Quaternary Glaciations—Extent and Chronology, Part I: Europe, J. Ehlers, P.L. Gibbard (Eds.). Elsevier, Amsterdam (2004), 488pp., €185, USD 210, GBP 123.50, ISBN: 0-444-51462-7

Boulder height - exposure age relationships from a global glacial Be-10 compilation

Urbanization is a global phenomenon and currently more than half of the world’s population lives in urban areas. Studies on geomorphological heritage and the development of specific methods of investigation (assessment, inventories, cartography) are, however, relatively rare and limited. This paper first describes the relationships between urbanization and geomorphology. Secondly, it presents an overview of the main works on the urban geomorphological heritage. Then, the main methods of investigation are presented. Finally, we discuss the challenging issues concerning the protection and the promotion of the urban geomorphological heritage.

https://sciendo.com/pdf/10.1515/quageo-2017-0022

Urban geomorphological heritage. An overview.

Late Quaternary glacial phases in the Iberian Peninsula

This chapter brings a review of current evidences of continental and mountain glaciation in Czechia and provides a closer look at the mid Pleistocene (Elsterian and Saalian) continental glaciation limits and chronology from northern part of the country, as well as late Pleistocene mountain glaciations in the Krkonose and Sumava Mountains.

Pleistocene Glaciations of Czechia

10Be exposure age chronology of the last glaciation in the Krkonoše Mountains, Central Europe

https://northumbria-test.eprints-hosting.org/id/document/263258

On the potential for a bottom active layer below coastal permafrost: the impact of seawater on permafrost degradation imaged by electrical resistivity tomography (Hornsund, SW Spitsbergen)

The paper reviews recent advances in landform mapping and interpretation in the mountainous terrain of the Sudetes (SW Poland), possible due to the availability of high-resolution airborne LiDAR data. They are particularly useful in the recognition of minor landforms and their spatial patterns in the montane forest belt and in the dwarf pine zone in the most elevated parts of the Sudetes. The use of LiDAR data has allowed to both re-evaluate landforms known before, especially their extent and cross-relationships, as well as to discover surface features that have escaped attention before. The examples discussed include glacial and periglacial landforms in the Karkonosze, morphological signatures of mass movements in the Stołowe Mountains, fluvial features and morphotectonic analysis in the Izerskie Mountains. Although LiDAR immensely increases the scope for landform recognition and mapping, image interpretation should be verified in the field. Despite theoretical capability of LiDAR-derived models to show even landforms 1–2 m in length, 4–6 m seems the more realistic threshold size unless surface features are distinctly linear and continue over long distances.

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How high - resolution DEM based on airborne LiDAR helped to reinterpret landforms : examples from the Sudetes, SW Poland

Exposure ages and relative-age data are presented from eight sites in the Łomnica and Łomniczka valleys to provide essential information for reconstructing local glaciation chronology. A combination of 10Be exposure ages and Schmidt hammer data obtained for moraines indicate relatively short period of glacier accumulation lasting from 17.0 0.4 ka to 13.6 0.9 ka. Exposure age of 8.4 0.3 ka measured on the lowermost section of the Łomnica cirque headwall further confirms the view of glacier preservation in favourable sites until the beginning of the Holocene. A comparison of the obtained chronological data with timing of mountain glaciation in the nearby Upa Valley is used to propose the first correlative model of Late Quaternary glaciation in the eastern part of the Krkonose Mountains. The correlation implies that the lowermost preserved moraines originated during the local maximum of the last glaciation whereas recessional moraines were deposited until the Lateglacial period. A subsequent melting of glaciers terminated at the beginning of the Holocene. The implications of the model are discussed and further investigations are suggested to extend its validity to the whole mountain area.

Use of 10 Be exposure ages and Schmidt hammer data for correlation of moraines in the Krkonoše Mountains, Poland/Czech Republic

In urbanized areas, particularly in lowland terrains and floors of large river valleys, the natural land configuration is often hard to recognize due to a long history of human activity. Accordingly, archaeological works in cities, which supply knowledge on settlement conditions, are usually accompanied by geological and geomophological research. Lately, data from light detection and ranging (LiDAR) have become a valuable source of information on urban land configuration. Geophysical methods are also becoming increasingly popular in background studies. The paper presents a method of using and linking these sources of spatial information about landforms in such areas. The main aim is to identify to what extent these complementary sources of data and the proposed method can be used in such a specific environment to reconstruct natural, buried terrain morphology. The city of Wroclaw in Central Europe serves as an example. To this end geomorphometric studies were conducted with the use of digital elevation models (DEMs) based on LiDAR scanning and derivated land-surface parameters—SAGA Wetness Index, Channel Network Base Level and Altitude above Channel Network. The study also involved determining morphological edges and measurements of the meanders of the Odra, as well as expanding information on the spatial distribution of alluvia and the structure of slope breaks. To this end, geophysical measurements were conducted using the Two-Dimensional Electrical Resistivity Tomography method. Additionally, five typical sequences of man-made ground present within the perimeter of the city were distinguished. As a result, a map of the main landforms of Wroclaw is presented. Finally, we argue that although high resolution DEM and derivate land-surface parameters are very useful in terrain analysis, places with thick man-made ground or strongly levelled areas must be recognized by geoarchaeological excavations or geological bore holes. The geophysical survey is useful to identify buried morphological edges and older relief elements in open areas.

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LiDAR and 2D Electrical Resistivity Tomography as a Supplement of Geomorphological Investigations in Urban Areas: a Case Study from the City of Wrocław (SW Poland)

Andrzej Traczyk

Papers

10Be exposure age chronology of the last glaciation in the Krkonoše Mountains, Central Europe

On the potential for a bottom active layer below coastal permafrost: the impact of seawater on permafrost degradation imaged by electrical resistivity tomography (Hornsund, SW Spitsbergen)

How high - resolution DEM based on airborne LiDAR helped to reinterpret landforms : examples from the Sudetes, SW Poland

Use of 10 Be exposure ages and Schmidt hammer data for correlation of moraines in the Krkonoše Mountains, Poland/Czech Republic

LiDAR and 2D Electrical Resistivity Tomography as a Supplement of Geomorphological Investigations in Urban Areas: a Case Study from the City of Wrocław (SW Poland)