstances, or have parallel duties.

Authors are kindly asked to upload display material by Friday, 1st May, 2020 so that there is the weekend prior to the online chat for viewing the displays.

Our Programme for the Live Chat on 4th May, 2020, 10.45 - 12.30 CET

10.45 - 10.50 Sign in and introduction to session

10.50 - 10.56
D3703 | EGU2020-12712
Changes in biogeochemistry recorded in the Lisan formation and the Dead Sea Basin
Alexandra Turchyn, Harold Bradbury, and Adi Torfstein

10.56 - 11.02
D3707 | EGU2020-21994
Holocene climate in Northern Urals (Komi Republic, Russia): a multiproxy approach based on pollen and brGDGTs
Chéïma Barhoumi, Sébastien Joannin, Adam A. Ali, Guillemette Ménot, Yulia Golubeva, Dmitri Subetto, Alexander Kryshen, Igor Drobyshev, and Odile Peyron

11.02 - 11.08
D3708 | EGU2020-1150
Primary production in a kettle lake (Canada) was not driven by effective moisture over the last ~900 years
Rebecca Doyle, Zijun Liu, Jacob Walker, Ryan Hladyniuk, Katrina Moser, and Fred Longstaffe

11.08 - 11.14
D3731 | EGU2020-18227
Reconstructing past hydrology from drift sand archives: possibilities and limitations
Koen Beerten, Wouter van der Meer, Koen Hebinck, Miel Schurmans, and Jan Bastiaens

11.14 - 11.20
D3709 | EGU2020-19247
Global hydroclimate of the Last Interglacial: precipitation, river discharge, floods
Paolo Scussolini and the Last Interglacial Floods

11.20 - 11.26
D3705 | EGU2020-18100
A 1,600 year record of paleoseasonality from the neotropics of Central America and its implications for rainfall predictability in agricultural societies
Keith Prufer, Sebastian Breitenbach, James Baldini, Tobias Braun, Erin Ray, Lisa Baldini, Victor Polyak, Franziska Lechleitner, Norbert Marwan, Douglas Kennett, and Yemane Asmerom


D3725 | EGU2020-11105
CANCELLED :-(
Nehme et al.: Speleothem record from Pentadactylos cave (Cyprus): high resolution insight into climatic variations during MIS 6 and MIS 5

11.26 - 11.32
D3723 | EGU2020-2397
Application of novel trace analysis methods for lignin and levoglucosan in flowstone samples from New Zealand during the Holocene
Anja Beschnitt and Thorsten Hoffmann

11.32 - 11.38
D3724 | EGU2020-2413
Trace analysis of levoglucosan and lignin-phenols in speleothems by HILIC-UHPLC-ESI-HRMS: A new method
Julia Homann, Anja Beschnitt, and Thorsten Hoffmann

11.38 - 11.44
D3726 | EGU2020-16898
Rainfall seasonality changes in northern India across the 4.2 ka event
Alena Giesche, Sebastian F.M. Breitenbach, Norbert Marwan, Adam Hartland, Birgit Plessen, Jess F. Adkins, Gerald H. Haug, Amanda French, Cameron A. Petrie, and David A. Hodell

11.44 - 11.50
D3720 | EGU2020-992
Structural ecosystem change in Holocene chironomid assemblages
Roseanna Mayfield, Peter Langdon, John Dearing, Patrick Doncaster, and Rong Wang

11.50 - 11.56
D3711 | EGU2020-5311
Paleoclimatic reconstruction studies in lake sediments: major proxies, technical evolution and database
Paula Bianchini, Elder Yokoyama, and Luciana Prado

11.56 - 12.02
D3715 | EGU2020-12592
Biomarker (brGDGT) degradation and production in lacustrine surface sediments: Implications for paleoclimate reconstructions
Cindy De Jonge, Annika Fiskal, Xingguo Han, and Mark Lever

12.02 - 12.08
D3721 | EGU2020-8457
A theory of palaeoclimate reconstruction
Mengmeng Liu, Iain Colin Prentice, Cajo ter Braak, and Sandy Harrison

12.08 - 12.14
D3729 | EGU2020-4240
What we talk about when we talk about seasonality?
Ola Kwiecien

12.14 - 12.20
D3732 | EGU2020-4887
Reconstructions of past sediment and water discharges from fluvial-fill terraces in the southern Central Andes of NW Argentina
Stefanie Tofelde, Taylor Schildgen, Andrew Wickert, Manfred Strecker, and Ricardo Alonso

12.20 - 12.30 Summary of session

Session assets

Session materials Download all presentations (53MB)