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A 200 ka glaciation history from NW Svalbard
Late Quaternary sedimentary units at Kongsfjordhallet, NW Svalbard, represent five cycles of glaciations and subsequent deglaciations during high relative sea levels. The high sea-level events are interpreted as glacioisostatically induced and imply preceding regional glaciations, which we constrain in time by luminescence and radiocarbon ages to just prior to ~195 ka, ~130 ka, ~85 ka, ~60 ka and
Facies model for a rebound cycle based on mid-late Quaternary sediments in the Kongsfjorden area, NW Svalbard
Hur kan mentometrar användas till att stödja studenters lärande under föreläsningar?
Mentometrar (”clickers”) är ett verktyg som kan användas för att göra snabba utvärderingar av studenters kunskap och förståelse under t.ex. en föreläsning (s.k. classroom assessment), och studier har visat att de förbättrar både lärande och uppmärksamhet (Keough 2012). Genom sådana formativa utvärderingar får både studenter och lärare omedelbar återkoppling som kan hjälpa till att identifiera områ
A 200 ka glaciation history from NW Svalbard
In the Kongsfjorden area in NW Svalbard, there are several stratigraphic sites containing information on Quaternary environmental change, and which can be used to reconstruct local depositional conditions, regional events such as large-scale glaciations and relative sea-level change. Here, we present results from an investigation of one of these sites, the Kongsfjordhallet coastal sections, which
Non-glacial deposits key to the late Quaternary history of NW Svalbard
Late Glacial and Early Holocene glacier fluctuations in the southern Écrins massif (French Alps)
Enhancing smoothness in amplitude modulated sparse signals
Roof-tiles and tile-roofs at Poggio Civitate (Murlo) : the emergence of central Italic tile industry
Estimation of backscattered echoes from underwater targets using block sparsity
In this work, we introduce a block sparse reconstruction technique to estimate backscattered echoes from underwater targets. The backscattered field of a spherical shell or the broadside scattering of a cylindrical shell contains a specular reflection as well as some elastic leaky surface waves, while the elastic parts appear as a periodic signal, which may be modeled using a block pattern. Thus,