Pleistocene PaleoDEMs for GIA modelling and ice age palaeogeography of the North Sea Basin

F.S. Busschers; K.M. Cohen

Abstract

Session: Session: DEMs, LEMs and PalaeoDEMs: latest developments in Geosciences

An important input for modelling coastline shifting over ice age periods with sea-level fall and rise, is palaeotopography. Palaeotopography, however, is difficult information to acquire and usually sophisticated geophysical glacio-isostatic adjustment (GIA) models are run over just the modern bathymetry. We present a set of palaeoDEMs for the last two glacial Terminations (c. 130 resp. c. 15 ka) for the southern North Sea Basin (onshore and offshore parts; Netherlands, Belgium and British surroundings), including a warping DEM to correct for long-term ‘background’ subsidence.

The palaeoDEMs are constructed using techniques developed for high resolution geomodelling by TNO Geological Survey of the Netherlands, using borehole data and surface bathymetry/topography grids and scripting that honours lithostratigraphical order. The warping DEMs make use of the thickness mapping at Quaternary and Neogene time scales. Together, these sets can be used to patch the modern bathymetry and ice-thickness DEMs that are currently used in GIA modelling.

Original language	English
Publication status	Published - Apr 2017
Event	European Geosciences Union General Assembly 2017 - Austria Centre Vienna, Vienna, Austria Duration: 23 Apr 2017 → 28 Apr 2017 http://www.egu2017.eu/

Conference

Conference	European Geosciences Union General Assembly 2017
Abbreviated title	EGU2017
Country/Territory	Austria
City	Vienna
Period	23/04/17 → 28/04/17
Internet address	http://www.egu2017.eu/

Keywords

North Sea
PalaeoDEMs

Palaeogeographical time series maps of the Pleistocene and Holocene lowland landscapes in and around the North Sea.
Cohen, K. M., 30 Aug 2017, p. 353.
Research output: Contribution to conference › Abstract › Other research output

Open Access
File
North Sea palaeogeographical reconstructions for the last 1 Ma
Cohen, K. M., Gibbard, P. L. & Weerts, H. J. T., 2014, In: Netherlands Journal of Geosciences. 93(1), issue 1-2, p. 7-29 23 p.
Research output: Contribution to journal › Article › Academic › peer-review

Cite this

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title = "Pleistocene PaleoDEMs for GIA modelling and ice age palaeogeography of the North Sea Basin",

abstract = "Session: Session: DEMs, LEMs and PalaeoDEMs: latest developments in Geosciences An important input for modelling coastline shifting over ice age periods with sea-level fall and rise, is palaeotopography. Palaeotopography, however, is difficult information to acquire and usually sophisticated geophysical glacio-isostatic adjustment (GIA) models are run over just the modern bathymetry. We present a set of palaeoDEMs for the last two glacial Terminations (c. 130 resp. c. 15 ka) for the southern North Sea Basin (onshore and offshore parts; Netherlands, Belgium and British surroundings), including a warping DEM to correct for long-term {\textquoteleft}background{\textquoteright} subsidence. The palaeoDEMs are constructed using techniques developed for high resolution geomodelling by TNO Geological Survey of the Netherlands, using borehole data and surface bathymetry/topography grids and scripting that honours lithostratigraphical order. The warping DEMs make use of the thickness mapping at Quaternary and Neogene time scales. Together, these sets can be used to patch the modern bathymetry and ice-thickness DEMs that are currently used in GIA modelling.",

keywords = "North Sea, PalaeoDEMs",

author = "F.S. Busschers and K.M. Cohen",

year = "2017",

month = apr,

language = "English",

note = "European Geosciences Union General Assembly 2017, EGU2017 ; Conference date: 23-04-2017 Through 28-04-2017",

url = "http://www.egu2017.eu/",

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TY - CONF

T1 - Pleistocene PaleoDEMs for GIA modelling and ice age palaeogeography of the North Sea Basin

AU - Busschers, F.S.

AU - Cohen, K.M.

PY - 2017/4

Y1 - 2017/4

N2 - Session: Session: DEMs, LEMs and PalaeoDEMs: latest developments in Geosciences An important input for modelling coastline shifting over ice age periods with sea-level fall and rise, is palaeotopography. Palaeotopography, however, is difficult information to acquire and usually sophisticated geophysical glacio-isostatic adjustment (GIA) models are run over just the modern bathymetry. We present a set of palaeoDEMs for the last two glacial Terminations (c. 130 resp. c. 15 ka) for the southern North Sea Basin (onshore and offshore parts; Netherlands, Belgium and British surroundings), including a warping DEM to correct for long-term ‘background’ subsidence. The palaeoDEMs are constructed using techniques developed for high resolution geomodelling by TNO Geological Survey of the Netherlands, using borehole data and surface bathymetry/topography grids and scripting that honours lithostratigraphical order. The warping DEMs make use of the thickness mapping at Quaternary and Neogene time scales. Together, these sets can be used to patch the modern bathymetry and ice-thickness DEMs that are currently used in GIA modelling.

AB - Session: Session: DEMs, LEMs and PalaeoDEMs: latest developments in Geosciences An important input for modelling coastline shifting over ice age periods with sea-level fall and rise, is palaeotopography. Palaeotopography, however, is difficult information to acquire and usually sophisticated geophysical glacio-isostatic adjustment (GIA) models are run over just the modern bathymetry. We present a set of palaeoDEMs for the last two glacial Terminations (c. 130 resp. c. 15 ka) for the southern North Sea Basin (onshore and offshore parts; Netherlands, Belgium and British surroundings), including a warping DEM to correct for long-term ‘background’ subsidence. The palaeoDEMs are constructed using techniques developed for high resolution geomodelling by TNO Geological Survey of the Netherlands, using borehole data and surface bathymetry/topography grids and scripting that honours lithostratigraphical order. The warping DEMs make use of the thickness mapping at Quaternary and Neogene time scales. Together, these sets can be used to patch the modern bathymetry and ice-thickness DEMs that are currently used in GIA modelling.

KW - North Sea

KW - PalaeoDEMs

M3 - Abstract

T2 - European Geosciences Union General Assembly 2017

Y2 - 23 April 2017 through 28 April 2017

ER -

Pleistocene PaleoDEMs for GIA modelling and ice age palaeogeography of the North Sea Basin

Abstract

Conference

Keywords

Fingerprint

Research output

Palaeogeographical time series maps of the Pleistocene and Holocene lowland landscapes in and around the North Sea.

North Sea palaeogeographical reconstructions for the last 1 Ma

Cite this